19 search results - page 4 / 4 » UMBC at TREC 12 |
IPM
2008
13 years 5 months ago
2008
ct 9 In this paper, a new novelty detection approach based on the identification of sentence level information patterns is 10 proposed. First, ``novelty'' is redefined ba...
SIGIR
2006
ACM
13 years 11 months ago
2006
ACM
Classical query expansion techniques such as the local context analysis (LCA) make use of term co-occurrence statistics to incorporate additional contextual terms for enhancing pa...
SIGIR
2004
ACM
13 years 11 months ago
2004
ACM
Noun phrases in queries are identified and classified into four types: proper names, dictionary phrases, simple phrases and complex phrases. A document has a phrase if all content...
SIGIR
2008
ACM
13 years 5 months ago
2008
ACM
Blog feed search poses different and interesting challenges from traditional ad hoc document retrieval. The units of retrieval, the blogs, are collections of documents, the blog p...