Download Graph-Based Representation and Reasoning: 21st International by Nathalie Hernandez, Robert Jäschke, Madalina Croitoru PDF

By Nathalie Hernandez, Robert Jäschke, Madalina Croitoru

This publication constitutes the lawsuits of the twenty first foreign convention on Conceptual constructions, ICCS 2014, held in Iaşi, Romania, in July 2014. The 17 standard papers and six brief papers provided during this quantity have been conscientiously reviewed and chosen from forty and 10 submissions, respectively. the themes coated are: conceptual buildings, wisdom illustration, reasoning, conceptual graphs, formal inspiration research, semantic net, details integration, computing device studying, info mining and knowledge retrieval.

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Additional info for Graph-Based Representation and Reasoning: 21st International Conference on Conceptual Structures, ICCS 2014, Iaşi, Romania, July 27-30, 2014, Proceedings

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Ben-Naim In [2] a comprehensive study has been made on the family of logics described in this section. It has been shown that when an argumentation system satisfies two key properties, then there is a full correspondence between the naive extensions of the system and the maximal consistent subbases of the knowledge base. More formally: Postulates 1 (Closure under sub-arguments – Consistency). Let T = (Arg(Σ), R) be an argumentation system over a knowledge base Σ. For all E ∈ Ext(T ), – if a ∈ E, then Sub(a) ⊆ E.

A formula is ranked higher than another formula if it is supported by an argument which is more acceptable than any argument supporting the second formula. 24 J. Ben-Naim Definition 9 (Ranked conclusions). Let T = (Arg(Σ), R) be an argumentation system over a knowledge base Σ. The output of T is the pair Output(T ) = C, such that: C = {Conc(a) | a ∈ Arg(Σ)} x y iff ∃a ∈ Arg(Σ) such that Conc(a) = x and ∀b ∈ Arg(Σ) such that Conc(b) = y, a, b ∈ Bbs(T ). Unlike certain well-known inconsistency-tolerating logics (like the the 3 and 4 valued ones [4,6]), the above logics satisfy the following crucial property: if the premises are consistent, the conclusions coincide with those of CN.

G. a disease we want to diagnose). The better our knowledge of this regulatory network is, the better we can assess how much independent evidence a set of observations provide. 3 The Question of Computational Tractability A second implication of the increasing complexity of available data is that many tasks which were almost trivial for transactional databases get intractable for networked data. One prototypical example is the problem of pattern matching. The pattern matching operator which is most widely studied in the field of graph mining is subgraph isomorphism.

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