Rajarshi Das

An Interface for Collaborative Digital Forensics (2008)

Das, Rajarshi

This thesis presents a novel interface for collaborative Digital Forensics. The improvement in the process management and remote access apropos of the use of current Digital Forensic tools in the...

Choosing Samples to Compute Heuristic-Strategy Nash (2004)

William E. Walsh, David C. Parkes, Rajarshi Das

Auctions define games of incomplete information for which it is often too hard to compute the exact Bayesian-Nash equilibrium. Instead, the infinite strategy space is often populated with heuristic...

A Multi-Agent Systems Approach to Autonomic Computing (2004)

Gerald Tesauro, David M. Chess, William E. Walsh, Rajarshi Das, Alla Segal, Ian Whalley, ...

The goal of autonomic computing is to create computing systems capable of managing themselves to a far greater extent than they do today. This paper presents Unity, a decentralized architecture for...

Cooperative Negotiation in Autonomic Systems using Incremental Utility (2003)

Craig Boutilier, Rajarshi Das, Jeffrey O. Kephart, Gerald Tesauro, William E. Walsh

Decentralized resource allocation is a key problem for large-scale autonomic (or self-managing) computing systems. Motivated by a data center scenario, we explore efficient techniques for resolving...

Model Selection in an Information Economy: Choosing what to Learn (2002)

Brooks, Christopher H., Gazzale, Robert S., Das, Rajarshi, Kephart, Jeffrey O., MacKie-Mason, Jeffrey K., Durfee, Edmund H.

In an economy in which a producer must learn the preferences of a consumer population, it is faced with a classic decision problem: when to explore and when to exploit. If the producer has a limited...

Information Bundling in a Dynamic Environment (2002)

Christopher H. Brooks, Rajarshi Das, Jeffrey O. Kephart, Robert S. Gazzale, Edmund H. Durfee

Digital information goods potentially provide information producers with a new set of strategies, or price schedules, for offering these goods to a consumer population. If consumer preferences are...

Model Selection in an Information Economy: Choosing what to learn (2002)

Christopher H. Brooks, Robert S. Gazzale, Rajarshi Das, Jeffrey O. Kephart, Edmund H. Durfee

As online markets for the exchange of goods and services become more common, the study of markets composed at least in part of autonomous agents has taken on increasing importance. In contrast to...

Model Selection in an Information Economy: Choosing what to learn (2002)

Christopher H. Brooks, Robert S. Gazzale, Rajarshi Das, Jeffrey O. Kephart, Edmund H. Durfee

In an economy in which a producer must learn the preferences of a consumer population, it is faced with a classic decision problem: when to explore and when to exploit. If the producer has a limited...

Price Wars and Niche Discovery in an Information Economy (2001)

Christopher H. Brooks, Edmund H. Durfee, Rajarshi Das

Electronic goods are exible and have negligible marginal costs. These features allow a producer of electronic goods to explore pricing schemes, and in particular bundling, that would not be feasible...

Information Bundling in a Dynamic Environment (2001)

Brooks, Christopher H., Das, Rajarshi, Kephart, Jeffrey O., MacKie-Mason, Jeffrey K., Gazzale, Robert S., Durfee, Edmund H.

Markets for digital information goods provide the possibility of exploring new and more complex pricing schemes, due to information goods' flexibility and negligible marginal cost. In this paper we...

High-Performance Bidding Agents for the Continuous Double Auction (2001)

Gerald Tesauro, Rajarshi Das

We develop two bidding algorithms for real-time Continuous Double Auctions (CDAs) using a variety of market rules that o#er what we believe to be the strongest known performance of any published...

High-Performance Bidding Agents for the Continuous (2001)

Gerald Tesauro, Rajarshi Das

An increasingly important focus in agent-based electronic commerce is the design of robust heuristic bidding algorithms for a variety of auctions, including the Continuous Double Auction institution...

Agent-Human Interactions in the Continuous Double Auction (2001)

Rajarshi Das, James E. Hanson, Jeffrey O. Kephart, Gerald Tesauro

The Continuous Double Auction (CDA) is the dominant market institution for real-world trading of equities, commodities, derivatives, etc. We describe a series of laboratory experiments that, for the...

Price Wars and Niche Discovery in an (2001)

Christopher H. Brooks, Edmund H. Durfee, Rajarshi Das

Electronic goods are exible and have negligible marginal costs. These features allow a producer of electronic goods to explore pricing schemes, and in particular bundling, that would not be feasible...

Dynamic Service Pricing for Brokers in a Multi-Agent Economy (2001)

Prithviraj Dasgupta, Rajarshi Das

We study the price dynamics in a multi-agent economy consisting of buyers and competing sellers, where each seller has limited information about its competitors' prices. In this economy, buyers use...

Pricing Information Bundles in a Dynamic Environment (2001)

Kephart, Jeffrey O., Das, Rajarshi, Brooks, Christopher H., Durfee, Edmund H., Gazzale, Robert S., MacKie-Mason, Jeffrey K.

We explore a scenario in which a monopolist producer of information goods seeks to maximize its profits in a market where consumer demand shifts frequently and unpredictably. The producer is free to...

Price Wars and Niche Discovery in an Information Economy (2000)

Christopher H. Brooks, Edmund H. Durfee, Rajarshi Das

Electronic goods are flexible and have negligible marginal costs. These features allow a producer of electronic goods to explore pricing schemes, and in particular bundling, that would not be...

The Evolutionary Design of Collective Computation in Cellular Automata (2000)

Melanie Mitchell, Rajarshi Das

We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

Evolving Cellular Automata with Genetic Algorithms: A Review of Recent Work (2000)

Melanie Mitchell, James P. Crutchfield, Rajarshi Das

We review recent work done by our group on applying genetic algorithms (GAs) to the design of cellular automata (CAs) that can perform computations requiring global coordination. A GA was used to...

Evolving Globally Synchronized Cellular Automata (2000)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Two-sided Learning in an Agent Economy for Information Bundles (2000)

Kephart, Jeffrey O., Das, Rajarshi, MacKie-Mason, Jeffrey K.

Commerce in information goods is one of the earliest emerging applications for intelligent agents in commerce. However, the fundamental characteristics of information goods mean that they can and...

Automated Strategy Searches in an Electronic Goods Market: Learning and Complex Price Schedules (1999)

Christopher H. Brooks, Scott Fay, Rajarshi Das, Jeffrey O. Kephart, Edmund H. Durfee

Markets for electronic goods provide the possibility of exploring new and more complex pricing schemes, due to the flexibility of information goods and negligible marginal cost. In this paper we...

Automated Strategy Searches in an Electronic Goods Market: Learning and Complex Price Schedules (1999)

Brooks, Christopher H., Fay, Scott, Das, Rajarshi, MacKie-Mason, Jeffrey K., Kephart, Jeffrey O., Durfee, Edmund H.

In an automated market for electronic goods new problems arise that have not been well studied previously. For example, information goods are very flexible. Marginal costs are negligible and nearly...

Automated Strategy Searches in an Electronic Goods Market: Learning and Complex Price Schedules (1999)

Christopher H. Brooks, Scott Fay, Rajarshi Das, Jerey O. Kephart, Edmund H. Durfee

In an automated market for electronic goods problems arise that have not been well studied previously. For example, information goods are very exible. In contrast to physical goods, marginal costs...

Two-Sided Learning in an Agent Economy for Information Bundles (1999)

Jerey O. Kephart, Rajarshi Das

. Commerce in information goods is one of the earliest emerging applications for intelligent agents in commerce. However, the fundamental characteristics of information goods mean that they can and...

Two-Sided Learning in an Agent Economy for Information Bundles (1999)

Jeffrey O. Kephart, Rajarshi Das

. Commerce in information goods is one of the earliest emerging applications for intelligent agents in commerce. However, the fundamental characteristics of information goods mean that they can and...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

Emergent Computation in Cellular Automata (1998)

Rajarshi Das

We study the ability of a genetic algorithm to design cellular automata exhibiting spontaneous global synchronization. We show that in order to produce emergent coordination, the evolutionary process...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

Crutchfield, James P., Mitchell, Melanie, Das, Rajarshi

We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

The Evolutionary Design of Collective Computation in Cellular Automata (1998)

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

. We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

Evolving Globally Synchronized Cellular Automata (1998)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Evolving Cellular Automata with Genetic Algorithms: A Review of Recent Work (1997)

Melanie Mitchell, James P. Crutchfield, Rajarshi Das

We review recent work done by our group on applying genetic algorithms (GAs) to the design of cellular automata (CAs) that can perform computations requiring global coordination. A GA was used to...

Evolving Cellular Automata with Genetic Algorithms: A Review of Recent Work (1997)

Melanie Mitchell, James P. Crutchfield, Rajarshi Das

We review recent work done by our group on applying genetic algorithms (GAs) to the design of cellular automata (CAs) that can perform computations requiring global coordination. A GA was used to...

Evolving Cellular Automata with Genetic Algorithms: A Review of Recent Work (1997)

Melanie Mitchell, James P. Crutchfield, Rajarshi Das

We review recent work done by our group on applying genetic algorithms (GAs) to the design of cellular automata (CAs) that can perform computations requiring global coordination. A GA was used to...

Evolving Globally Synchronized Cellular Automata (1997)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Evolving Cellular Automata with Genetic Algorithms: A Review of Recent Work (1996)

Melanie Mitchell, James P. Crutchfield, Rajarshi Das

We review recent work done by our group on applying genetic algorithms (GAs) to the design of cellular automata (CAs) that can perform computations requiring global coordination. A GA was used to...

Evolving Globally Synchronized Cellular Automata (1995)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Evolving Globally Synchronized Cellular Automata (1995)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Evolving Globally Synchronized Cellular Automata (1995)

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

The Evolutionary Design of Collective Computation in Cellular Automata

James P. Crutchfield, Melanie Mitchell, Rajarshi Das

We investigate the ability of a genetic algorithm to design cellular automata that perform computations. The computational strategies of the resulting cellular automata can be understood using a...

Evolving Globally Synchronized Cellular Automata

Rajarshi Das, James P. Crutchfield, Melanie Mitchell, James E. Hanson

How does an evolutionary process interact with a decentralized, distributed system in order to produce globally coordinated behavior? Using a genetic algorithm (GA) to evolve cellular automata (CAs),...

Catching a Baseball: A Reinforcement Learning Perspective Using a Neural Network

Rajarshi Das

Moments after a baseball batter has hit a fly ball, an outfielder has to decide whether to run forward or backward to catch the ball. Judging a fly ball is a difficult task, especially when the...