10542 search results - page 277 / 2109 » A General Notion of Useful Information |
164
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ECIR
2009
Springer
16 years 3 months ago
2009
Springer
We explore the utility of different types of topic models for retrieval purposes. Based on prior work, we describe several ways that topic models can be integrated into the retrie...
169
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ICALP
2005
Springer
16 years 8 days ago
2005
Springer
We present a single-database private information retrieval (PIR) scheme with communication complexity O(k+d), where k ≥ log n is a security parameter that depends on the database...
177
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ICALP
2005
Springer
16 years 8 days ago
2005
Springer
We prove new lower bounds for locally decodable codes and private information retrieval. We show that a 2-query LDC encoding nbit strings over an ℓ-bit alphabet, where the decode...
167
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CRYPTO
1999
Springer
15 years 11 months ago
1999
Springer
Several variations of rooted tree based solutions have been recently proposed for member revocation in multicast communications [18, 19, 20, 21]. In this paper, we show that by ass...
190
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ACL
2004
15 years 8 months ago
2004
Sentiment classification is the task of labeling a review document according to the polarity of its prevailing opinion (favorable or unfavorable). In approaching this problem, a m...