8311 search results - page 174 / 1663 » Phase-Based Information Retrieval |
CBMS
2007
IEEE
14 years 4 months ago
2007
IEEE
This paper focuses on the problem of representing, in a meaningful way, the knowledge involved in the HealthAgents project. Our work is motivated by the complexity of representing...
ICDM
2007
IEEE
14 years 4 months ago
2007
IEEE
Most topic models, such as latent Dirichlet allocation, rely on the bag-of-words assumption. However, word order and phrases are often critical to capturing the meaning of text in...
ICMCS
2006
IEEE
14 years 4 months ago
2006
IEEE
Image retrieval has been widely used in many fields of science and engineering. The semantic concept of user interest is obtained by a learning process. Traditional techniques oft...
ICALP
2005
Springer
14 years 3 months 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...
IJCNLP
2004
Springer
14 years 3 months ago
2004
Springer
In this paper, a series of window-based methods is proposed for information retrieval. Compared with traditional tf-idf model, our approaches are based on two new key notions. The ...