In advanced knowledge processing, partial information plays an important role in coping with complex data and knowledge. To handle such information, we developed the knowledge representation language (which may be regarded as a deductive object-oriented database language) QUIXOT E. The language has the features of both logic and object-orientation concepts, as well as database features. In this...

objects [ab] Units of measurement [me] Measurements [m] Substances [s] Discrete objects[d] Attributes [at]

The learning of a natural language is considered to be an important aspect of man-machine communication in human language. The methods of the Russian language knowledge representation and acquisition implemented in the experimental understanding system TULIPS-2 are described. These methods provides for understanding utterances that contain words and structures unknown to the system wherther the...

We develop an abstract theory of justifications suitable for describing the semantics of a range of logics in knowledge representation, computational and mathematical logic. A theory or program in one of these logics induces a semantical structure called a justification frame. Such a justification frame defines a class of justifications each of which embodies a potential reason why its facts ar...

This paper contains the consideration of inheritance mechanism in such knowledge representation models as object-oriented programming, frames and object-oriented dynamic networks. In addition, inheritance within representation of vague and imprecise knowledge are also discussed. New types of inheritance, general classification of all known inheritance types and approach, which allows avoiding i...

This paper describes a technique for enabling a speech understanding system to deal with sentences for which some monosyllabic words are not recognized. Such words are supposed to act as mere syntactic markers within the system linguistic domain. This result is achieved by combining a modified caseframe approach to linguistic knowledge representation with a parsing strategy able to integra te e...

The necessity of and means for distinguishing between a level of linguistic meaning and a domain of "factual knowledge" (or cognitive content) are argued for, supported by a survey of relevant operational criteria. The level of meaning is characterized as a safe base for computational applications, which allows for a set of inference rules accounting for the content (factual relations) of a giv...

We present a survey of the results and findings of the research projectWhat makes stories similar? funded by the John Templeton Foundation from October 2011 to May 2014. 1998 ACM Subject Classification H.1.m Models and Principles: Miscellaneous, H.3.1 Content Analysis and Indexing, I.2.7 Natural Language Processing, I.2.4 Knowledge Representation Formalisms and Methods, J.4 Social and Behaviora...