Babelfy is a software

algorithm In mathematics and computer science, an algorithm () is a finite sequence of rigorous instructions, typically used to solve a class of specific problems or to perform a computation. Algorithms are used as specifications for performing ...

for the disambiguation of text written in any language. Specifically, Babelfy performs the tasks of

multilingual Multilingualism is the use of more than one language, either by an individual speaker or by a group of speakers. It is believed that multilingual speakers outnumber monolingual speakers in the world's population. More than half of all E ...

Word Sense Disambiguation Word-sense disambiguation (WSD) is the process of identifying which sense of a word is meant in a sentence or other segment of context. In human language processing and cognition, it is usually subconscious/automatic but can often come to consc ...

(i.e., the disambiguation of common nouns, verbs, adjectives and adverbs) and

Entity Linking In natural language processing, entity linking, also referred to as named-entity linking (NEL), named-entity disambiguation (NED), named-entity recognition and disambiguation (NERD) or named-entity normalization (NEN) is the task of assigning a uni ...

(i.e. the disambiguation of mentions to encyclopedic entities like people, companies, places, etc.).A. Moro, A. Raganato, R. Navigli
Entity Linking meets Word Sense Disambiguation: a Unified Approach
Transactions of the Association for Computational Linguistics (TACL), 2, pp. 231-244, 2014.

Overview

Babelfy is based on the

BabelNet BabelNet is a multilingual lexicalized semantic network and ontology developed at the NLP group of the Sapienza University of Rome.R. Navigli and S. P Ponzetto. 2012BabelNet: The Automatic Construction, Evaluation and Application of a Wide-Cove ...

multilingual semantic network and performs disambiguation and entity linking in three steps: * It associates with each

vertex Vertex, vertices or vertexes may refer to: Science and technology Mathematics and computer science *Vertex (geometry), a point where two or more curves, lines, or edges meet * Vertex (computer graphics), a data structure that describes the positio ...

of the BabelNet semantic network, i.e., either

concept Concepts are defined as abstract ideas. They are understood to be the fundamental building blocks of the concept behind principles, thoughts and beliefs. They play an important role in all aspects of cognition. As such, concepts are studied by ...

or named entity, a semantic signature, that is, a set of related vertices. This is a preliminary step which needs to be performed only once, independently of the input text. * Given an input

text Text may refer to: Written word * Text (literary theory), any object that can be read, including: **Religious text, a writing that a religious tradition considers to be sacred **Text, a verse or passage from scripture used in expository preachin ...

, it extracts all the linkable fragments from this text and, for each of them, lists the possible meanings according to the

semantic network A semantic network, or frame network is a knowledge base that represents semantic relations between concepts in a network. This is often used as a form of knowledge representation. It is a directed or undirected graph consisting of vertices, ...

. * It creates a graph-based semantic interpretation of the whole text by linking the candidate meanings of the extracted fragments using the previously computed semantic signatures. It then extracts a dense subgraph of this representation and selects the best candidate meaning for each fragment. As a result, the text, written in any of the 271

language Language is a structured system of communication. The structure of a language is its grammar and the free components are its vocabulary. Languages are the primary means by which humans communicate, and may be conveyed through a variety of ...

s supported by BabelNet, is output with possibly overlapping semantic annotations.

References

External links

* Lexical semantics Semantics Knowledge representation Computational linguistics Artificial intelligence Multilingualism {{semantics-stub

Overview

See also

References

External links