Sciweavers

645 search results - page 87 / 129
» The Data Warehouse of Newsgroups
Sort
View
COLING
2002
13 years 8 months ago
Automatic Text Categorization using the Importance of Sentences
Automatic text categorization is a problem of automatically assigning text documents to predefined categories. In order to classify text documents, we must extract good features f...
Youngjoong Ko, Jinwoo Park, Jungyun Seo
ICFCA
2009
Springer
13 years 6 months ago
A Concept Lattice-Based Kernel for SVM Text Classification
Abstract. Standard Support Vector Machines (SVM) text classification relies on bag-of-words kernel to express the similarity between documents. We show that a document lattice can ...
Claudio Carpineto, Carla Michini, Raffaele Nicolus...
EDBT
2009
ACM
131views Database» more  EDBT 2009»
14 years 4 days ago
Sample synopses for approximate answering of group-by queries
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
Philipp Rösch, Wolfgang Lehner
SIGMOD
2011
ACM
221views Database» more  SIGMOD 2011»
12 years 11 months ago
Scalable query rewriting: a graph-based approach
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
George Konstantinidis, José Luis Ambite
IFIP8
2007
13 years 10 months ago
Grid-VirtuE: A Layered Architecture for Grid Virtual Enterprises
A grid virtual enterprise is a community of independent enterprises concerned with a particular sector of the economy. Its members (nodes) are small or medium size enterprises (SME...
Alfredo Cuzzocrea, Alessandro D'Atri, Andrea Gualt...