28 research outputs found
Intelligent Systems Memory Structuring
The requirements for the memory structuring of intelligent systems are discussed. Simultaneously
with the introduction of information into memory there should take place the processes of association links
(bonds) formation, hierarchy systematizing, classification and concept formation. The growing pyramidal
networks (GPN) meet these requirements. Many years of experience of GPN application for data analyses in
chemistry and material studies proves their sufficiently high potential
Selfstructurized Systems
The problems of constructing the selfsrtucturized systems of memory of intelligence information
processing tools, allowing formation of associative links in the memory, hierarchical organization and
classification, generating concepts in the process of the information input, are discussed. The principles and
methods for realization of selfstructurized systems on basis of hierarchic network structures of some special class
– growing pyramidal network are studied. The algorithms for building, learning and recognition on basis of such
type network structures are proposed. The examples of practical application are demonstrated
Ontological Approach to Domain Knowledge Representation for Information Retrieval in Multiagent Systems
An ontological representation of buyer interests’ knowledge in process of e-commerce is proposed to
use. It makes it more efficient to make a search of the most appropriate sellers via multiagent systems. An
algorithm of a comparison of buyer ontology with one of e-shops (the taxonomies) and an e-commerce multiagent
system are realised using ontology of information retrieval in distributed environment
Hierarchical Three-level Ontology for Text Processing
The principal feature of ontology, which is developed for a text processing, is wider knowledge
representation of an external world due to introduction of three-level hierarchy. It allows to improve semantic
interpretation of natural language texts
Logical Models of Composite Dynamic Objects Control
The questions of designing multicriteria control systems on the basis of logic models of composite
dynamic objects are considered
Selection of Thematic NL-knowledge from the Internet
The paper deals with methods of choice in the INTERNET of natural-language textual fragments
relevant to a given theme. Relevancy is estimated on the basis of semantic analysis of sentences.
Recognition of syntactic and semantic connections between words of the text is carried out by the analysis of
combinations of inflections and prepositions, without use of categories and rules of traditional grammar.
Choice in the INTERNET of the thematic information is organized cyclically with automatic forming of the new
key at every cycle when addressing to the INTERNET
Absolute negative conductivity in two-dimensional electron systems under microwave radiation
We overview mechanisms of absolute negative conductivity in two-dimensional
electron systems in a magnetic field irradiated with microwaves and provide
plausible explanations of the features observed in recent experiments related
to the so-called zero-resistance (zero-conductance) states.Comment: 4 pages, 7 figures, presented at Internat. Symp. on Functional
Semiconductor Nanosystems, Atsugi, Japan, Nov. 12-14, 2003, be published in
Physica
Flegmonul retroperitoneal recidivant, cauzat de osteomielita tuberculoasă a ilionului. Caz clinic
Infecţiile retroperitoneale sunt situaţii clinice neobişnuite,
asociate cu morbiditate şi mortalitate înalte. Prezenţa
procesului specifi c tuberculos necesită proceduri chirurgicale
suplimentare, cu concursul chirurgului-ftiziatru