The open world assumption makes OWL principally suitable to handle incomplete knowledge in Semantic Web scenarios, however, some scenarios desire closed world reasoning. Autoepistemic description logics allow to realise closed world reasoning in open world settings through epistemic operators. An extension of OWL by epistemic operators therefore allows for non-monotonic features known from clos...

Our system represents the semantic structures of query and documents as graphs consisting of vertices as words and phrases and edges as dependency relations. Based on these semantic structures, the system provides the user with hints on how to revise his query. Preliminary experiments suggest that the system would reduce the user’s time and effort for retrieving suitable documents. We will pres...

This paper summarizes the extension of the theory of lexical-functional grammar to include a formal, model-theoretic, semantics. The algorithmic specification of the semantic interpretation procedures is order-free which distinguishes the system from other theories providing model-theoretic interpretation for natural language. Attention is focused on the computational advantages of a semantic i...

We discuss Feature Latent Semantic Analysis (FLSA), an extension to Latent Semantic Analysis (LSA). LSA is a statistical method that is ordinarily trained on words only; FLSA adds to LSA the richness of the many other linguistic features that a corpus may be labeled with. We applied FLSA to dialogue act classification with excellent results. We report results on three corpora: CallHome Spanish,...

In this paper, we present an abstract conceptual architecture for semantic web services. We define requirements on the architecture by analyzing a set of case studies developed as part of the EU Semantic Webenabled Web Services project. The architecture is developed as a refinement and extension of the W3C Web Services Architecture. We assess our architecture against the requirements, and provi...

We present a framework for augmenting data sets from the Universal Dependencies project with Universal Decompositional Semantics. Where the Universal Dependencies project aims to provide a syntactic annotation standard that can be used consistently across many languages as well as a collection of corpora that use that standard, our extension has similar aims for semantic annotation. We describe...

Current knowledge about the early phases of ontology construction is insufficient to support methods and techniques for a collaborative construction of a conceptualization. Following an approach inspired in cognitive semantics, the application and extension of the Conceptual Blending Theory (CBT) to the realm of collaborative semantic tools is proposed. A formal framework is presented together ...

Eden is a parallel extension of the functional language Haskell. On behalf of parallelism Eden overrides Haskell’s pure lazy approach, combining a non-strict functional application with eager process creation and eager communication. We desire to investigate alternative semantics for Eden in order to analyze the consequences of some of the decisions adopted during the language design. In this p...

Semantic network editor, DEBVisDic [1], has been used to create more than 20 national wordnets. The editor was developed in Mozilla Development Platform, as the extension for Mozilla-based web browsers. However, the development of the web-related technologies took a step from the browser-based extensions to rich web applications, usable in any browser. We decided to rewrite the editor from scra...