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A Hybrid Approach to Finding Relevant Social Media Content for Complex Domain Specific Information Needs

22 Pages Posted: 23 Jun 2018 First Look: Accepted

See all articles by Delroy Cameron

Delroy Cameron

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Amit Sheth

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Nishita Jaykumar

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Krishnaprasad Thirunarayan

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Gaurish Anand

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Gary A. Smith

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Abstract

While contemporary semantic search systems offer to improve classical keyword-based search, they are not always adequate for complex domain specific information needs. The domain of prescription drug abuse, for example, requires knowledge of both ontological concepts and “intelligible constructs” not typically modeled in ontologies. These intelligible constructs convey essential information that include notions of intensity, frequency, interval, dosage and sentiments, which could be important to the holistic needs of the information seeker. In this paper, we present a hybrid approach to domain specific information retrieval that integrates ontology-driven query interpretation with synonym-based query expansion and domain specific rules, to facilitate search in social media on prescription drug abuse. Our framework is based on a context-free grammar (CFG) that defines the query language of constructs interpretable by the search system. The grammar provides two levels of semantic interpretation: 1) a top-level CFG that facilitates retrieval of diverse textual patterns, which belong to broad templates and 2) a low-level CFG that enables interpretation of specific expressions belonging to such textual patterns. These low-level expressions occur as concepts from four different categories of data: 1) ontological concepts, 2) concepts in lexicons (such as emotions and sentiments), 3) concepts in lexicons with only partial ontology representation, called lexico-ontology concepts (such as side effects and routes of administration (ROA)), and 4) domain specific expressions (such as date, time, interval, frequency and dosage) derived solely through rules. Our approach is embodied in a novel Semantic Web platform called PREDOSE, which provides search support for complex domain specific information needs in prescription drug abuse epidemiology. When applied to a corpus of over 1 million drug abuse-related web forum posts, our search framework proved effective in retrieving relevant documents when compared with three existing search systems.

Keywords: Semantic Search, Domain Specific Information Retrieval, Complex Information Needs, Ontology, Background Knowledge, Context-Free Grammar

Suggested Citation

Cameron, Delroy and Sheth, Amit and Jaykumar, Nishita and Thirunarayan, Krishnaprasad and Anand, Gaurish and Smith, Gary A., A Hybrid Approach to Finding Relevant Social Media Content for Complex Domain Specific Information Needs (September 7, 2014). Journal of Web Semantics First Look 29_0_3. Available at SSRN: https://ssrn.com/abstract=3199137 or http://dx.doi.org/10.2139/ssrn.3199137

Delroy Cameron (Contact Author)

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis) ( email )

Dayton, OH 45435
United States

Amit Sheth

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Dayton, OH 45435
United States

Nishita Jaykumar

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Dayton, OH 45435
United States

Krishnaprasad Thirunarayan

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Dayton, OH 45435
United States

Gaurish Anand

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Dayton, OH 45435
United States

Gary A. Smith

Wright State University - Ohio Center of Excellence in Knowledge-Enabled Computing (Kno.e.sis)

Dayton, OH 45435
United States

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