WO2015174061A1 - 検索装置、方法、およびプログラムの記録媒体 - Google Patents
検索装置、方法、およびプログラムの記録媒体 Download PDFInfo
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- WO2015174061A1 WO2015174061A1 PCT/JP2015/002363 JP2015002363W WO2015174061A1 WO 2015174061 A1 WO2015174061 A1 WO 2015174061A1 JP 2015002363 W JP2015002363 W JP 2015002363W WO 2015174061 A1 WO2015174061 A1 WO 2015174061A1
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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
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2457—Query processing with adaptation to user needs
- G06F16/24578—Query processing with adaptation to user needs using ranking
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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
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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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
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/242—Query formulation
- G06F16/2425—Iterative querying; Query formulation based on the results of a preceding query
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- the present invention relates to a search device, a method, and a program recording medium, and more particularly, to a search device, a method, and a program recording medium capable of quickly finding out target data.
- the search system is a system that, when a search condition such as a keyword is inputted, retrieves a record of data corresponding to the condition from a database or the like and outputs it.
- a search condition such as a keyword
- a large number of records may be output. In this case, the user has to find the target record from a large number of records.
- the following patent documents disclose techniques for solving this problem.
- Patent Document 1 discloses an apparatus for recording information such as the number of search hits performed. When performing a new search, this apparatus adds these pieces of information to the input keyword to change the search condition and improve the search accuracy.
- Patent Document 2 discloses a server that reduces the number of outputs by calculating a degree of relevance for a search result and integrating and outputting highly relevant ones.
- Patent Document 3 discloses a system for searching for documents.
- this system outputs a document list based on the similarity to a given search condition, and then acquires and accumulates the results of classifying the documents in the list from the user.
- this system classifies the search results based on the accumulated classification results to improve the search accuracy.
- the search system if there are a large number of matching records for the search conditions specified by the user, it is indispensable to improve the convenience of the user by narrowing down the results. This narrowing should be performed according to the user's search situation. However, the user's search status may change during a series of searches.
- a user such as the police may search for a suspect from a number of surveillance camera images.
- the user searches for a person wearing “red clothes” based on the witness testimony.
- the search target since the user cannot specify what “red clothes” the search target is wearing, it is better that the search results have a high coverage of various red colors.
- the search results after the “red clothes” worn by the suspect are identified, only the image of the person wearing the identified “red clothes” needs to be presented in order to see the gait of the person.
- the search result is filled with images other than the target person.
- the search situation that is, the degree of the search result narrowing request for the search target may change. It is desirable that the search system presents search results according to the changed search situation.
- a search device includes a search unit for searching a record that matches an input search condition with a set degree of match or higher from a storage unit that stores records, and outputting a search result.
- search unit for searching a record that matches an input search condition with a set degree of match or higher from a storage unit that stores records, and outputting a search result.
- the search method searches a record that matches a first search condition that has been input to a storage unit that stores records that meets a first search condition that is greater than or equal to a set fitness level, and outputs a search result.
- a user operation is input after the search result is output, the quality of the specific result of the search result is estimated based on the user operation, and when the quality is estimated to be good, the fitness used for the search is increased.
- the computer-readable recording medium searches for a record that matches an input search condition with a set degree of conformance or higher from a storage unit that stores the record, and obtains a search result.
- the degree of specification of the search result is estimated based on the user operation,
- a program that causes a computer to execute a specific degree estimation process that increases the degree of fitness used in the search process when it is estimated to be good is stored.
- the search device can present a search result in accordance with a change in a user's search situation. As a result, the user can reduce the trouble of checking the search result.
- FIG. 1 is a structural diagram of a search system 20 according to the first embodiment of this invention.
- FIG. 2 is an operation flowchart of the search device 10.
- FIG. 3 is an operation flowchart of relevance (case 1) performed by the specific degree estimation unit 12.
- FIG. 4 is an operation flowchart of relevance (case 2) performed by the specific degree estimation unit 12.
- FIG. 5 is a structural diagram of the search device 10 according to the second embodiment of this invention.
- FIG. 1 is a structural diagram of a search system 20 according to the first embodiment of this invention.
- the search system 20 includes a search device 10, a history storage unit 15, and a data storage unit 16.
- the search device 10 includes an input unit 11, a specific degree estimation unit 12, a search unit 13, and a result output unit 14.
- the search device 10 is connected to the history storage unit 15 and the data storage unit 16.
- the search device 10 receives a search condition from a terminal device (not shown) operated by a user, searches the data storage unit 16, extracts a record that matches the search condition, and displays the record on the terminal device.
- the data storage unit 16 stores data records to be searched.
- the data record is image data of a surveillance camera, for example.
- the search device 10 In a series of searches in which a user is searching for a target record, the search device 10 initially displays a search result with high completeness, and when the search progresses and candidates are sufficiently narrowed down, the search result with high accuracy is displayed. Is output.
- the search condition received by the search device 10 is described in, for example, SQL (Structured Query) Language.
- the search condition includes a value of one or more condition items or a range of values. For example, for the time item, the search condition includes a value of 9 o'clock. For example, for a color item, the search condition includes a specific GBR value. For example, for an address item, the search condition includes a specific prefecture, city, ward name, and region name.
- the input unit 11 receives a message including a search condition designated by the user from the terminal device.
- the search unit 13 searches the data storage unit 16 and extracts records that meet the search condition.
- the result output unit 14 outputs the extracted record as a search result to the terminal device.
- the suitability is set in the search unit 13, and the search unit 13 extracts records that match the search condition more than the set suitability from the data storage unit 16.
- the goodness of fit is an index representing the proximity to the search condition or the similarity.
- the goodness of fit may be set for each condition item, or may be set for a plurality of condition items. For example, when “red” is designated as the condition item for the color, the fitness value designates a range of blue and green values that may be included in the color of the record.
- the fitness may be a time range or a temperature range.
- the degree of fitness may be specified as the address width, for example, within the same prefecture or neighboring town.
- the search unit 13 extracts a narrow range of records centering on the search condition. That is, the search unit 13 outputs a search result with high accuracy.
- the search unit 13 extracts a wide range of records centering on the search condition. That is, the search unit 13 outputs a search result with high completeness.
- the degree-of-specificity estimation unit 12 estimates the degree of narrowing of the search result (specific degree) for the search target record based on the user's operation performed on the last search result, and the degree of specificity is a predetermined value. If it is estimated to be better than this, the fitness is set high. This is because it can be determined that the search has progressed and the candidates have been sufficiently narrowed down.
- the history storage unit 15 stores, for example, a history of search conditions used for the search, search results, and operations performed by the user on the search results.
- the operations performed by the user on the search result are, for example, scrolling, page turning, copy and paste to the search condition, and printing.
- the result output unit 14 divides the search result into pages and displays them on the terminal device in units of pages, for example. While the user sequentially displays the output pages, the user searches for a target record or considers the next search condition for improving the accuracy of the search result. In this way, page feed indicates that a plurality of pages of search results are sequentially displayed.
- the result output unit 14 may display the search result as continuous large data without dividing the search result into pages. In this case, the user scrolls the screen instead of turning the page.
- the input unit 11, the specific degree estimation unit 12, the search unit 13, and the result output unit 14 are composed of logic circuits.
- the input unit 11, the degree-of-specificity estimation unit 12, the search unit 13, or the result output unit 14 may be realized by a program that is stored in the memory of the search device 10 that is also a computer and executed by the processor.
- the history storage unit 15 and the data storage unit 16 are storage devices such as disk devices.
- FIG. 2 is an operation flowchart of the search device 10. In the initial state when a series of searches is started, a low fitness is set in the search unit 13.
- the input unit 11 receives it (A1). If it is the first search condition input of a series of searches, the search unit 13 searches the data storage unit 16 using the search condition and extracts records in a range satisfying the set fitness ( A2). That is, in the initial stage of a series of searches, the search unit 13 performs extraction with high completeness that satisfies a low degree of fitness. The result output unit 14 outputs the extracted record as a search result to the terminal device (A3). At this time, the search unit 13 stores the executed search conditions and search results in the history storage unit 15.
- the user looks at the output search results and determines whether the search results are sufficiently narrowed down. If it is narrowed down sufficiently, the user will try to find the target record visually from the search results.
- the user will change the search condition so as to change the search range to another part.
- the direction of narrowing down is correct, but if it is insufficient, the user may narrow the value range of the search item. For example, the user may change the designation of the address item from the prefecture unit to the municipality unit.
- the user may replace the search condition with the data.
- the user designates the color selected from the color palette presented by the system as the color item of the search condition in the first search.
- the user may copy and paste the designation of the color item from the pixel data of the image of the first search result to the search condition.
- the user observes the many search results displayed to determine what kind of unnecessary data is included and performs appropriate filtering. The search conditions necessary for this will be considered. At this time, the user will frequently use the above-mentioned page turning and scrolling.
- the input unit 11 of the search device 10 receives the operation data of these users and stores it in the history storage unit 15 (A4).
- the specific degree estimation unit 12 updates the fitness set in the search unit 13 (A8, details will be described later).
- a search using the new search condition is executed (return to A2).
- the search unit 13 uses the updated fitness.
- the degree of matching becomes high, the search unit 13 performs extraction with high accuracy but lower completeness than the previous search.
- the degree of fitness is low, the search unit 13 performs extraction with lower accuracy but higher completeness than the previous search.
- the result output unit 14 performs the user operation, for example, Page feed is executed (A7). After executing the user operation, the input unit 11 receives the next user operation data (returns to A4).
- the search device 10 ends the series of searches.
- FIG. 3 is an operation flowchart of relevance (case 1) performed by the specific degree estimation unit 12.
- the degree-of-specificity estimation unit 12 compares the last-executed search condition with the new search condition received this time, and extracts a difference (B1).
- the degree-of-specificity estimation unit 12 acquires the last-executed search condition from the history storage unit 15.
- the specific degree estimation unit 12 increases the degree of fitness (B4).
- Increasing the fitness level is, for example, selecting and setting a fitness level higher than the currently set fitness level from a plurality of fitness levels.
- the degree-of-specificity estimation unit 12 increases the fitness ( B4).
- the degree-of-specificity estimation unit 12 acquires the last search result from the history storage unit 15.
- the specific degree estimation unit 12 does not update the degree of conformity.
- the degree-of-specificity estimation unit 12 may reduce the degree of fitness. This is because the search conditions have not converged and the search may be strayed.
- the search apparatus 10 when the color designation is a value selected from data prepared as a reference such as a color palette, the user can infer that information about the search target is insufficient. Therefore, the search apparatus 10 outputs a result with high completeness by lowering the fitness. If the color designation is the data value of the record already presented to the user, it can be assumed that the user has enough information about the search target. In this case, the search device 10 increases the fitness and outputs a highly accurate result.
- the search device 10 outputs a result with high completeness.
- the search conditions are strict, it can be estimated that the user is specifying the search target. In this case, the search device 10 outputs a highly accurate result.
- FIG. 4 is an operation flowchart of relevance (case 2) performed by the specific degree estimation unit 12. If the operation performed by the user before inputting a new search condition is page feed or scroll for the last search result (Yes in C1), and the amount of page feed or scroll is equal to or less than a predetermined value (in C2) Yes), the degree-of-specificity estimation unit 12 increases the degree of matching (C3). The degree-of-specificity estimation unit 12 acquires user operation data from the history storage unit 15.
- the degree-of-specificity estimation unit 12 does not change the degree of fitness. In this case, the degree-of-specificity estimation unit 12 may lower the degree of matching.
- the predetermined value is preset in the search device 10 by the administrator.
- the search unit 13 executes a search by switching a plurality of matching degrees.
- the search unit 13 includes a plurality of sub-search units (not shown) that execute a search with a single fitness level, and selects a sub-search unit to execute a search according to the set fitness level. It may be configured.
- the search unit 13 may output the records that are too similar as one representative. This is because when a record satisfying the search condition is newly found, the similarity with the record already listed as a search result is calculated, and if the similarity is a predetermined threshold or more, the newly found This can be achieved by not including records in the search results.
- the similarity is, for example, the sum of the ratios of data differences corresponding to the condition items.
- the search device 10 can present a search result according to a change in the search situation of the user. As a result, the user can reduce the trouble of checking the search result. The reason is that if the degree-of-specificity estimation unit 12 can estimate that the last-executed search result is narrowed down, the degree of matching is set high. As a result, the search device 10 first outputs a search result with high completeness, and outputs a search result with high accuracy as the narrowing proceeds.
- FIG. 5 is a structural diagram of the search device 10 according to the second embodiment of this invention.
- the search device 10 includes a specific degree estimation unit 12 and a search unit 13.
- the search unit 13 searches the storage unit storing the records for records that match the input search condition more than the set fitness level, and outputs the search results.
- the specific degree estimation unit 12 estimates the quality of the specific degree of the search result based on the user operation. The degree of fitness used by the search unit 13 when it is estimated to be good is increased.
- the search device 10 can present a search result that matches the change in the search status of the user. As a result, the user can reduce the trouble of checking the search result. The reason is that if the degree-of-specificity estimation unit 12 can estimate that the last-executed search result is narrowed down, the degree of matching is set high.
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Abstract
Description
図1は、本発明の第1の実施形態の検索システム20の構造図である。検索システム20は、検索装置10、履歴蓄積部15、及び、データ蓄積部16を含む。検索装置10は、入力部11、特定度合推定部12、検索部13、及び、結果出力部14を備える。検索装置10は、履歴蓄積部15、及び、データ蓄積部16に接続されている。
第1の実施の形態において、検索部13は複数の適合度を切り替えて検索を実行する。検索部13は、その内部に一つの適合度で検索を実行するサブ検索部(図示されず)を複数備え、設定された適合度に合わせて、サブ検索部を選択して検索を実行するように構成されても良い。
検索装置10は、利用者の検索状況の変化に合わせた検索結果を提示することができる。その結果、利用者は、検索結果を確認する手間を軽減することできる。その理由は特定度合推定部12が、最後に実行した検索結果の絞り込み具合が良いと推定できれば、適合度を高く設定するからである。この結果、検索装置10は、最初は網羅性の高い検索結果を出力し、絞り込みが進むと精度の高い検索結果を出力する。
図5は、本発明の第2の実施形態の検索装置10の構造図である。検索装置10は特定度合推定部12と検索部13とを備える。
11 入力部
12 特定度合推定部
13 検索部
14 結果出力部
15 履歴蓄積部
16 データ蓄積部
20 検索システム
Claims (10)
- レコードを格納する蓄積手段から、設定された適合度以上に、入力された検索条件に適合するレコードを検索して、検索結果を出力する検索手段と、
第1の検索条件に対する検索結果を前記検索手段が出力した後に、ユーザ操作を入力されると、前記ユーザ操作に基づいて当該検索結果の特定度合の良否を推定し、良と推定した場合に前記検索手段が用いる適合度を上げる特定度合推定手段と、を備える検索装置。 - 前記ユーザ操作が第2の検索条件入力であり、
前記特定度合推定手段は、前記第2の検索条件が、前記第1の検索条件の一部を前記第1の検索条件に対する検索結果に含まれるレコード内のデータで置換したものであることを検出すると、前記特定度合を良と推定する、請求項1の検索装置。 - 前記ユーザ操作が第2の検索条件入力であり、
前記特定度合推定手段は、前記第2の検索条件の適合範囲が、前記第1の検索条件の適合範囲より狭くなっていることを検出すると、前記特定度合を良と推定する、請求項1の検索装置。 - 前記ユーザ操作が前記第1の検索条件に対する検索結果の表示に対するページ送りあるいはスクロールであり、
前記特定度合推定手段は、前記ページ送りの回数あるいは前記スクロールの量が所定値以下であることを検出すると、前記特定度合を良と推定する、請求項1の検索装置。 - 請求項1乃至4の何れかの検索装置と、
前記蓄積手段と、を包含する検索システム。 - レコードを格納する蓄積手段から、設定された適合度以上に、入力された第1の検索条件に適合するレコードを検索して、検索結果を出力し、
当該検索結果出力後にユーザ操作を入力されると、前記ユーザ操作に基づいて当該検索結果の特定度合の良否を推定し、良と推定した場合に、検索に用いる前記適合度を上げる検索方法。 - 前記ユーザ操作が第2の検索条件入力であり、
前記第2の検索条件が、前記第1の検索条件の一部を前記第1の検索条件に対する検索結果に含まれるレコード内のデータで置換したものであることを検出すると、前記特定度合を良と推定する、請求項6の検索方法。 - 前記ユーザ操作が第2の検索条件入力であり、
前記第2の検索条件の適合範囲が、前記第1の検索条件の適合範囲より狭くなっていることを検出すると、前記特定度合を良と推定する、請求項6の検索方法。 - 前記ユーザ操作が前記第1の検索条件に対する検索結果の表示に対するページ送りあるいはスクロールであり、
前記ページ送りの回数あるいは前記スクロールの量が所定値以下であることを検出すると、前記特定度合を良と推定する、請求項6の検索方法。 - レコードを格納する蓄積手段から、設定された適合度以上に、入力された検索条件に適合するレコードを検索して、検索結果を出力する検索処理と、
第1の検索条件に対する検索結果を前記検索手段が出力した後に、ユーザ操作を入力されると、前記ユーザ操作に基づいて当該検索結果の特定度合の良否を推定し、良と推定した場合に前記検索処理で用いる適合度を上げる特定度合推定処理と、をコンピュータに実行させるプログラムを格納するコンピュータ読み取り可能な記録媒体。
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US16/690,449 US11544276B2 (en) | 2014-05-15 | 2019-11-21 | Search device, method and program recording medium |
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US20200089685A1 (en) | 2020-03-19 |
JPWO2015174061A1 (ja) | 2017-04-20 |
JP6958647B2 (ja) | 2021-11-02 |
JP2020074215A (ja) | 2020-05-14 |
US20170031924A1 (en) | 2017-02-02 |
US10885043B2 (en) | 2021-01-05 |
US11544276B2 (en) | 2023-01-03 |
US20200089686A1 (en) | 2020-03-19 |
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