In this paper we describe our system (DTSim) submitted at SemEval-2016 Task 2: Interpretable Semantic Textual Similarity (iSTS). We participated in both gold chunks category (texts chunked by human experts and provided by the task organizers) and system chunks category (participants had to automatically chunk the input texts). We developed a Conditional Random Fields based chunker and applied r...

Semantic relations of different types have played an important role in wordnet, and have been widely recognized in various fields. In recent years, with the growing interests of constructing semantic network in support of intelligent systems, automatic semantic relation discovery has become an urgent task. This paper aims to extract semantic relations relying on the in situ morpho-semantic stru...

A semantic web is expected to underpin richer, and more automated, forms of interaction than web services and data allow today. However unlike syntactic forms, interpretations cannot be standardized across all potential users, or even be kept constant over time for a specific user. While a semantic web allows users to go beyond the syntax of resources by appealing to meta-resources and, more ex...

Ontologies have been investigated for a while and are being studied as an instrument to enable cross-organizational semantic interoperability. The project BRITE (Business Register Interoperability Throughout Europe) aims at exploring ontologies as an instrument to effectively enable European Business Registers (BRs) to respond to changes imposed on them by European Union laws and new market req...

The process of video indexing determines the quality of video retrieval. We present a modularization of indexing systems in which dependencies of components are made explicit. We stress the impact of human interaction in the architectural scheme, as the semantic gap between automatic abstractions and semantic indices requires human intervention. We discuss the components for efficient indexing,...

In this study we quantify for the first time electrophysiological components associated with incorporating long-term semantic knowledge with visuo-spatial information using two variants of a traditional matrix patterns task. Results indicated that the matrix task with greater semantic content was associated with enhanced accuracy and RTs in a change-detection paradigm; this was also associated ...

Six different talking heads have been evaluated in two consecutive experiments. Two text-to-speech components and three head components have been used. Results from semantic differentials show a clear preference for the most human-like and expressive head. The analysis of the semantic differentials reveals three factors each. These factors show different patterns for the head components. Overal...

In the extensive usage of ontologies envisaged by the Semantic Web there is a compelling need for expressing mappings between the components of heterogeneous ontologies. These mappings are of many different forms and involve the different components of ontologies. State of the art languages for ontology mapping enable to express semantic relations between homogeneous components of different ont...

To date, Semantic Web research has tended to focus on data modelling challenges, at the expense of software architecture and engineering issues. Our empirical analysis shows that implementing Semantic Web technologies creates challenges which can affect the whole application. Standard solutions and best practices for Semantic Web technologies are just emerging. The lack of these has been an obs...