447 search results - page 40 / 90 » Probabilistic model for contextual retrieval |
ICDM
2007
IEEE
14 years 2 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...
IPM
2007
13 years 7 months ago
2007
In the KL divergence framework, the extended language modeling approach has a critical problem estimating a query model, which is the probabilistic model that encodes user’s inf...
SIGIR
2003
ACM
14 years 29 days ago
2003
ACM
Libraries have traditionally used manual image annotation for indexing and then later retrieving their image collections. However, manual image annotation is an expensive and labo...
SIGIR
2005
ACM
14 years 1 months ago
2005
ACM
This paper presents a new discriminative model for information retrieval (IR), referred to as linear discriminant model (LDM), which provides a flexible framework to incorporate a...
IJCV
2008
13 years 7 months ago
2008
We develop hierarchical, probabilistic models for objects, the parts composing them, and the visual scenes surrounding them. Our approach couples topic models originally developed...