305 search results - page 12 / 61 » Investigating Retrieval Performance with Manually-Built Topi... |
ICML
2006
IEEE
14 years 9 months ago
2006
IEEE
Probabilistic modelling of text data in the bagof-words representation has been dominated by directed graphical models such as pLSI, LDA, NMF, and discrete PCA. Recently, state of...
CIKM
2008
Springer
13 years 10 months ago
2008
Springer
Topic modeling has been a key problem for document analysis. One of the canonical approaches for topic modeling is Probabilistic Latent Semantic Indexing, which maximizes the join...
MM
2005
ACM
14 years 2 months ago
2005
ACM
In this paper we introduce a probabilistic framework to exploit hierarchy, structure sharing and duration information for topic transition detection in videos. Our probabilistic d...
CIKM
2006
Springer
14 years 10 days ago
2006
Springer
The detection of new information in a document stream is an important component of many potential applications. In this work, a new novelty detection approach based on the identif...
IIR
2010
13 years 10 months ago
2010
We study the evaluation of opinion retrieval systems. Opinion retrieval is a relatively new research area, nevertheless classical evaluation measures, those adopted for ad hoc ret...