CN113902457B - Method and device for evaluating reliability of house source information, electronic equipment and storage medium - Google Patents
Method and device for evaluating reliability of house source information, electronic equipment and storage medium Download PDFInfo
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Abstract
The embodiment of the invention discloses a method and a device for evaluating reliability of house source information, electronic equipment and a storage medium. The method comprises the following steps: respectively acquiring respective house source basic information about the same address from a plurality of information sources, wherein the house source basic information comprises at least one information dimension; determining a weighting coefficient of each house source basic information on each information dimension based on consistency check of the plurality of house source basic information on each information dimension; and determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension. The method and the system can evaluate the reliability of the house source information of a plurality of information sources, and improve the reliability of the house source information.
Description
Technical Field
The embodiment of the invention relates to the technical field of house source analysis, in particular to a method and a device for evaluating the reliability of house source information, electronic equipment and a storage medium.
Background
A house source refers to a resource rented or sold by a house. As a platform side, in a multi-trust scenario in which a plurality of information sources (e.g., a plurality of broker brands) trust respectively a plurality of different house information with respect to the same house, it is difficult to perform authenticity verification on each house information.
Currently, prior art house source verification methods rely primarily on manual verification based on a broker entered owner phone. However, in a multi-trust scene, the authenticity of the owner telephone cannot be guaranteed, and the existing manual verification mode is difficult to effectively verify the house source information in the multi-trust scene.
Disclosure of Invention
The embodiment of the invention provides a method and a device for evaluating reliability of house source information, electronic equipment and a storage medium.
The technical scheme of the embodiment of the invention is as follows:
a method for evaluating reliability of house source information comprises the following steps:
acquiring respective house source basic information about the same address from a plurality of information sources respectively, wherein the house source basic information comprises at least one information dimension;
determining a weighting coefficient of each house source basic information on each information dimension based on consistency check of the plurality of house source basic information on each information dimension;
and determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension.
In an exemplary embodiment, the determining the reliability assessment value of each source basis information based on the weighting coefficient of each source basis information in each information dimension includes:
calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n )；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting factor in the nth information dimension.
In an exemplary embodiment, further comprising:
respectively acquiring house source maintenance information corresponding to the house source basic information from the plurality of information sources, wherein the house source maintenance information comprises at least one action dimension;
the determining the reliability assessment value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension comprises the following steps:
calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is k Reliability assessment value for k-th action dimension; t is t k Time to the present for the first action of the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time.
In an exemplary embodiment, further comprising:
respectively acquiring house source maintenance information corresponding to the house source basic information from the plurality of information sources, wherein the house source maintenance information comprises at least one action dimension;
the determining the reliability assessment value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension comprises the following steps:
calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n )+∑(h k ×w k -h k ×w k (t k -β)×α)；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is k A reliability assessment value for the kth action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time; w is a k Is a weighting factor in the kth action dimension determined based on the number of information sources.
In an exemplary embodiment, the determining a weighting factor of each of the house source basic information in each of the information dimensions based on the consistency check of the plurality of house source basic information in each of the information dimensions includes:
when a mode can be determined in the information dimension, performing consistency verification on each source basic information based on the mode; wherein: for the house source basic information which does not pass the consistency verification, determining a weighting coefficient of the information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient;
when the mode cannot be determined in the information dimension, performing consistency verification on the basic information of each house source based on the median in the information dimension; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient;
the information dimension comprises at least one of: area; a price; a house type; an owner telephone; the action dimension includes at least one of: performing actual surveying and shooting; shooting in virtual reality; uploading a house book; uploading the key; filling evaluation information; fill in follow-up information.
In an exemplary embodiment, further comprising:
and judging whether the reliability evaluation value of the house source basic information is larger than a preset threshold value, if so, determining that the house source basic information is real, otherwise, not determining that the house source basic information is real.
An evaluation device for reliability of house source information, comprising:
the system comprises an acquisition module, a storage module and a display module, wherein the acquisition module is used for respectively acquiring respective house source basic information about the same address from a plurality of information sources, and the house source basic information comprises at least one information dimension;
the first determining module is used for determining a weighting coefficient of each house source basic information in each information dimension based on consistency check of the plurality of house source basic information in each information dimension;
and the second determination module is used for determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension.
In the exemplary embodiment, it is contemplated that,a second determination module for calculating a reliability evaluation value R of the house source basic information acquired from the m-th information source m Wherein R is m ＝∑(i n ×w n )；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting factor in the nth information dimension.
In an exemplary embodiment, the obtaining module is further configured to obtain, from the plurality of information sources, house source maintenance information corresponding to respective house source basic information, respectively, where the house source maintenance information includes at least one action dimension; a second determination module for calculating a reliability evaluation value R of the house source basic information acquired from the m-th information source m Wherein R is m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}; wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is k A reliability assessment value for the kth action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time.
In an exemplary embodiment, the obtaining module is further configured to obtain, from the plurality of information sources, house source maintenance information corresponding to respective house source basic information, respectively, where the house source maintenance information includes at least one action dimension; a second determination module for calculating a reliability evaluation value R of the house source basic information acquired from the m-th information source m Wherein R is m ＝∑(i n ×w n )+∑(h k ×w k -h k ×w k (t k - β) × α); wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is a total of k Reliability assessment value for k-th action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time; w is a k Is a weighting factor in the kth action dimension determined based on the number of information sources.
In an exemplary embodiment, the first determining module is configured to, when a mode can be determined in the information dimension, perform consistency verification on each of the source basis information based on the mode; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, a second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient; when the mode cannot be determined in the information dimension, performing consistency verification on the basic information of each house source based on the median in the information dimension; wherein: for the house source basic information which does not pass the consistency verification, determining a weighting coefficient of the information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient;
the information dimension includes at least one of: area; a price; a house type; an owner telephone; the action dimension comprises at least one of: performing actual surveying and shooting; shooting in virtual reality; uploading a house book; uploading the key; filling evaluation information; fill in follow-up information.
In an exemplary embodiment, the second determining module is further configured to determine whether the reliability evaluation value of the house source basic information is greater than a predetermined threshold, and if so, determine that the house source basic information is real, otherwise, not determine that the house source basic information is real.
A computer readable storage medium, on which computer instructions are stored, which instructions, when executed by a processor, may implement the steps of the method for assessing reliability of premises information as described in any one of the above.
An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
the processor is used for reading the executable instructions from the memory and executing the instructions to realize the method for evaluating the reliability of the house source information.
A computer program product comprising computer instructions which, when executed by a processor, implement the method of assessing reliability of premises information as defined in any one of the above.
As can be seen from the foregoing technical solutions, in the embodiment of the present invention, respective house source basic information about the same address is obtained from a plurality of information sources, respectively, where the house source basic information includes at least one information dimension; determining a weighting coefficient of each house source basic information on each information dimension based on consistency check of the plurality of house source basic information on each information dimension; and determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension. Therefore, the embodiment of the invention respectively executes consistency check on the basis of respective information dimensions aiming at the house source basic information provided by each information source, and comprehensively determines the reliability evaluation value of the house source basic information on the basis of the consistency check result of each information dimension, thereby objectively evaluating the authenticity of the house source through the authenticity of each information dimension and improving the reliability of the house source information under a multi-trust scene.
In addition, the reliability evaluation value is influenced based on the time attribute of the action dimension, and the reliability of the house source information is further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is an exemplary flowchart of a method for evaluating reliability of house source information according to an embodiment of the present invention.
Fig. 2 is a diagram of an exemplary process of a house source information evaluation method according to an embodiment of the present invention.
Fig. 3 is an exemplary configuration diagram of the evaluation apparatus for reliability of house source information according to the embodiment of the present invention.
Fig. 4 is an exemplary block diagram of an electronic device in an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings.
For simplicity and clarity of description, the aspects of the invention are set forth below by describing several representative embodiments. Numerous details of the embodiments are set forth to provide an understanding of the principles of the invention. It will be apparent, however, that the invention may be practiced without these specific details. Some embodiments are not described in detail, but rather only a framework is presented, in order to avoid unnecessarily obscuring aspects of the invention. Hereinafter, "comprising" means "including but not limited to", "according to '8230;' 8230;" means "according to at least '8230;' 8230;, but not limited to only according to '8230;' 8230;". In view of the language convention for chinese, the following description, when not specifically referring to the number of a component, means that the component may be one or more than one, or may be understood as at least one.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments of the present invention, belong to the protection scope of the present invention. The terms "first," "second," "third," "fourth," and the like in the description and in the claims, and in the foregoing description and in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that, for example, embodiments of the invention described herein may be implemented in sequences other than those illustrated or described herein.
In the embodiment of the invention, the assessment problem of the authenticity of the house source information under multiple information sources is solved by using a data consistency verification method and an authenticity scoring algorithm. The authenticity of each information dimension can be judged through the house source basic information provided by a plurality of information sources, and the house source authenticity can be evaluated in a visualized mode.
Fig. 1 is an exemplary flowchart of a method for evaluating reliability of house source information according to an embodiment of the present invention.
As shown in fig. 1, the method includes:
step 101: respective premises base information is obtained from a plurality of information sources for the same address, the premises base information including at least one information dimension.
Here, the information source is a source that provides a house source. For example, the information sources may be respective brokerage brands. And aiming at the same house, each broker brand side is respectively provided with respective house source information. Alternatively, the house source information (for example, the specific commission information) of the same house (for example, the same house physical address) may be automatically identified from all the house source information provided by each information source, and the basic information related to the house in each house source information is obtained, that is, the house source basic information. The house source basis information may describe information related to the house through a plurality of information dimensions. For example, the information dimension of the house source basic information may include area, price, house type and owner telephone information, and so on.
Step 102: and determining a weighting coefficient of each house source basic information in each information dimension based on consistency check of the plurality of house source basic information in each information dimension.
In one embodiment, when a mode can be determined in the information dimension, consistency verification is carried out on each room source basic information based on the mode; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in increasing relation to the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting factor is greater than the first weighting factor. Therefore, the mode is used as the judgment factor of consistency verification, and the verification accuracy can be ensured. And for the house source basic information passing the consistency verification, the weighting coefficient is determined based on the number of the information sources and the ratio, so that the accuracy of the weighting coefficient is improved.
In one embodiment, when the mode cannot be determined in the information dimension, consistency verification is carried out on each house source basic information based on the median in the information dimension; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in increasing relation to the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting factor is greater than the first weighting factor. Therefore, the embodiment of the invention takes the median as a judgment factor for consistency verification, and can reduce the complexity of verification. And for the house source basic information passing the consistency verification, the weighting coefficient is determined based on the number of the information sources and the ratio, so that the accuracy of the weighting coefficient is improved.
Here, the second weighting factor is greater than the first weighting factor, considering that a house source that passes consistency verification is more reliable than a house source that does not pass consistency verification. Specifically, the information dimension includes at least one of: area; a price; a house type; owner's phone, etc.
Step 103: and determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension.
Here, the reliability evaluation value has an increasing relationship with the weighting coefficient in each information dimension, respectively. That is, the greater the weighting coefficient in each information dimension is, the greater the reliability evaluation value of the house source basic information is, with the remaining constraints unchanged.
In one embodiment, the method comprises: and judging whether the reliability evaluation value of the house source basic information is larger than a preset threshold value, if so, judging that the house source basic information is real, otherwise, not determining that the house source basic information is real (for example, determining that the house source basic information is false or doubtful). Therefore, by comparing the reliability evaluation value with a predetermined threshold value, the authenticity of the house source basic information can be conveniently determined, and the house source information authenticity verification under a multi-entrustment scene is facilitated.
For example, assume that for house sources with the same address, an information source provides house source basic information 1, an information source 2 provides house source basic information 2, and an information source 3 provides house source basic information 3. Based on the method for evaluating the reliability of the house source information, the reliability evaluation value of the house source basic information 1 is determined to be 65, the reliability evaluation value of the house source basic information 2 is determined to be 55, and the reliability evaluation value of the house source basic information 3 is determined to be 70. Assume that the predetermined threshold value is 60. The reliability evaluation value (namely 65) of the house source basic information 1 is larger than the threshold value (namely 60), and the house source basic information 1 is determined to be real; the reliability evaluation value (i.e. 55) of the house source basic information 2 is smaller than the threshold value (i.e. 60), and the house source basic information 2 is not determined to be real (e.g. the house source basic information 2 is determined to be false or in doubt); the reliability evaluation value (i.e., 70) of the house source basic information 3 is larger than the threshold value (i.e., 60), and it is determined that the house source basic information 3 is genuine.
In one embodiment, step 103 comprises: calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n ) (ii) a Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting factor in the nth information dimension. Here, n has a value in the range of [1,N ]]And N is the number of information dimensions in the house source basic information. Therefore, the reliability assessment value is determined by the aid of the weighting algorithm in the information dimension, and the reliability assessment value can be determined quickly.
For example, assume that the information dimensions include area, house type, and price. For each information source, the following procedure is performed to calculate a respective reliability evaluation value: calculating a product 5 × a of the reliability evaluation value (for example, preset to 5 points) of the area and the weighting coefficient a of the area; and calculating a product 15 × B of the reliability evaluation value (for example, preset to 15 points) of the house type and the weighting coefficient B of the house type, calculating a product 5 × C of the reliability evaluation value (for example, preset to 5 points) of the price and the weighting coefficient C of the price, and determining 5 × a +15 × B +5 × C as the reliability evaluation value of the house source basic information provided by the information source.
In one embodiment, step 101 further includes: respectively acquiring house source maintenance information corresponding to the house source basic information from a plurality of information sources, wherein the house source maintenance information comprises at least one action dimension; step 103 specifically comprises: calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}; wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting coefficient on the nth information dimension; h is k Reliability assessment value for k-th action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a predetermined protectionTime. Here, n has a value in the range of [1,N ]]And N is the number of information dimensions in the house source basic information. k has a value range of [1, K ]]And K is the number of action dimensions in the room source maintenance information. Therefore, the embodiment of the invention comprehensively considers two key influence factors of the information dimension and the action dimension, determines the reliability evaluation value by a weighting algorithm integrally and improves the accuracy of the reliability evaluation value. Also, in the weight calculation, the attenuation speed of the motion dimension is taken into account, and accurate calculation of the reliability evaluation value is realized.
As can be seen, in this embodiment, the reliability assessment value is further influenced based on the time attribute of each action dimension, and the reliability of the house source information is further improved.
In one embodiment, step 101 further includes: respectively acquiring house source maintenance information corresponding to the house source basic information from a plurality of information sources, wherein the house source maintenance information comprises at least one action dimension; the method further comprises the following steps: step 103 comprises: calculating reliability evaluation value R of house source basic information acquired from m-th information source m Wherein R is m ＝∑(i n ×w n )+∑(h k ×w k -h k ×w k (t k - β) × α); wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is a total of k A reliability assessment value for the kth action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time; w is a k Weighting coefficients in the kth action dimension determined based on the number of information sources, where w k With increasing relation to the number of sources, i.e. the greater the number of sources, w k The larger. Here, n has a value in the range of [1,N ]]And N is the number of information dimensions in the house source basic information. k has a value range of [1, K ]]And K is the number of action dimensions in the room source maintenance information. Therefore, the embodiment of the invention comprehensively considers two key influence factors of the information dimension and the action dimension, determines the reliability evaluation value by the weighting algorithm as a whole, and improves the reliability evaluation valueReliability evaluation value accuracy. Also, in the weight calculation, the attenuation speed of the motion dimension is taken into account, and accurate calculation of the reliability evaluation value is realized. In addition, each action dimension has a respective weighting coefficient, the influence effect of different action dimensions is corrected, and the accuracy of the reliability evaluation value is further improved.
In one embodiment, the action dimension includes at least one of: performing actual surveying and shooting; shooting in virtual reality; uploading a house book; uploading the key; filling evaluation information; fill in follow-up information, and so on.
The following describes embodiments of the present invention in more detail. First, the meanings of the mode and the median are clarified.
Mode: i.e. the value that occurs the most frequently (where the times > 1) in a set of data sequences. When the numerical value can only be taken out of one, the mode is the numerical value; when the number can be multiple, the maximum number in the number is a biased mode, and the minimum number in the number is a biased mode; if the above conditions are not met, then there is no mode. Median: in a group of data sequences, sequencing according to the size sequence, and when the number of the sequences is odd, taking the most middle numerical value as a median; when the number of the sequences is even, the larger value of the two most middle values is a larger median, and the smaller value is a smaller median.
The description will be given by taking the house source basic information including area, price, house type and owner's telephone as an example.
(1) And for the house source basic information provided by each information source, the consistency check on the area dimension comprises the following steps:
in a data sequence composed of respective areas provided by all information sources, an attempt is made to determine a mode of the data sequence (where if there are multiple modes, a more-than-most mode is taken). If the mode can be successfully determined, for each value in the data sequence, if: and if the mode is-1 and the value is less than the mode +1, the house source basic information corresponding to the value is considered to pass the consistency check in the area dimension, otherwise, the house source basic information corresponding to the value is considered not to pass the inconsistency check in the area dimension. If the mode cannot be successfully determined, taking the median in the data sequence, and if a plurality of medias exist, taking the larger median. For each value in the data sequence, if: and if the median is-1 and the numerical value is less than the median +1, the house source basic information corresponding to the numerical value is considered to pass through the consistency check in the area dimension, otherwise, the house source basic information corresponding to the numerical value is considered not to pass through the inconsistency check in the area dimension.
(2) And aiming at the house source basic information provided by each information source, the consistency check on the price dimension comprises the following steps:
in a data sequence composed of the respective prices provided by all information sources, an attempt is made to determine the mode of the data sequence (wherein if there are multiple modes, the bias mode is taken). If the mode can be successfully determined, for each value in the data sequence, if: mode (1-5%) < value < mode (1 + 5%), the house source basic information corresponding to the value is determined to pass consistency check on the price dimension, otherwise, the house source basic information corresponding to the value is determined not to pass inconsistency check on the price dimension. If there is no mode in the data sequence, taking out the median in the data sequence, if there are multiple medians, taking the minimum median, and if there are multiple medians, for each value in the data sequence, if: and if the median is 1-5% < the value is < the median (1 + 5%), the house source basic information corresponding to the value passes consistency check on the price dimension, otherwise, the house source basic information corresponding to the value does not pass inconsistency check on the price dimension.
(3) And aiming at the house source basic information provided by each information source, the consistency check on the house type dimension comprises the following steps:
in the data sequence composed of the house types provided by all information sources, the mode of the data sequence is firstly taken out, and if a plurality of modes exist, the biased mode is taken out. If the mode can be successfully obtained, for each value in the data sequence, if: and if the numerical value = the mode, the house source basic information corresponding to the numerical value is considered to pass consistency check on the house type dimension, otherwise, the house source basic information corresponding to the numerical value is considered not to pass inconsistency check on the house type dimension. If no mode exists in the data sequence, all data information is considered not to pass the inconsistency check in the house type dimension.
(4) And aiming at the house source basic information provided by each information source, the consistency check on the dimension of the main telephone comprises the following steps:
in a data sequence formed by the respective owner telephones provided by all information sources, for each numerical value, if the occurrence frequency of the numerical value is greater than 1, the house source basic information corresponding to the numerical value is considered to pass consistency check on the dimension of the main telephone, otherwise, the house source basic information corresponding to the numerical value is considered not to pass inconsistency check on the dimension of the main telephone.
Different consistency check strategies are adopted for the house source basic information of each dimension, and the information consistency of each house source can be comprehensively and accurately judged, so that the authenticity score of the house source is given to information support.
Next, a delegated plausibility evaluation score algorithm based on the consensus result is executed. And obtaining a dynamic score reflecting the trusting authenticity through a scoring algorithm according to the consistency result of the house resource entrusting information and the action information of the broker operating the house resource in the system. First, a definition of terms is given. Basic score: the score assigned to each information dimension and action dimension is based on importance. Weighting coefficient: if the information passes the consistency check, corresponding weighting coefficients are given according to the ratio of the number of the information sources passing the consistency check to all entrusted numbers (namely the total number of the information sources) recorded into the house; if the consistency check is not passed, the weighting factor is 1. The first operation time: and (4) triggering time of actions after the broker performs works of different projects on the house resources in the system. The decay rate: after brokerage work, the percentage of decay of the action score per day over time. And (3) protection period: after the broker has worked on the house, the trigger time for the action is followed by a period of time when the decay percentage is not calculated. True threshold value: and judging whether the evaluation value of the house source entrustment is larger than a real threshold value, wherein the entrustment is considered to be real if the evaluation value of the house source entrustment is larger than the real threshold value, and otherwise, the entrustment is considered to be suspicious.
Table 1 is a schematic table of the base scores for the information dimensions. Table 2 is a schematic table of base scores for the action dimension. Table 3 is an explanatory table of the weighting coefficient determination method.
| Information dimension | Base score |
| Area of | 5 |
| Price | 5 |
| House type | 15 |
| Owner telephone | 30 |
TABLE 1
| Action dimension | Base score |
| Shoot and survey | 10 |
| Shooting VR | 20 |
| Upload house book | 20 |
| Uploading key | 5 |
| Filling in the evaluation | 5 |
| Fill-in follow-up | 5 |
TABLE 2
TABLE 3
As can be seen from table 3, the weighting coefficients have a correlation with the following two factors:
factor 1: the number of information sources;
factor 2: the ratio of the number of the house source basic information and the number of the information sources passing the consistency verification.
Wherein: when the number of information sources is fixed (e.g., all 2-3), the weighting factor is incrementally related to factor 2 (i.e., the ratio), such as: the ratio is more than or equal to 65 percent, and the weighting coefficient is 1.2; the ratio is <65% and the weighting factor is 1. Moreover, when the ratio is fixed (e.g., 100% for each), the weighting factor is increased by a factor of 1 (i.e., the number of information sources), e.g., the number of information sources is 4-5, and the weighting factor is 1.5; the number of information sources is 6-8 and the weighting coefficient is 1.6.
Suppose that the reliability evaluation value R of the house source basic information of the arbitrary mth information source is calculated m The formula of (1) is as follows:
R m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}。
wherein: i.e. i n Is the degree of coverage in the nth information dimensionA reliability evaluation value; w is a n Is a weighting coefficient on the nth information dimension; h is k Reliability assessment value for k-th action dimension; t is t k Time to the present for the first action of the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time.
Visible, evaluation value R m The first part is the product of the base fraction of each information dimension and the weighting coefficient of the information dimension, and the second part is the product of the base fraction of each action dimension and the decay rate outside the protection period. The above formula needs to satisfy (t) n -beta) is equal to or more than 0. If not, then the term (t) is calculated n - β) takes the value 0 and defines the minimum value of each calculation term of the second part as 0. Examples are: the protection time beta is 120 days, the attenuation speed is 0.5 percent, and the real threshold value is 65 percent.
Fig. 2 is a diagram of an exemplary process of the house source information evaluation method according to the embodiment of the present invention. As shown in fig. 2, the process includes:
step 201: and entering a house source entrustment containing house source basic information, and executing the step 203 and the subsequent steps.
Step 202: the room source proxy containing the room source basic information is modified, and step 203 and the following steps are executed.
Step 203: all premises source commissions of the premises reading the same geographic location.
Step 204: and reading the house source basic information of all house source entrusts.
Step 205: and carrying out consistency verification on the house source basic information on each information dimension.
Step 206: the broker activity triggers an action. That is, the broker works on the house resources and records the corresponding maintenance actions in the system.
Step 207: all actions of all house sources are read.
Step 208: based on the consistency verification result in step 205 and the time attribute of the action read in step 207, a reliability evaluation value for each source commission is determined.
Step 209: and judging the authenticity of the house source entrustment according to the evaluation value of the house source entrustment. For example, when the reliability evaluation value of the premise entrustment is greater than the real threshold value, the premise entrustment is determined to be reliable, otherwise, the premise entrustment is determined to be unreliable.
Fig. 3 is an exemplary configuration diagram of the evaluation apparatus for reliability of house source information according to the embodiment of the present invention.
In fig. 3, the apparatus 300 for evaluating reliability of house source information includes:
an obtaining module 301, configured to obtain, from a plurality of information sources, respective house source basic information about the same address, where the house source basic information includes at least one information dimension; a first determining module 302, configured to determine a weighting coefficient of each source basic information in each information dimension based on consistency check of multiple source basic information in each information dimension; a second determining module 303, configured to determine a reliability evaluation value of each source basis information based on a weighting coefficient of each source basis information in each information dimension.
In an exemplary embodiment, the second determining module 303 is configured to calculate a reliability evaluation value R of the house source basic information obtained from the mth information source m Wherein R is m ＝∑(i n ×w n ) (ii) a Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting factor in the nth information dimension.
In an exemplary embodiment, the obtaining module 301 is further configured to obtain, from a plurality of information sources, house source maintenance information corresponding to the respective house source basic information, where the house source maintenance information includes at least one action dimension; a second determining module 303 for calculating the reliability evaluation value R of the house source basic information obtained from the m-th information source m Wherein R is m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}; wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is a total of k Reliability assessment value for k-th action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; when beta is a predetermined guardAnd (3) removing the solvent.
In an exemplary embodiment, the obtaining module 301 is further configured to obtain, from a plurality of information sources, house source maintenance information corresponding to respective house source basic information, where the house source maintenance information includes at least one action dimension; a second determining module 303 for calculating the reliability evaluation value R of the house source basic information obtained from the m-th information source m Wherein R is m ＝∑(i n ×w n )+∑(h k ×w k -h k ×w k (t k - β) x α); wherein i n Is reliability evaluation value on nth information dimension; w is a n Weighting coefficients in the nth information dimension; h is k Reliability assessment value for k-th action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time; w is a k Is a weighting factor in the kth action dimension determined based on the number of information sources.
In an exemplary embodiment, the first determining module 302 is configured to perform consistency verification on each of the source base information based on the mode when the mode can be determined in the information dimension; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient; when the mode cannot be determined in the information dimension, performing consistency verification on the basic information of each house source based on the median in the information dimension; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient; the information dimension includes at least one of: area; a price; a house type; owner's phone, etc.; the action dimension includes at least one of: performing actual surveying and shooting; shooting in virtual reality; uploading a house book; uploading the key; filling evaluation information; fill in follow-up information, and so on.
In an exemplary embodiment, the second determining module 303 is configured to determine whether the reliability evaluation value of the source infrastructure information is greater than a predetermined threshold, and if so, determine that the source infrastructure information is real, otherwise, not determine that the source infrastructure information is real.
In summary, in the embodiment of the present invention, the respective house source basic information about the same address is obtained from a plurality of information sources, respectively, and the house source basic information includes at least one information dimension; determining a weighting coefficient of each house source basic information on each information dimension based on consistency check of the plurality of house source basic information on each information dimension; and determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension. Therefore, the embodiment of the invention respectively executes consistency check on the house source basic information provided by each information source based on respective information dimension, and comprehensively determines the reliability evaluation value of the house source basic information based on the consistency check result of each information dimension, thereby objectively evaluating the authenticity of the house source through the authenticity of each information dimension, and improving the reliability of the house source information under a multi-entrusting scene.
Moreover, the reliability evaluation value is influenced based on the time attribute of the action dimension, and the reliability of the house source information is further improved.
Embodiments of the present invention also provide a computer-readable storage medium storing instructions that, when executed by a processor, may perform steps in a runtime environment simulation method of an applet as above. In practical applications, the computer readable medium may be included in the apparatus/device/system described in the above embodiments, or may exist alone without being assembled into the apparatus/device/system. The computer-readable storage medium carries one or more programs, and when the one or more programs are executed, the execution environment simulation method of the applet described in the above embodiments can be implemented. According to embodiments of the present disclosure, the computer-readable storage medium may be a non-volatile computer-readable storage medium, which may include, for example but is not limited to: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing, without limiting the scope of the present invention. In the embodiments of the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
As shown in fig. 4, the embodiment of the present invention further provides an electronic device, in which a device implementing the method according to the embodiment of the present invention may be integrated. As shown in fig. 4, an exemplary block diagram of an electronic device according to an embodiment of the present invention is shown.
Specifically, the method comprises the following steps: the electronic device may include a processor 401 of one or more processing cores, memory 402 of one or more computer-readable storage media, and a computer program stored on the memory and executable on the processor. The above-described method of evaluating the reliability of the house source information can be implemented when the program of the memory 402 is executed.
In practical applications, the electronic device may further include a power supply 403, an input unit 404, an output unit 405, and the like. Those skilled in the art will appreciate that the configuration of the electronic device shown in fig. 4 is not intended to be limiting of the electronic device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. Wherein: the processor 401 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, performs various functions of the server and processes data by operating or executing software programs and/or modules stored in the memory 402 and calling data stored in the memory 402, thereby integrally monitoring the electronic device. The memory 402 may be used to store software programs and modules, i.e., the computer-readable storage media described above. The processor 401 executes various functional applications and data processing by running software programs and modules stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to the use of the server, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 402 may also include a memory controller to provide the processor 401 access to the memory 402.
The electronic device further includes a power supply 403 for supplying power to each component, and the power supply 403 may be logically connected to the processor 401 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The power supply 403 may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like. The electronic device may further include an input unit 404, and the input unit 404 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. The electronic device may further include an output unit 405, and the output unit 405 may be used to display information input by or provided to a user and various graphical user interfaces, which may be made up of graphics, text, icons, video, and any combination thereof.
Embodiments of the present invention also provide a computer program product comprising computer instructions which, when executed by a processor, implement the method according to any of the embodiments described above.
The flowchart and block diagrams in the figures of the present invention illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The principles and embodiments of the present invention have been described herein using specific embodiments, which are presented only to aid in understanding the method and its core ideas and are not intended to limit the present invention. It will be appreciated by those skilled in the art that changes may be made in this embodiment and its applications without departing from the principles, spirit and scope of the invention, and it is intended that all such changes, substitutions, modifications, and equivalents as fall within the true spirit and scope of the invention be interpreted as including the meaning and range of equivalents of the claims.
Claims (9)
1. A method for evaluating reliability of house source information is characterized by comprising the following steps:
acquiring respective house source basic information about the same address from a plurality of information sources respectively, wherein the house source basic information comprises at least one information dimension;
determining a weighting coefficient of each house source basic information in each information dimension based on consistency check of a plurality of house source basic information in each information dimension; the determining a weighting coefficient of each house source basic information in each information dimension based on the consistency check of the plurality of house source basic information in each information dimension comprises: when a mode can be determined in the information dimension, performing consistency verification on each room source basic information based on the mode; when the mode can not be determined in the information dimension, performing consistency verification on the basic information of each room source based on the median in the information dimension; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient;
determining a reliability evaluation value of each house source basic information based on a weighting coefficient of each house source basic information on each information dimension;
and judging whether the reliability evaluation value of the house source basic information is larger than a preset threshold value, if so, determining that the house source basic information is real, otherwise, not determining that the house source basic information is real.
2. The method for evaluating reliability of house source information according to claim 1, wherein the determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information in each information dimension comprises:
calculating reliability evaluation value R of house source basic information acquired from mth information source m Wherein R is m ＝∑(i n ×w n )；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting factor in the nth information dimension.
3. The method for evaluating reliability of house source information according to claim 1, further comprising:
respectively acquiring house source maintenance information corresponding to the house source basic information from the plurality of information sources, wherein the house source maintenance information comprises at least one action dimension;
the determining the reliability assessment value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension comprises:
calculating reliability evaluation value R of house source basic information acquired from m-th information source m Wherein R is m ＝∑(i n ×w n )+∑{h k ×[1-(t k -β)×α]}；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is the weighting coefficient on the nth information dimension; h is a total of k Reliability assessment value for k-th action dimension; t is t k Time to the present for the first action of the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time.
4. The method for evaluating reliability of house source information according to claim 1, further comprising:
respectively acquiring house source maintenance information corresponding to the house source basic information from the plurality of information sources, wherein the house source maintenance information comprises at least one action dimension;
the determining the reliability assessment value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension comprises the following steps:
calculating the house source basis obtained from the mth information sourceReliability evaluation value R of information m Wherein R is m ＝∑(i n ×w n )+∑(h k ×w k -h k ×w k (t k -β)×α)；
Wherein i n Is reliability evaluation value on nth information dimension; w is a n Is a weighting coefficient on the nth information dimension; h is k Reliability assessment value for k-th action dimension; t is t k The time to the current of the first action for the kth action dimension; alpha is a preset attenuation speed; beta is a preset protection time; w is a k Is a weighting factor in the kth action dimension determined based on the number of information sources.
5. The method for evaluating reliability of information on house resources according to claim 3 or 4,
the information dimension includes at least one of: area; a price; a house type; an owner telephone; the action dimension includes at least one of: performing actual surveying and shooting; shooting in virtual reality; uploading a house book; uploading the key; filling evaluation information; fill in follow-up information.
6. An assessment device for reliability of house source information, comprising:
the system comprises an acquisition module, a storage module and a display module, wherein the acquisition module is used for respectively acquiring respective house source basic information about the same address from a plurality of information sources, and the house source basic information comprises at least one information dimension;
the first determining module is used for determining a weighting coefficient of each house source basic information in each information dimension based on consistency check of the plurality of house source basic information in each information dimension; the determining a weighting coefficient of each house source basic information in each information dimension based on the consistency check of the plurality of house source basic information in each information dimension comprises: when a mode can be determined in the information dimension, performing consistency verification on each room source basic information based on the mode; wherein: for the house source basic information which does not pass consistency verification, determining a weighting coefficient of an information dimension as a first weighting coefficient; for the house source basic information which passes the consistency verification, determining the weighting coefficient of the information dimension as a second weighting coefficient based on the ratio of the number of the house source basic information which passes the consistency verification to the number of the information sources and the number of the information sources; wherein the second weighting factor is in an increasing relationship with the ratio when the number of information sources is fixed; when the ratio is fixed, the second weighting coefficient is in an increasing relation with the number of the information sources; the second weighting coefficient is greater than the first weighting coefficient;
and the second determination module is used for determining the reliability evaluation value of each house source basic information based on the weighting coefficient of each house source basic information on each information dimension.
7. A computer-readable storage medium, on which computer instructions are stored, wherein said instructions, when executed by a processor, implement the steps of the method for assessing reliability of origin information according to any one of claims 1 to 5.
8. An electronic device, comprising:
a processor;
a memory for storing the processor-executable instructions;
the processor is used for reading the executable instructions from the memory and executing the instructions to realize the method for evaluating the reliability of the house source information according to any one of claims 1 to 5.
9. A computer program product comprising computer instructions which, when executed by a processor, carry out the method of assessing reliability of origin information according to any one of claims 1 to 5.
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| CN111914645A (en) * | 2020-06-30 | 2020-11-10 | 五八有限公司 | Method and device for identifying false information, electronic equipment and storage medium |
| CN111798251A (en) * | 2020-07-03 | 2020-10-20 | 北京字节跳动网络技术有限公司 | Verification method and device of house source data and electronic equipment |
| CN113344660A (en) * | 2021-05-28 | 2021-09-03 | 深圳市前海房极客网络科技有限公司 | House source information processing method and device, electronic equipment and storage medium |
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| CN111798269A (en) * | 2020-06-11 | 2020-10-20 | 曹巍 | Real estate value determination method and system for real estate separation and layered value system |
| CN113409024A (en) * | 2021-07-02 | 2021-09-17 | 深圳市云房网络科技有限公司 | Method, system and computer storage medium for automatic verifying and auditing house source |
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