DEXAW
2007
IEEE
14 years 3 months ago
2007
IEEE
We built a system for the automatic creation of a textbased topic hierarchy, meant to be used in a geographically defined community. This poses two main problems. First, the appea...
CIKM
2004
Springer
14 years 5 months ago
2004
Springer
It is crucial in many information systems to organize short text segments, such as keywords in documents and queries from users, into a well-formed topic hierarchy. In this paper,...
WWW
2004
ACM
15 years 6 days ago
2004
ACM
Organizing Web search results into a hierarchy of topics and subtopics facilitates browsing the collection and locating results of interest. In this paper, we propose a new hierar...
WWW
2007
ACM
15 years 6 days ago
2007
ACM
Hierarchical models are commonly used to organize a Website's content. A Website's content structure can be represented by a topic hierarchy, a directed tree rooted at a...
ICML
2007
IEEE
15 years 10 days ago
2007
IEEE
The four-level pachinko allocation model (PAM) (Li & McCallum, 2006) represents correlations among topics using a DAG structure. It does not, however, represent a nested hiera...