日本語
 
Help Privacy Policy ポリシー/免責事項
  詳細検索ブラウズ

アイテム詳細

  Temporal Index Sharding for Space-time Efficiency in Archive Search

Anand, A., Bedathur, S., Berberich, K., & Schenkel, R. (2011). Temporal Index Sharding for Space-time Efficiency in Archive Search. In W.-Y., Ma, J.-Y., Nie, R. A., Baeza-Yates, T.-S., Chua, & W. B., Croft (Eds.), SIGIR’11 (pp. 545-554). New York, NY: ACM. doi:10.1145/2009916.2009991.

Item is

基本情報

表示: 非表示:
資料種別: 会議論文

ファイル

表示: ファイル

関連URL

表示:

作成者

表示:
非表示:
 作成者:
Anand, Avishek1, 著者           
Bedathur, Srikanta1, 著者           
Berberich, Klaus1, 著者           
Schenkel, Ralf1, 著者           
所属:
1Databases and Information Systems, MPI for Informatics, Max Planck Society, ou_24018              

内容説明

表示:
非表示:
キーワード: -
 要旨: Time-travel queries that couple temporal constraints with keyword queries are useful in searching large-scale archives of time-evolving content such as the Web, document collections, wikis, and so on. Typical approaches for efficient evaluation of these queries involve \emph{slicing} along the time-axis either the entire collection~\cite{253349}, or individual index lists~\cite{kberberi:sigir2007}. Both these methods are not satisfactory since they sacrifice compactness of index for processing efficiency making them either too big or, otherwise, too slow. We present a novel index organization scheme that \emph{shards} the index with \emph{zero increase in index size}, still minimizing the cost of reading index index entries during query processing. Based on the optimal sharding thus obtained, we develop practically efficient sharding that takes into account the different costs of random and sequential accesses. Our algorithm merges shards from the optimal solution carefully to allow for few extra sequential accesses while gaining significantly by reducing the random accesses. Finally, we empirically establish the effectiveness of our novel sharding scheme via detailed experiments over the edit history of the English version of Wikipedia between 2001-2005 ($\approx$ 700 GB) and an archive of the UK governmental web sites ($\approx$ 400 GB). Our results demonstrate the feasibility of faster time-travel query processing with no space overhead.

資料詳細

表示:
非表示:
言語: eng - English
 日付: 20112011
 出版の状態: 出版
 ページ: -
 出版情報: -
 目次: -
 査読: -
 識別子(DOI, ISBNなど): eDoc: 618955
DOI: 10.1145/2009916.2009991
URI: http://doi.acm.org/10.1145/2009916.2009991
その他: Local-ID: C1256DBF005F876D-CBF71516EA666361C125786F002D8E69-BedathurABS2011
 学位: -

関連イベント

表示:
非表示:
イベント名: 34th International ACM SIGIR Conference on Research and Development in Information Retrieval
開催地: Beijing, China
開始日・終了日: 2011-07-24 - 2011-07-28

訴訟

表示:

Project information

表示:

出版物 1

表示:
非表示:
出版物名: SIGIR’11
  副タイトル : Proceedings of the 34th International ACM SIGIR Conference on Research and Development in Information Retrieval
  省略形 : SIGIR 2011
種別: 会議論文集
 著者・編者:
Ma, Wei-Ying1, 編集者
Nie, Jian-Yun1, 編集者
Baeza-Yates, Ricardo A.1, 編集者
Chua, Tat-Seng1, 編集者
Croft, W. Bruce1, 編集者
所属:
1 External Organizations, ou_persistent22            
出版社, 出版地: New York, NY : ACM
ページ: - 巻号: - 通巻号: - 開始・終了ページ: 545 - 554 識別子(ISBN, ISSN, DOIなど): ISBN: 978-1-4503-0757-4