2061 search results - page 270 / 413 » Modeling search engine effectiveness for federated search |
158
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SIGIR
2006
ACM
16 years 13 days ago
2006
ACM
Pseudo-relevance feedback has proven to be an effective strategy for improving retrieval accuracy in all retrieval models. However the performance of existing pseudo feedback meth...
192
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ICIP
2007
IEEE
16 years 8 months ago
2007
IEEE
We present a novel expert-model of Query-Driven Locally Adaptive (QDLA) Fisher faces for robust face recognition. For each query face, the proposed method first fits local Fisher ...
169
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KDD
2006
ACM
16 years 6 months ago
2006
ACM
Contextual text mining is concerned with extracting topical themes from a text collection with context information (e.g., time and location) and comparing/analyzing the variations...
179
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GECCO
2005
Springer
16 years 1 hour ago
2005
Springer
The paper presents an extension of Vose’s Markov chain model for genetic algorithm (GA). The model contains not only standard genetic operators such as mutation and crossover bu...
163
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ICNP
2003
IEEE
15 years 11 months ago
2003
IEEE
Peer-to-peer systems have quickly become a popular way for file sharing and distribution. In this paper, we focus on the subsystem consisting of peers and their actions relative ...