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ACM Transactions on Information Systems (TOIS), Volume 27 Issue 1, December 2008

Sound and complete relevance assessment for XML retrieval
Benjamin Piwowarski, Andrew Trotman, Mounia Lalmas
Article No.: 1
DOI: 10.1145/1416950.1416951

In information retrieval research, comparing retrieval approaches requires test collections consisting of documents, user requests and relevance assessments. Obtaining relevance assessments that are as sound and complete as possible is crucial for...

Rank-biased precision for measurement of retrieval effectiveness
Alistair Moffat, Justin Zobel
Article No.: 2
DOI: 10.1145/1416950.1416952

A range of methods for measuring the effectiveness of information retrieval systems has been proposed. These are typically intended to provide a quantitative single-value summary of a document ranking relative to a query. However, many of these...

Trusting spam reporters: A reporter-based reputation system for email filtering
Elena Zheleva, Aleksander Kolcz, Lise Getoor
Article No.: 3
DOI: 10.1145/1416950.1416953

Spam is a growing problem; it interferes with valid email and burdens both email users and service providers. In this work, we propose a reactive spam-filtering system based on reporter reputation for use in conjunction with existing...

Extended probabilistic HAL with close temporal association for psychiatric query document retrieval
Jui-Feng Yeh, Chung-Hsien Wu, Liang-Chih Yu, Yu-Sheng Lai
Article No.: 4
DOI: 10.1145/1416950.1416954

Psychiatric query document retrieval can assist individuals to locate query documents relevant to their depression-related problems efficiently and effectively. By referring to relevant documents, individuals can understand how to alleviate their...

combinFormation: Mixed-initiative composition of image and text surrogates promotes information discovery
Andruid Kerne, Eunyee Koh, Steven M. Smith, Andrew Webb, Blake Dworaczyk
Article No.: 5
DOI: 10.1145/1416950.1416955

combinFormation is a mixed-initiative creativity support tool for searching, browsing, organizing, and integrating information. Images and text are connected to represent surrogates (enhanced bookmarks), optimizing the use of human cognitive...

Toward automatic facet analysis and need negotiation: Lessons from mediated search
Jimmy Lin, Philip Wu, Eileen Abels
Article No.: 6
DOI: 10.1145/1416950.1416956

This work explores the hypothesis that interactions between a trained human search intermediary and an information seeker can inform the design of interactive IR systems. We discuss results from a controlled Wizard-of-Oz case study, set in the...