Intuitionistic Fuzzy Sets Theory is based on a wrong nominalistic (terminological) assumption. It is defined as “intuitionistic” a negation which does not satisfy usual properties of the intuitionistic Brouwer negation, but it is called with this term only a particular generalized notion of negation which indeed corresponds to the de Morgan negation. This metatheoretical assumption is criticize...

In this paper we present a description of negation cues and their scope in biomedical texts, based on the cues that occur in the BioScope corpus. We provide information relative to the ambiguity of the negation cue and to the type of scope, as well as examples. We show that the scope depends mostly on the part-of-speech of the cue and on the syntactic features of the clause. Although several st...

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We propose a scheme for explicitly modeling and representing negation of word n-grams in an augmented word n-gram feature space. For the purpose of negation scope detection, we compare 2 methods: the simpler regular expression-based NegEx, and the more sophisticated Conditional Random Field-based LingScope. Additionally, we capture negation implicitly via word biand trigrams. We analyze the imp...

Although the performance of SMT systems has improved over a range of different linguistic phenomena, negation has not yet received adequate treatment. Previous works have considered the problem of translating negative data as one of data sparsity (Wetzel and Bond (2012)) or of structural differences between source and target language with respect to the placement of negation (Collins et al. (20...

We propose a constructive discursive logic with strong negation CDLSN based on Nelson’s constructive logic N as a constructive version of Jaśkowski’s discursive logic. In CDLSN, discursive negation is defined similar to intuitionistic negation and discursive implication is defined as material implication using discursive negation. We give an axiomatic system and Kripke semantics with a complete...

Negation in information processing is an important notion, especially in fuzzy information processing. How to cognize and deal with various negations of fuzzy information, a new fuzzy set FSCOM with contradictory negation, opposite negation and medium negation was presented in [1]. This paper defines fuzzy degree and similarity measure of fuzzy set FSCOM, gives some properties and calculation f...

In the paper “Which concept lattices are pseudocomplemented?” ([GK05]) we gave a contextual characterization of pseudocomplemented concept lattices by means of the arrow relations. In this contribution we use this description to embed finite semilattices into pseudocomplemented semilattices. This process can be used to define a negation on concepts.

This paper deals with logic programs containing two kinds of negation: negation as failure and explicit negation, allowing two diierent forms of uncertainty reasoning in the presence of incomplete information. Such programs have been introduced by Gelfond and Lifschitz and called extended programs. We provide them with a logical semantics in the style of Kunen, based on Belnap's four-valued log...

The current paper presents an approach for analyzing the Electronic Health Records (EHRs) with the goal of automatically identifying morphologic negation such that swapping the truth values of concepts introduced by negation does not interfere with understanding the medical discourse. To identify morphologic negation we propose the RoPreNex strategy that represents the adaptation of our PreNex ...