Beyond Total Capture: A Constructive Critique of Lifelogging

January 9, 2011

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Beyond Total Capture: A Constructive Critique of Lifelogging is a CACM article on lifelogging where the authors surveyed current research on lifelogging and provided suggestions. I’ve been also interested in the idea of ubiquitous and automatic capturing of personal information since the Life-Optimization Project I did before joining UMass CIIR, so this was an interesting read for […]

Posted in: HCI, PIM

Lessons from HCI Classics

January 6, 2011

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Recently I’ve been reading what the HCI people I know called ‘classics’, including several titles such as: Things That Make Us Smart by Donald Norman The Humane Interface by Jef Raskin As an IR graduate student who have mostly known the world of retrieval models and TREC-style evaluations, these books help me understand the cognitive […]

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Posted in: HCI

Seeking Summer Internship

January 3, 2011

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I’m currently looking for summer internship position. So far, I’ve mostly worked on the area of structured document retrieval and the retrieval of personal documents. Currently I’m preparing my thesis proposal whose main topic is combining different methods (keyword search, associative browsing and metadata-based filtering) for personal documents retrieval. Last year, I had summer internship […]

Posted in: Etc

Issues on TREC Session Track

December 14, 2010

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William Webber’s post on TREC Session Track got me thinking about what it means to evaluate a user’s session, or an interactive IR system in general. TREC Session track aims at extending the horizon of evaluation beyond the single query-response interaction, whose potential benefit is described in the following excerpt from the track overview paper: […]

Posted in: IR

Three Methods for Personal Information Access

December 9, 2010

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Although many of previous literatures mostly focused single method for accessing personal information, the choice of access method can be different depending on user’s knowledge, preference, and many other factors.In this post, I intend to compare three access methods and think about how these can be combined in the single retrieval task. The three methods […]

Posted in: PIM

Toward Repeatable Evaluation for PIM Research

December 2, 2010

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It’s been a while since I started the research on PIM (personal information management), focusing on the retrieval of personal documents. The empirical verification of research finding is the holy grail of science in general and information retrieval in particular, however, evaluation of PIM research has been a challenging problem for several reasons. The Challenge […]

Posted in: PIM

CIKM’10 Paper – Term Necessity Prediction

November 13, 2010

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Query modeling — finding an optimal representation of query — has been a hot topic for IR research (at least in UMass) for recent years. In addition to a classic theme of query expansion, new papers on query reduction, query-term weighting, query structuring (based on document fields) has been published. We even had a lab […]

Posted in: IR