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SUTC
2008
IEEE
15 years 6 months ago
Effective Feature Space Reduction with Imbalanced Data for Semantic Concept Detection
Semantic understanding of multimedia content has become a very popular research topic in recent years. Semantic concept detection algorithms face many challenges such as the seman...
Lin Lin, Guy Ravitz, Mei-Ling Shyu, Shu-Ching Chen
KNINVI
2005
Springer
15 years 5 months ago
Digital Concept Maps for Managing Knowledge and Information
Abstract. Due to the increasing amount and complexity of knowledge and information in many domains, students who self-regulate their study in e-learning scenarios often suffer from...
Sigmar-Olaf Tergan
SIGCSE
2004
ACM
84views Education» more  SIGCSE 2004»
15 years 5 months ago
Core empirical concepts and skills for computer science
Educators are increasingly acknowledging that practical problems in computer science demand basic competencies in experimentation and data analysis. However, little effort has bee...
Grant Braught, Craig S. Miller, David W. Reed
FLAIRS
2007
15 years 2 months ago
Contextual Concept Discovery Algorithm
In this paper, we focus on the ontological concept extraction and evaluation process from HTML documents. In order to improve this process, we propose an unsupervised hierarchical...
Lobna Karoui, Marie-Aude Aufaure, Nacéra Be...
CIKM
2008
Springer
15 years 1 months ago
Combining concept hierarchies and statistical topic models
Statistical topic models provide a general data-driven framework for automated discovery of high-level knowledge from large collections of text documents. While topic models can p...
Chaitanya Chemudugunta, Padhraic Smyth, Mark Steyv...