NDLI: Leveraging Temporal Query-Term Dependency for Time-Aware Information Access

Content Provider	IEEE Xplore Digital Library
Author	Moulahi, B. Tamine, L. Ben Yahia, S.
Copyright Year	2015
Description	Author affiliation: IRIT, Univ. of Toulouse, Toulouse, France (Moulahi, B.; Tamine, L.) \|\| Fac. of Sci. of Tunis, Univ. of Tunis El Manar, Tunis, Tunisia (Ben Yahia, S.)
Abstract	Incorporating the temporal property of queries into time-aware information access methods has been shown to have a significant positive effect on a large number of search tasks, such as over microblogs and news archive. Recent work on time-aware search mostly rely on time-based relevance models that are built upon the language model framework. However, in this model, query terms are often assumed to be generated independently from each other. In this paper, we observe through a time series analysis that, query terms are temporally dependent and are frequently occurring within similar time periods when they deal with the same topics. In contrast to existing work, we propose a method that naturally extends the effective temporal language model and exploits this dependency at the term granularity level. Moreover, we reframe the task as a rank aggregation problem that fully exploits the temporal features of query terms. Experiments using the large-scale TREC Temporal Summarization 2013 and 2014 standard datasets empirically show that our method leads to significant performance improvements, when compared to state-of-the-art temporal ranking models.
Sponsorship	IEEE Comput. Soc.
Starting Page	149
Ending Page	156
File Size	4301118
Page Count	8
File Format	PDF
e-ISBN	9781467396189
DOI	10.1109/WI-IAT.2015.128
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-12-06
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relevance temporal information retrieval ranking Intelligent agents
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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