Algimantas Rudzionis

DfA implementations for people with vision and hearing disabilities: application and development for information society

This paper presents activities and challenges when implementing information processing technologies for people with hearing and visual impairments. Other than keyboard based input and monitor based for output modalities should be employed for this category of users. More important is that these modalities are crucial element for successful implementation of complex systems designed for disabled people. Some activities carried on in Lithuania implementing applications oriented for disabled people or using speech technologies and targeted to impaired people are presented too.

Advances on the use of the foreign language recognizer

This paper presents our most recent activities trying to adapt the foreign language based speech recognition engine for the recognition of the Lithuanian speech commands. As presented in our earlier papers the speakers of less popular languages (such as the Lithuanian) have several choices: to develop own speech recognition engines or to try adapting the speech recognition models developed and trained for the foreign languages to the task of recognition of their native spoken language. The second approach can lead to the faster implementation of the Lithuanian speech recognition modules into some practical tasks but the proper adaptation and optimization procedures should be found and investigated. This paper presents our activities trying to improve the recognition of Lithuanian voice commands using multiple transcriptions per command and English recognizer.

Analysis of the Possibilities to Adapt the Foreign Language Speech Recognition Engines for the Lithuanian Spoken Commands Recognition

This paper presents our activities trying to adapt the foreign language based speech recognition engine for the recognition of the Lithuanian speech commands. The speakers of less popular languages (such as the Lithuanian) have several choices: to develop own speech recognition engines or to try adapting the speech recognition models developed and trained for the foreign languages to the task of recognition of their native spoken language. The first approach is expensive in time, financial and human resources sense. The second approach can lead to the faster implementation of the Lithuanian speech recognition modules into some practical tasks but the proper adaptation and optimization procedures should be found and investigated. This paper presents some of our efforts trying to adapt the foreign language oriented speech recognition engines for the recognition of the Lithuanian speech commands for the speaker-independent applications. The experimental investigation shows that the promising results could be achieved with relatively modest investments.

On the Adaptation of Foreign Language Speech Recognition Engines for Lithuanian Speech Recognition

This paper presents some of our activities trying to adapt the foreign language based speech recognition engines for the recognition of the Lithuanian speech commands. In recent years several quiet successful speech recognition engines became available for the most popular languages (such as English, French, Spanish, German, etc.). The speakers of a less widely used languages (such as Lithuanian) have several choices: to develop own speech recognition engines or to try adapting speech recognition models developed and trained for the foreign languages to the task of recognition of their native spoken language. First approach is expensive in time, financial and human resources sense. Second approach can lead to faster implementation of Lithuanian speech recognition modules into some practical tasks but proper adaptation and optimization procedures should be found and investigated.

Voice Controlled Interface for the Medical-Pharmaceutical Information System

This paper describes our efforts developing the voice controlled interface for the medical- pharmaceutical information system. It is well known that voice controlled interfaces are of particular importance and may provide significant convenience for healthcare professionals. Many international IT companies provide speech processing by using tools oriented at the physicians or at other professionals working in the related areas. Lithuanian professionals feel a significant lack of speech processing since there are still no attempts to integrate Lithuanian speech processing into medical information systems in this country. The paper presents several IS under development for the use in Lithuanian healthcare institutions. The experimental evaluation shows that it is possible to achieve recognition accuracy (at least 95% of correct recognition) acceptable for the practitioners. The evaluation of system prototypes shows that voice interfaces may lead to the increased convenience of IT systems at the healthcare practitioners.