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പദശൃംഖല

An Online WordNet for Malayalam

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  WordNet is a semantic dictionary that was designed as a network following the idea that representing words and concepts as an interrelated system. WordNet groups words into sets of synonyms and provides short definitions and usage examples, also records a number of relations among these synonym sets or their members.

  WordNet can be seen as a combination of dictionary and thesaurus. WordNet superficially resembles a thesaurus, in that it groups words together based on their meanings. However, there are some important distinctions. First, WordNet interlinks not just word forms,but specific senses of words. As a result, words that are found in close proximity to one another in the network are semantically disambiguated. Second, WordNet labels the semantic relations among words, whereas the groupings of words in a thesaurus does not follow any explicit pattern other than meaning similarity. WordNet's structure makes it a useful tool for computational linguistics and natural language processing.

  Malayalam WordNet പദശൃംഖല is developed by the Department of Computer Science , Cochin University. പദശൃംഖല is developed in such a way that it could be easily used by common people as well as researchers. It works in a controlled crowd sourced manner in which the users would be able to add new words to the WordNet. Also there would be a option to edit existing synsets or adding new relationships. These would also be monitored by a group of users, so that WordNet always remains updated as well as error free. പദശൃംഖല also supports REST services.

  A synonym is a word or phrase that means exactly or nearly the same as another word or phrase in the same language. Words that are synonyms are said to be synonymous, and the state of being a synonym is called synonymy. Synset is a set of synonymous words.

  Each synset is mapped into some places in ontology such as noun, verb, adjective, adverb etc.The POS specifies the Position in Ontology

  Gloss explains the concept denoted by the synset.

Hypernymy and Hyponymy

  Hyponymy / Hypernymy relation is a subordination/ superordination, subset / superset relationship. Hyponymy shows the relationship between the more general terms (hypernyms) and the more specific instances of it (hyponyms). A hyponym is a word or phrase whose semantic field is more specific than its hypernym. The semantic field of a hypernym, also known as a superordinate, is broader than that of a hyponym. Hypernymy is the reverse of hyponymy. A concept represented by the synset (x 1 , x 2 , x 3 ...) is said to be a hyponym of the concept represented by the synset (y 1 , y 2 , y 3 ...) if an x is a kind of y

Meronymy and Holonymy

  If the concepts A and B are related in such a manner that A is one of the constituent of B, then A is the meronym of B and B is the holonym of A. There are three kinds of meronymy.

   1. Proper parts

   2. Substance

   3. Groups/Members

Antonym

  Antonym is a relation that hold with two words that express opposite meanings.

Sumam Mary Idicula
Ph.D.in Computer Science
Professor
Dept of Computer Science, Cusat

Drishya Gopinath
Masters in Computer Science
Software Engineer
Tata Consultancy Services Limited

Varghese K Aniyan
Masters in Computer Science
Software Engineer
Shopalyst Technologies Pvt Ltd

Thanks to

  •   CFILT - Center for Indian Language Technology

  •   TDIL - Technology Development for Indian Languages

  •   C-DAC - Centre for Development of Advanced Computing

  •   Dr. Pushpak Bhattacharyya (Director, IIT Patna)

  •   Dr. K.P. Soman (Head and Professor,Department of Computational Engineering and Networking, Amrita Vishwa Vidyapeetham)

  •   Dr. S. Rajendran (Professor of Linguistics, Department of Computational Engineering and Networking, Amrita Vishwa Vidyapeetham)