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WWW
2011
ACM
15 years 29 days ago
Automatic construction of a context-aware sentiment lexicon: an optimization approach
The explosion of Web opinion data has made essential the need for automatic tools to analyze and understand people’s sentiments toward different topics. In most sentiment analy...
Yue Lu, Malú Castellanos, Umeshwar Dayal, C...
DAGSTUHL
2006
15 years 8 months ago
A Bayesian Reputation System for Virtual Organizations
Abstract. Virtual Organizations (VOs) are an emerging business model in today's Internet economy. Increased specialization and focusing on an organization's core competen...
Jochen Haller
DEXA
2005
Springer
80views Database» more  DEXA 2005»
16 years 23 hour ago
Optimizing I/O Costs of Multi-dimensional Queries Using Bitmap Indices
Bitmap indices are efficient data structures for processing complex, multi-dimensional queries in data warehouse applications and scientific data analysis. For high-cardinality at...
Doron Rotem, Kurt Stockinger, Kesheng Wu
ECIS
2000
15 years 7 months ago
Metadata-Based Integration of Qualitative and Quantitative Information Resources Approaching Knowledge Management
This paper presents a concept for the integration of quantitative and qualitative information sources with their accompanying management support functionalities from navigation and...
Bodo Rieger, Anja Kleber, Eitel von Maur
ICIP
2003
IEEE
16 years 8 months ago
Road network extraction in remote sensing by a Markov object process
In this paper, we rely on the theory of marked point processes to perform an unsupervised road network extraction from optical and radar images. A road network is modeled by a Mar...
Caroline Lacoste, Xavier Descombes, Josiane Zerubi...