sis 18(19): e2

Research Article

Supervised Urdu Word Segmentation Model Based on POS Information

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  • @ARTICLE{10.4108/eai.19-6-2018.155444,
        author={Sadiq Nawaz Khan and Khairullah Khan and Wahab Khan},
        title={Supervised Urdu Word Segmentation Model Based on POS Information},
        journal={EAI Endorsed Transactions on Scalable Information Systems},
        keywords={Urdu, Word segmentation, supervised learning, conditional random fields},
  • Sadiq Nawaz Khan
    Khairullah Khan
    Wahab Khan
    Year: 2018
    Supervised Urdu Word Segmentation Model Based on POS Information
    DOI: 10.4108/eai.19-6-2018.155444
Sadiq Nawaz Khan1,*, Khairullah Khan1, Wahab Khan2
  • 1: Department of Computer Science, University of Science & Technology Bannu, Pakistan
  • 2: Department of Computer Science & Software Engineering, IIU, Islamabad 44000, Pakistan
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Urdu is the national language of Pakistan, also the most widely spoken and understandable language of the globe. In order to accomplish successful Urdu NLP a robust and high-performance NLP tools and resources are utmost necessary. Word segmentation takes on an authoritative role for morphologically rich languages such as Urdu for diverse NLP domains such as named entity recognition, sentiment analysis, part of speech tagging, information retrieval etc. The morphological richness property of Urdu adds to the challenges of the word segmentation task, because a single word can be composed of null or a few prefixes, a stem and null or a few suffixes. In this paper we present supervised Urdu word segmentation scheme based on part of speech (POS) information of the corresponding words. For experiments conditional random fields (CRF) with contextual feature is used. The performance of the proposed system is evaluated on 300K words, results shows evidential improvements on baseline approach.