727 search results - page 51 / 146 » Private approximation of search problems |
PVLDB
2008
13 years 9 months ago
2008
In this paper we propose a novel document retrieval model in which text queries are augmented with multi-dimensional taxonomy restrictions. These restrictions may be relaxed at a ...
TCS
2010
13 years 8 months ago
2010
We study non-uniform constraint satisfaction problems definable in monadic Datalog stratified by the use of non-linearity. We show how such problems can be described in terms of...
ESA
2009
Springer
14 years 2 months ago
2009
Springer
Sponsored search auctions provide a marketplace where advertisers can bid for millions of advertising opportunities to promote their products. The main difficulty facing the adver...
AIRWEB
2005
Springer
14 years 3 months ago
2005
Springer
This paper investigates the influence of different page features on the ranking of search engine results. We use Google (via its API) as our testbed and analyze the result rankin...
CRYPTO
2006
Springer
14 years 1 months ago
2006
Springer
We present an identity-based cryptosystem that features fully anonymous ciphertexts and hierarchical key delegation. We give a proof of security in the standard model, based on the...