The work presented in this paper aims to combine Latent Semantic Analysis methodology, common sense and traditional knowledge representation in order to improve the dialogue capabilities of a conversational agent. In our approach the agent brain is characterized by two areas: a "rational area", composed by a structured, rule-based knowledge base, and an "associative area", obtained through a data-driven semantic space. Concepts are mapped in this space and their mutual geometric distance is related to their conceptual similarity. The geometric distance between concepts implicitly defines a sub-symbolic relationship net, which can be seen as a new "subsymbolic semantic layer" automatically added to the Cyc ontology. Users queries can also be mapped in the same conceptual space, and evoke similar ontology concepts. As a result the agent can exploit this feature, attempting to retrieve ontological concepts that are not easily reachable by means of the traditional ontology reasoning engine.

GIOVANNI PILATO, AGNESE AUGELLO, GIORGIO VASSALLO, GAGLIO S (2007). Sub-Symbolic Semantic Layer in Cyc for Intuitive Chat-Bots. In Proc. of the 1st International Conference on Semantic Computing (pp.121-128). PISCATAWAY, NJ 08855-1331 : IEEE [10.1109/ICOSC.2007.4338340].

Sub-Symbolic Semantic Layer in Cyc for Intuitive Chat-Bots

AUGELLO, Agnese;VASSALLO, Giorgio;GAGLIO, Salvatore
2007-01-01

Abstract

The work presented in this paper aims to combine Latent Semantic Analysis methodology, common sense and traditional knowledge representation in order to improve the dialogue capabilities of a conversational agent. In our approach the agent brain is characterized by two areas: a "rational area", composed by a structured, rule-based knowledge base, and an "associative area", obtained through a data-driven semantic space. Concepts are mapped in this space and their mutual geometric distance is related to their conceptual similarity. The geometric distance between concepts implicitly defines a sub-symbolic relationship net, which can be seen as a new "subsymbolic semantic layer" automatically added to the Cyc ontology. Users queries can also be mapped in the same conceptual space, and evoke similar ontology concepts. As a result the agent can exploit this feature, attempting to retrieve ontological concepts that are not easily reachable by means of the traditional ontology reasoning engine.
Settore ING-INF/05 - Sistemi Di Elaborazione Delle Informazioni
1st International Conference on Semantic Computing
Irvine, California
17-19 Sep 2007
2007
GIOVANNI PILATO, AGNESE AUGELLO, GIORGIO VASSALLO, GAGLIO S (2007). Sub-Symbolic Semantic Layer in Cyc for Intuitive Chat-Bots. In Proc. of the 1st International Conference on Semantic Computing (pp.121-128). PISCATAWAY, NJ 08855-1331 : IEEE [10.1109/ICOSC.2007.4338340].
Proceedings (atti dei congressi)
GIOVANNI PILATO; AGNESE AUGELLO; GIORGIO VASSALLO; GAGLIO S
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/7771
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