Shape trackers using low level features (e.g., edge points) often fail in complex environments (e.g. clutter, inner edges or multi-objects). Two alternatives are discussed in this paper. Both methods use middle level features: (data centroids, strokes), which are more informative and reliable than edge transitions used in most shape trackers. Furthermore, it is assumed that each middle level fe...

We report results from using language model confidence measures based on the degree of backoff used in a trigram language model. Both utterance-level and wordlevel confidence metrics proved useful for a dialog manager to identify out-of-domain utterances. The metric assigns successively lower confidence as the language model estimate is backed off to a bigram or unigram. It also bases its estim...

Humans can readily assess their degree of confidence in their decisions. Two models of confidence computation have been proposed: post hoc computation using post-decision variables and heuristics, versus online computation using continuous assessment of evidence throughout the decision-making process. Here, we arbitrate between these theories by continuously monitoring finger movements during a...

BACKGROUND Screening for colorectal cancer is effective in family members with a high risk of this condition, owing to single gene mutations. However, it is not known which is the most effective method of ascertaining these families at high risk. AIMS To investigate whether a case-finding approach using computerised general practitioner (GP) registers would improve the ascertainment of famili...

a bioequivalence study of two verapamil formulations (generic verapamil tablets and isoptin® tablets) was performed by comparing pharmacokinetic parameters of the parent drug and its major metabolite, norverapamil following a single dose administration of 80 mg verapamil hydrochloride in 22 healthy volunteers according to a randomized, two-period, crossover-design study. moreover, the feasibili...