The aim of this paper is to propose a logical way to handle uncertain knowledge and change. Databases, diagnostic, planiication, taxonomy are some of the domains concerned by this problem. This paper focuses on the means Linear Logic ooers to represent taxonomical networks and to perform updates of databases containing incomplete information. The two problems are rst expressed in graph theory: ...

This paper presents the development of XKey, a tool for generating taxonomical identification keys by means of decision tree construction. The tool is based on an XML standard for the representation of general taxonomical information, which makes it ideal for different fields of application. The article analyses the problem by examining the adaptation of machine learning techniques to the spher...

At least two kinds of relations exist among related words: taxonomical relations and thematic relations. Both relations identify related words useful to language understanding and generation, information retrieval, and so on. However, although words with taxonomical relations are easy to identify from linguistic resources such as dictionaries and thesauri, words with thematic relations are diff...

In this paper, we combine MOF-based software representations and description logic-based mechanisms for facilitating software reuse. All software representations (requirements specifications, design models, code) arising from one project are combined in a software case and stored in a repository for later retrieval. For reuse purposes, we use requirements as search indexes. We map metamodel-bas...

The metagenomic method directly sequences and analyses genome information from microbial communities. The main computational tasks for metagenomic analyses include taxonomical and functional structure analysis for all genomes in a microbial community (also referred to as a metagenomic sample). With the advancement of Next Generation Sequencing (NGS) techniques, the number of metagenomic samples...

MOTIVATION When targeted to a barcoding region, high-throughput sequencing can be used to identify species or operational taxonomical units from environmental samples, and thus to study the diversity and structure of species communities. Although there are many methods which provide confidence scores for assigning taxonomic affiliations, it is not straightforward to translate these values to un...

Comparative taxonomical and phytochemical studies of B diffusa ands B. verticillata are described in this article.