Shamkant B. Navathe

Syd: A middleware testbed for collaborative applications over small heterogeneous devices and data stores (2009)

Sushil K. Prasad, Vijay Madisetti, Shamkant B. Navathe, Raj Sunderraman, Erdogan Dogdu, Anu Bourgeois, ...

Abstract. Developing a collaborative application running on a collection of heterogeneous, possibly mobile, devices, each potentially hosting data stores, using existing middleware technologies such...

ABSTRACT Scalability Issues in Mobile Database Applications (2008)

Shamkant B. Navathe

In this paper, we discuss performance issues surrounding mobile database management systems. In particular, we focus on scalability issues that arise when a client-server database is migrated to the...

Investigation into Biomedical Literature Classification using Support Vector Machines *Corresponding Author (2008)

Nalini Polavarapu, Shamkant B. Navathe, Ramprasad Ramnarayanan, Abrar Ul Haque, Saurav Sahay, Ying Liu

Specific topic search in the PubMed Database, one of the most important information resources for scientific community, presents a big challenge to the users. The researcher typically formulates...

Investigation into Biomedical Literature Classification using Support Vector Machines *Corresponding Author (2008)

Nalini Polavarapu, Shamkant B. Navathe, Ramprasad Ramnarayanan, Abrar Ul Haque, Saurav Sahay, Ying Liu

Specific topic search in the PubMed Database, one of the most important information resources for scientific community, presents a big challenge to the users. The researcher typically formulates...

* Correspondence Author. Abstract (2008)

Ying Liu, Venu Dasigi, Brian J. Ciliax, Ashwin Ram, Ray Dingledine, Karin Borges, ...

One of the key challenges of microarray studies is to derive biological insights from the unprecedented quantities of data on gene-expression patterns. Clustering genes by functional keyword...

Assessing Damages of Information Security Incidents and Selecting Control Measures, a Case Study Approach (2008)

Fariborz Farahm, Shamkant B. Navathe, Gunter P. Sharp, Philip H. Enslow

Information security executives have always been faced with the problem of justifying security technology investments because the technology benefits are difficult to estimate. There are tangible and...

Text mining biomedical literature for discovering gene-to-gene relationships: a comparative study of algorithms (2005)

Ying Liu, Shamkant B. Navathe, Jorge Civera, Venu Dasigi, Ashwin Ram, Brian J. Ciliax, ...

Abstract—Partitioning closely related genes into clusters has become an important element of practically all statistical analyses of microarray data. A number of computer algorithms have been...

MITOMAP: a human mitochondrial genome database--2004 update (2005)

Brandon, Marty C., Lott, Marie T., Nguyen, Kevin Cuong, Spolim, Syawal, Navathe, Shamkant B., Baldi, Pierre, ...

MITOMAP (http://www.MITOMAP.org), a database for the human mitochondrial genome, has grown rapidly in data content over the past several years as interest in the role of mitochondrial DNA (mtDNA)...

Predictive Filtering: A Learning-Based Approach to Data Stream Filtering (2004)

Vibhore Kumar, Brian F Cooper, Shamkant B Navathe

Recent years have witnessed an increasing interest in filtering of distributed data streams, such as those produced by networked sensors. The focus is to conserve bandwidth and sensor battery power...

Semantic Integrity Constraint Checking for Multiple XML Databases (2004)

Praveen Madiraju, Rajshekhar Sunderraman, Shamkant B. Navathe

Global semantic integrity constraints ensure integrity and consistency of data spanning multiple databases. In this paper, we take the initial steps towards representing global semantic integrity...

Semantic Integrity Constraint Checking for Multiple XML Databases (2004)

Praveen Madiraju, Rajshekhar Sunderraman, Shamkant B. Navathe, Haibin Wang

Global semantic integrity constraints ensure integrity and consistency of data spanning multiple databases. In this paper, we take the initial steps towards representing global semantic integrity...

Fast data access on multiple broadcast streams (2003)

Wai Gen Yee, Shamkant B. Navathe

¡ waigen, sham ¢ cc.gatech.edu This paper gives an overview on techniques for quickly finding items that are broadcast on multiple data channels. Previous works assume that throughput increases...

FUSION: A system allowing dynamic web service composition and automatic execution (2003)

Debra Vandermeer, Helen Thomas, Anindya Datta, Chutney Technologyies, Krithi Ramamritham, Kaushik Dutta, ...

Service portals are systems which expose a bundle of web services to the user, allowing the specification and subsequent execution of complex tasks defined over these individual services. Examples of...

Minimizing Redundant Work in Lazily Updated Replicated Databases (2000)

Yee, Wai Gen, Omiecinski, Edward Robert, Navathe, Shamkant B.

Modern databases which manage lazy (or deferred updates) to clients which subscribe to replicated data do so on a client-by-client basis. They ignore any redundant work done during update processing...

A Framework for Server Data Fragment Grouping to Improve Server Scalability in Intermittently Synchronized Databases (2000)

Wai Gen Yee, Michael J. Donahoo, Shamkant B. Navathe

We consider the class of mobile computing applications with periodically connected clients. These clients wish to share data; however, due to the expense of mobile communication, they only connect...

Minimizing Redundant Work in Lazily Updated Replicated Databases (2000)

Yee, Wai Gen, Omiecinski, Edward Robert, Navathe, Shamkant B.

Modern databases which manage lazy (or deferred updates) to clients which subscribe to replicated data do so on a client-by-client basis. They ignore any redundant work done during update processing...

A Mathematical Optimization Approach To Improve Server Scalability In Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Navathe, Shamkant B., Datta, Anindya, Mitra, Saby

This paper addresses a scalability problem in the process of synchronizing the states of multiple client databases which only have deferred access to the server. It turns out that the process of...

A Greedy Approach For Improving Update Processing In Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Omiecinski, Edward Robert, Navathe, Shamkant B., Ammar, Mostafa H. (Mostafa Hamed), Donahoo, Michael J., Malik, Sanjoy

Replication of data on portable computers is a new DBMS technology aimed at catering to a growing population of mobile database users. Clients can download data items such as email, or sales data...

A Clustering Algorithm to Discover Low and High Density Hyper-Rectangles in Subspaces of Multidimensional Data. (1999)

Ordonez, Carlos, Omiecinski, Edward Robert, Navathe, Shamkant B., Ezquerra, Norberto F.

This paper presents a clustering algorithm to discover low and high density regions in subspaces of multidimensional data for Data Mining applications. High density regions generally refer to typical...

Toward A Method of Grouping Server Data Fragments for Improving Scalability in Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Donahoo, Michael J., Navathe, Shamkant B.

We consider the class of mobile computing applications with periodically connected clients. These clients wish to share data; however, due to the expense of mobile communication, they only connect...

A Mathematical Optimization Approach To Improve Server Scalability In Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Navathe, Shamkant B., Datta, Anindya, Mitra, Saby

This paper addresses a scalability problem in the process of synchronizing the states of multiple client databases which only have deferred access to the server. It turns out that the process of...

A Greedy Approach For Improving Update Processing In Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Omiecinski, Edward Robert, Navathe, Shamkant B., Ammar, Mostafa H. (Mostafa Hamed), Donahoo, Michael J., Malik, Sanjoy

Replication of data on portable computers is a new DBMS technology aimed at catering to a growing population of mobile database users. Clients can download data items such as email, or sales data...

A Clustering Algorithm to Discover Low and High Density Hyper-Rectangles in Subspaces of Multidimensional Data. (1999)

Ordońẽz, Carlos, Omiecinski, Edward Robert, Navathe, Shamkant B., Ezquerra, Norberto F.

This paper presents a clustering algorithm to discover low and high density regions in subspaces of multidimensional data for Data Mining applications. High density regions generally refer to typical...

Toward A Method of Grouping Server Data Fragments for Improving Scalability in Intermittently Synchronized Databases (1999)

Yee, Wai Gen, Donahoo, Michael J., Navathe, Shamkant B.

We consider the class of mobile computing applications with periodically connected clients. These clients wish to share data; however, due to the expense of mobile communication, they only connect...

A Knowledge-Based Approach to Integrating and Querying Distributed Information Systems Heterogeneous Intelligent Processing for Engineering Design (HIPED) (1998)

Navathe, Shamkant B.

This program develops techniques which allows for the interactive access of dissimilar data sources; the informed processing of the resultant search; and the capture of the associated knowledge...

MITOMAP: a human mitochondrial genome database (1998)

Andreas Kogelnik, Marie T. Lott, Michael D. Brown, Shamkant B. Navathe, Douglas C. Wallace

We have developed a comprehensive database (MITOMAP) for the human mitochondrial DNA (mtDNA), the first component of the human genome to be completely sequenced [Anderson et al. (1981) Nature 290,...

MITOMAP: a human mitochondrial genome database—1998 update (1998)

Andreas M. Kogelnik, Marie T. Lott, Michael D. Brown, Shamkant B. Navathe, Douglas C. Wallace

We have developed a comprehensive database (MITO-MAP) for the human mitochondrial DNA (mtDNA), the first component of the human genome to be completely sequenced [Anderson et al. (1981) Nature 290,...

MITOMAP: a human mitochondrial genome database---1998 update (1997)

Andreas Kogelnik, Marie T. Lott, Michael D. Brown, Shamkant B. Navathe, Douglas C. Wallace

We have continued to develop MITOMAP (http://www.gen.emory.edu/MITOMAP ), a comprehensive database for the human mitochondrial DNA (mtDNA). MITOMAP uses the mtDNA sequence as the unifying element for...

Two Techniques for On-Line Index Modification in Shared Nothing Parallel Databases (1996)

Kiran Achyutuni, Edward Omiecinski, Shamkant B. Navathe

this paper, we study two alternatives to index modification, namely OAT (One-At-a-Time page movement) and BULK (bulk page movement). OAT and BULK are two extremes on the spectrum of the granularity...

Optimal Redesign Policies to Support Dynamic Processing of Applications on a Distributed Relational Database System (1996)

Kamalakar Karlapalem, Shamkant B. Navathe, Mostafa Ammar

An application processing center consists of a set of well-defined, well-designed and well-tested applications that are dynamically executed over a period of time. We assume that there is a set of...

Rule Based Database Integration in HIPED: Heterogeneous Intelligent Processing in Engineering Design (1996)

Shamkant B. Navathe, Sameer Mahajan, Edward Omiecinski

In this paper 1 we describe one aspect of our research in the project called HIPED, which addressed the problem of performing design of engineering devices by accessing heterogeneous databases. The...

Querying, Navigating and Visualizing an Online Library Catalog (1995)

Veerasamy, Aravindan, Hudson, Scott E., Navathe, Shamkant B.

We describe the design of an User Interface for a ranked output Information Retrieval system that integrates querying, navigation and visualization in a seamless fashion. Highlights of the system...

The Impact Of Data Placement Strategies On Reorganization Costs In Parallel Databases (1995)

Achyutuni, Kiran Jyotsna, Omiecinski, Edward Robert, Navathe, Shamkant B.

In this paper, we study the data placement problem from a reorganization point of view. Effective placement of the declustered fragments of a relation is crucial to the performance of parallel...

An Efficient Algorithm for Mining Association Rules in Large Databases (1995)

Savasere, Ashok, Omiecinski, Edward Robert, Navathe, Shamkant B.

Mining for association rules between items in a large database of sales transactions has been described as an important database mining problem. In this paper we present an efficient algorithm for...

Towards Intelligent Integration of Heterogeneous Information Sources (1995)

Shamkant B. Navathe, Michael J. Donahoo

Current methodologies for information integration are inadequate for solving the problem of integration of large scale, distributed information sources (e.g. databases, free-form text, simulation...

The Impact of Data Placement Strategies on Reorganization Costs in Parallel Databases (1995)

Kiran J. Achyutuni, Edward Omiecinski, Shamkant B. Navathe

In this paper, we study the data placement problem from a reorganization point of view. Effective placement of the declustered fragments of a relation is crucial to the performance of parallel...

A Mixed Fragmentation Methodology for Initial Distributed Database Design (1995)

Shamkant B. Navathe, Kamalakar Karlapalem, Minyoung Ra

We define mixed fragmentation as a process of simultaneously applying the horizontal and vertical fragmentation on a relation. It can be achieved in one of two ways: by performing horizontal...

Querying, Navigating and Visualizing an Online Library Catalog (1995)

Veerasamy, Aravindan, Hudson, Scott E., Navathe, Shamkant B.

We describe the design of an User Interface for a ranked output Information Retrieval system that integrates querying, navigation and visualization in a seamless fashion. Highlights of the system...

The Impact Of Data Placement Strategies On Reorganization Costs In Parallel Databases (1995)

Achyutuni, Kiran Jyotsna, Omiecinski, Edward Robert, Navathe, Shamkant B.

In this paper, we study the data placement problem from a reorganization point of view. Effective placement of the declustered fragments of a relation is crucial to the performance of parallel...

An Efficient Algorithm for Mining Association Rules in Large Databases (1995)

Savasere, Ashok, Omiecinski, Edward Robert, Navathe, Shamkant B.

Mining for association rules between items in a large database of sales transactions has been described as an important database mining problem. In this paper we present an efficient algorithm for...

Adaptive and Automated Index Selection in Relational DBMS (1994)

Frank, Martin Robert, Omiecinski, Edward Robert, Navathe, Shamkant B.

We present a novel approach for a tool that assists the database administrator in designing an index configuration for a relational database system. A new methodology for collecting usage statistics...

Specification and Efficient Monitoring of Local Graph-based Constraints in Hypermedia Systems (1994)

Arnold, Stephen, Mark, Leo, Navathe, Shamkant B.

The concept of hypermedia has existed for about fifty years. It became a practical technology in the seventies, and widely available in the eighties. The concept has proven quite useful as a paradigm...

Materialization of Redesigned Distributed Relational Databases (1994)

Kamalakar Karlapalem, Shamkant B. Navathe

The changes in the distributed database environment during its lifetime necessitate a redesign of the distributed databases so as to keep the performance of the applications/transactions from...

Adaptive and Automated Index Selection in Relational DBMS (1994)

Frank, Martin Robert, Omiecinski, Edward Robert, Navathe, Shamkant B.

We present a novel approach for a tool that assists the database administrator in designing an index configuration for a relational database system. A new methodology for collecting usage statistics...

Specification and Efficient Monitoring of Local Graph-based Constraints in Hypermedia Systems (1994)

Arnold, Stephen, Mark, Leo, Navathe, Shamkant B.

The concept of hypermedia has existed for about fifty years. It became a practical technology in the seventies, and widely available in the eighties. The concept has proven quite useful as a paradigm...

An Objective Function for Vertically Partitioning Relations in Distributed Databases and its Analysis (1992)

Sharma Chakravarthy, Jaykumar Muthuraj, Ravi Varadarajan, Shamkant B. Navathe

The design of distributed databases is an optimization problem requiring solutions to several interrelated problems including: data fragmentation, allocation, and local optimization. Each problem can...

Adaptive and Automated Index Selection in RDBMS (1992)

Martin R. Frank, Edward R. Omiecinski, Shamkant B. Navathe

this paper the ISP refers to tailoring the index configuration to the database usage profile, not to selecting an index set to process a single query. The singlerelation ISP denotes the ISP reduced...

Database Supported Cooperative Problem Solving (1992)

S. Chakravarthy, K. Karlapalem, S. B. Navathe, A. Tanaka, Kamalakar Karlapalem, Shamkant B. Navathe, ...

There are a number of problems in office environments, medical diagnosis, and planning that require cooperation among agents (either active or passive) for their solutions. Briefly, cooperative...

An Extended Disjunctive Normal Form Approach for Optimizing Recursive Logic Queries in Loosely Coupled Environments (1987)

Whang, Kyu-Young, Navathe, Shamkant B.

We present an approach to processing logic queries in loosely coupled environments. We emphasize the importance of the loose coupling technique as a practkal solution to provide deductive capabiities...

MITOMAP: a human mitochondrial genome database—2004 update

Brandon, Marty C., Lott, Marie T., Nguyen, Kevin Cuong, Spolim, Syawal, Navathe, Shamkant B., Baldi, Pierre, ...

MITOMAP (http://www.MITOMAP.org), a database for the human mitochondrial genome, has grown rapidly in data content over the past several years as interest in the role of mitochondrial DNA (mtDNA)...

MITOMAP: a human mitochondrial genome database—2004 update

Brandon, Marty C., Lott, Marie T., Nguyen, Kevin Cuong, Spolim, Syawal, Navathe, Shamkant B., Baldi, Pierre, ...

MITOMAP (http://www.MITOMAP.org), a database for the human mitochondrial genome, has grown rapidly in data content over the past several years as interest in the role of mitochondrial DNA (mtDNA)...