This paper presents an original model-based testing approach that takes a UML behavioral view of the system under test and automatically generates test cases and executable test scripts on the basis of model coverage criteria. This approach is embedded in the LTG model-based testing tool and is currently deployed in domains such as electronic transactions, embedded control software and informat...

Twitter has become more and more an important resource of user-generated data. Sentiment Analysis in Twitter is interesting for many applications and objectives. In this paper, we propose to exploit some features which can be useful for this task; the main contribution is the use of Z-scores as features for sentiment classification in addition to pre-polarity and POS tags features. Our experime...

A trial realization of human-centered navigation for video retrieval is presented in this paper. This system consists of the following functions: (i) multi-modal analysis for collaborative use of multimedia data, (ii) preference extraction for the system to adapt to users' individual demands, and (iii) adaptive visualization for users to be guided to their desired contents. By using these funct...

Malicious Web content poses a serious threat to the Internet, organizations and users. Current approaches to detecting malicious Web content employ high-powered honey clients to scan the Web for potentially malicious pages. These approaches, while effective at detecting malicious content, have the drawbacks of being few and far between, presenting a single snapshot in time of very dynamic pheno...