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Displaying 1-20 out of 20 total
A Blackboard-Based Cooperative System for Schema Integration
Found in: IEEE Intelligent Systems
By Sudha Ram, Venkataraman Ramesh
Issue Date:June 1995
pp. 56-62
<p>We describe a four-level blackboard architecture that supports schema integration and provide a detailed description of the communication among human and computational agents that this system allows.</p> <p>Today's corporate informatio...
Guest Editor's Introduction: Heterogeneous Distributed Database Systems
Found in: Computer
By Sudha Ram
Issue Date:December 1991
pp. 7-10
No summary available.
Screening Financial Innovations: An Expert System Approach
Found in: IEEE Intelligent Systems
By Sudha Ram, Sundaresan Ram
Issue Date:August 1990
pp. 20-28
<p>An expert system, called Innovator, that helps a financial-service organization (FSO) evaluate new products it does not currently offer is described. Innovator was implemented using a rule-based expert system shell called Expert System Environment...
Capturing Telic/Atelic Temporal Data Semantics: Generalizing Conventional Conceptual Models
Found in: IEEE Transactions on Knowledge and Data Engineering
By Vijay Khatri,Sudha Ram,Richard T. Snodgrass,Paolo Terenziani
Issue Date:March 2014
pp. 528-548
Time provides context for all our experiences, cognition, and coordinated collective action. Prior research in linguistics, artificial intelligence, and temporal databases suggests the need to differentiate between temporal facts with goal-related semantic...
Next-Generation Team-Science Platform for Scientific Collaboration
Found in: IEEE Intelligent Systems
By Xiaolong Zheng,Guanyan Ke,Daniel D. Zeng,Sudha Ram,Hao Lu
Issue Date:November 2011
pp. 72-76
Emerging research on team science aims at better understanding the key contextual factors during the trans-disciplinary scientific collaboration process and enhancing the outcomes of large-scale collaborative research programs. Team science can range from ...
Semantics Based Operators for Integrating Heterogeneous Biological Data Sources
Found in: Systems Engineering, International Conference on
By Sudha Ram, Wei Wei
Issue Date:August 2005
pp. 16-21
Advances in analytical techniques have drastically increased the amount of biological data available, which in turn has increased the difficulty and complexity of biological knowledge discovery. It is important to have mechanisms to take full advantage of ...
Augmenting a Conceptual Model with Geospatiotemporal Annotations
Found in: IEEE Transactions on Knowledge and Data Engineering
By Vijay Khatri, Sudha Ram, Richard T. Snodgrass
Issue Date:November 2004
pp. 1324-1338
While many real-world applications need to organize data based on space (e.g., geology, geomarketing, environmental modeling) and/or time (e.g., accounting, inventory management, personnel management), existing conventional conceptual models do not provide...
Constrained Cascade Generalization of Decision Trees
Found in: IEEE Transactions on Knowledge and Data Engineering
By Huimin Zhao, Sudha Ram
Issue Date:June 2004
pp. 727-739
<p><b>Abstract</b>—While <it>decision tree</it> techniques have been widely used in <it>classification</it> applications, a shortcoming of many decision tree inducers is that they do not learn intermediate concepts...
Semantic Conflict Resolution Ontology (SCROL): An Ontology for Detecting and Resolving Data and Schema-Level Semantic Conflicts
Found in: IEEE Transactions on Knowledge and Data Engineering
By Sudha Ram, Jinsoo Park
Issue Date:February 2004
pp. 189-202
<p><b>Abstract</b>—Establishing semantic interoperability among heterogeneous information sources has been a critical issue in the database community for the past two decades. Despite the critical importance, current approaches to semanti...
Modeling and Navigation of Large Information Spaces: A Semantics Based Approach
Found in: Hawaii International Conference on System Sciences
By Sudha Ram, G. Shankaranarayanan
Issue Date:January 1999
pp. 6020
In this paper we present techniques for modeling the semantics of large information spaces and for navigating them. This information space represents heterogeneous data stored in different formats and distributed across multiple locations on the Internet. ...
Resource Discovery and Intelligent Image Retrieval in a Distributed Environment
Found in: Hawaii International Conference on System Sciences
By Sudha Ram, Shailaja Venkatsubramanyan, Stuart Marsh, George Ball
Issue Date:January 1997
pp. 340
Remote sensing satellites are generating large amounts of (image) data at different levels of temporal, spatial and spectral resolution, with varying levels of detail, and at various stages of processing with a variety of algorithms. This bewildering array...
Conceptually modeling windows and bounds for space and time in database constraints
Found in: Communications of the ACM
By Faiz Currim, Sudha Ram, Faiz Currim, Sudha Ram
Issue Date:November 2008
pp. 125-129
During the last decade, multidimensional databases have become common in the business and scientific worlds. Analysis places significant demands on the interfaces to these databases. It must be possible for analysts to easily and incrementally change both ...
Using a Network Analysis Approach for Organizing Social Bookmarking Tags and Enabling Web Content Discovery
Found in: ACM Transactions on Management Information Systems (TMIS)
By Sudha Ram, Wei Wei
Issue Date:October 2012
pp. 1-16
This article describes an innovative approach to reorganizing the tag space generated by social bookmarking services. The objective of this work is to enable effective search and discovery of Web content using social bookmarking tags. Tags are metadata gen...
Who does what: Collaboration patterns in the wikipedia and their impact on article quality
Found in: ACM Transactions on Management Information Systems (TMIS)
By Jun Liu, Sudha Ram
Issue Date:June 2011
pp. 1-23
The quality of Wikipedia articles is debatable. On the one hand, existing research indicates that not only are people willing to contribute articles but the quality of these articles is close to that found in conventional encyclopedias. On the other hand, ...
Information systems interoperability: What lies beneath?
Found in: ACM Transactions on Information Systems (TOIS)
By Jinsoo Park, Sudha Ram
Issue Date:October 2004
pp. 595-632
Interoperability is the most critical issue facing businesses that need to access information from multiple information systems. Our objective in this research is to develop a comprehensive framework and methodology to facilitate semantic interoperability ...
Storage allocation in web prefetching techniques
Found in: Proceedings of the conference on Electronic commerce (EC '03)
By Daniel D. Zeng, Fei-Yue Wang, Sudha Ram
Issue Date:June 2003
pp. 264-265
We propose a new identity-based signature scheme from Weil pairing or Tate pairing. We prove that the confirmation and denial protocols of our scheme have the completeness and soundness properties. Our scheme is efficient in computation.
Collaborative conceptual schema design: a process model and prototype system
Found in: ACM Transactions on Information Systems (TOIS)
By Sudha Ram, V. Ramesh
Issue Date:January 1992
pp. 347-371
Recent years have seen an increased interest in providing support for collaborative activities among groups of users participating in various information systems design tasks such as, requirements determination and process modeling. However, little attenti...
HyperIntelligence: the next frontier
Found in: Communications of the ACM
By David A. Carlson, Sudha Ram
Issue Date:January 1988
pp. 311-321
The authors discuss how mental models may be used to organize an individual's thoughts while forming a plan. A hypermedia system, SPRINT, is described which supports an explicit representation of a mental model as a network of associations among the elemen...
Deriving functional dependencies from the entity-relationship model
Found in: Communications of the ACM
By Sudha Ram
Issue Date:January 1988
pp. 95-111
The online Risks Forum has long been a hotbed for discussions of the relative merits of openness relating to the dissemination of knowledge about security vulnerabilities. The debate has now been rekindled, and is summarized here.
A model for the design of distributed databases (abstract only)
Found in: Proceedings of the 1985 ACM thirteenth annual conference on Computer Science (CSC '85)
By Geneva G. Belford, Sudha Ram
Issue Date:March 1985
pp. 428
This research is addressed towards solving a problem which falls under the general class of File Allocation Problems (FAP). The main purpose here is to provide a tool for the designer of a distributed database system. With an increasing number of enterpris...