Time-based language models

Xiaoyan Li; W. Bruce Croft

doi:10.1145/956950.956951

Time-based language models

Xiaoyan Li, W. Bruce Croft

Research output: Contribution to conference › Paper › peer-review

212 Scopus citations

Abstract

We explore the relationship between time and relevance using TREC ad-hoc queries. A type of query is identified that favors very recent documents. We propose a time-based language model approach to retrieval for these queries. We show how time can be incorporated into both query-likelihood models and relevance models. These models were used for experiments comparing time-based language models to heuristic techniques for incorporating document recency in the ranking. Our results show that time-based models perform as well as or better than the best of the heuristic techniques.

Original language	English (US)
Pages	469-475
Number of pages	7
DOIs	https://doi.org/10.1145/956950.956951
State	Published - 2003
Externally published	Yes
Event	CIKM 2003: Proceedings of the Twelfth ACM International Conference on Information and Knowledge Management - New Orleans, LA, United States Duration: Nov 3 2003 → Nov 8 2003

Conference

Conference	CIKM 2003: Proceedings of the Twelfth ACM International Conference on Information and Knowledge Management
Country/Territory	United States
City	New Orleans, LA
Period	11/3/03 → 11/8/03

All Science Journal Classification (ASJC) codes

General Decision Sciences
General Business, Management and Accounting

Keywords

Information retrieval
Language models
Recency queries
Relevance models
Time-based language models

Access to Document

10.1145/956950.956951

Cite this

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title = "Time-based language models",

abstract = "We explore the relationship between time and relevance using TREC ad-hoc queries. A type of query is identified that favors very recent documents. We propose a time-based language model approach to retrieval for these queries. We show how time can be incorporated into both query-likelihood models and relevance models. These models were used for experiments comparing time-based language models to heuristic techniques for incorporating document recency in the ranking. Our results show that time-based models perform as well as or better than the best of the heuristic techniques.",

keywords = "Information retrieval, Language models, Recency queries, Relevance models, Time-based language models",

author = "Xiaoyan Li and Croft, {W. Bruce}",

year = "2003",

doi = "10.1145/956950.956951",

language = "English (US)",

pages = "469--475",

note = "CIKM 2003: Proceedings of the Twelfth ACM International Conference on Information and Knowledge Management ; Conference date: 03-11-2003 Through 08-11-2003",

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TY - CONF

T1 - Time-based language models

AU - Li, Xiaoyan

AU - Croft, W. Bruce

PY - 2003

Y1 - 2003

N2 - We explore the relationship between time and relevance using TREC ad-hoc queries. A type of query is identified that favors very recent documents. We propose a time-based language model approach to retrieval for these queries. We show how time can be incorporated into both query-likelihood models and relevance models. These models were used for experiments comparing time-based language models to heuristic techniques for incorporating document recency in the ranking. Our results show that time-based models perform as well as or better than the best of the heuristic techniques.

AB - We explore the relationship between time and relevance using TREC ad-hoc queries. A type of query is identified that favors very recent documents. We propose a time-based language model approach to retrieval for these queries. We show how time can be incorporated into both query-likelihood models and relevance models. These models were used for experiments comparing time-based language models to heuristic techniques for incorporating document recency in the ranking. Our results show that time-based models perform as well as or better than the best of the heuristic techniques.

KW - Information retrieval

KW - Language models

KW - Recency queries

KW - Relevance models

KW - Time-based language models

UR - http://www.scopus.com/inward/record.url?scp=8644258207&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=8644258207&partnerID=8YFLogxK

U2 - 10.1145/956950.956951

DO - 10.1145/956950.956951

M3 - Paper

AN - SCOPUS:8644258207

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EP - 475

T2 - CIKM 2003: Proceedings of the Twelfth ACM International Conference on Information and Knowledge Management

Y2 - 3 November 2003 through 8 November 2003

ER -

Time-based language models

Abstract

Conference

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

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