This paper focuses on comparing three approaches to improve the accuracy of classifying short-time speech frames into phoneme classes by taking into account the classii-cations of nearby frames, also individually classiied. We investigate whether this improvement has an eeect to the accuracy of transcribing speech into phoneme sequences using two diierent decoding schemes, one based on simple d...

This article is about visualization of modelling steering and decisional processes described by fuzzy IF-THEN rules modified by Petri Nets.

This paper focuses on acoustic modeling in speech recognition. A novel approach how to build grapheme based acoustic models with conversion from existing phoneme based acoustic models is proposed. The grapheme based acoustic models are created as weighted sum from monophone acoustic models. The influence of particular monophone is determined with the phoneme to grapheme confusion matrix. Furthe...

This paper describes a graphical tool used for generating and depicting rule grammars in the Java Speech Grammar Format (JSGF), which has been developed in the framework of the EC-funded research project GEMINI (Generic Environment for Multilingual Interactive Natural Interfaces, IST-2001-32343). A vocabulary builder component that produces the phonetic transcription of the words included in th...

With the globalization more and more words from other languages come into a language without assimilation to the phonetic system of the new language. To economically build up lexical resources with automatic or semi-automatic methods, it is important to detect and treat them separately. Due to the strong increase of Anglicisms, especially from the IT domain, we developed features for their auto...

In this paper we present new results on detection and removal of redundancies of IF-THEN rules in so-called linguistic descriptions (systems of such rules). We introduce an algorithm for removal of redundancies and describe a practical application.

We survey recent developments in the program of generating proof calculi for large classes of axiomatic extensions of a non-classical logics by translating each axiom into a set of structural rules, starting from a base calculus. We will introduce three proof formalisms: the sequent calculus, the hypersequent calculus and the display calculus. The calculi that are obtained derive exactly the th...

This paper presents an experiment in speech recognition whereby multiple phoneme recognisers are applied to the same utterance. When these recognisers agree on an hypothesis for the same time interval, that hypothesis is assumed to be correct. When they are in disagreement, fine-grained phonetic features, called articulatory features, recognised from the same speech utterance are used to create...