CN110288389A - A kind of determination method and system of cell source of houses average price - Google Patents

A kind of determination method and system of cell source of houses average price Download PDF

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CN110288389A
CN110288389A CN201910521836.9A CN201910521836A CN110288389A CN 110288389 A CN110288389 A CN 110288389A CN 201910521836 A CN201910521836 A CN 201910521836A CN 110288389 A CN110288389 A CN 110288389A
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houses
source
listed
history
conclusion
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傅发佐
宋鑫
高旭宁
蔡白银
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Seashell Housing Beijing Technology Co Ltd
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Beike Technology Co Ltd
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    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q30/00—Commerce
    • G06Q30/02—Marketing; Price estimation or determination; Fundraising
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    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/16—Real estate

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Abstract

The embodiment of the present invention provides a kind of determination method and system of cell source of houses average price.Method includes: the conclusion of the business source of houses set obtained cell to be evaluated within a preset period of time, listed source of houses set and the listed source of houses set of history；Time attenuation function model based on Newton's law of cooling determines the source of houses average price of the cell to be evaluated according to conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history in the preset time period.Method and system provided in an embodiment of the present invention, by obtaining conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history of cell to be evaluated within a preset period of time, effective solution transaction data rare problem, time attenuation function model by Newton's law of cooling is that the conclusion of the business source of houses and the listed source of houses of history distribute weight, solves the problems, such as transaction data time-varying, so as to objectively portray real-estate market situation progress complicated and changeable and accurately describe, determine comprehensively and accurate cell source of houses average price.

Description

A kind of determination method and system of cell source of houses average price
Technical field
The present embodiments relate to real estate Internet technical field more particularly to a kind of determination sides of cell source of houses average price Method and system.
Background technique
In real estate industry, cell source of houses average price is to measure the powerful of real-estate market situation, especially professional Real estate intermediary need to refer to cell source of houses average price to instruct the operation behaviour of oneself.Existing cell source of houses average price determination side Method is only simply to the average value in the source of houses counting statistics meaning of conclusion of the business, since house deal belongs to the friendship of large low frequency Easily, there are sparse, rare and time-varying characteristics for transaction data, this kind of method can not be to real-estate market situation complicated and changeable Objectively portray and accurately describe, can not determine comprehensively and accurate cell source of houses average price.
Summary of the invention
For the technical problems in the prior art, the embodiment of the present invention provides a kind of determination side of cell source of houses average price Method and system.
In a first aspect, the embodiment of the present invention provides a kind of determination method of cell source of houses average price, comprising:
Step 1, conclusion of the business source of houses set, listed source of houses set and the history of cell to be evaluated within a preset period of time is obtained to hang Board source of houses set；
Step 2, the time attenuation function model based on Newton's law of cooling, according to the conclusion of the business room in the preset time period Source set, listed source of houses set and the listed source of houses set of history, determine the source of houses average price of the cell to be evaluated.
Further, the step 1, comprising:
Obtain the cell to be evaluated original conclusion of the business source of houses set within a preset period of time, original listed source of houses set and Original history is listed source of houses set；
For the original conclusion of the business source of houses set, the unit price for obtaining the listed unit price and the unit price that strikes a bargain of each conclusion of the business source of houses is poor Value, and the monovalent difference is formed into the conclusion of the business source of houses set less than all conclusion of the business sources of houses of the first preset threshold；
For the original listed source of houses set, the effective band for obtaining each listed source of houses sees that number and last time are readjusted prices The time difference of time and current time, and effective band is seen that number is greater than the second preset threshold and the time difference is small In all listed sources of houses of third predetermined threshold value, the listed source of houses set is formed；
Source of houses set listed for the original history, the effective band for obtaining the listed source of houses of each history see number and are listed Duration, and effective band is seen that number is greater than the 4th preset threshold and the listed duration is greater than all of the 5th preset threshold History is listed the source of houses, forms the history and is listed source of houses set.
Further, the step 2, comprising:
Determine the listed source of houses of the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set and the history The weight of set；
Determine the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, each listed room in the listed source of houses set The score value of the listed source of houses of each history in the score value in source and the listed source of houses set of the history；
Time attenuation function model based on the Newton's law of cooling determines weight and the institute of each conclusion of the business source of houses State the weight of the listed source of houses of each history；
According to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, the listed source of houses collection of the history The score value of each conclusion of the business source of houses in the weight of conjunction, the conclusion of the business source of houses set, each listed source of houses in the listed source of houses set Score value, the history be listed each history in source of houses set be listed the score value of the source of houses, each conclusion of the business source of houses weight with And the weight of the listed source of houses of each history, determine the source of houses average price of the cell to be evaluated.
Further, in the determination conclusion of the business source of houses set score value of each conclusion of the business source of houses calculation formula are as follows:
Determine the calculation formula of the score value of each listed source of houses in the listed source of houses set are as follows:
Determine the calculation formula of the score value of the listed source of houses of each history in the listed source of houses set of the history are as follows:
Wherein, trans_scoreiFor the score value of i-th set of conclusion of the business source of houses, list_score(k)The listed source of houses is covered for kth Score value, his_list_scorejThe score value of the listed source of houses of history, trans_price are covered for jthiFor i-th set of conclusion of the business source of houses at Presentate valence, city_trans_avg_price are current city conclusion of the business average price, list_price(k)The listed source of houses is covered for kth Listed unit price, city_list_avg_price are the listed average price in current city, his_list_pricejHistory is covered for jth to hang The listed unit price of the history of the board source of houses, wherein i, j are positive integer.
Further, the time attenuation function model based on the Newton's law of cooling, determines each conclusion of the business The formula of the weight of the source of houses are as follows:
Determine the formula of the weight of the listed source of houses of each history are as follows:
Wherein, wiFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history, w are covered for jth1、w2Initially to weigh Weight, α1、α2For attenuation coefficient, t1The closing time for the source of houses that is listed for the history and the difference of current time, t2For the history The ineffective time of the listed source of houses and the difference of current time, wherein i, j are positive integer.
Further, it is described according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, described go through History be listed the weight of source of houses set, the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, in the listed source of houses set The score value of the listed source of houses of each history, each conclusion of the business in the listed source of houses set of the score value of each listed source of houses, the history The weight of the weight of the source of houses and the listed source of houses of each history, determines the formula of the source of houses average price of the cell to be evaluated Are as follows:
Resblock_show_price=resblock_score × city_trans_avg_price；
Wherein,
Wherein, resblock_show_price is the source of houses average price of the cell to be evaluated, and resblock_score is institute The score value of cell to be evaluated is stated, city_trans_avg_price is current city conclusion of the business average price, and T is the conclusion of the business source of houses collection The weight of conjunction, L are the weight of the listed source of houses set and the weight of the listed source of houses set of the history, and m is the conclusion of the business room The tricks of the conclusion of the business source of houses in the set of source, n are the tricks of the listed source of houses in the listed source of houses set, and p is the listed room of the history The tricks of the listed source of houses of history, w in the set of sourceiFor the weight of i-th set of conclusion of the business source of houses, wjThe power of the listed source of houses of history is covered for jth Weight.
Second aspect, the embodiment of the present invention provide a kind of determination system of cell source of houses average price, comprising:
Source of houses data acquisition module, for obtaining cell to be evaluated conclusion of the business source of houses set within a preset period of time, listed Source of houses set and the listed source of houses set of history；
Average price determining module, for the time attenuation function model based on Newton's law of cooling, according to the preset time Conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history in section, determine that the source of houses of the cell to be evaluated is equal Valence.
Further, the source of houses data acquisition module, comprising:
Original source of houses set acquiring unit, for obtaining the original conclusion of the business room of cell to be evaluated within a preset period of time Source set, original listed source of houses set and the listed source of houses set of original history；
Conclusion of the business source of houses set acquiring unit, for obtaining each conclusion of the business source of houses for the original conclusion of the business source of houses set The monovalent difference of listed unit price and the unit price that strikes a bargain, and all conclusion of the business sources of houses by the monovalent difference less than the first preset threshold, Form the conclusion of the business source of houses set；
Listed source of houses set acquiring unit, for obtaining each listed source of houses for the original listed source of houses set Effective band sees that number and last time are readjusted prices the time difference of time and current time, and effective band is seen that number is greater than the Two preset thresholds and the time difference are less than all listed sources of houses of third predetermined threshold value, form the listed source of houses set；
History is listed source of houses set acquiring unit, for being listed source of houses set for the original history, obtains each goes through Be listed effective band of the source of houses of history sees number and listed duration, and effective band is seen that number is greater than the 4th preset threshold and described Listed duration is greater than the listed source of houses of all history of the 5th preset threshold, forms the listed source of houses set of the history.
Further, the average price determining module, comprising:
First weight determining unit, for determining the weight of the conclusion of the business source of houses set, the power of the listed source of houses set The weight of weight and the listed source of houses set of the history；
Score value determination unit, for determining the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, the listed room Source set in each listed source of houses score value and the history be listed source of houses set in each history be listed the source of houses score value；
Second weight determining unit, for the time attenuation function model based on the Newton's law of cooling, determine described in The weight of the weight of each conclusion of the business source of houses and the listed source of houses of each history；
Average price determination unit, for according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, institute State history be listed the weight of source of houses set, in the conclusion of the business source of houses set each conclusion of the business source of houses score value, the listed source of houses collection The score value of each listed source of houses in conjunction, the history each history in source of houses set that is listed are listed the score value, described each of the source of houses The weight of the weight of the conclusion of the business source of houses and the listed source of houses of each history, determines the source of houses average price of the cell to be evaluated.
Further, in the determination conclusion of the business source of houses set score value of each conclusion of the business source of houses calculation formula are as follows:
Determine the calculation formula of the score value of each listed source of houses in the listed source of houses set are as follows:
Determine the calculation formula of the score value of the listed source of houses of each history in the listed source of houses set of the history are as follows:
Wherein, trans_scoreiFor the score value of i-th set of conclusion of the business source of houses, list_score(k)The listed source of houses is covered for kth Score value, his_list_scorejThe score value of the listed source of houses of history, trans_price are covered for jthiFor i-th set of conclusion of the business source of houses at Presentate valence, city_trans_avg_price are current city conclusion of the business average price, list_price(k)The listed source of houses is covered for kth Listed unit price, city_list_avg_price are the listed average price in current city, his_list_pricejHistory is covered for jth to hang The listed unit price of the history of the board source of houses, wherein i, j are positive integer.
Further, the time attenuation function model based on the Newton's law of cooling, determines each conclusion of the business The formula of the weight of the source of houses are as follows:
Determine the formula of the weight of the listed source of houses of each history are as follows:
Wherein, wiFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history, w are covered for jth1、w2Initially to weigh Weight, α1、α2For attenuation coefficient, t1The closing time for the source of houses that is listed for the history and the difference of current time, t2For the history The ineffective time of the listed source of houses and the difference of current time, wherein i, j are positive integer.
Further, it is described according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, described go through History be listed the weight of source of houses set, the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, in the listed source of houses set The score value of the listed source of houses of each history, each conclusion of the business in the listed source of houses set of the score value of each listed source of houses, the history The weight of the weight of the source of houses and the listed source of houses of each history, determines the formula of the source of houses average price of the cell to be evaluated Are as follows:
Resblock_show_price=resblock_score × city_trans_avg_price；
Wherein,
Wherein, resblock_show_price is the source of houses average price of the cell to be evaluated, and resblock_score is institute The score value of cell to be evaluated is stated, city_trans_avg_price is current city conclusion of the business average price, and T is the conclusion of the business source of houses collection The weight of conjunction, L are the weight of the listed source of houses set and the weight of the listed source of houses set of the history, and m is the conclusion of the business room The tricks of the conclusion of the business source of houses in the set of source, n are the tricks of the listed source of houses in the listed source of houses set, and p is the listed room of the history The tricks of the listed source of houses of history, w in the set of sourceiFor the weight of i-th set of conclusion of the business source of houses, wjThe power of the listed source of houses of history is covered for jth Weight.
The third aspect, the embodiment of the present invention provides a kind of electronic equipment, including memory, processor and is stored in memory Computer program that is upper and can running on a processor, is realized when the processor executes described program as first aspect provides Method the step of.
Fourth aspect, the embodiment of the present invention provide a kind of non-transient computer readable storage medium, are stored thereon with calculating Machine program is realized as provided by first aspect when the computer program is executed by processor the step of method.
The determination method and system of a kind of cell source of houses average price provided in an embodiment of the present invention, by obtaining cell to be evaluated Conclusion of the business source of houses set within a preset period of time, listed source of houses set and history is listed source of houses set, effective solution transaction The rare problem of data, the time attenuation function model by Newton's law of cooling are the conclusion of the business source of houses and the listed source of houses distribution of history Weight solves the problems, such as transaction data time-varying, so as to objectively be carved to real-estate market situation complicated and changeable It draws and accurately description, determining accurate cell source of houses average price comprehensively.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of determination method flow diagram of cell source of houses average price provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the determination system of cell source of houses average price provided in an embodiment of the present invention；
Fig. 3 is the entity structure schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Fig. 1 is a kind of determination method flow diagram of cell source of houses average price provided in an embodiment of the present invention, as shown in Figure 1, should Method includes:
Step 1, conclusion of the business source of houses set, listed source of houses set and the history of cell to be evaluated within a preset period of time is obtained to hang Board source of houses set.
Specifically, existing cell source of houses average price determines method only simply in the source of houses counting statistics meaning of conclusion of the business Average value, and the embodiment of the present invention not only obtains the conclusion of the business source of houses, also obtain the listed source of houses and history be listed the source of houses, at least through These three source of houses data determine cell source of houses average price.
The conclusion of the business source of houses, the listed source of houses and the listed source of houses of history are illustrated below:
The conclusion of the business source of houses: both parties have signed the source of houses of conclusion of the business contract, have specific closing time and the unit price that strikes a bargain, use Variable trans_priceiIndicate contract note valence, wherein i indicates the closing time of the source of houses；
The listed source of houses: the true listed source of houses currently normally sold on line has specific listed monovalent information, uses variable list_price(k)Indicate the current listed unit price of the kth set source of houses；
History is listed the source of houses: leading to the set source of houses quilt due to having some listed sources of houses not go on transaction etc. owner Undercarriage, but these sources of houses generated some effective bands and see information, so this part room due to being listed after a period of time Source can still characterize the marketing situation before undercarriage, therefore this part source of houses is still available, and be called the listed room of history Source.The listed source of houses of history includes the listed unit price of the set source of houses undercarriage (invalid) time and history, with variable his_list_ pricejIndicate the listed unit price of history, wherein j indicates the ineffective time of the listed source of houses of history.It should be noted that history is hung The ineffective time of the board source of houses refers to the time of the set source of houses undercarriage.
Conclusion of the business source of houses set is the set for including multiple conclusion of the business sources of houses, and the source of houses set that is listed includes multiple listed sources of houses Set, the listed source of houses set of history are the set for including the listed source of houses of multiple history.
Step 2, the time attenuation function model based on Newton's law of cooling, according to the conclusion of the business room in the preset time period Source set, listed source of houses set and the listed source of houses set of history, determine the source of houses average price of the cell to be evaluated.
Newton's law of cooling is typically all on the model of decaying related to time, such as the variation of time is used Attenuation process etc. of the family to the fancy grade of certain commodity.In embodiments of the present invention, due to the conclusion of the business source of houses and the listed room of history There are the characteristics of time-varying in source, when determining cell source of houses average price, need for the conclusion of the business source of houses of Recent Activity and going through for recent undercarriage The listed source of houses of history distributes higher weight and therefore time attenuation function model is determined based on Newton's law of cooling herein, by this The listed source of houses of the history of the conclusion of the business source of houses and different times undercarriage that model trades to different times distributes weight automatically, to solve The problem of transaction data time-varying.
Method provided in an embodiment of the present invention, by obtaining the conclusion of the business source of houses collection of cell to be evaluated within a preset period of time Close, listed source of houses set and history is listed source of houses set, the effective solution rare problem of transaction data passes through Newtonian Cooling The time attenuation function model of law is that the conclusion of the business source of houses and the listed source of houses of history distribute weight, solves asking for transaction data time-varying Topic, it is determining comprehensively quasi- so as to objectively portray and accurately describe to real-estate market situation complicated and changeable True cell source of houses average price.
On the basis of the various embodiments described above, the step 1, comprising:
Obtain the cell to be evaluated original conclusion of the business source of houses set within a preset period of time, original listed source of houses set and Original history is listed source of houses set；
For the original conclusion of the business source of houses set, the unit price for obtaining the listed unit price and the unit price that strikes a bargain of each conclusion of the business source of houses is poor Value, and the monovalent difference is formed into the conclusion of the business source of houses set less than all conclusion of the business sources of houses of the first preset threshold；
For the original listed source of houses set, the effective band for obtaining each listed source of houses sees that number and last time are readjusted prices The time difference of time and current time, and effective band is seen that number is greater than the second preset threshold and the time difference is small In all listed sources of houses of third predetermined threshold value, the listed source of houses set is formed；
Source of houses set listed for the original history, the effective band for obtaining the listed source of houses of each history see number and are listed Duration, and effective band is seen that number is greater than the 4th preset threshold and the listed duration is greater than all of the 5th preset threshold History is listed the source of houses, forms the history and is listed source of houses set.
It is understood that the conclusion of the business source of houses set in above-described embodiment is after cleaning to original conclusion of the business source of houses set It obtains, the source of houses set that is listed is obtained after cleaning to original listed source of houses set, and the listed source of houses set of history is pair What the listed source of houses set of original history obtained after being cleaned.For example, without any constraint condition, wait evaluate Cell A includes that 100 sets of conclusion of the business sources of houses, 80 sets of listed sources of houses and 60 sets history are listed the sources of houses in total, then, by this 100 sets conclusions of the business The collection of source of houses composition is collectively referred to as conclusion of the business source of houses set, and the collection of this 80 sets listed source of houses compositions is collectively referred to as listed source of houses set, will The collection of the listed source of houses composition of this 60 sets of history is collectively referred to as the listed source of houses set of history.It should be noted that in the embodiment of the present invention Number only for illustration, the present invention is not especially limited the tricks for the source of houses for specifically including in source of houses set.
For original conclusion of the business source of houses set, to the listed unit price and the different excessive conclusion of the business source of houses of contract note price differential in the set It is filtered, because the situation occur is likely to be to belong to relatives' transaction, that is, seller can be with the valence far below market average price Lattice are sold to oneself relatives, and such conclusion of the business source of houses cannot be used for accurate objectively calculating cell source of houses average price.It should be noted that Here the monovalent difference for obtaining the conclusion of the business unit price of each conclusion of the business source of houses in original conclusion of the business source of houses set, monovalent difference is greater than or is waited It is filtered out in all conclusion of the business sources of houses of the first preset threshold, all conclusion of the business rooms by remaining difference less than the first preset threshold Source forms conclusion of the business source of houses set.The first preset threshold herein is configured according to concrete scene, and the embodiment of the present invention takes it Value is not especially limited.
For original listed source of houses set, such as the effective band of the listed source of houses can be limited and seen greater than 3 times, the last time price adjustment Time gap current time must not exceed 1 year cleaning rule, that is, effective band be seen that number is greater than 3 times, the last time price adjustment Time gap current time is no more than 1 year all listed source of houses, forms listed source of houses set.It should be noted that of the invention Number in embodiment only for illustration and is not especially limited.
Source of houses set listed for original history, such as effective band can be limited and see that number must not be gone through simultaneously less than 3 times The listed duration of history must not be less than 3 days cleaning rules, and effective band is seen number greater than 3 times and listed duration is greater than 3 days institutes There is history to be listed the source of houses, composition history is listed source of houses set.It should be noted that the number in the embodiment of the present invention is only used for showing Example property illustrates and is not especially limited.
Method provided in an embodiment of the present invention, by original source of houses set carry out cleaning filtered out it is various abnormal The source of houses, so that the source of houses calculated eventually for cell average price is all that effectively, ensure that the cell average price visitor being finally calculated It sees, is true and accurate.
On the basis of the various embodiments described above, the step 2, comprising:
Determine the listed source of houses of the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set and the history The weight of set；
Determine the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, each listed room in the listed source of houses set The score value of the listed source of houses of each history in the score value in source and the listed source of houses set of the history；
Time attenuation function model based on the Newton's law of cooling determines the weight of each conclusion of the business source of houses and each goes through The weight of the listed source of houses of history；
According to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, the listed source of houses collection of the history The score value of each conclusion of the business source of houses in the weight of conjunction, the conclusion of the business source of houses set, each listed source of houses in the listed source of houses set Score value, the history each history in source of houses set that is listed is listed the score value of the source of houses, the weight of each conclusion of the business source of houses and every The weight of the listed source of houses of one history, determines the source of houses average price of the cell to be evaluated.
On the basis of the various embodiments described above, the embodiment of the present invention is to each conclusion of the business source of houses in determining conclusion of the business source of houses set The score value of each listed source of houses and the history each history in source of houses set that is listed are listed the source of houses in score value, listed source of houses set Score value is further described:
Determine the calculation formula of the score value of each conclusion of the business source of houses in conclusion of the business source of houses set are as follows:
Determine the calculation formula of the score value of each listed source of houses in listed source of houses set are as follows:
Determine the calculation formula of the score value of the listed source of houses of each history in the listed source of houses set of history are as follows:
Wherein, trans_scoreiFor the score value of i-th set of conclusion of the business source of houses, list_score(k)The listed source of houses is covered for kth Score value, his_list_scorejThe score value of the listed source of houses of history, trans_price are covered for jthiFor i-th set of conclusion of the business source of houses at Presentate valence, city_trans_avg_price are current city conclusion of the business average price, list_price(k)The listed source of houses is covered for kth Listed unit price, city_list_avg_price are the listed average price in current city, his_list_pricejHistory is covered for jth to hang The listed unit price of the history of the board source of houses, wherein i, j are positive integer.
Specifically, first carry out source of houses score value definition, it is assumed that ranking of a set of source of houses in city be it is stable, be based on This is it is assumed that the embodiment of the present invention measures ranking of a set of source of houses in city using the concept of score value, and the definition of score value is such as Under:
Source of houses score value=source of houses unit price/city average unit price
Above formula defines the calculation formula of source of houses score value, next defines current city conclusion of the business average price and current city Listed average price, it should be noted that herein currently refer to the same day, current city conclusion of the business average price is that the city on the same day is struck a bargain Average price, the listed average price in current city are the listed average price in city on the same day.
The calculating of current city conclusion of the business average price (the city conclusion of the business average price on the same day):
For example, the city conclusion of the business average price of today is the today of putting down toward the conclusion of the business unit price for being pushed forward 30 days entire city conclusion of the business sources of houses Mean value, the city average price of yesterday is then average value of the yesterday toward the conclusion of the business unit price for being pushed forward 30 days entire city conclusion of the business sources of houses, with this Analogize, daily city conclusion of the business average price can be calculated, with variable city_trans_avg_priceiIt is indicated, wherein i table Show the date for calculating city conclusion of the business average price.It should be noted that the number in the embodiment of the present invention is only for illustration simultaneously It is not especially limited.Particularly, current city conclusion of the business average price is indicated using city_trans_avg_price here.
The calculating of the listed average price in current city (the listed average price in the city on the same day):
The average value that average price is all listed source of houses unit prices in entire city today for example, the city of today is listed, yesterday The listed average price in city is then the average value of all listed source of houses unit prices in entire city yesterday, and so on, it can calculate daily City be listed average price, with variable city_list_avg_pricejIt is indicated, wherein j indicates to calculate the listed average price in city Date.Particularly, the listed average price in current city is indicated using city_list_avg_price here.
On the basis of the various embodiments described above, the embodiment of the present invention is to the time attenuation function mould based on Newton's law of cooling Type determines the weight of the weight of each conclusion of the business source of houses and the listed source of houses of each history, is further described:
Determine the formula of the weight of each conclusion of the business source of houses are as follows:
Determine the formula of the weight of the listed source of houses of each history are as follows:
Wherein, wiFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history, w are covered for jth1、w2Initially to weigh Weight, α1、α2For attenuation coefficient, t1The closing time for the source of houses that is listed for history and the difference of current time, t2It is listed the source of houses for history Ineffective time and current time difference.
Specifically, different times are portrayed using the time attenuation function model based on Newton's law of cooling herein to strike a bargain The conclusion of the business source of houses and the invalid history of different times be listed the source of houses to the significance level for calculating current cell source of houses average price, change Sentence is talked about, and the listed source of houses of the source of houses and history that history strikes a bargain is to the significance level of calculating current area source of houses average price with the time Constantly decaying, can be expressed as following two formula with formula respectively:
Wherein, w1、w2For initial weight, constant α1、α2(α1> 0, α2> 0) it is attenuation coefficient, preferably 0.016, t1It is the difference of source of houses closing time and current time, unit is day, t2It is the difference of source of houses ineffective time and current time, it is single Position is day.It should be noted that constant α1、α2It may be other numerical value, the being given for example only property of number in the embodiment of the present invention Illustrate and is not especially limited.
On the basis of the various embodiments described above, the embodiment of the present invention in above-described embodiment according to conclusion of the business source of houses set Weight, the weight of listed source of houses set, history be listed the weight of source of houses set, in conclusion of the business source of houses set each conclusion of the business source of houses point In value, the listed source of houses set score value of each listed source of houses, history be listed each history in source of houses set be listed the source of houses score value, The weight of the listed source of houses of the weight and each history of each conclusion of the business source of houses, determines the source of houses average price of the cell to be evaluated, into Row further illustrates:
Determine the formula of the source of houses average price resblock_show_price of the cell to be evaluated are as follows:
Resblock_show_price=resblock_score × city_trans_avg_price；
Wherein,
Wherein, resblock_score is the score value of cell to be evaluated, and city_trans_avg_price is current city City's conclusion of the business average price, T are the weight of conclusion of the business source of houses set, and L is the weight of listed source of houses set and the power of the listed source of houses set of history Weight, m are the tricks of the conclusion of the business source of houses in conclusion of the business source of houses set, and n is the tricks of the listed source of houses in listed source of houses set, and p is history extension The tricks of the listed source of houses of history, w in board source of houses setiFor the weight of the conclusion of the business source of houses, wjIt is listed the weight of the source of houses for history.
Fig. 2 is a kind of structural schematic diagram of the determination system of cell source of houses average price provided in an embodiment of the present invention, such as Fig. 2 institute Show, which includes:
Source of houses data acquisition module, for obtaining cell to be evaluated conclusion of the business source of houses set within a preset period of time, listed Source of houses set and the listed source of houses set of history；
Average price determining module, for the time attenuation function model based on Newton's law of cooling, according to the preset time Conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history in section, determine that the source of houses of the cell to be evaluated is equal Valence.
System provided in an embodiment of the present invention, specifically executes above-mentioned each method embodiment process, please specifically be detailed in above-mentioned each The content of embodiment of the method, details are not described herein again.System provided in an embodiment of the present invention, by obtaining cell to be evaluated default Conclusion of the business source of houses set in period, listed source of houses set and history is listed source of houses set, and effective solution transaction data is dilute Scarce problem, the time attenuation function model by Newton's law of cooling are that the conclusion of the business source of houses and the listed source of houses of history distribute weight, Solves the problems, such as transaction data time-varying, so as to objectively be portrayed real-estate market situation complicated and changeable and quasi- True description determines comprehensively and accurate cell source of houses average price.
On the basis of the various embodiments described above, the embodiment of the present invention to the source of houses data acquisition module in above-described embodiment into Row further explanation, the source of houses data acquisition module, comprising:
Original source of houses set acquiring unit, for obtaining the original conclusion of the business room of cell to be evaluated within a preset period of time Source set, original listed source of houses set and the listed source of houses set of original history；
Conclusion of the business source of houses set acquiring unit, for obtaining each conclusion of the business source of houses for the original conclusion of the business source of houses set The monovalent difference of listed unit price and the unit price that strikes a bargain, and all conclusion of the business sources of houses by the monovalent difference less than the first preset threshold, Form the conclusion of the business source of houses set；
Listed source of houses set acquiring unit, for obtaining each listed source of houses for the original listed source of houses set Effective band sees that number and last time are readjusted prices the time difference of time and current time, and effective band is seen that number is greater than the Two preset thresholds and the time difference are less than all listed sources of houses of third predetermined threshold value, form the listed source of houses set；
History is listed source of houses set acquiring unit, for being listed source of houses set for the original history, obtains each goes through Be listed effective band of the source of houses of history sees number and listed duration, and effective band is seen that number is greater than the 4th preset threshold and described Listed duration is greater than the listed source of houses of all history of the 5th preset threshold, forms the listed source of houses set of the history.
On the basis of the various embodiments described above, the embodiment of the present invention to the average price determining module in above-described embodiment carry out into One step explanation, the average price determining module, comprising:
First weight determining unit, for determining the weight of the conclusion of the business source of houses set, the power of the listed source of houses set The weight of weight and the listed source of houses set of the history；
Score value determination unit, for determining the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, the listed room Source set in each listed source of houses score value and the history be listed source of houses set in each history be listed the source of houses score value；
Second weight determining unit, for the time attenuation function model based on the Newton's law of cooling, determine described in The weight of the weight of each conclusion of the business source of houses and the listed source of houses of each history；
Average price determination unit, for according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, institute State history be listed the weight of source of houses set, in the conclusion of the business source of houses set each conclusion of the business source of houses score value, the listed source of houses collection The score value of each listed source of houses in conjunction, the history each history in source of houses set that is listed are listed the score value, described each of the source of houses The weight of the weight of the conclusion of the business source of houses and the listed source of houses of each history, determines the source of houses average price of the cell to be evaluated.
On the basis of the various embodiments described above, the score value of each conclusion of the business source of houses in the determination conclusion of the business source of houses set Calculation formula are as follows:
Determine the calculation formula of the score value of each listed source of houses in the listed source of houses set are as follows:
Determine the calculation formula of the score value of the listed source of houses of each history in the listed source of houses set of the history are as follows:
Wherein, trans_scoreiFor the score value of i-th set of conclusion of the business source of houses, list_score(k)The listed source of houses is covered for kth Score value, his_list_scorejThe score value of the listed source of houses of history, trans_price are covered for jthiFor i-th set of conclusion of the business source of houses at Presentate valence, city_trans_avg_price are current city conclusion of the business average price, list_price(k)The listed source of houses is covered for kth Listed unit price, city_list_avg_price are the listed average price in current city, his_list_pricejHistory is covered for jth to hang The listed unit price of the history of the board source of houses, wherein i, j are positive integer.
On the basis of the various embodiments described above, the time attenuation function model based on the Newton's law of cooling, really The formula of the weight of fixed each conclusion of the business source of houses are as follows:
Determine the formula of the weight of the listed source of houses of each history are as follows:
Wherein, wiFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history, w are covered for jth1、w2Initially to weigh Weight, α1、α2For attenuation coefficient, t1The closing time for the source of houses that is listed for the history and the difference of current time, t2For the history The ineffective time of the listed source of houses and the difference of current time, wherein i, j are positive integer.
Further, it is described according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, described go through History be listed the weight of source of houses set, the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, in the listed source of houses set The score value of the listed source of houses of each history, each conclusion of the business in the listed source of houses set of the score value of each listed source of houses, the history The weight of the weight of the source of houses and the listed source of houses of each history, determines the formula of the source of houses average price of the cell to be evaluated Are as follows:
Resblock_show_price=resblock_score × city_trans_avg_price；
Wherein,
Wherein, resblock_show_price is the source of houses average price of the cell to be evaluated, and resblock_score is institute The score value of cell to be evaluated is stated, city_trans_avg_price is current city conclusion of the business average price, and T is the conclusion of the business source of houses collection The weight of conjunction, L are the weight of the listed source of houses set and the weight of the listed source of houses set of the history, and m is the conclusion of the business room The tricks of the conclusion of the business source of houses in the set of source, n are the tricks of the listed source of houses in the listed source of houses set, and p is the listed room of the history The tricks of the listed source of houses of history, w in the set of sourceiFor the weight of i-th set of conclusion of the business source of houses, wjThe power of the listed source of houses of history is covered for jth Weight.
Fig. 3 is the entity structure schematic diagram of a kind of electronic equipment provided in an embodiment of the present invention, as shown in figure 3, the electronics Equipment may include: processor (processor) 301, communication interface (Communications Interface) 302, storage Device (memory) 303 and communication bus 304, wherein processor 301, communication interface 302, memory 303 pass through communication bus 304 complete mutual communication.Processor 301, which can call, to be stored on memory 303 and can run on processor 301 Computer program, the method to execute the various embodiments described above offer, for example, obtain cell to be evaluated within a preset period of time Conclusion of the business source of houses set, listed source of houses set and history be listed source of houses set；Time attenuation function based on Newton's law of cooling Model determines institute according to conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history in the preset time period State the source of houses average price of cell to be evaluated.
In addition, the logical order in above-mentioned memory 303 can be realized by way of SFU software functional unit and conduct Independent product when selling or using, can store in a computer readable storage medium.Based on this understanding, originally The technical solution of the inventive embodiments substantially part of the part that contributes to existing technology or the technical solution in other words It can be embodied in the form of software products, which is stored in a storage medium, including several fingers It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes the present invention respectively The all or part of the steps of a embodiment the method.And storage medium above-mentioned includes: USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic or disk Etc. the various media that can store program code.
The embodiment of the present invention also provides a kind of non-transient computer readable storage medium, is stored thereon with computer program, The computer program is implemented to carry out the transmission method of the various embodiments described above offer when being executed by processor, for example, obtain Conclusion of the business source of houses set, listed source of houses set and the listed source of houses set of history of cell to be evaluated within a preset period of time；Based on ox The time attenuation function model for the law of cooling of pausing, according to conclusion of the business source of houses set, the listed source of houses set in the preset time period It is listed source of houses set with history, determines the source of houses average price of the cell to be evaluated.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member It is physically separated with being or may not be, component shown as a unit may or may not be physics list Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs In some or all of the modules realize the purpose of the embodiment of the present invention.Those of ordinary skill in the art are not paying wound In the case where the labour for the property made, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features； And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and Range.

Claims (10)

1. a kind of determination method of cell source of houses average price characterized by comprising
Step 1, conclusion of the business source of houses set, listed source of houses set and the listed room of history of cell to be evaluated within a preset period of time are obtained Source set；
Step 2, the time attenuation function model based on Newton's law of cooling, according to the conclusion of the business source of houses collection in the preset time period Conjunction, listed source of houses set and the listed source of houses set of history, determine the source of houses average price of the cell to be evaluated.
2. the method according to claim 1, wherein the step 1, comprising:
Obtain the cell to be evaluated original conclusion of the business source of houses set within a preset period of time, original listed source of houses set and original History is listed source of houses set；
For the original conclusion of the business source of houses set, the monovalent difference of the listed unit price and the unit price that strikes a bargain of each conclusion of the business source of houses is obtained, And the monovalent difference is formed into the conclusion of the business source of houses set less than all conclusion of the business sources of houses of the first preset threshold；
For the original listed source of houses set, the effective band for obtaining each listed source of houses sees number and last time price adjustment time With the time difference of current time, and effective band is seen that number is greater than the second preset threshold and the time difference less than the All listed sources of houses of three preset thresholds form the listed source of houses set；
For the original history be listed source of houses set, obtain each history be listed the source of houses effective band see number and it is listed when It is long, and effective band is seen that number is greater than the 4th preset threshold and the listed duration is greater than the 5th all of preset threshold and goes through History is listed the source of houses, forms the history and is listed source of houses set.
3. the method according to claim 1, wherein the step 2, comprising:
Determine the listed source of houses set of the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set and the history Weight；
Determine the score value of each conclusion of the business source of houses in the conclusion of the business source of houses set, each listed source of houses in the listed source of houses set The score value of the listed source of houses of each history in score value and the listed source of houses set of the history；
Time attenuation function model based on the Newton's law of cooling determines the weight of each conclusion of the business source of houses and described every The weight of the listed source of houses of one history；
It is listed source of houses set according to the weight of the conclusion of the business source of houses set, the weight of the listed source of houses set, the history The score value of each conclusion of the business source of houses in weight, the conclusion of the business source of houses set, in the listed source of houses set each listed source of houses point The score value of the listed source of houses of each history, the weight of each conclusion of the business source of houses and institute in the listed source of houses set of value, the history The weight for stating the listed source of houses of each history determines the source of houses average price of the cell to be evaluated.
4. according to the method described in claim 3, it is characterized in that, each conclusion of the business room in the determination conclusion of the business source of houses set The calculation formula of the score value in source are as follows:
Determine the calculation formula of the score value of each listed source of houses in the listed source of houses set are as follows:
Determine the calculation formula of the score value of the listed source of houses of each history in the listed source of houses set of the history are as follows:
Wherein, trans_scoreiFor the score value of i-th set of conclusion of the business source of houses, list_score(k)The score value of the listed source of houses is covered for kth, his_list_scorejThe score value of the listed source of houses of history, trans_price are covered for jthiFor the contract note of i-th set of conclusion of the business source of houses Valence, city_trans_avg_price are current city conclusion of the business average price, list_price(k)The listed of the listed source of houses is covered for kth Unit price, city_list_avg_price are the listed average price in current city, his_list_pricejThe listed room of history is covered for jth The listed unit price of the history in source, wherein i, j are positive integer.
5. according to the method described in claim 4, the letter it is characterized in that, the time based on the Newton's law of cooling decays Exponential model determines the formula of the weight of each conclusion of the business source of houses are as follows:
Determine the formula of the weight of the listed source of houses of each history are as follows:
Wherein, wiFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history, w are covered for jth1、w2For initial weight, α1、α2For attenuation coefficient, t1The closing time for the source of houses that is listed for the history and the difference of current time, t2For history extension The ineffective time of the board source of houses and the difference of current time, wherein i, j are positive integer.
6. according to the method described in claim 5, it is characterized in that, the weight according to the conclusion of the business source of houses set, described Weight, the history of listed source of houses set are listed the weight of source of houses set, each conclusion of the business source of houses in the conclusion of the business source of houses set Score value, the score value of each listed source of houses, the history each history in source of houses set that is listed are hung in the listed source of houses set The score value of the board source of houses, the weight of each conclusion of the business source of houses and each history are listed the weight of the source of houses, determine it is described to Evaluate the formula of the source of houses average price of cell are as follows:
Resblock_show_price=resblock_score × city_trans_avg_price；
Wherein,
Wherein, resblock_show_price is the source of houses average price of the cell to be evaluated, resblock_score be it is described to Evaluate the score value of cell, city_trans_avg_price is current city conclusion of the business average price, and T is the conclusion of the business source of houses set Weight, L are the weight of the listed source of houses set and the weight of the listed source of houses set of the history, and m is the conclusion of the business source of houses collection The tricks of the conclusion of the business source of houses in conjunction, n are the tricks of the listed source of houses in the listed source of houses set, and p is the listed source of houses collection of the history The tricks of the listed source of houses of history, w in conjunctioniFor the weight of i-th set of conclusion of the business source of houses, wjThe weight of the listed source of houses of history is covered for jth.
7. a kind of determination system of cell source of houses average price characterized by comprising
Source of houses data acquisition module, for obtaining conclusion of the business source of houses set, the listed source of houses of cell to be evaluated within a preset period of time Set and the listed source of houses set of history；
Average price determining module, for the time attenuation function model based on Newton's law of cooling, according in the preset time period Conclusion of the business source of houses set, listed source of houses set and history be listed source of houses set, determine the source of houses average price of the cell to be evaluated.
8. system according to claim 7, which is characterized in that the source of houses data acquisition module, comprising:
Original source of houses set acquiring unit, for obtaining the original conclusion of the business source of houses collection of cell to be evaluated within a preset period of time The listed source of houses set of conjunction, original listed source of houses set and original history；
Conclusion of the business source of houses set acquiring unit, for obtaining the listed of each conclusion of the business source of houses for the original conclusion of the business source of houses set The monovalent difference of unit price and the unit price that strikes a bargain, and all conclusion of the business sources of houses by the unit price difference less than the first preset threshold, composition The conclusion of the business source of houses set；
Listed source of houses set acquiring unit, for obtaining the effective of each listed source of houses for the original listed source of houses set Band sees the time difference of number and last time price adjustment time and current time, and effective band is seen that number is greater than second in advance If threshold value and the time difference are less than all listed sources of houses of third predetermined threshold value, the listed source of houses set is formed；
History is listed source of houses set acquiring unit, for being listed source of houses set for the original history, obtains each history and hangs Effective band of the board source of houses sees number and listed duration, and effective band is seen that number is greater than the 4th preset threshold and described listed Duration is greater than the listed source of houses of all history of the 5th preset threshold, forms the listed source of houses set of the history.
9. a kind of electronic equipment including memory, processor and stores the calculating that can be run on a memory and on a processor Machine program, which is characterized in that the processor is realized when executing described program such as any one of claim 1 to 6 the method Step.
10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer It is realized when program is executed by processor such as the step of any one of claim 1 to 6 the method.
CN201910521836.9A 2019-06-17 2019-06-17 A kind of determination method and system of cell source of houses average price Withdrawn CN110288389A (en)

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