The amount of multimedia data is increasing every day and there is a growing demand for high-accuracy multimedia retrieval systems that go beyond retrieving simple events (e.g., detecting a sport video), to more specific and hard-to-detect events (e.g., a point in a tennis match). To retrieve these complex events, audio content features play an important role since they provide complementary in...

This paper considers the use of logic-based languages for multiagent negotiation. We begin by motivating the use of such languages, and introducing a formal model of logic-based negotiation. Using this model, we define two important computational problems: the success problem (given a particular negotiation history, has agreement been reached?) and the guaranteed success problem (does a particu...

In this paper we report on the work we performed to extend the logic model checker SPIN with builtin support for the verification of periodic, real-time embedded software systems, as commonly used in aircraft, automobiles, and spacecraft. We first extended the SPIN verification algorithms to model priority based scheduling policies. Next, we added a library to support the modeling of periodic t...

As a popular rank-reduced vector space approach, Latent Semantic Indexing (LSI) has been used in information retrieval and other applications. In this paper, an LSI-based content vector model for text classification is presented, which constructs multiple augmented category LSI spaces and classifies text by their content. The model integrates the class discriminative information from the traini...

For the past 10 years it has become clear that biological movement is made up of sub-routine type blocks, or motor primitives, with a central controller timing the activation of these blocks, creating synergies of muscle activation. This paper shows that it is possible to use a factorial hidden Markov model to infer primitives in handwriting data. These primitives are not predefined in terms of...

ERW is an innovative open-source system for handling complex databases using a web browser. Once the details of an enhanced entity-relationship schema have been specified in XML, ERW generates a complete application that lets the user interact with the database. Then, specification percolation makes it possible to customise heavily the application while maintaining the flexibility of a model-dr...

To Find user’s frequent interest navigation patterns, we combine the information of web content and web server log, mine the web data to build a hidden markov model. In our approach, we build a hidden markov model according to page’s content and web service log firstly, and then we present a new incremental discovery algorithm Hmm_R to discover the interest navigation patterns. ...

Online communities suffer from the 1-9-90 principle, which states that 1% of the community's user base generates original content, an additional 9% is limited to interacting with existing content, while the remaining 90% of the participants is passively lurking. In this work we present a data-driven stochastic framework that estimates (1) the activation potential (i.e., the users that are curre...

1. Motivation and Introduction Information and communication technology not only provides new kinds of content, but also new designs for the production, packaging, multiplying and distribution of it. As a consequence , novel business models are possible where new actors are involved in various processes along the value chain. This paper contributes to the discussion of the impact of technology ...