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158
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SIGIR
2009
ACM
16 years 19 days ago
2009
ACM
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from...
186
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SIGIR
2009
ACM
16 years 19 days ago
2009
ACM
When search is against structured documents, it is beneficial to extract information from user queries in a format that is consistent with the backend data structure. As one step...
186
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SIGIR
2009
ACM
16 years 19 days ago
2009
ACM
Recommender Systems, based on collaborative filtering (CF), aim to accurately predict user tastes, by minimising the mean error achieved on hidden test sets of user ratings, afte...
155
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SIGIR
2009
ACM
16 years 19 days ago
2009
ACM
We proposed and implemented a novel clustering algorithm called LAIR2, which has constant running time average for on-the-fly Scatter/Gather browsing [4]. Our experiments showed ...
200
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SIGMETRICS
2009
ACM
16 years 19 days ago
2009
ACM
Disseminating a piece of information, or updates for a piece of information, has been shown to benefit greatly from simple randomized procedures, sometimes referred to as gossipi...