Analogies between Pattern Recogn i t ion and St ati stacal Communication Theory are pointed out. With the relat ive entropy between the "ideal a t t r i ­ bute" and "heuristic at t r ibute" sets as an index of performance, optimum selection of possible heur i s t i c operators resuJ ts in a recognition deci­ sion in probabi l i t ty , with t he smallest possi ble average number of tests during ...

1Department of Neurological Surgery, Saint Louis University, St. Louis, Missouri; 2Division of Pediatric Neurological Surgery, Goryeb Children’s Hospital, Morristown, New Jersey; 3Department of Neurosurgery, University of Tennessee Health Science Center, and 4Le Bonheur Children’s Hospital, Memphis, Tennessee; 5De ­ part ment of Pediatric Neurosurgery, Massachusetts General Hos­ pital, Boston, ...

Aside from this dif ference in emphasis, KL-ONE and HPRL contain a similar set of representat ion tools. The init ial representation components were both developed at approximately the same time 1977. Cur ren t l y KL-ONE is being extended to allow for the expression of logical relations among elements in a separate syntax (Brachman and Levesque, 1982). HPRL has gone the route described in this...

This work is relevant to the field of Ontology Learning, which investigates automatic and semiautomatic techniques for the con str u ct ion of on t ologies. Gen er a lly, constr uct ion of ontologies has two types of problems, a modeling problem and a r epresentation pr oblem. This ar ticle proposes a technique that br ings in the solution of the first type of prob...

We investigate the steady and transient shear and extensional rheological properties of a series of model hydrophobically modified ethoxylate-urethane (HEUR) polymers with varying degrees of hydrophobicity. A new nonlinear two-species network model for these telechelic polymers is described which incorporates appropriate molecular mechanisms for the creation and destruction of elastically-activ...

Some re lat ive ly simple concepts have been developed which, when incorporated into existing automatic theorem proving programs (including those using resolut ion), enable them to prove e f f i c ien t l y a number of the l im i t theorems of elementary calculus, including the theorem that d i f f e r e n t i a t e functions are con­ tinuous. These concepts include: (1) A l imited theory of ty...

We show how node ordering can be combined with parallel window search to quickly find a nearly optimal solution to single-agent problems. First, we show how node ordering by maximum g among nodes with equal / = g + h values can improve the performance of IDA*. We then consider a window search where different processes perform IDA* simultaneously on the same problem but with different cost thres...

Abst r a ct This paper ut ilises t he Crit ical Syst em s Heur ist ics (CSH) fram ew ork dev eloped by Werner Ulrich t o crit ically consider t he st akeholder s and design goals t hat should be consider ed as r elevant by researchers conducing Design Science Resear ch (DSR). CSH provides a philosophically and t heoret ically gr ounded fram ework and m eans for crit ical considerat ion of t he ...

Web applica t ions should be usable in order t o be accepted by users and to improve th e ir success probability. Despite the fact tha t th is requirem ent has promoted th e em ergence of severa l usability eva lua t ion methods, there is a need for empir ica lly valida ted methods that provide evidence about their effect iveness and tha t can be proper ly in tegra ted in to ea r ly stages of W...

The use of biological fluids such as saliva and cervical mucus as diagnostics for measurements of health status is becoming increasingly popular in the fields of biology and medecine, particularly given the non-invasiveness and ease of obtaining such fluids [39, 78]. In general, these biological fluids are polymeric, and as a result tend to be viscoelastic. However, as a result of protease and ...