Sciweavers

2736 search results - page 193 / 548
» Indexing uncertain data
Sort
View
SIGMOD
2007
ACM
232views Database» more  SIGMOD 2007»
16 years 6 months ago
BLINKS: ranked keyword searches on graphs
Query processing over graph-structured data is enjoying a growing number of applications. Keyword search on a graph finds a set of answers, each of which is a substructure of the ...
Haixun Wang, Hao He, Jun Yang 0001, Philip S. Yu
IDEAS
2005
IEEE
113views Database» more  IDEAS 2005»
16 years 2 days ago
On the Intersection of XPath Expressions
— XPath is a common language for selecting nodes in an XML document. XPath uses so called path expressions which describe a navigation path through semistructured data. In the la...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
ESWA
2007
151views more  ESWA 2007»
15 years 6 months ago
A novel feature selection algorithm for text categorization
With the development of the web, large numbers of documents are available on the Internet. Digital libraries, news sources and inner data of companies surge more and more. Automat...
Wenqian Shang, Houkuan Huang, Haibin Zhu, Yongmin ...
CIKM
2010
Springer
15 years 5 months ago
Hypergraph-based multilevel matrix approximation for text information retrieval
In Latent Semantic Indexing (LSI), a collection of documents is often pre-processed to form a sparse term-document matrix, followed by a computation of a low-rank approximation to...
Haw-ren Fang, Yousef Saad
SIAMFM
2011
75views more  SIAMFM 2011»
14 years 9 months ago
Dynamic Hedging of Portfolio Credit Derivatives
As shown by the recent turmoil in credit markets, much remains to be done for the proper risk management of credit derivatives. In particular, the static copula-based models commo...
Rama Cont, Yu Hang Kan