3190 search results - page 547 / 638 » cans 2011 |
199
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SDM
2011
SIAM
14 years 8 months ago
2011
SIAM
A binary matrix is fully nested if its columns form a chain of subsets; that is, any two columns are ordered by the subset relation, where we view each column as a subset of the r...
241
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SIGECOM
2011
ACM
14 years 8 months ago
2011
ACM
We present algorithms for a class of resource allocation problems both in the online setting with stochastic input and in the offline setting. This class of problems contains man...
177
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SIGIR
2011
ACM
14 years 8 months ago
2011
ACM
Online forum discussions are emerging as valuable information repository, where knowledge is accumulated by the interaction among users, leading to multiple threads with structure...
187
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SIGIR
2011
ACM
14 years 8 months ago
2011
ACM
Versioned textual collections are collections that retain multiple versions of a document as it evolves over time. Important large-scale examples are Wikipedia and the web collect...
206
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SIGIR
2011
ACM
14 years 8 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...