JP2021092925A - データ生成装置およびデータ生成方法 - Google Patents
データ生成装置およびデータ生成方法 Download PDFInfo
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
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- G06F16/335—Filtering based on additional data, e.g. user or group profiles
- G06F16/337—Profile generation, learning or modification
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- 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
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- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/33—Querying
- G06F16/332—Query formulation
- G06F16/3325—Reformulation based on results of preceding query
- G06F16/3326—Reformulation based on results of preceding query using relevance feedback from the user, e.g. relevance feedback on documents, documents sets, document terms or passages
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- G06F16/335—Filtering based on additional data, e.g. user or group profiles
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
- G06F18/20—Analysing
- G06F18/21—Design or setup of recognition systems or techniques; Extraction of features in feature space; Blind source separation
- G06F18/211—Selection of the most significant subset of features
- G06F18/2113—Selection of the most significant subset of features by ranking or filtering the set of features, e.g. using a measure of variance or of feature cross-correlation
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F18/00—Pattern recognition
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Abstract
Description
101 受付部
102 解析部
103 分類部
104 推定部
105 学習部
106 検索部
107 出力制御部
108 更新部
121 記憶部
122 表示部
Claims (9)
- 複数のユーザそれぞれの属性を示すユーザ情報に基づいて、前記属性が相互に類似する複数のユーザを複数のクラスタのいずれかに分類する分類部と、
検索結果に含まれる情報と、複数の前記クラスタの属性を示す情報との類似度に基づいて、前記検索結果がユーザに有益か否かを推定し、前記検索結果と、前記検索結果が有益か否かを示す推定情報と、を含むデータであって、複数の検索結果の順序を決定するためのランキングモデルの学習データを出力する推定部と、
を備えるデータ生成装置。 - 前記分類部は、複数の前記クラスタそれぞれについて、前記クラスタに分類された複数のユーザの属性のうち、複数のユーザ間で類似すると判定された属性を、前記クラスタの属性として決定する、
請求項1に記載のデータ生成装置。 - 前記推定情報は、ユーザが前記検索結果を選択するか否かを示し、
前記推定部は、前記検索結果に含まれる情報と、複数の前記クラスタの属性を示す情報とが類似する場合に、ユーザが前記検索結果を選択すると推定する、
請求項1に記載のデータ生成装置。 - ユーザによる情報の検索処理の履歴に基づいて、前記ユーザが属する前記クラスタを推定し、推定した前記クラスタの属性のうち、前記ユーザに対して設定されていない属性の属性値を更新する更新部をさらに備える、
請求項1に記載のデータ生成装置。 - 前記ランキングモデルを、前記学習データを用いて学習する学習部をさらに備える、
請求項1に記載のデータ生成装置。 - 前記推定部は、指定された重みをさらに含む前記学習データを出力し、
前記学習部は、第1検索結果より前記重みの値が大きい第2検索結果が、前記第1検索結果より前の順序となるように、前記ランキングモデルを学習する、
請求項5に記載のデータ生成装置。 - 検索処理を実行して複数の検索結果を求め、学習された前記ランキングモデルを用いて複数の前記検索結果の順序を決定する検索部と、
決定された順序で複数の前記検索結果を出力する出力制御部と、をさらに備える、
請求項5に記載のデータ生成装置。 - 前記推定部は、前記推定情報をランダムに変更し、変更した前記推定情報を含む前記学習データを出力する、
請求項1に記載のデータ生成装置。 - 複数のユーザそれぞれの属性を示すユーザ情報に基づいて、前記属性が相互に類似する複数のユーザを複数のクラスタのいずれかに分類する分類ステップと、
検索結果に含まれる情報と、複数の前記クラスタの属性を示す情報との類似度に基づいて、前記検索結果がユーザに有益か否かを推定し、前記検索結果と、前記検索結果が有益か否かを示す推定情報と、を含むデータであって、複数の検索結果の順序を決定するためのランキングモデルの学習データを出力する推定ステップと、
を含むデータ生成方法。
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JP2023091578A (ja) * | 2021-12-20 | 2023-06-30 | エヌ・ティ・ティ・コミュニケーションズ株式会社 | 選定装置、選定方法および選定プログラム |
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JP7317931B2 (ja) | 2021-12-20 | 2023-07-31 | エヌ・ティ・ティ・コミュニケーションズ株式会社 | 選定装置、選定方法および選定プログラム |
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