George Stylios

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A document understanding system has been developed, AMDS_hw, which is based on the synergy of English grammar parsing with sentence clustering and reduction. The system is capable of producing a summary of single or multiple documents, but the present study only focuses on multi-document summary and hence has participated in DUC2003 evaluations under the(More)
Automatic document summarization is a highly interdisciplinary research area related with computer science as well as cognitive psychology. Here, we introduce an intelligent algorithm, the event indexing and summarization (EIS) algorithm, for automatic document summarization, which is based on taking into account a cognitive psychological model, the(More)
Electrospinning is a unique way to producing novel polymer nano fibres with diameter typically in the range from 10 nm to 1500nm. Large length to diameter ratio and small mass to volume ratio of these nano-sizes fibres widens the areas of their application to many industrial uses. Nylon 6 nanofibres with diameter ranging from 150nm to 1300 nm were produced(More)
Web 2.0 has facilitated interactive information sharing on the WWW, allowing users the opportunity to articulate their opinions on different topics. In this framework, certain practices implement information monitoring systems so as digests, reports on keywords and thematic queries regarding opinions on government decisions to be created. Analysis of(More)
This work proposes a bio-inspired based methodology in order to extract and evaluate user's web texts / posts. To validate the methodology, a dataset is constructed using real data arising from Greek fora. The obtained results are compared with a commonly used machine learning technique (decision trees-C4. 5 algorithm). The bio-inspired algorithm(More)
E-government refers to the use of information and communication technologies for improving government services and interactions with citizens. In today's digital information era the successful delivery of public policy is of paramount importance and significantly dependent upon the effective technology deployment. In this respect, many researches and(More)
The growth of Web 2.0 has facilitated interactive information sharing and interoperability on the World Wide Web, allowing users not only to retrieve information, but also the opportunity to interact or articulate their opinions on different topics. Numerous works on various social and political objectives devoted to the formation of open Internet sources(More)
This work aims at additive watermark detection using a hierarchical prior with two levels in the DWT (Discrete Wavelet Transform) domain. Using this prior we construct a new test statistic which exhibits comparable performance with regard to other state of the art methods. The experimental results on known watermark images demonstrates the high detection(More)
This paper introduces a novel approach based on signal processing methods to extract features from speech signals and based on them to detect a specific type of articulation disorders. Articulation, in effect, is the specific and characteristic way that an individual produces the speech sounds. Empirical Mode Decomposition and the Hilbert Huang transform(More)