JP2013510343A - 検索結果のランク付けのための静的な関連性の特性としてのドキュメント長 - Google Patents
検索結果のランク付けのための静的な関連性の特性としてのドキュメント長 Download PDFInfo
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- JP2013510343A JP2013510343A JP2011527079A JP2011527079A JP2013510343A JP 2013510343 A JP2013510343 A JP 2013510343A JP 2011527079 A JP2011527079 A JP 2011527079A JP 2011527079 A JP2011527079 A JP 2011527079A JP 2013510343 A JP2013510343 A JP 2013510343A
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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
- G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
- G06F16/33—Querying
- G06F16/338—Presentation of query results
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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
- G06F16/951—Indexing; Web crawling techniques
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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
- G06F16/60—Information retrieval; Database structures therefor; File system structures therefor of audio data
- G06F16/63—Querying
- G06F16/638—Presentation of query results
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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
- G06F16/904—Browsing; Visualisation therefor
Abstract
Description
入力=
入力=
入力=
D=LD/LAVG (9)
ここで、Dは正規化ドキュメント長を表し、LDはランク付けされるドキュメントの長さを表し、LAVGはドキュメントのセットにおけるドキュメント平均長を表す。
F(D)=D,D<=1 (10)
F(D)=0.5+(3−D)/4,1<D<=3 (11)
F(D)=2/(D+1),D>3 (12)
次に、図4を参照すると、下記の議論は、本発明の実施形態が実施し得る適切なコンピューティング環境の簡潔かつ一般的な説明をするために意図されている。本発明は、パーソナルコンピューター上のオペレーティングシステムで動作するプログラムモジュールととともに実行するプログラムモジュールの一般的なコンテキストで説明するが、本発明が、他のタイプのコンピューターシステムおよびプログラムモジュールと組み合わせて実施することも可能であることは、当業者には認識される。
Claims (15)
- 情報を提供するためのシステム(100)であって、
クエリ入力に基づいて、検索結果を探し出すように構成される検索コンポーネント(102)と、
1つまたは複数のランキング特性(108)を含む前記クエリ入力に関連する情報を格納するように構成されるデータベースコンポーネント(110)であって、前記1つまたは複数のランキング特性(108)は、先行のユーザーによって実行された同一のクエリまたは類似のクエリに対する検索結果に関して収集可能な検索結果に関連する、ユーザー行為またはユーザー無行為に関連付けられ、前記1つまたは複数のランキング特性(108)内の1つのランキング特性は、ドキュメント長に関連付けられる、データベースコンポーネント(110)と、
ランキング関数、ならびに、行為ベース特性、無行為ベース特性およびドキュメント長特性を含む、前記1つまたは複数のランキング特性(108)に少なくとも部分的に基づいて、前記検索結果をランク付けするように構成されたランキングコンポーネント(104)であって、前記検索コンポーネント(102)が、ランキングの順位に従い前記検索結果を提供するときに、前記検索結果のランクを使用可能である、ランキングコンポーネント(104)と
を備えることを特徴とするシステム。 - 前記ドキュメント長は、ドキュメントのセットの平均長で、ランク付けが行われるドキュメントの長さを除算することにより正規化され、前記ランク付けが行われるドキュメントは、前記ドキュメントのセットに含まれ、前記ドキュメントの長さは、前記ドキュメントの単語数に対応することを特徴とする請求項1に記載のシステム。
- 変換関数は、正規化されたドキュメント長を0〜1間のランキング値に変換することを特徴とする請求項2に記載のシステム。
- 前記変換関数は、
F(D)=D,D<=1
F(D)=0.5+(3−D)/4,1<D<=3
F(D)=2/(D+1),D>3,
ここで、Dは前記正規化されたドキュメント長を表し、F(D)は前記ランキング値を表すと定義されることを特徴とする請求項3に記載のシステム。 - 前記ランキングコンポーネント(104)は、前記検索結果をランク付けするとき、1つまたは複数のクリックスルーパラメーターを使用でき、前記1つまたは複数のクリックスルーパラメーターは、
前記検索結果がクリックされた回数に関連するクリックパラメーターと、
前記検索結果がスキップされた回数に関連するスキップパラメーターと、
クリックされた検索結果に関連するクエリ文字列の集合に対応する第1のスト リームパラメーターと、
スキップされた検索結果に関連するクエリ文字列の集合に対応する第2のスト リームパラメーターと
のうちの1つまたは複数をさらに備えることを特徴とする請求項1に記載のシステム。 - 前記1つまたは複数のランキング特性(108)は、本文、タイトル、著者、生成されたタイトル、アンカーテキスト、およびURLから構成されるグループから選択される1つまたは複数の動的ランキング特性と、クリックディスタンス、URLの深さ、ファイルタイプ、および言語から構成されるグループから選択される1つまたは複数の静的ランキング特性とを備えることを特徴とする請求項1に記載のシステム。
- クエリに関連する情報を受信し、
前記クエリに関連する検索結果を探し出し、
クリックパラメーターおよび前記検索結果に関連する第1の入力を計算し、
スキップパラメーターおよび前記検索結果に関連する第2の入力を計算し、
ドキュメント長および前記検索結果に関連する第3の入力を計算し、
前記検索結果を前記第1の入力、前記第2の入力、および前記第3の入力を使用してランク付けするように構成されることを特徴とする検索エンジン(102)。 - 第1のストリームパラメーターおよび前記検索結果に関連する第4の入力を計算し、
第2のストリームパラメーターおよび前記検索結果に関連する第5の入力を計算し、
前記第1の入力、前記第2の入力、前記第3の入力、前記第4の入力、および前記第5の入力の内の少なくとも4つを使用して、前記検索結果をランク付けするようにさらに構成されることを特徴とする請求項12に記載の検索エンジン(102)。 - 情報を提供する方法であって、
1つまたは複数のキーワードを含むクエリを受信するステップと、
前記1つまたは複数のキーワードに部分的に基づいて候補を検索するステップと、
前記1つまたは複数のキーワードに部分的に基づいてクエリ候補を見出すステップと、
先行のユーザー行為および少なくとも1つの前記クエリ候補に関連する第1の入力値を決定するステップと、
先行のユーザー無行為および少なくとも1つの前記クエリ候補に関連する第2の入力値を決定するステップと、
前記クエリ候補のドキュメント長に関連する第3の入力値を決定するステップと、
スコアリング関数、前記第1の入力値、前記第2の入力値、および前記第3の入力値のうち1つまたは複数を使用するスコアリング決定に部分的に基づいて、前記クエリ候補のセットをランク付けするステップと
を含むことを特徴とする方法。 - テキストストリームおよびユーザーが行う少なくとも1つの前記クエリ候補の選択に関連する第4の入力値を決定するステップと、
スコアリング関数、ならびに前記第1の入力値、前記第2の入力値、前記第3の入力値、および前記第4の入力値を使用するスコアリング決定に部分的に基づいて、前記クエリ候補のセットをランク付けするステップと
をさらに含むことを特徴とする請求項14に記載の方法。
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US12/207,910 US9348912B2 (en) | 2007-10-18 | 2008-09-10 | Document length as a static relevance feature for ranking search results |
PCT/US2009/063333 WO2010031085A2 (en) | 2008-09-10 | 2009-11-05 | Document length as a static relevance feature for ranking search results |
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JP2013510343A true JP2013510343A (ja) | 2013-03-21 |
JP5620913B2 JP5620913B2 (ja) | 2014-11-05 |
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US (1) | US9348912B2 (ja) |
EP (1) | EP2329411A4 (ja) |
JP (1) | JP5620913B2 (ja) |
KR (1) | KR101683311B1 (ja) |
AU (1) | AU2009290574B2 (ja) |
BR (1) | BRPI0916924A2 (ja) |
IL (1) | IL210591A (ja) |
RU (1) | RU2517271C2 (ja) |
WO (1) | WO2010031085A2 (ja) |
ZA (1) | ZA201100293B (ja) |
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JPN6013050231; 村田 眞哉、外3名: 'クリックログ解析による情報要求ベースの検索結果ランキング' 日本データベース学会論文誌 第7巻,第4号, 20090327, p.37-42, 日本データベース学会 * |
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JP5735191B1 (ja) * | 2014-07-31 | 2015-06-17 | 楽天株式会社 | 検索装置、検索方法、記録媒体、ならびに、プログラム |
WO2016017001A1 (ja) * | 2014-07-31 | 2016-02-04 | 楽天株式会社 | 検索装置、検索方法、記録媒体、ならびに、プログラム |
JP2019079437A (ja) * | 2017-10-26 | 2019-05-23 | 富士通株式会社 | 回答出力プログラム、回答出力方法および情報処理装置 |
JP7009911B2 (ja) | 2017-10-26 | 2022-01-26 | 富士通株式会社 | 回答出力プログラム、回答出力方法および情報処理装置 |
KR20190090200A (ko) * | 2018-01-24 | 2019-08-01 | 충북대학교 산학협력단 | 학습에 기반한 검색결과 표시 방법 및 장치 |
KR102142986B1 (ko) | 2018-01-24 | 2020-08-10 | 충북대학교 산학협력단 | 학습에 기반한 검색결과 표시 방법 및 장치 |
KR20220073850A (ko) * | 2019-11-28 | 2022-06-03 | 미쓰비시덴키 가부시키가이샤 | 정보 처리 장치, 정보 처리 방법, 및 기록 매체 |
KR102452777B1 (ko) | 2019-11-28 | 2022-10-07 | 미쓰비시덴키 가부시키가이샤 | 정보 처리 장치, 정보 처리 방법, 및 기록 매체 |
Also Published As
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AU2009290574B2 (en) | 2015-01-29 |
US9348912B2 (en) | 2016-05-24 |
US20090106235A1 (en) | 2009-04-23 |
WO2010031085A3 (en) | 2010-07-08 |
JP5620913B2 (ja) | 2014-11-05 |
BRPI0916924A2 (pt) | 2019-09-24 |
IL210591A (en) | 2017-05-29 |
AU2009290574A1 (en) | 2010-03-18 |
RU2517271C2 (ru) | 2014-05-27 |
EP2329411A2 (en) | 2011-06-08 |
KR101683311B1 (ko) | 2016-12-06 |
IL210591A0 (en) | 2011-03-31 |
EP2329411A4 (en) | 2016-04-06 |
RU2011108842A (ru) | 2012-09-20 |
WO2010031085A2 (en) | 2010-03-18 |
KR20120089560A (ko) | 2012-08-13 |
ZA201100293B (en) | 2012-04-25 |
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