Moving beyond descriptive models: Research issues for design and implementation

Descriptive Research Design

Descriptive Research Design

Design and Implementation Issues

The early 1970s were a time of great optimism for researchers in the field of medical artificial intelligence. The initial successes of systems such as MYCIN, CASNET, and the Leeds abdominal pain system made it reasonable to assume that it was only a matter of time until computers became a standard part of physicians’ diagnostic armamentarium. Over the past few years, the emphasis in clinical d...

Descriptive Research Design

Using Hybrid HMM/BN Acoustic Models: Design and Implementation Issues

In recent years, the number of studies investigating new directions in speech modeling that goes beyond the conventional HMM has increased considerably. One promising approach is to use Bayesian Networks (BN) as speech models. Full recognition systems based on Dynamic BN as well as acoustic models using BN have been proposed lately. Our group at ATR has been developing a hybrid HMM/BN model, wh...