We describe a method for obtaining subject-dependent word sets relative to some (subjecO domain. Using the subject classifications given in the machine-readable version of Longman's Dictionary of Contemporary English, we established subject-dependent cooccurrence links between words of the defining vocabulary to construct these "neighborhoods". Here, we describe the application of these neighbo...

One of the problems in converting a conventional (human-oriented) explanatory dictionary into a semantic database intended for the use in automatic reasoning systems is that such a database should not contain any cycles in its definitions, while the traditional dictionaries usually contain them. The cycles can be eliminated by declaring some words “primitive” (having no definition) while all ot...

We describe an extensive and versatile lexical resource for Latvian, an under-resourced Indo-European language, which we call Tezaurs (Latvian for ‘thesaurus’). It comprises a large explanatory dictionary of more than 250,000 entries that are derived from more than 280 external sources. The dictionary is enriched with phonetic, morphological, semantic and other annotations, as well as augmented...

We present a hybrid genetic meta-algorithm that while applying a standard näıve genetic algorithm attempts to concurrently evolve a presentation of the genetic information that makes simple single-point crossovers increasingly effective. The idea is to attach positional information to genes and evolve them also by crossover and mutation, resulting in a presentation in which successful schema ha...

There was an elegant expression for the volume of hypercube [0, 1] clipped by a hyperplane. We generalize the formula to the case of more than one hyperplane. Furthermore we derive several combinatorial identities from the volume expressions of clipped hypercubes.