A Corpus-based Study of Persian Noun and Adjective Homographs to help Correct POS Tagging

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ALAYIABOOZAR ELHAM

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Journal: Iranian Journal of Information Processing & Management Year:2019 | Volume:34 | Issue:2 Page(s): 897-922

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Title

A Corpus-based Study of Persian Noun and Adjective Homographs to help Correct POS Tagging

Author(s)

ALAYIABOOZAR ELHAM | Issue Writer Certificate

Keywords

POS Tagger SystemQ1

Morphological Structure of Persian Nouns and AdjectivesQ1

Persian Writing SystemQ1

HomographsQ1

Abstract

Present research studies morphological structure of nouns and adjectives. There are two main reasons for studying them in the process of making any POS Tagger System for tagging nouns: 1. If the system faces an out of vocabulary word (OOV word), one way to identify its tag would be considering its morphological structure; 2. In Persian, lots of Homographs are made due to Persian complex morphology. Studying morphological structure of nouns in order to distinguish them from adjectives seems to be necessary, since many adjectives, having the same orthographic forms of nouns, would be wrongly tagged as “ noun” or vic e versa. After studying morphological structure of nouns and adjectives in present study, Persian Writing System is studied. Then definition of Homographs and the related classifications are presented. Finally, the study uses different famous Persian corpora (including Bijankhan, and syntactical dependency corpus (vabastegi ye nahvi) for searching for Homographs (using search tools) and Data Center for Persian Language (Paygah e Dadegan) whose non-tagged file was available (the Homographs are searched and tagged manually)) to make a list of Homographs. The result of studying the mentioned list showed that the frequency of Homographs, especially those which are made due to identical orthographic form of indefinite morpheme, adjective-maker morpheme and second person inflectional morpheme is high in Persian corpora which makes POS tagging difficult.

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APA: Copy

ALAYIABOOZAR, ELHAM. (2019). A Corpus-based Study of Persian Noun and Adjective Homographs to help Correct POS Tagging. IRANIAN JOURNAL OF INFORMATION PROCESSING & MANAGEMENT (INFORMATION SCIENCES AND TECHNOLOGY), 34(2 ), 897-922. SID. https://sid.ir/paper/383126/en

Vancouver: Copy

ALAYIABOOZAR ELHAM. A Corpus-based Study of Persian Noun and Adjective Homographs to help Correct POS Tagging. IRANIAN JOURNAL OF INFORMATION PROCESSING & MANAGEMENT (INFORMATION SCIENCES AND TECHNOLOGY)[Internet]. 2019;34(2 ):897-922. Available from: https://sid.ir/paper/383126/en

IEEE: Copy

ELHAM ALAYIABOOZAR, “A Corpus-based Study of Persian Noun and Adjective Homographs to help Correct POS Tagging,” IRANIAN JOURNAL OF INFORMATION PROCESSING & MANAGEMENT (INFORMATION SCIENCES AND TECHNOLOGY), vol. 34, no. 2 , pp. 897–922, 2019, [Online]. Available: https://sid.ir/paper/383126/en

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