Swarup Acharya

Abstract Selectivity Estimation in Spatial Databases (2008)

Swarup Acharya, Viswanath Poosala, Sridhar Ramaswamy

swarup,poosala¢ Selectivity estimation of queries is an important and wellstudied problem in relational database systems. In this paper, we examine selectivity estimation in the context of...

Abstract (2008)

Swarup Acharya, Rafael Alonso

This paper proposes the use of repetitive broadcast as a way of augmenting the memory hierarchy of clients in an asymmetric communication environment. We describe a new technique called “Broadcast...

Abstract Selectivity Estimation in Spatial Databases (2008)

Swarup Acharya, Viswanath Poosala, Sridhar Ramaswamy

Selectivity estimation of queries is an important and well-studied problem in relational database systems. In this paper, we examine selectivity estimation in the context of Geographic Information...

IP-Subnet Aware Routing in WDM Mesh Networks (2007)

Swarup Acharya, Bhawna Gupta, Pankaj Risbood, Anurag Srivastava

Abstract — We explore the problem of routing bandwidth guaranteed paths in wavelength-routed, WDM optical mesh networks. A WDM mesh network offers great flexibility in dynamically re-configuring...

PESO: Low Overhead Protection for Ethernet over SONET Transport (2004)

Swarup Acharya, Bhawna Gupta, Pankaj Risbood, Anurag Srivastava

Abstract — This paper addresses the issue of reliable transport of emerging data services in Ethernet over SONET (EoS) networks that require protection guarantees beyond standard best effort...

MöbiPack: Optimal Hitless SONET Defragmentation in Near-Optimal Cost (2004)

Swarup Acharya, Bhawna Gupta, Pankaj Risbood, Anurag Srivastava

We study the problem of bandwidth fragmentation in links that comprise rings and meshes in SONET networks. Fragmentation is a serious challenge for network operators since it creates...

Application and Infrastructure Challenges in Pervasive Computing (2002)

Swarup Acharya

The technological advances over the last few years has revolutionized the world of personal computing. Today, hand-

Congressional samples for approximate answering of group-by queries (2000)

Swarup Acharya, Phillip B. Gibbons, Viswanath Poosala

In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex decision support queries using precomputed summary statistics, such as samples....

Join synopses for approximate query answering (1999)

Swarup Acharya, Phillip B. Gibbons, Viswanath Poosala, Sridhar Ramaswamy

In large data warehousing environments, it is often advantageous to provide fast, approximate answers to complex aggregate queries based on statistical summaries of the full data. In this paper, we...

Aqua: A fast decision support system using approximate query answers (1999)

Swarup Acharya, Phillip B. Gibbons, Viswanath Poosala

Aqua is a system for providing fast, approximate answers to aggregate queries, which are very common in OLAP applications. It has been designed to run on top of any commercial relational DBMS. Aqua...

Aqua: A fast decision support system using approximate query answers (1999)

Swarup Acharya, Phillip B. Gibbons, Viswanath Poosala

Aqua is a system for providing fast, approximate answers to aggregate queries, which are very common in OLAP applications. It has been designed to run on top of any commercial relational DBMS. Aqua...

Date (1998)

Swarup Acharya, Stanley B. Zdonik, Maurice P. Herlihy, Michael J. Franklin

The increasing ability to interconnect computers through internetworking, wireless networks, high-bandwidth satellite, and cable networkshas spawned a new class of information-centered applications...

Broadcast Disks: Dissemination-based Data Management for Asymmetric Communication Environments (1997)

Swarup Acharya, Swarup Acharya, B. Zdonik, Maurice P. Herlihy, Michael J. Franklin

The increasing ability to interconnect computers through internetworking, wireless networks, high-bandwidth satellite, and cable networkshas spawned a new class of information-centered applications...

Prefetching from a broadcast disk (1996)

Swarup Acharya, Michael Franklin

Broadcast Disks have been proposed as a means to efficiently deliver data to clients in “asymmetric ” environments where the available bandwidth from the server to the clients greatly exceeds the...

Prefetching from a Broadcast Disk (1996)

Swarup Acharya, Michael Franklin, Stanley Zdonik

Broadcast Disks have been proposed as a means to efficiently deliver data to clients in "asymmetric" environments where the available bandwidth from the server to the clients greatly...

Disseminating Updates on Broadcast Disks (1996)

Swarup Acharya, Michael Franklin, Stanley Zdonik

Lately there has been increasing interest in the use of data dissemination as a means for delivering data from servers to clients in both wired and wireless environments. Using data dissemination,...

Disseminating updates on broadcast disks (1996)

Swarup Acharya, Michael Franklin

Lately there has been increasing interest in the use of data dissemination as a means for delivering data from servers to clients in both wired and wireless environ-ments. Using data dissemination,...

Disseminating updates on broadcast disks (1996)

Swarup Acharya

Lately there has been increasing interest in the use of data dissemination as a means for delivering data from servers to clients in both wired and wireless environments. Using data dissemination,...

Broadcast Disks: Data Management for Asymmetric Communication Environments (1995)

Swarup Acharya, Rafael Alonso, Michael Franklin, Stanley Zdonik

This paper proposes the use of repetitive broadcast as a way of augmenting the memory hierarchy of clients in an asymmetric communication environment. We describe a new technique called...

Dissemination-based Data Delivery Using Broadcast Disks (1995)

Swarup Acharya, Michael Franklin, Stanley Zdonik

Mobile computers and wireless networks are emerging technologies which promise to make ubiquitous computing a reality. One challenge that must be met in order to truly realize this potential is that...

Broadcast Disks: Data Management for Asymmetric Communication Environments (1995)

Swarup Acharya, Rafael Alonso, Michael Franklin, Stanley Zdonik

This paper proposes the use of repetitive broadcast as a way of augmenting the memory hierarchy of clients in an asymmetric communication environment. We describe a new technique called...

Broadcast Disks: Data Management for Asymmetric Communication Environments (1994)

Acharya, Swarup, Alon, Rafael, Franklin, Michael J., Zdonik, Stanley

This paper proposes the use of repetitive broadcast as a way of augmenting the memory hierarchy of clients in an asymmetric communication environment. We describe a new technique called "Broadcast...

Broadcast Disks: Data Management for Asymmetric Communication Environments (1994)

Acharya, Swarup, Alon, Rafael, Franklin, Michael J., Zdonik, Stanley

This paper proposes the use of repetitive broadcast as a way of augmenting the memory hierarchy of clients in an asymmetric communication environment. We describe a new technique called "Broadcast...

Are "Disks in the Air" Just Pie in the Sky? (1994)

Stanley Zdonik Dept, Stanley Zdonik, Michael Franklin, Rafael Alonso, Swarup Acharya

Mobile computers and wireless networks are emerging technologies which will soon make ubiquitous computing a reality. In the wireless environment, mobile clients may often be disconnected from...

Are "Disks in the Air" Just Pie in the Sky? (1994)

Stanley Zdonik, Michael Franklin, Rafael Alonso, Swarup Acharya

Mobile computers and wireless networks are emerging technologies which will soon make ubiquitous computing a reality. In the wireless environment, mobile clients may often be disconnected from...

Are "Disks in the Air" Just Pie in the Sky? (1994)

Stanley Zdonik, Michael Franklin, Rafael Alonso, Swarup Acharya

Mobile computers and wireless networks are emerging technologies which will soon make ubiquitous computing a reality. In the wireless environment, mobile clients may often be disconnected from...

Are "Disks in the Air" Just Pie in the Sky? (1994)

Stanley Zdonik, Michael Franklin, Rafael Alonso, Swarup Acharya

Mobile computers and wireless networks are emerging technologies which will soon make ubiquitous computing a reality. In the wireless environment, mobile clients may often be disconnected from...

An Efficient Scheme for Dynamic Data Replication (1993)

Swarup Acharya, Swarup Acharya, Stanley B. Zdonik, Stanley B. Zdonik

This paper presents an efficient scheme for dynamic replication of data in distributed environments. The aim of the scheme is to increase system performance by intelligent data placement so as to...

Balancing Push and Pull for Data Broadcast

Swarup Acharya, Michael Franklin, Stanley Zdonik

The increasing ability to interconnect computers through internetworking,wireless networks, high-bandwidth satellite, and cable networks has spawned a new class of information-centered applications...