CN107341165B - Method and device for carrying out prompt display at search box - Google Patents
Method and device for carrying out prompt display at search box Download PDFInfo
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- CN107341165B CN107341165B CN201610530497.7A CN201610530497A CN107341165B CN 107341165 B CN107341165 B CN 107341165B CN 201610530497 A CN201610530497 A CN 201610530497A CN 107341165 B CN107341165 B CN 107341165B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9535—Search customisation based on user profiles and personalisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
- G06F3/0233—Character input methods
- G06F3/0236—Character input methods using selection techniques to select from displayed items
Abstract
The invention provides a method and a device for prompting and displaying a search box. The method for prompting and displaying at the search box comprises the following steps: a receiving step (S1) of receiving a keyword input by a user at a search box; a retrieval step (S2) for retrieving one or more candidate prompt keywords with prefix matching by a prefix index according to the user' S geographical position information and the input keyword; and a display step (S3) of displaying the one or more candidate prompt keywords retrieved in the search engine search prompt item group at the search box.
Description
Technical Field
The invention relates to the technical field of search, in particular to a method and a device for prompting and displaying a search box.
Background
In the field of search technology, there is a technology of user search suggestion (search suggestion) in a search engine, for example, a search suggestion example of the prior art is shown in fig. 1. As shown in fig. 1, after "wang" is input in the search box, at this time, the user has not completely input a search term, and can make a corresponding search prompt according to the input, and the user can click a prompt to enter a search result page of the prompt term. Therefore, the method is very beneficial to saving the typing time of the user, prejudging the input of the user, improving the user experience, and gradually, the search prompt becomes a necessary function of any search system at present.
In the prior art, most search suggestions (search suggestions) of the existing search systems are derived from search logs, user click behavior logs and encyclopedic data, and the logs are processed to clean up dirty data to obtain candidate prompt keywords. The recall aspect is recalled by prefix matching by building a prefix index through a trie tree (dictionary tree) structure. The prefix index is a trie tree index constructed by keys.
However, the following disadvantages exist in the prior art.
(1) The existing search prompting keyword sources are keywords extracted based on search logs and logs clicked by users, and for a commodity search system, some keywords which are not related to commodities in a commodity library can be prompted, so that the results cannot be searched after the users click the prompting keywords, and the user experience is poor;
(2) when the system is in cold start, a large number of search logs do not exist, and a user clicks the logs to mine keywords, so that a search prompt keyword library does not exist at the initial stage;
(3) most of the existing search prompts are only served by a PC (personal computer) terminal, and the number of mobile clients is small, and the mobile clients do not have geographic position information based on users during prompting.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a method and an apparatus for displaying a search box prompt, which are capable of searching for a keyword prompt based on a geographic location of a user in a product search system in the field of O2O, and solve a disadvantage that a related search prompt based on geographic location information is not provided in a conventional product search prompt. In addition, the problem that some prompt search keywords which cannot be retrieved may be displayed by existing search prompts is solved by enabling the prompt keyword library to be derived from the commodity library and based on data mining of commodity names of the commodity library.
In order to solve the above problem, one aspect of the present invention relates to a method for presenting a search box, including: a receiving step of receiving a keyword input by a user at a search box; a retrieval step, namely retrieving one or more candidate prompt keywords matched with prefixes through prefix indexes according to the geographical position information of the user and the input keywords; and a display step of displaying the one or more candidate prompt keywords retrieved in a search engine search prompt item group at a search box, wherein in the retrieval step, one or more candidate prompt keywords whose prefixes match are retrieved by a prefix index corresponding to a store near a location represented by the geographical location information.
Further, according to the method of the present invention, preferably, the displaying step includes: a duplication elimination step, namely only keeping the highest statistical frequency for the same searched candidate prompt keywords; and a sorting step, wherein the candidate prompt keywords are sorted in a descending order according to the frequency of the searched candidate prompt keywords.
Further, according to the method of the present invention, it is preferable that: and an index construction step of constructing, for each store, a prefix index corresponding to the store on the basis of the commodity information of commodities included in the store.
Further, according to the method of the present invention, preferably, in the index construction step, a candidate prompt keyword and a ranking frequency for a product are obtained by performing word segmentation, bi-gram, and mutual information entropy on product information, and a prefix index corresponding to a store is constructed by a dictionary tree index according to the candidate prompt keywords of all the products of the store.
Further, according to the method of the present invention, preferably, the commodity information is a commodity name.
Further, according to the method of the present invention, it is preferable that the search result page is formed based on any one of the one or more candidate prompt keywords selected by the user.
Further, according to the method of the present invention, preferably, the geographical location information includes a real-time location point of the user and a receiving address selected by the user.
Another aspect of the present invention relates to an apparatus for presenting a search box, the apparatus including: a receiving unit receiving a keyword input by a user at a search box; the retrieval unit is used for retrieving one or more candidate prompt keywords matched with prefixes through prefix indexes according to the geographical position information of the user and the input keywords; and a display unit that displays the retrieved one or more candidate prompt keywords in a search engine search prompt item group at a search box, the retrieval unit retrieving one or more candidate prompt keywords whose prefixes match, by a prefix index corresponding to a store near a location represented by the geographical location information.
According to the invention, the keyword prompt can be searched based on the geographic position of the user, and the defect that the related search prompt based on the geographic position information is not provided for the current commodity search prompt is overcome. In addition, the problem that some prompt search keywords which cannot be retrieved may be displayed by existing search prompts is solved by enabling the prompt keyword library to be derived from the commodity library and based on data mining of commodity names of the commodity library.
Drawings
The above objects, advantages and features of the present invention will become more apparent by referring to the following detailed description of preferred embodiments taken in conjunction with the accompanying drawings, in which:
FIG. 1 illustrates a prior art search prompt example.
FIG. 2 illustrates a search prompt module of the present invention.
Fig. 3 shows an example of a store-product mapping relationship.
FIG. 4 shows an example of a trie tree.
FIG. 5 is a flow chart illustrating a method for displaying a hint at a search box according to the present invention.
Fig. 6 is a block diagram showing an apparatus for displaying a prompt at a search box according to the present invention.
Detailed Description
Specific embodiments of the present disclosure will be described in detail below, and it should be noted that the embodiments described herein are merely illustrative and are not intended to limit the present disclosure. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be apparent to one of ordinary skill in the art that: these specific details need not be employed to practice the present disclosure. In other instances, well-known circuits, materials, or methods have not been described in detail in order to avoid obscuring the present disclosure.
In addition, it is to be understood that the specific embodiments described herein are merely illustrative of the related invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the related invention are shown in the drawings.
Furthermore, throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present disclosure. Thus, the appearances of the phrases "in one embodiment," "in an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale. It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected or connected to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected to" another element, there are no intervening elements present. Like reference numerals refer to like elements. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The present application will be described in further detail with reference to the following drawings and examples.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The invention aims at a commodity search system in the field of O2O (Online To Offline/Online To Offline), is applied To a mobile client, and can prompt store commodity search keywords near related geographic positions according To search terms (incomplete or complete) input by a user based on the geographic position information of the user when the user searches commodities. The geographical location information includes two cases: the location point of the user in real time and the receiving address selected by the user. Of course, the geographic location information may also include other circumstances.
FIG. 2 illustrates a search prompt module of the present invention. As shown in fig. 2, in the commodity search system of the present invention, the search prompt is mainly divided into two modules, namely, an indexing module and a retrieval module.
And for the index module, performing data analysis work according to commodity information of the commodity library and the geographical position information of the store corresponding to the commodity, and finally establishing a prefix index for the retrieval module to use. All stores correspond to a prefix index which is a global index, and stores near the geographic position of the user are a subset of stores, so that the indexes corresponding to the stores in the subset are only used in the retrieval process.
For the retrieval module: and recalling keyword prompts matched with the prefixes through the prefix indexes according to the geographic position of the user and the input search words. The geographic position of the user is the actual geographic position data of the user positioned by the mobile terminal or the receiving address data input by the user in a self-defined way.
The following describes the index module in detail.
The commodity library source includes information such as a commodity ID, a commodity name, and a commodity-corresponding store ID. Fig. 3 shows an example of a store-product mapping relationship.
Corresponding prefix indexes are respectively constructed according to different stores, and the indexes of all stores form a global index, so that corresponding prompt keywords can be recalled as long as the stores are known.
1) Step of data analysis
The candidate prompt keywords under each store and the ranking frequency are obtained mainly according to word segmentation, bi-gram and mutual information entropy processing of the trade names of each store. Where entropy is the probability of some event occurring. Mutual Information (MI), for short, is the probability of two events occurring simultaneously.
The following is a detailed description.
And the operation is performed for each store in sequence. Store N has T items, tokenizes, and cuts out term (the word cut out after the tokenization) for each item, counts the order of each term, and counts the total number of statistics total _ unigram for all the individual terms. Wherein tf: the Term frequency is the first order. The first order frequency is the statistical frequency of a single Term, i.e., the word frequency.
In addition, the second-order co-occurrence frequency, two term, t1 and t2, which appear continuously under a certain trade name, needs to be calculated, the second-order co-occurrence frequency is denoted as tf (t1 and t2), and the total _ bigram of all the second-order co-occurrence frequencies is also counted. Wherein, the second-order co-occurrence frequency is the co-occurrence statistical frequency of two continuous term calculated on the basis of the bi-gram.
For example, the trade name "master kang braised beef in soy sauce noodle", is divided into three terms, "master kang", "braised beef in soy sauce", "beef noodle", the first order frequency tf (master kang), tf (braised beef in soy sauce), tf (beef noodle) is added with 1 respectively, and the total frequency total _ unigram of a single term is added with 3; the trade name generates two second-order co-occurrence frequencies, the frequency of tf (Kangshifu, braised beef in soy sauce) and the frequency of tf (braised beef in soy sauce) are respectively added with 1, and the total _ bigram of the second-order co-occurrence frequencies is added with 2.
The first order frequency of all the term is reserved and used as a prompt keyword of the store N, and the word of the bi-gram (the combination of two term, mainly refers to two term which are continuous after word segmentation) needs to be filtered through mutual information entropy, so that the reservation that the mutual information entropy is larger than a threshold value thr ═ 0 is met, and the word is also used as the prompt keyword of the store.
The mutual information entropy calculation of bi-grams is given by MI (X, Y) as follows, for both X and Y term:
MI(X，Y)＝log(P(X，Y)/P(X)P(Y))
p (X, Y) represents a second-order co-occurrence frequency, and P (X, Y) is tf (X, Y)/total _ bigram
P (x), p (y) denote first order frequencies, p (x) ═ tf (x)/total _ bigram
And reserving the first-order and second-order co-occurrence as the prompt keyword of the store N. And the first order frequency and the second order co-occurrence frequency corresponding to the keywords represent the number of corresponding commodities in the commodity library of the keywords and serve as sequencing basis when the commodities are displayed later.
2) Prefix index structure
This step is to index the candidate prompt keywords into a dictionary (trie) tree, and can input prefixes of the keywords to recall all candidates with consistent prefixes.
FIG. 4 shows an example of a trie tree. As shown in fig. 4, for store N, the remaining hint keywords construct a trie tree, as shown in the above diagram: when retrieving 'music', if the user positions and shows the store, the user can prompt the store to remind 'music', 'music potato chips' and 'music potato chips' which are the same as the prefix of 'music', namely, the node of 'music' is delayed to recall all prompt keywords under the node.
The search module will be described in detail below.
The module recalls all candidate prompt keywords with consistent prefixes input by the user through the prefix index. In the prior art, the only difference is that the geographic position information of the user is introduced, a store list near the local position is recommended according to the geographic position information, each store in the list has a corresponding prefix index, and the prompt keyword matched with the prefix of the search word input by the user is recalled through the prefix index.
And performing duplicate removal and sorting before prompting the keyword display, wherein the duplicate removal only keeps the highest statistical frequency for the same keyword, and sorting is performed according to the descending order of the frequency of all the recalled keywords.
According to the technical scheme of the invention, the following beneficial technical effects can be brought:
(1) during cold starting, search logs and user clicking behaviors do not need to be accumulated, and only the commodity names of the existing commodity library need to be used;
(2) keywords not included in the commodity names in the commodity library are not prompted;
(3) making a sorting basis according to the number of the commodities related to the prompt keyword;
(4) the prompted keywords are more reasonable and meaningful because of the bi-gram and the mutual information entropy, and the words with high relevance are converged and used as prompts.
Although the method of the second order co-occurrence frequency is exemplified in the above embodiment, the third order co-occurrence frequency may be utilized. For example, after word segmentation, 3 terms are provided for the Master kang braised beef in soy sauce, the Master kang "" braised beef in soy sauce and the beef noodle, at the moment, the third-order co-occurrence is tf (Master kang, braised beef in soy sauce), and the tri-gram "Master kang braised beef noodle in soy sauce" can also be used as a reserved prompt keyword.
In addition, the second-order co-occurrence must be continuous term in the above embodiment, but it can also be extended to 2 term with one term in between, and also do the second-order interval co-occurrence, for example, "master kang braised beef in soy sauce", after word segmentation there are 3 term, "master kang", "braised beef in soy sauce" and "beef in soy sauce", and the second-order interval co-occurrence bi-gram "master kang beef in soy sauce" can also be used as the retention hint keyword through mutual information entropy calculation.
FIG. 5 is a flow chart illustrating a method for displaying a hint at a search box according to the present invention.
As shown in fig. 5, the method for displaying a hint at a search box according to an embodiment of the present invention includes a receiving step S1, a retrieving step S2, and a displaying step S3.
First, in the above-described receiving step S1, a keyword input by the user at the search box is received.
Next, in the above-mentioned retrieving step S2, one or more candidate keyword candidates that match in prefix are retrieved by a prefix index based on the user' S geographical location information and the input keyword.
Then, in the above-described display step S3, the one or more candidate prompt keywords retrieved are displayed in the search engine search prompt item group at the search box.
In the search step S2, one or more candidate presentation keywords whose prefixes match are searched for by a prefix index corresponding to a store near the location indicated by the geographical location information.
Therefore, according to the technical scheme of the invention, the keyword prompt can be searched based on the geographic position of the user, and the defect that the existing commodity search prompt does not carry out related search prompt based on the geographic position information is overcome. In addition, the problem that some prompt search keywords which cannot be retrieved may be displayed by existing search prompts is solved by enabling the prompt keyword library to be derived from the commodity library and based on data mining of commodity names of the commodity library.
The above description is made in detail by taking an embodiment as an example of a technical solution of the method for displaying a prompt in a search box according to the present invention. Although the above embodiments are described by way of software flow, it is obvious to those skilled in the art that some or all of these technical solutions can be implemented by hardware, software, or a combination of hardware and software.
Hereinafter, a configuration of a device for presenting and displaying a search box according to the above-described embodiment of the present invention will be described as a modified example with reference to fig. 6.
(modification example)
Fig. 6 is a block diagram of an apparatus 100 for displaying a prompt at a search box according to the present invention.
As shown in fig. 6, an apparatus 100 for displaying a prompt at a search box according to an embodiment of the present invention includes a receiving unit 101, a retrieving unit 102, and a display unit 103.
The receiving unit 101 receives a keyword input by a user at a search box.
The search unit 102 searches for one or more candidate prompt keywords with prefixes matching through a prefix index according to the geographic location information of the user and the input keyword.
The display unit 103 displays the retrieved one or more candidate keyword in the search engine search prompt item group at the search box.
Further, the search means 102 searches for one or more candidate presentation keywords having prefixes matching, by using a prefix index corresponding to a store near the location indicated by the geographical location information.
Therefore, according to the technical scheme of the invention, the keyword prompt can be searched based on the geographic position of the user, and the defect that the existing commodity search prompt does not carry out related search prompt based on the geographic position information is overcome. In addition, the problem that some prompt search keywords which cannot be retrieved may be displayed by existing search prompts is solved by enabling the prompt keyword library to be derived from the commodity library and based on data mining of commodity names of the commodity library.
The foregoing detailed description has set forth numerous embodiments of the method and apparatus for hint display at a search box using block diagrams, flowcharts, and/or examples. Insofar as such block diagrams, flowcharts, and/or examples contain one or more functions and/or operations, it will be understood by those within the art that each function and/or operation within such block diagrams, flowcharts, or examples can be implemented, individually and/or collectively, by a wide range of hardware, software, firmware, or virtually any combination thereof. In one embodiment, portions of the subject matter described in embodiments of the present disclosure may be implemented by Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), Digital Signal Processors (DSPs), or other integrated formats. However, those skilled in the art will recognize that some aspects of the embodiments disclosed herein, in whole or in part, can be equivalently implemented in integrated circuits, as one or more computer programs running on one or more computers (e.g., as one or more programs running on one or more computer systems), as one or more programs running on one or more processors (e.g., as one or more programs running on one or more microprocessors), as firmware, or as virtually any combination thereof, and that designing the circuitry and/or writing the code for the software and or firmware would be well within the skill of one of skill in the art in light of this disclosure. In addition, those skilled in the art will appreciate that the mechanisms of the subject matter described herein are capable of being distributed as a program product in a variety of forms, and that an illustrative embodiment of the subject matter described herein applies regardless of the particular type of signal bearing media used to actually carry out the distribution. Examples of signal bearing media include, but are not limited to: recordable type media such as floppy disks, hard disk drives, Compact Disks (CDs), Digital Versatile Disks (DVDs), digital tape, computer memory, etc.; and a transmission type medium such as a digital and/or an analog communication medium (e.g., a fiber optic cable, a waveguide, a wired communications link, a wireless communication link, etc.).
Although the present invention has been shown in connection with the preferred embodiments of the present invention, those skilled in the art will appreciate that various modifications, substitutions and changes can be made thereto without departing from the spirit and scope of the present invention. Accordingly, the present invention should not be limited by the above-described embodiments, but should be defined by the appended claims and their equivalents.
Claims (7)
1. A method for prompting display at a search box is characterized by comprising the following steps:
a receiving step of receiving a keyword input by a user at a search box;
a retrieval step, namely retrieving one or more candidate prompt keywords matched with prefixes through prefix indexes according to the geographical position information of the user and the input keywords; and
a display step of displaying the one or more candidate prompt keywords retrieved in a search engine search prompt item group at the search box,
in the retrieving step, one or more candidate keyword prompts matched with prefixes are retrieved through a prefix index corresponding to stores near the position represented by the geographic position information,
the method further comprises the following steps:
and an index construction step, namely performing data analysis on each store according to the commodity information of the commodity library and the geographical position information of the store corresponding to the commodity, and constructing a prefix index corresponding to the store.
2. The method of claim 1,
the displaying step includes:
a duplicate removal step, namely only keeping the highest statistical frequency for the same searched candidate prompt keywords; and
and a sorting step, namely sorting in a descending order according to the frequency of all the searched candidate prompt keywords.
3. The method of claim 1,
in the index construction step, word segmentation is carried out on commodity information, bi-gram segmentation is carried out on the words to obtain word groups of the bi-gram, mutual information entropy calculation is carried out on the word groups of the bi-gram to obtain candidate prompt keywords and sequencing frequency aiming at the commodity, and prefix indexes corresponding to stores are constructed through dictionary tree indexes according to the candidate prompt keywords of all commodities of the stores.
4. The method of claim 1,
the commodity information is a commodity name.
5. The method of claim 1,
and forming a search result page based on any one of the one or more candidate prompt keywords selected by the user.
6. The method of claim 1,
the geographical location information comprises the real-time location point of the user and the receiving address selected by the user.
7. An apparatus for performing hint display at a search box, comprising:
a receiving unit receiving a keyword input by a user at a search box;
the retrieval unit is used for retrieving one or more candidate prompt keywords matched with prefixes through prefix indexes according to the geographic position information of the user and the input keywords; and
a display unit which displays the retrieved one or more candidate prompt keywords in a search engine search prompt item group at a search box,
the search unit searches for one or more candidate keyword candidates matching a prefix through a prefix index corresponding to a store near the location represented by the geographical location information,
the device further comprises:
and the index construction unit is used for carrying out data analysis on each store according to the commodity information of the commodity library and the geographical position information of the store corresponding to the commodity, and constructing a prefix index corresponding to the store.
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| CN111274349B (en) * | 2020-01-21 | 2020-12-15 | 北方工业大学 | Public security data hierarchical indexing method and device based on information entropy |
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| US20060085392A1 (en) * | 2004-09-30 | 2006-04-20 | Microsoft Corporation | System and method for automatic generation of search results based on local intention |
| AU2012216254C1 (en) * | 2005-03-30 | 2015-12-03 | Ebay, Inc. | Methods and systems to process search information |
| US8060412B2 (en) * | 2007-04-25 | 2011-11-15 | Walter Steven Rosenbaum | System and method for obtaining merchandise information |
| CN101882291A (en) * | 2010-08-10 | 2010-11-10 | 万昌洵 | Problem-posing commodity information consultation method based on search engine technique |
| CN102169503B (en) * | 2011-04-29 | 2013-04-24 | 北京百度网讯科技有限公司 | Method and device for obtaining searching result corresponding with user query sequence |
| CN103020049A (en) * | 2011-09-20 | 2013-04-03 | 中国电信股份有限公司 | Searching method and searching system |
| CN102760174A (en) * | 2012-08-06 | 2012-10-31 | 吴建辉 | Distributed actual condition search engine based on geographic locations and trading system |
| US9418370B2 (en) * | 2012-10-23 | 2016-08-16 | Google Inc. | Obtaining event reviews |
| GB201306942D0 (en) * | 2013-04-17 | 2013-05-29 | Tomtom Int Bv | Methods, devices and computer software for facilitating searching and display of locations relevant to a digital map |
| US20150088921A1 (en) * | 2013-09-20 | 2015-03-26 | Ebay Inc. | Search guidance |
| CN105446989B (en) * | 2014-07-04 | 2019-06-07 | 阿里巴巴集团控股有限公司 | Searching method and device, display device |
| CN104166700A (en) * | 2014-08-01 | 2014-11-26 | 百度在线网络技术（北京）有限公司 | Search term recommendation method and device |
| US20160063012A1 (en) * | 2014-08-29 | 2016-03-03 | Neelakantan Sundaresan | Multi-user search or recommendation |
| CN104537551A (en) * | 2014-12-18 | 2015-04-22 | 符力 | Method for displaying commodities by searching |
| CN105160003B (en) * | 2015-09-11 | 2019-06-25 | 中山大学 | A kind of APP retrieval ordering method and system based on geographical location |
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