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DGO
2003
128views Education» more  DGO 2003»
15 years 9 months ago
A Study on Automatic Ontology Mapping of Categorical Information
Semantic heterogeneity of information is a major barrier of information and system interoperability. Defining ontology of data and mapping ontologies among heterogeneous informati...
Naijun Zhou
IPSJ
1994
138views more  IPSJ 1994»
15 years 9 months ago
The TSIMMIS Project: Integration of Heterogeneous Information Sources
The goal of the Tsimmis Project is to develop tools that facilitate the rapid integration of heterogeneous information sources that may include both structured and unstructured da...
Sudarshan S. Chawathe, Hector Garcia-Molina, Joach...
INTR
2007
98views more  INTR 2007»
15 years 7 months ago
User-centered evaluation of information: a research challenge
Purpose – This paper sets out to present the concept of the value of information, review the descriptive, rational, social and behavioral approaches for assessing the value of i...
Daphne R. Raban
ICDE
2012
IEEE
238views Database» more  ICDE 2012»
13 years 10 months ago
Mining Knowledge from Data: An Information Network Analysis Approach
Abstract—Most objects and data in the real world are interconnected, forming complex, heterogeneous but often semistructured information networks. However, many database research...
Jiawei Han, Yizhou Sun, Xifeng Yan, Philip S. Yu
CIKM
2009
Springer
16 years 2 months ago
The effect of negation on sentiment analysis and retrieval effectiveness
We investigate the problem of determining the polarity of sentiments when one or more occurrences of a negation term such as “not” appear in a sentence. The concept of the sco...
Lifeng Jia, Clement T. Yu, Weiyi Meng