Hardware implementation of language resources for embedded systems
Strojna implementacija jezikovnih virov za uporabo v vdelanih sistemih

english

2002

volume 32, issue 3

Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale

A lot of external natural language resources are used in spoken dialogue systems. These resources present considerable problems because of the needed space and slow lookup-time. It is, therefore, very important that the presentation of external language resources is time and space efficient. It is also very important that new language resources are easily incorporated into the system, without modifying the common algorithms developed for multiple languages. This paper presents the method and results of compiling the large Slovenian phonetic and morphology lexicons (Slflex and Slmlex) into corresponding finite-state transducers (FSTs). Representation of large lexicons using finite-state transducers is mainly motivated by considerations of space and time efficiency. In addition the approach of hardware implementation for both large (Slovenian) lexicons is described. We will demonstrate that the structure of the FST is very appropriate for storing in the Atmel AT 49BV161 flash memory chip and the lookup algorithm for obtaining any desired information from the FST structure can be efficiently implemented using the Atmel AT90S8515 microcontroller. The described hardware implementation of both Slovenian lexicons can be connected directly to the PC using RS232 above all for development and test purposes and can be used especially in embedded systems which use speech technology.

18.12.2015