Estonian speech-driven PC-interface for disabled persons

There exists already a pretty useful recognizer for Estonian numerals (Alumäe et al. 2004). There is also a long way to the next stage – full Estonian natural language speech recognizer. At the Rehabilitation Technologies laboratory of TUT we suggest to use this number recognizer to build different limited vocabulary driven but flexible and general enough input and control systems for Disabled Persons. We work in three directions. Disabled persons have often not the best possible pronounciation, so one has to build a system which can work with a lot of background and inner noise. Another direction is to build an agile table-driven 3-layer control system according to Kolmogorov-Vilenkin superposition theorem. We try also to implement a general table-driven interface description system using the finite state machine method and its very effective implementation in J-language. The solutions have to be general enough to handle easily very different disabilities needs and allow such systems not to be so expensive. In our talk we will give an overview and demonstrate our solution prototypes.6 page(s

Temporal scales for transport patterns in the Gulf of Finland

The basic time scales for current-induced net transport of surface water and associated time\ud scales of reaching the nearshore in the Gulf of Finland, the Baltic Sea, are analysed based on\ud Lagrangian trajectories of water particles reconstructed from three-dimensional velocity fields by the\ud Rossby Centre circulation model for 1987–1991. The number of particles reaching the nearshore\ud exhibits substantial temporal variability whereas the rate of leaving the gulf is almost steady. It is\ud recommended to use an about 3 grid cells wide nearshore area as a substitute to the coastal zone and\ud about 10–15 day long trajectories for calculations of the probability of reaching the nearshore. An\ud appropriate time window for estimates of the properties of net transport patterns is 4–10 days