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Information Classification and Organization Using Neuro-Fuzzy Model for Event Pattern Retrieval

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Abstract

Classifying the sentences that describe Events is an important task for many applications. In this chapter, Event patterns are identified and extracted at sentence level using term features. The terms that trigger Events along with the sentences are extracted from Web documents. The sentence structures are analysed using POS tags. A hierarchal sentence classification model is presented by considering specific term features of the sentence, and the rules are derived. The rules fail to define a clear boundary between the patterns and create ambiguity and impreciseness. To overcome this, suitable fuzzy rules are derived which give importance to all term features of the sentence. The fuzzy rules are constructed with more variables and generate sixteen patterns. Artificial neuro-fuzzy inference system (ANFIS) model is presented for training and classifying the sentence patterns for capturing the knowledge present in sentences. The obtained patterns are assigned linguistic grades based on previous classification knowledge. These grades represent the type and quality of information in the patterns. The membership function is used to evaluate the fuzzy rules. The patterns share the membership values between [0–1] which determines the weights for each pattern. Later, higher weighted patterns are considered to build Event Corpus, which helps in retrieving useful and interested information of Event Instances. The performance of the presented approach classification is evaluated for ‘Crime’ Event by crawling documents from WWW and also evaluated for benchmark dataset for ‘Die’ Event. It is found that the performance of the presented approach is encouraging when compared with recently proposed similar approaches.

Keywords

Sentence classification Pattern analysis Event detection Instances Fuzzy rules Corpus 

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Department of Computer Science and EngineeringDayananda Sagar UniversityBangaloreIndia
  2. 2.Department of Computer Science and EngineeringSRM University APAmaravatiIndia

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