INSITE Publications

INSITE Publications

View the following panels for INSITE: Center for Business Intelligence and Analytics publications:

Feature Journal Publications

Large Scale Network Analysis for Online Social Brand Advertising
Kunpeng Zhang, Siddhartha Bhattacharyya, and Sudha Ram; MIS Quarterly, Special Issue: Transformational Issues of Big Data and Analytics in Networked Business; 2016
This paper proposes an audience selection framework for online brand advertising based on user activities on social media platforms. It is one of the first studies to our knowledge that develops and analyzes implicit brand–brand networks for online brand advertising. This paper makes several contributions. We first extract and analyze implicit weighted brand–brand networks, representing interactions among users and brands, from a large dataset. We examine network properties and community structures and propose a framework combining text and network analyses to find target audiences. As a part of this framework, we develop a hierarchical community detection algorithm to identify a set of brands that are closely related to a specific brand. This latter brand is referred to as the “focal brand.” We also develop a global ranking algorithm to calculate brand influence and select influential brands from this set of closely related brands. This is then combined with sentiment analysis to identify target users from these selected brands. To process large-scale datasets and networks, we implement several MapReduce-based algorithms. Finally, we design a novel evaluation technique to test the effectiveness of our targeting framework. Experiments conducted with Facebook data show that our framework provides significant performance improvements in identifying target audiences for focal brands. [more]
Predicting Asthma‐Related Emergency Department Visits Using Big Data
By Ram, S. ; Zhang, W. ; Williams, M. ; Pengetnze, Y.; Journal of Biomedical and Health Informatics IEEE; July 8, 2015
Asthma is one of the most prevalent and costly chronic conditions in the United States, which cannot be cured. However, accurate and timely surveillance data could allow for timely and targeted interventions at the community or individual level. Current national asthma disease surveillance systems can have data availability lags of up to two weeks. We introduce a novel method of leveraging the non-traditional, digital information to predict the volume of asthma‐related emergency room visits in a specific area. Twitter data, Google search interests, and environmental sensor data were collected for this purpose. The preliminary findings show that our model can predict the number of asthma ED visits based on near‐real‐time environmental and social media data with approximately 70% precision. The findings could help hospital emergency departments plan better with regard to staffing and equipment availability in a flexible manner. They can also provide early warning signals to the people at risk for asthma adverse events, and enable timely, proactive, and targeted preventive and therapeutic interventions. [more]
Predicting Location-Based Sequential Purchasing Events by Using Spatial, Temporal, and Social Patterns
By Yun W.; Ram, S.; Intelligent Systems, IEEE; May-June 2015.
Location-based sequential event prediction is an interesting problem with many real-world applications. For example, knowing when and where people will use certain kinds of services could enable the development of robust anticipatory systems. A key to this problem is in understanding the nature of the process from which sequential data arises. Usually, human behavior exhibits distinct spatial, temporal, and social patterns. The authors examine three kinds of patterns extracted from sequential purchasing events and propose a novel model that captures contextual dependencies in spatial sequence, customers' temporal preferences, and social influence via an implicit network. Their model outperforms existing models based on evaluations using a real-world dataset of smartcard transaction records from a large educational institution with 13,753 students during a 10-month time period. [more]
 "Differentiating Telic-Atelic Data Semantics in Conceptual Design”
IEEE Transactions on Knowledge and Data Engineering, 2013 (with V.Khatri,R Snodgrass,P Terenziani).
“Using a Network Analysis Approach for Organizing Social Bookmarks and Enabling Web Content Discovery”
ACM Transactions on MIS, 2013 (with W.Wei).
Sharing News Articles Using 140 Characters: A Diffusion Analysis on Twitter
By Bhattacharya, D., Ram, S., Business Applications of Social Networking (BASNA 2012), Instanbul, Turkey, Aug 2012
Is it possible to effectively spread news articles to a large audience using 140 characters?  How does the microblogging website Twitter get used as a platform for the news media agencies to create awareness about the articles they publish on a daily basis? Our study of the diffusion patterns of news articles from 12 popular news sources, including BBC, New York Times, and Mashable on Twitter reveals that a large number of users not only consume and comment on these news articles but also share them in different ways. Combining the methods of network and temporal analyses, we examine and report on how news articles diffuse on Twitter, and how different propagation mechanisms result in different lifespans for news articles. To be available in the Proceedings of the ASONAM 2012 Conference via IEEE Explore. [more]

Journal Publications

  • Srinivasan, K., Currim, F., & Ram, S. (2018). Predicting High-Cost Patients at Point of Admission Using Network Science. IEEE journal of biomedical and health informatics, 22(6), 1970-1977.
  • Lindberg, C. M., et al. (2018). Effects of office workstation type on physical activity and stress. Occup Environ Med, 75(10), 689-695.
  • Lismont, J., Ram, S., Vanthienen, J., Lemahieu, W., & Baesens, B. (2018). Predicting interpurchase time in a retail environment using customer-product networks: An empirical study and evaluation. Expert Systems with Applications, 104, 22-32.
  • Liu, J., & Ram, S. (2018). Using big data and network analysis to understand Wikipedia article quality. Data & Knowledge Engineering, 115, 80-93.
  • Hashim, M. J., Ram, S., & Tang, Z. (2018). Uncovering the Effects of Digital Movie Format Availability on Physical Movie Sales. Available at SSRN 1680016.
  • Currim, F., & Ram, S. (2018). Understanding Semantic Completeness in Rule Frameworks for Modeling Cardinality Constraints. Enterprise Modelling and Information Systems Architectures, 13, 293-315.
  • Delen, D., & Ram, S. (2018). Research challenges and opportunities in business analytics. Journal of Business Analytics, 1(1), 2-12.
  • Bohra, M., Ram, S., Barbar, S. K., & Patel, K. R. (2018). Characterization of Source Rock Sediments from Test Well GGAG# 699 Located in Gandhar Oil Field of Gujarat Petroliferous Basin, India, using 57 Fe Mössbauer Spectroscopy. Journal of Pure & Applied Science & Technology, 8(1).
  • Fritzsche, D., et al. (2017). Ontology Summit 2016 Communique: Ontologies within semantic interoperability ecosystems. Applied Ontology, 12(2), 91-111.
  • Liu, J., & Ram, S. (2017). Improving the domain independence of data provenance ontologies: a demonstration using conceptual graphs and the W7 model. Journal of Database Management (JDM), 28(1), 43-62.
  • “A Semantic Foundation for Provenance Management”, Journal on Data Semantics, Vol 1, No. 1, May 2012, pp. 11-17 (with J.Liu).
  • “Who Does What: Collaboration Patterns in the Wikipedia and their impact on Article Quality”, ACM Transactions on MIS, Vol. 2, No. 2, Article 11, June 2011 (with J.Liu).
  • “MultiCriterion Market Segmentation: A new Model, Implementation and Evaluation”, Marketing Science, Vol. 29, No. 5, September-October 2010, pp. 880-894 (with Y.Liu, R. Lusch and M. Brusco).
  • “Modeling Spatial and Temporal Set-Based Constraints During Conceptual Database Design”, Information Systems Research, March 2012, Vol 23, pp. 109-128 (with F. Currim).
  • "A Non-Invasive Software Architecture Style for RFID Data Provisioning",International Journal of Applied Logistics, Vol.1, No. 1, January 2010, pp. 1-15 (with Y. Liu, T. Lin, and X. Su).
  • “Linking Biological Databases Semantically for Knowledge Discovery”, Lecture Notes in Computer Science 5232 Springer 2008, pp. 22-32. (with W. Wei and KP Zhang).
  • "Entity matching across heterogeneous data sources: An approach based on constrained cascade generalization", Data and Knowledge Engineering, Vol. 66, No. 3, September, 2008, pp. 368-381 (with H.Zhao).
  • "A Semiotics Framework for Analyzing Data Provenance Research", Journal of Computing Science and Engineering, Vol. 2, No. 3, September 2008, pp. 221-248. (with Jun Liu)
  • "Survey of Cardinality Constraints for Snapshot, Temporal and Spatio-temporal Semantic Models", Systems Analysis and Design for Advanced Modeling Methods: Best Practices, forthcoming, April 2010. (with F. Currim).
  • "Conceptually Modeling Windows and Bounds for Space and Time in Database Constraints”, Communications of the ACM, 2007 (with F. Currim)
  • "Database design and querying within the fuzzy semantic model”, Information Sciences, Volume 177, No. 21, 2007, pp. 4598-4620 (with R. Bouaziz, S. Chakhar, V. Mousseau, A. Telmoudi)
  • "Special Issue on "Semantic Web: Opportunities and Challenges", Information Technology and Management, 8(3), September 2007, pp. 203-204 (with H. Zhao). 
  • "Defining, Eliciting and Using Data Semantics for Emerging Domains”, Journal of Database Management , Jan-March 2007, pp 1-13. (with V. Khatri).
  • "A Comprehensive Framework Towards Information Sharing Among Government Agencies”, International Journal of E-Government Research, Vol. 3, No. 2, April-June 2007, pp. 29-44 (with A. Bajaj) 
  • "Understanding the Semantics of Data Provenance to Support Active Conceptual Modeling", LNCS 4512. Springer-Verlag, 2007, pp. 17-29 (with J. Liu).
  • “Conceptual Modeling: a 25 Year history”, Springer Verlag, LNCS 4215, November 2006 (with D. Embley, and A. Olive), pp. V-VI.
  • "Advances in Data Modeling Research", Communications of the AIS, Vol 17, Article 30, April 2006 (with A. Bajaj, G. Allen, V. Khatri, and K. Siau).
  • "Combining Schema and Instance Information for Combining Heterogeneous Data Sources", Data and Knowledge Engineering, 61, No. 2, 2007, pp. 281-303 (with H. Zhao).
  • "Elitist and Ensemble Strategies for Cascade generalization", Journal of Database Management, Vol. 17, Issue 3, pp. 92-107, 2006 ( H. Zhao and A. Sinha).
  • "Augmenting Database Design-Support Environments to Capture the Spatio-Temporal Data Semantics", Information Systems, Volume 31, Issue 2 (April 2006), Pages: 98 - 133 (with V. Khatri, and R. Snodgrass).
  • "Cognitive Fit between Conceptual Schema and Internal Problem Representation: The case of geospatio temporal conceptual schema comprehension", IEEE Transactions on Professional Communication, June 2006 Volume: 49, Issue: 2, On page(s): 109- 127 (with V. Khatri, V. Ramesh and I. Vessey).
  • "A Fuzzy Measure-Theoretical Framework for Screening Product Innovations",IEEE Transactions on Systems, Man, and Cybernetics-Part A: Systems and Humans , Vol. 36, No. 3, May 2006. ( with D. Liginlal and L. Duckstein).
  • "A Comprehensive Framework for Modeling Set-Based Business Rules during Conceptual Design" , Information Systems, Vol. 30, No. 2, April 2005, pp. 89-118 (with V. Khatri). (This paper is in the Science Direct Top 25 list of hottest papers)
  • "Entity Identification for Heterogeneous Database Integration - A Multiple Classifier System Approach and Empirical Evaluation" , Information Systems, Vol. 30, No. 2, April 2005, pp. 119-132 (with Huimin Zhao).
  • "An Agent Based Approach for Sourcing Business Rules in Supply Chain Management" , International Journal of Intelligent Information Technologies, Vol. 1, Vo. 1, January 2005, pp. 1-16 (with J. Liu)
  • "Information Systems Interoperability: What Lies Beneath?" , ACM Transactions on Information Systems, Vol. 22, No. 4, October 2004, pp. 595-632 (with Jinsoo Park).
  • "Clustering Schema Elements for Semantic Integration of Heterogeneous Data Sources" , Journal of Database Management, 15(4), October –December 2004, pp. 88-106 (with H. Zhao).
  • "Constrained Cascade Generalization of Decision Trees: How deep to go?" , IEEE Transactions on Knowledge and Data Engineering, Vol 16, No. 6, June 2004, pp. 727-739 (with H. Zhao) .
  • "Augmenting a Conceptual Model with Spatio-Temporal Annotations" , IEEE Transactions on Knowledge and Data Engineering, Vol16, No. 11, November 2004, pp. 1324-1338 (with V. Khatri, and R. Snodgrass).
  • "Design Science in Information Systems Research" , MIS Quarterly, Volume 28, No. 1, March 2004, pp. 75-105, (with A. Hevner, S. March, J. Park). 
  • "Semantic Conflict Resolution Ontology (SCROL): An Ontology for Detecting and Resolving Data and Schema Level Conflicts" , IEEE Transactions on Knowledge and Data Engineering, Volume. 16, No. 2, February 2004, pp. 189-202 (with J. Park) 
  • "IAIS: A Methodology to Enable InterAgency Information Sharing in E-Government" , Journal of Database Management, Vol.14, No.4, Oct-Dec 2003, pp.59-80, (with A. Bajaj).
  • "SEAM: A State Entity Activity Model for a Well defined Workflow Development Methodology" , IEEE Transactions on Knowledge and Data Engineering, Vol. 14, No. 2, March/April 2002, pp. 415-431 (with A. Bajaj).
  • "Informediation for Ebusiness Supply Chains: A Semantics Based Approach" , in Semantic Issues in Ecommerce Systems (R. Meersman, K. Aberer, T Dillon eds.), Kluwer Academic Publishers, 2003, pp. 205-220 (with V. Khatri, and Y, Hwang).
  • "DISTIL: A Design Support Environment for Conceptual Modeling of Spatio Temporal Requirements" , in Lecture Notes in Computer Science 2224, Hideko S. Kunii, Sushil Jajodia, and Arne Solvberg (eds.), 2001, pp. 70-83 ( with V. Khatri, R. Snodgrass, and Y. Hwang). 
  • "GeoCosm: A Semantics Based Approach for Information Integration of GeoSpatial Data" , in Lecture Notes in Computer Science 2465, Hiroshi Arisawa, Yahiko Kambayashi, Vijay Kumar, Heinrich C. Mayr, and Ingrid Hunt ( Eds.), 2002, pp. 152-165 ( with V. Khatri, L Zhang, and D. Zeng).
  • "Supporting User-Defined Granularities and Indeterminacy in a Spatiotemporal Conceptual Model" , Annals of Mathematics and Artificial Intelligence, Vol. 36, 2002, pp. 195-232 (with V. Khatri, R. Snodgrass).
  • " Semantic Modeling and Decision Support in Hydrology ", Special Issue on Remote Sensing and Decision Support Systems of Journal of Photogrammetric Engineering and Remote , Vol. 66, No. 10, October 2000, (with V. Khatri, Y. Hwang, and S. Yool).
  • " An Agenda for Information Technology Research in Heterogeneous and Distributed Environment ", Information Systems Research , Vol. 11, No. 4, December 2000, pp. 327-334, (with S. March and A. Hevner).
  • " Managing Information Products for the BioActive Agents from Drylands Biodiversity of Latin America Project ", IAALD Quarterly Bulletin , Vol.XLIV, No. 3/4, 2000, pp. 163-172, (with B. Hutchinson, J. Henzel and B. Timmermann).
  • " Intelligent Agents and the World Wide Web: Fact or Fiction ", Vol. 12 No 1, Jan-Mar 2001, Journal of Database Management , pp. 46-47.
  • " Developing Information Products for an International Biodiversity Project ",forthcoming, Agricultural Information Specialists Quarterly , 2000 (with B. Hutchinson, J. Henzel, F. Currim, and B. Timmermann).
  • " The Latin America ICBG: The First Five Years ", Vol. 37, Supplement, Journal of Pharmaceutical Biology , 2000, pp. 35-54 (with B. Timmermann, B. Hutchinson, J. Henzel, and F. Currim)
  • " Digital Libraries in the Next Millennium: State of the Art and Research Directions ", Information Systems Frontiers , Vol. 1, No. 1, 1999, pp. 75-94 (with J. Park and D. Lee).
  • " Research Direction in Conceptual Modeling ", (Guest Editional), Data and Knowledge Engineering , Vol. 31, No. 3, Nov. 1999, pp. 225-227 (with T. W. Ling) 
  • " Evaluating Completeness of Conceptual Business Process Models: A Metric Based on Case Studies ", Journal of Information Technology Cases and Applications , Vol. 1, No. 4, 1999, pp. 5-30, (with A. Bajaj).
  • " Semantic Model Support for Geographic Information Systems ", IEEE Computer , Vol. 32, No. 5, May 1999, pp. 74-81 (with J. Park and G. Ball).
  • " Semantics Based Transaction Processing for real-Time Databases: The Case of Automated Stock Trading ", INFORMS Journal on Computing , Vol. 11, No. 3, 1999, pp. 299-315 (with P. Konana).
  • " An Empirical Analysis of the Object-Oriented Database Concurrency Control Mechanism O2C2 ", Journal of Database Management , April-June 1999, pp. 14-26 (with D. Olsen).
  • " Transaction Processing Mechanisms for Active and Real-Time Databases: A Comprehensive Protocol and a Performance Study ", Journal of Systems and Software , Vol. 42, No. 3, Sept. 1998, pp. 288-305 (with P. Konana).
  • " Database Fragmentation and Allocation: An Integrated Methodology and Case Study ", IEEE Transactions on Systems, Man and Cybernetics , Vol. 28, No. 3, May 1998, pp. 288-305 (with A. Tamhankar).
  • " Collaborative Conceptual Schema Design: A Process Model and a Prototype Systems ", ACM Transactions on Information Systems , Vol. 16, No. 4, Oct. 1998, pp. 347-371 (with V. Ramesh).
  • " Integrity Constraint Integration in Heterogeneous Databases: An Enhanced Methodology for Schema Integration ", Information Systems , Vol.22, No. 8, pp. 423-446, 1997(with V. Ramesh).
  • " Updating Timestamp Interval for Dynamic Adjustment of Serialization Order in Optimistic Concurrency Control-Time Interval (OCCTI) protocol ", Information Processing Letters , 1997, Vol. 63, pp. 54-65 (with P. Konana and J. Lee).
  • "Allocation of Databases in a Distributed Database Environment", forthcoming, Journal of Database Management , 1997 (with S. Narasimhan).
  • " A Content Specifications for Business Process Models ", Australian Journal of Information Systems , Vol. 4, No. 1, Sept 1996, pp. 22-31 (with A. Bajaj).
  • " Practical Aspects of Teaching and Applied database Course ", Database , Vol. 27, No. 3, Summer 1996, pp. 15-33 (with J. Choobineh).
  • " Screening Products for International Markets: An Expert Systems Application ",forthcoming, New Review of Applied Expert Systems , 1996, 45-57 (with Sundaresan Ram).
  • " Design and Validation of a Knowledge Based System for Screening Product Innovations ", IEEE Transactions on Systems, Man and Cybernetics , Vol.26, No.2, March 1996, pp. 213-221 (with S. Ram).
  • " Deriving Functional Dependencies from the Entity Relationship Model ",Communications of the ACM , Vol. 38, No. 9, Sept 1995 pp. 95-107.
  • " Incorporating the Majority Consensus Concurrency Control Mechanism into the Database Allocation Problem ", Orsa Journal on Computing , Vol. 7, No. 3, Summer 1995, pp. 244-256 (with S. Narasimhan)
  • " A Blackboard Architecture for Schema Integration ", IEEE Expert , Vol. 10, No. 3, June 1995, pp. 56-62 (with V. Ramesh).
  • " Understanding Database Design Expertise ", Data and Knowledge Engineering , Vol.16, 1995, pp. 97-124 (with V. Storey, C. Thompson).
  • " Towards a Comprehensive Concurrency Control Mechanism for Object Oriented Databases ", Journal of Database Management , Vol.6, No.4, 1995, pp. 24-34 (with Dave Olsen).
  • " Validation of Expert Systems for Innovation Management: Issues, Methodology and Empirical Assessment ", Journal of Product Innovation Management , Vol. 13, No.1, Jan. 1996 (with Sundaresan Ram).
  • " Information Technologies and Systems ", Decision Support Systems , Vol. 13, 1995 (with R. Blanning and R. Wang).
  • " Group Database Design: View Modeling and Integration ", Journal of Systems and Software , Vol. 28, No. 2, Feb. 1995, pp. 97-116 (with S. Hayne).
  • " Database Allocation in a Distributed Environment: Incorporating Concurrency Control and Queuing Costs ", Management Science Vol. 40, No. 8, August 1994, pp. 969-983 (with S. Narasimhan).
  • " Integrating Information Systems Technologies to Support Consultation in an Information Center ", Information and Management , Vol. 23, 1992, pp.331-343 (with S. Hayne, and D. Carlson).
  • " A Knowledge Representation for Modeling Organizational Productivity ", Journal of Organizational Computing , Vol. 2, No. 2, 1992, pp. 155-180 (with D. Carlson).
  • " Heterogeneous Distributed Database Systems ", IEEE Computer , Vol. 24, No. 12, Dec. 1991, pp. 7-12.
  • " A Model for Database Allocation Incorporating A Concurrency Control Mechanism ", IEEE Transactions on Knowledge and Data Engineering , Sept. 1991, pp. 389-395 (with R. Marsten).
  • " An Architecture for Distributed Knowledge Based Systems ", Database , Vol. 22, No. 1/2, Winter/Spring 1991, pp. 11-21 (with D. Carlson).
  • " Communication Requirements and Network Evaluation within a GDSS Environment ", Journal of Decision Support Systems , Vol. 7, 1991, pp. 13-31 (with A. Dennis, T. Abens, and J.F. Nunamaker).
  • " The Synthesis Approach for Relational Database Design ", Information Sciences , Vol. 52, No. 3,Oct. 1990, pp. 134-149 (with S. M. Curran).
  • "HyperIntelligence: The Next Frontier ", Nikkei Artificial Intelligence Journal , Nikkei Business Publications, 1990, pp. 51-67 (with D. Carlson).
  • " Screening Financial Innovations: An Expert Systems Approach ", IEEE Expert , Vol. 5, No. 4, Aug. 1990, pp. 20-28 (with S. Ram).
  • " Architecture of Distributed Data Base Systems ", Journal of Systems and Software , Vol. 10, No. 2, Sept. 1989, pp. 77-95 (with C. Chastain).
  • " A Model for Designing Distributed Database Systems ", Information & Management , Vol. 17, 1989.
  • " An Automated Tool for Relational Database Design ", Information Systems , Vol. 14, No. 3, 1989, pp. 247-259 (with S. M. Curran).
  • " Expert Systems: An Emerging Technology for Selecting New Product Winners ",Journal of Product Innovation Management , Vol. 6, No. 2, June 1989, pp. 89-98 (with S. Ram).
  • " Innovator: An Expert System for New Product Launch Decisions ", Applied Artificial Intelligence , Vol. 2, No. 2, 1988, pp. 129-148 (with S. Ram).

Special Issues of Journals

  • Journal of Database Management, Fall 2006
    Dr. Ram and Dr. Vijay Khatri are co-editors of a special issue on "Defining Eliciting and Using Data Semantics for Emerging Domains" of Journal of Database Management, 2006.
  • Information Technology and Management, Fall 2006
    Dr. Ram and Dr. H. Zhao are co-editors of a special issue on "Semantic Web: Opportunities and Challenges" of Information Technology and Management , scheduled to come out in 2006.
  • 25th ER Conference, Nov. 6-9, 2006
    25th International Conference on Conceptual Modeling, ER 2006, will be held in Tucson, Arizona for four days starting from November 6th in 2006. 

Featured Conferences

How Social Is Social Bookmarking?
Proceedings of the IEEE Workshop on Business Applications of Social Networking (BASNA 2010), Bangalore, India, Dec 2010
Social bookmarking services allow a user to make her personal collection of favorite web resources accessible by the public. The content of this collection can attract users of “similar minds” and therefore has tremendous potential to enable networking and collaboration. In this research, we analyzed a large dataset collected from one of the most popular social bookmarking services. To understand why there is a large gap between a user’s explicit network and her implicit user-user association networks based on common resources or common tags, we compared a users’ bookmark resources and tags to those of her explicit network members. Our results suggest that a typical social bookmarking service user does not create her explicit network based on common interests. We discuss the implications behind the gap between a user’s explicit network and implicit network and propose solutions to enhance and improve the “social” functions of social bookmarking services. [more]
Organizing Social Bookmarking Tags Using a Network Analysis Approach
Proceedings of 20th Workshop on Information Technology and Systems (WITS2010)
Social bookmarking tags are generated and shared by web users as online content metadata for different reasons. We believe these reasons can be used to distinguish tags from each other, and thus, can be used to organize the flat tag space into a faceted structure. In this research, we collected a large set of tags from Delicious and empirically analyzed them using a social network analysis approach. Our results show that tags can be organized into a faceted structure and these facets can be derived from the social network analysis.
FASTS: Facets Structured Tag Space – A Novel Approach to Organize and Reuse Social Bookmarking Tags
Proceedings of DESRIST 2010, St. Gallen, in Global Perspectives on Design Science Research Lecture Notes in Computer Science, Volume 6105/2010, pp. 426-438, DOI: 10.1007/978-3-642-13335-0_29, 2010, 2010
Social bookmarking tools are generating an enormous pool of metadata describing and categorizing web resources. The value of these metadata in the form of tags can be fully realized only when they are shared and reused for web search and retrieval. The research described in this paper proposes a facet classification mechanism, and a tag relationship ontology to organize tags into a meaningful and intuitively useful structure. We have implemented a web-based prototype system to effectively search and browse bookmarked web resources using this approach. We collected real tag data from del.icio.us for a wide range of popular domains. We analyzed, processed, and organized these tags to demonstrate the effectiveness and utility of our approach for tag organization and reuse. [more]

Conference Proceedings

  • Srinivasan, K., et al. (2017, July). A Regularization Approach for Identifying Cumulative Lagged Effects in Smart Health Applications. In Proceedings of the 2017 International Conference on Digital Health (pp. 99-103). ACM.
  • S. A. Ram, N. Siddarth, N. Manjula, K. Rogan and K. Srinivasan, "Real-time automation system using Arduino," 2017 International Conference on Innovations in Information, Embedded and Communication Systems (ICIIECS), Coimbatore, 2017, pp. 1-5.
  • Wang, Y., Ram, S., Currim, F., Dantas, E., & Sabóia, L. A. (2016, September). A big data approach for smart transportation management on bus network. In Smart Cities Conference (ISC2), 2016 IEEE International (pp. 1-6). IEEE.
  • Ram, S., Dong, F., Currim, F., Wang, Y., Dantas, E., & Sabóia, L. A. (2016, September). Smartbike: Policy making and decision support for bike share systems. In Smart Cities Conference (ISC2), 2016 IEEE International (pp. 1-6). IEEE.
  • Verma, K., Patel, K. R., Ram, S., & Barbar, S. K. (2016, May). Synthesis and characterization of Cr doped CoFe2O4. In AIP Conference Proceedings (Vol. 1728, No. 1, p. 020097). AIP Publishing.
  • Ram, S., Wang, Y., Currim, F., Dong, F., Dantas, E., & Sabóia, L. A. (2016, April). SMARTBUS: A web application for smart urban mobility and transportation. In Proceedings of the 25th International Conference Companion on World Wide Web (pp. 363-368). International World Wide Web Conferences Steering Committee.
  • Srinivasan, K., et al. (2016, April). Feature importance and predictive modeling for multi-source healthcare data with missing values. In Proceedings of the 6th International Conference on Digital Health Conference (pp. 47-54). ACM.
  • Zhang, W., Ram, S., Burkart, M., & Pengetnze, Y. (2016, April). Extracting signals from social media for chronic disease surveillance. In Proceedings of the 6th International Conference on Digital Health Conference (pp. 79-83). ACM.
  • Bhattacharya, D., & Ram, S. (2016, April). Understanding the Competitive Landscape of News Providers on Social Media. In Proceedings of the 25th International Conference Companion on World Wide Web (pp. 719-724). International World Wide Web Conferences Steering Committee.
  • Srinivasan, K., & Ram, S. (2016, April). Indoor Environmental Effects on Individual Wellbeing. In Proceedings of the 6th International Conference on Digital Health Conference (pp. 167-168). ACM.
  • Ram, S., & Jung, H. S. (2015). How Does Variety Seeking Affect Product Usage?. In Proceedings of the 1987 Academy of Marketing Science (AMS) Annual Conference (pp. 85-89). Springer, Cham.
  • Zhang, K., Bhattacharyya, S., & Ram, S. (2014, September). Empirical analysis of implicit brand networks on social media. In Proceedings of the 25th ACM conference on Hypertext and social media (pp. 190-199). ACM.
  • "Examining Lists on Twitter to Uncover Relationships between Following, Membership and Subscription", proceedings of the Mining Social Network Dynamics Workshop at WWW Conference, 2013 (with S.Velichety).
  • "News Article Propagation on Twitter based on Network Measures: An exploratory Analysis", proceedings of WITS 2012 (with D. Bhattacharya).
  • "Sharing News Articles Using 140 Characters: A Diffusion Analysis on Twitter", proceedings of IEEE Conference on Applications of Social Network Analysis (ASONAM 2012), August 2012 (with D. Bhattacharya).
  • "Exploring the Evolution of Lists using Lists in Twitter", proceedings of IEEE Workshop on Business Applications of Social Network Analysis, 2011, Bangalore, India. (with Z. Zhao).
  • "Common Citation Analysis and Technology Overlap Factor: An empirical study of Litigated Patents using Social Network Analysis", DESRIST, 2012 Proceedings, May 2012 (with S. Velichety).
  • "Who Does What: Impact of Collaboration Patterns in the Wikipedia and their Impact on Data Quality", proceedings of the Workshop on Information technology and Systems, Phoenix, Dec. 2010 – this paper received the “Overall best paper” award.
  • "BioSem: Biological Data Integration", proceedings of the CMLSA workshop, Barcelona, November 2008. (with W.Wei and KP Zhang). 
  • "RFID Tagging at the Aggregate level: Implications for Using Groupings",forthcoming, SIGSAND proceedings, May 2008 (with F. Currim).
  • "RFID Data: A case for and of Types and Instances", proceedings of Workshop on Information Technology and Systems, December 2007 (with F. Currim).
  • "BIO-LINK: Using Semantics to Link Heterogeneous Biological Databases for Knowledge Discovery", Proceedings of 16 th Workshop in Information Technology and Systems”, Milwaukee, Dec. 2006 (with W. Wei).
  • ""PROMS: A System for Harvesting and Managing Data Provenance", Proceedings of 16 th Workshop in Information Technology and Systems”, Milwaukee, Dec. 2006 ( with J. Liu).
  • "A Non invasive Software Architecture Style for RFID Data Provisioning",Proceedings of 16 th Workshop in Information Technology and Systems”, Milwaukee, Dec. 2006 (With Y. Liu).
  • "Understanding the concept of ‘Completeness' in Frameworks for Modeling Cardinality Constraints", Proceedings of 16 th Workshop in Information Technology and Systems”, Milwaukee, Dec. 2006 ( with F. Currim).
  • "Making the Case for New Semantic Constructs to Model RFID Data", in Proceedings of SIGSAND, May 12, 2006, Vancouver, British Columbia.
  • "A Clustering Based Approach for Semantic Web Service Discovery", Proceedings of the 15th Workshop on Information Technology and Systems (WITS 2005), Las Vegas, Nevada, December 9-10, 2005 ( with Y. Hwang and H. Zhao).
  • "Contextual Web Search Based on Semantic Relationships", Proceedings of the 15th Workshop on Information Technology and Systems (WITS 2005), Las Vegas, Nevada, December 9-10, 2005 (with L. Zhang, and D. Zeng).
  • "Understanding Semantic Links between Heterogeneous Biological Data Sources",Proceedings of the 15th Workshop on Information Technology and Systems (WITS 2005), Las Vegas, Nevada, December 9-10, 2005 ( with W. Wei).
  • "A Unified Market Segmentation Method for Generating Pareto Optimal Sets",Proceedings of the 15th Workshop on Information Technology and Systems (WITS 2005), Las Vegas, Nevada, December 9-10, 2005 (with Y. Liu and R. Lusch). ( Nominated for Best Paper Award).
  • "Multicriterion Market Segmentation Using Evolutionary Algorithms", Proceedings of the 2005 NYU International Workshop on Customer Relationship Management: Data Mining Meets Marketing", Nov. 18-19, 2005 (With Y. Liu and R. Lusch).
  • "Towards Semantic Interoperability of Heterogeneous Biological Data Sources", in Advanced Information Systems Engineering, 17th International Conference, CAiSE 2005, Porto, Portugal, June 13-17, 2005, Proceedings.
  • "Why do novices make errors in database conceptual modeling", Proceedings of SIGSAND, May 2005 (With S. Currim).
  • "Toward Automatic Integration of Heterogeneous Biological Data Sources to Discover New Biological Knowledge'' , WITS 2004, Washington DC, December 2004 (With W. Wei).
  • "Modeling the Semantics of Protein Structures" , forthcoming, Proceedings of the 23rd International Conference on Conceptual Modeling" (ER 2004), Shanghai, China, November 2004 (With W. Wei)
  • "Can expressiveness and simplicity be simultaneously achieved in conceptual modeling?" , Exploring the role of supplementary level of abstraction for spatio-temporal conceptual modeling", Proceedings of SIGSAND, June 2004 (With Khatri, V. Ramesh and I. Vessey) 
  • "Semantic Modeling of Biological Sequences" , Proceedings of the 13th Workshop on Information Technologies and Systems, Seattle, December 12-13, 2003, pp. 183-188 (With W. Wei).
  • "Storage Allocation in Web Prefetching Techniques" , ACM Conference on Electronic Commerce, June 2003 ( with D. Zeng, and F.Y Wang).
  • "Efficient and Scalable Query Planning in Distributed Open Environments" ,Proceedings of the Workshop on Information Technology and Systems (WITS), 2001, pp. 187-192 (with V. Khatri, D. Zeng and L. Zhang).
  • "Detecting both Schema-Level and Instance Level Correspondences for the Integration of E-Catalogs" , Proceedings of the Workshop on Information Technology and Systems (WITS), 2001, pp. 193-198, 2001 (with H. Zhao).
  • "GeoCosm: A Semantics Based Approach for Information Integration of GeoSpatial Data" , Proceedings of the International Workshop on Data Semantics in Web Information Systems ( DASWIS), Nov. 2001, (with V. Khatri, L. Zhang, D. Zeng).
  • "DISTIL: A Design Support Environment for Conceptual Modeling of Spatiotemporal Requirement ", Proceedings of the 20th International Conference on Conceptual Modeling , Yokohama, Japan, Nov. 2001 (with V. Khatri, R. Snodgrass).
  • " Infomediation for E-business enabled Supply Chains: A Semantics Based Approach ", Proceedings of DS-9-Semantic Issues in Ecommerce Systems , Hong Kong, April 23-28 2001, (with Y. Hwang, V. Khatri).
  • " A Framework for Classifying Semantic Conflicts in Geographic Databases ",Proceedings of the Ninth International Workshop on Information Technology and Systems, North Carolina, Dec. 1999.
  • " Improvement Research Methods in MIS ", Proceedings of the Ninth International Workshop on Information Technology and Systems , North Carolina, Dec. 1999.
  • " An Intelligent Agent based toolkit Discovering and Accessing Distributed Earth Observing Data ", Proceedings of EOGEO98 , Salzburg, Austria, Feb. 1998 (with S. Venkatasubramanyan, S. Yool, S. Marsh, and J. Park).
  • " A Semantic Based Approach for Managing Remote Sensing Data in a Distributed Heterogeneous Environment ", Proceedings of the ISPRS Workshop , Boulder, CO, Oct 1997. 
  • " Modeling Spatial and Temporal Semantic in a Large Heterogeneous GIS Database Environment ", Proceedings of the 2nd Americas Conference on Information Systems(AIS`96) , Phoenix, Arizona, Aug. 16-18, 1996 (with J. Park).
  • " Semantic Based Transaction Processing for Real Time Databases: A Protocol and Performance Evaluation ", Proceedings of the INFORMS Conference on Information Systems and Technology , Washington DC, May 1996 (with P. Konana).
  • " A Graph Theoretic Approach for Schema Evolution ", Proceedings of the INFORMS Conference on Information Systems and Technology , Washington DC, May 1996 (with G. Shankar ).
  • " A Methodology for Interschema Relationship Identification in Heterogeneous Databases ", Proceedings of the Twenty Eight Hawaii International Conference on System Sciences - HICSS-28 , Maui, HI, Jan. 1995 (with V. Ramesh).
  • " Integrity Constraint Integration in Heterogeneous Databases: An Enhanced Methodology for Schema Integration ", Proceedings of the Workshop on Information Technology and Systems - WITS'95 , Vancouver, Canada, Dec.
  • " Screening Products for International Markets ", Proceedings of the 23rd EMAC Conference , Maastricht, The Netherlands, May 1994 (with S. Ram).
  • " Semantic Query Processing in large Scientific databases ", Massive Digital data Systems Workshop , Reston, VA, Feb 1, 1994.
  • " Composite and Grouping: Extending the Realm of Semantic Modeling ",forthcoming, Proceedings of the 26th Hawaii International Conference on System Sciences , Jan 1993, M auii, HI, (with V.C. Storey).
  • " Heterogeneous Distributed Databases for Concurrent Engineering ", Proceedings of the First Workshop on Enabling Technologies for Concurrent Engineering , Morgantown, W. Virginia, March 1992.
  • " Schema Integration and Semantic Query Processing in a Heterogeneous Distributed Database System ", Proceedings of the NSF Workshop on Heterogeneous Databases and Semantic Interoperability Boulder, CO, Feb 1992.
  • " A Unifying Semantic Model for Accessing Multiple Heterogeneous Databases in a Manufacturing Environment ", Proceedings of the First International Workshop on Interoperability Among Databases - IMS91 , April 1991, Kyoto, Japan (with E. Barkmeyer), pp. 212-215.
  • " Allocation of Databases in a Distributed Database Systems ", Proceedings of the Eleventh International Conference on Information Systems , Copenhagen, Dec. 1990 (with S . Narasimhan).
  • " Distributed Knowledge Based Systems to Support Computer Integrated Manufacturing ", Proceedings of CIMCON'90 , Gaithersburg, Washington DC., May 1990. (with D. Carl son and A. Jones).
  • " Using a Social Network to Integrate Distributed Knowledge Based Systems ",Proceedings of the 23rd Hawaii International Conference on System Sciences , Jan 1990 (with D . Carlson).
  • " Screening Innovations in the Telecommunications Industry: An Expert Systems Approach ", Proceedings of the 23rd Hawaii International Conference on System Sciences , Jan . 1990 (with S. Ram) {This paper was nominated for the Best Paper Award in the Expert Systems minitrack at the conference}.
  • " Multi-User View Integration System (MUVIS): An Expert System for View Integration ", Proceedings of the IEEE International Conference on Data Engineering , Feb. 1990 (w ith S. Hayne).
  • " Integration of Information Systems Technologies to Support Consultation in an Information Center ", Proceedings of the International Conference on Information Systems , Dec. 1989 (with S. Hayne, D. Carlson, and J.F. Nunamaker).
  • " Using Group Decision Support Tools for Knowledge Acquisition: An Information Center Application ", Transactions of DSS-89 , June 1989 (with I.Liou, S. Hayne, D. Carlson , and J.F. Nunamaker).
  • " An Object-Oriented Design for Distributed Knowledge Based Systems ",Proceedings, Twenty Second Hawaii International Conference on System Sciences , Jan. 1989 (with D. Carlson).
  • " An Architecture for Distributed Knowledge Based Systems ", Proceedings, AAAI Workshop on Databases in Large AI Systems , Minneapolis, Aug.1988 (with D. Carlson).
  • " An Expert System for Screening Innovations in the Financial Services Industry ",Proceedings, XV International Research Seminar in Marketing , La Londe L es Maures, Fran ce, May, 1988 (with S. Ram).
  • " The Synthesis Approach to Relational Database Design: An Expanded Perspective ", Proceedings, 21st Hawaii International Conference on System Sciences , Jan. 1988 (with S.M. Curran).
  • " Innovator: An Expert System for Screening New Products ", presented at the ORSA/TIMS Marketing Science Conference , March 1988, Seattle (with S. Ram).
  • " Design of Distributed Databases for An Automated Manufacturing Facility ",Proceedings, ASME International Computers in Engineering Conference , Aug. 1987 (with W. Davi s).
  • " Crisis Support Systems: Tools for Action ", Proceedings, DSS-87, Seventh International Conference on Decision Support Systems , June 1987 (with S. Weber and C. Smith).
  • " The File Allocation Problem - An Expanded Perspective ", Proceedings, Twentieth Hawaii International Conference on System Sciences , Hawaii, Jan 6-9, 1987.
  • " The Entity Relationship Model versus the Relational Model ", Proceedings, Sixth International Conference on the Entity Relationship Approach , New York, November, 1987.
  • " Report Generation Facility: A High Level Interface for Coherent Access to Heterogeneous Database Systems ", Proceedings, International Conference on Data Engineering , Feb. 1986 (with G. Belford and J. Liu et. al.).

  • "Survey of Cardinality Constraints for Snapshot, Temporal and Spatio-temporal Semantic Models", in Systems Analysis and Design for Advanced Modeling Methods: Best Practices (edited by A. Bajaj and S. Wrycza), IGI Global, ISBN 978-1-60566-344-9, April 2009 (with F. Currim), pp. 25-41.
  • "Understanding the Semantics of Data Provenance to Support Active Conceptual Modeling", in P. P. Chen and L. Y. Wong, (Eds): Proc. of the 1st International Workshop on Active Conceptual Modeling of Learning, LNCS 4512. Springer-Verlag, 2007, pp. 17-29 (with J. Liu).
  • "Clustering Similar Schema Elements across Heterogeneous Databases -- a First Step in Database Integration", in Advanced Topics in Database Research, Vol. 5, 2006, Edited by K. Siau, Idea Group Publishing, PA, ISBN: 1537-9299, pp. 227-248.
  • "Enabling Information Sharing Across Government Agencies", in Advanced Topics in Database Research, Edited by Keng Siau, Idea Group Publishing, Hershey, PA, ISBN: 1-59140-471-1, 2005, pp. 341-366.
  • "Towards Semantic Interoperability of Heterogeneous Biological Data Sources", in Oscar Pastor, João Falcão e Cunha (Eds.): Advanced Information Systems Engineering, 17th International Conference, CAiSE 2005, Porto, Portugal, June 13-17, 2005, Proceedings. Lecture Notes in Computer Science 3520 Springer 2005, ISBN 3-540-26095-1.
  • "Modeling the Semantics of 3D Protein Structures", in Lecture Notes in Computer Science 3288, P. Atzeni, W. Chu, H. Lu, S. Zhou, and T.K. Ling (eds) 2004, pp. 696-708 (with W. Wei).
  • "Infomediation for Ebusiness Supply Chains: A Semantics Based Approach", in Semantic Issues in Ecommerce Systems (R. Meersman, K. Aberer, T Dillon eds.), Kluwer Academic Publishers, 2003, pp. 205-220 (with V. Khatri, and Y, Hwang).
  • "GeoCosm: A Semantics Based Approach for Information Integration of GeoSpatial Data", in Lecture Notes in Computer Science 2465, Hiroshi Arisawa, Yahiko Kambayashi, Vijay Kumar, Heinrich C. Mayr, and Ingrid Hunt (Eds.), 2002, pp. 152-165 (with V. Khatri, L. Shang, and D. Zeng) 
  • "DISTIL: A Design Support Environment for Conceptual Modeling of Spatio Temporal Requirements", in Lecture Notes in Computer Science 2224, Hideko S. Kunii, Sushil Jajodia, and Arne Solvberg (eds.), 2001, pp. 70-83 (wht V. Khatri, R. Snodgrass, and Y. Hwang).
  • "Schema Integration: Methodology and Tools",in Heterogeneous Distributed Databases, Sheth, Rusinkiewicz, and Elmagarmid (eds.), Morgan Kaufman, 1999, pp. 119-155. (with Ramesh Venkataraman)
  • "Modeling Organizations as a Social Network of Distributed Knowledge Based Systems ", in Artificial Intelligence in Organizational Design: Modeling and Control , edited by R.W. Blanning and Dr. D.R. King , IEEE Computer Society Press, 1995 (With D. Carlson)
  • "An Object Oriented Design for Distributed Knowledge Based Systems ",in Object-Oriented Databases , edited by Ez Nahouraii and Fred Petry, IEEE Computer Society Press, March, 1991 (with D. Carlson).
  • "Crisis Support Systems: Recognizing and Managing Crisis ", in Readings in Decision Support and Executive Information Systems , edited by Paul Gray, Prentice Hall, 1991 (with S. Weber and C.A.P. Smith).

  • Wenli Zhang
    Natural Language Processing and Machine Learning for Chronic Disease Management and Prevention: Focus on Asthma
  • Yun Wang
    Mining Massive Spatiotemporal Data for Actionable Intelligence
  • Devipsita Bhattacharya
    Network Theoretic Approaches for Understanding and Analyzing Social Media Based News Article Propagation
  • Srikar Velichety
    Essays on Data Driven insights from Crowdsourcing, Social Media and Social Networks
  • Chang Heon Lee
    Dynamics of advice network and knowledge contribution: A longitudinal social network analysis, 2012 
  • Jun Liu
    W7 Model of Provenance and its application in the context of Wikipedia, 2010 
  • Ying Liu
    Multicriterion Market Segmentation: A Unified Model, Implementation and Evaluation, 2007 
  • Yousub Hwang
    Facilitating Web Service Discovery and Publishing: A Theoretical Framework, a Prototype System, and Evaluation, 2007
  • Limin Zhang
    Contextual Web Search Based on Semantic Relationships: A Theoretical Framework, Evaluation and a Medical Application Prototype, 2006 
  • Faiz Currim
    A Framework for Modeling Business Rules in Conceptual Database Design, 2004
  • Vijay Khatri
    Bridging the Spatio Temporal Semantic Gap: A theoretical Framework, Evaluation and a Prototype System, 2002 
  • Huimin Zhao
    Combining Schema and Instance Information for Integrating Heterogeneous Databases: An Analytical Approach and Empirical Evaluation, 2002
  • Jinsoo Park
    Facilitating Interoperability among Heterogeneous Geographic Database Systems, 1999 
  • Shailaja Venkatsubramanyan
    Discovering Distributed and Heterogeneous Resources over the Internet: A Theoretical Foundation for an Ontology-Driven Agent Based Model - It's Design, Implementation and Validation, 1999 
  • Divakaran Liginlal
    Building Fuzzy Front-End Decision Support Systems for New Product Introduction in Global Telecommunication Markets: A Fuzzy Measure-Theoretical Approach, 1999 
  • Ganesan Shankararanarayanan
    Dynamic Schema Evolution in a Heterogeneous Database Environment: A Graph Theoretic Approach, 1998 
  • Akhilesh Bajaj
    Managing Business Workflows Using a Database Approach: A Formal Model, A Case Study and A Prototype, 1997
  • Prabhudev Chennabasappa Konana
    A Transaction Model for Active and Real-Time Databases, 1995 
  • Ramesh Venkataraman
    Utilizing Integrity Constraint Knowledge in Heterogeneous Databases: A Methodology for Schema Integration and Semantic Query Processing, 1995
  • David Harold Olsen
    Concurrency Control in Object-Oriented Databases: A Mechanism and a Performance Study, 1993 
  • David Allen Carlson
    Mental Models For Strategic Management: Representation and Inference In A Management Support System, 1991
  • Stephen Charles Hayne
    The Application of Computer Supported Collaborative Work and Knowledge-Based Technology to the View Modeling and Integration Problems: A Multi-User View Integration System(MUVIS), 1990 

  • "Introduction to Conceptual Modeling", Data and Knowledge Engineering , Vol. 31, No. 3, Nov. 1999 pp. 225-226 ( with T.W. Ling)
  • "Data Management and Knowledge Discovery in Large Scientific Databases",Proceedings of the 27th Hawaii International Conference on System Sciences , Maui, Jan. 1994.
  • " A Knowledge-Based Approach for Screening Product Innovations ", Report No. 93-106, Marketing Science Institute , 1993, Boston, MA, 25 pp. (with S. Ram).
  • " Current Areas in Database Research ", Proceedings of the 26th Hawaii International Conference on System Sciences , Maui, Jan 1993.
  • " Integration of Heterogeneous Databases Using the Unifying Semantic Model ",Technical Report , National Institute of Standards and Technology, July 1991.
  • "A Unifying Semantic Model ", Technical Report , National Institute of Standards and Technology, Sept. 1989.
  • " Emerging Areas in Database Research ", an Introduction to the Software mini track on ``Database Formalisms, Software and Systems", Proceedings of the 22nd Hawaii International Conference on System Sciences", Hawaii, Jan 198 9.
  • " Practical Approach to Database Design ", Journal of the Tucson Computer Societies" ,Oct. 1987.
  • " Data Integration Strategies for Computer Integrated Manufacturing ", Technical report, NIST IR-88-4002 , National Institute of Standards and Technology, Gaithersburg, MD, Nov. 1988 (with A. Jones, and W. Davis).