Deepika Chauhan - Academia.edu (original) (raw)

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Papers by Deepika Chauhan

Research paper thumbnail of JAFMAS: a multiagent application development system

1. ABSTRACT The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic me... more 1. ABSTRACT The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology for developing speech-act based multiagent systems (MAS) along with a set of classes to support implementing these agents in Java. The ...

Research paper thumbnail of Developing Coherent Multiagent Systems using JAFMAS

The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology fo... more The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology for developing speech-act based multiagent systems (MAS) along with a set of classes to support implementing these agents in Java. The methodology follows five stages: (i) agent identification, (ii) definition of each agent's conversations, (iii) determining the rules governing each agent's conversations, (iv) analyzing the coherency between all the conversations in the system, and (v) implementation. JAFMAS provides communication, linguistic and coordination support through sixteen Java classes. Communication support is provided for both directed and subject-based broadcast communication. Linguistic support is provided for speech-act (e.g. KQML) based communication languages. Coordination support comes from conceptualizing agent plans and their coordination as rule-based conversations represented by automata models

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Object Systems

Autonomous Agents and Multi-agent Systems, 2002

Mobile objects have gained a lot of attention in research and industry in the recent past, but th... more Mobile objects have gained a lot of attention in research and industry in the recent past, but they also have a long history. Security is one of the key requirements of mobile objects, and one of the most researched characteristics related to mobility. Resource management has been somewhat neglected in the past, but it is being increasingly addressed, in both the context of security and QoS. In this paper we place a few systems supporting mobile objects in perspective based upon how they address security and resource management. We start with the theoretical model of Actors that supports concurrent mobile objects in a programming environment. Then we describe task migration for the Mach microkernel, a case of mobile objects supported by an operating system. Using the OMG MASIF standard as an example, we then analyze middleware support for mobile objects. Mobile Objects and Agents (MOA) system, is an example of middleware level support based on Java. The active networks project, Conversant, supports object mobility at the communication protocol level. We summarize these projects, comparing their security and resource management, and conclude by deriving a few general observations on how security and resource management have been applied and how they might evolve in the future.

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Objects

In a distributed system, objects may migrate from one node to another for a variety of reasons. T... more In a distributed system, objects may migrate from one node to another for a variety of reasons. The new location may provide a more suitable computational environment, it may offer cheaper resources, or it may have data needed by the agent to satisfy its goals. The ability of an object to exist in a resource space that is not entirely dedicated to its own computation raises security concerns for the object itself, and raises performance and security concerns for the host environment. Individual objects or groups of objects may exhibit undesirable resource consumptive behavior. These reasons make it important to study ways of controlling resources used by mobile objects.

Research paper thumbnail of Mobile Objects and Agents (MOA

Distributed Systems Engineering, 1998

This paper describes the design and implementation of the Mobile Objects and Agents (MOA) project... more This paper describes the design and implementation of the Mobile Objects and Agents (MOA) project at the Open Group Research Institute. MOA was designed to support migration, communication and control of agents. It was implemented on top of the Java Virtual Machine, without any modifications to it. The initial project goals were to support communication across agent migration, as a means for collaborative work; and to provide extensive resource control, as a basic support for countering denial of service attacks. In the course of the project we added two further goals: compliance with the Java Beans component model which provides for additional configurability and customization of agent system and agent applications; and interoperability which allows cooperation with other agent systems.

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Object Systems

Autonomous Agents and Multi-agent Systems, 2002

Mobile objects have gained a lot of attention in research and industry in the recent past, but th... more Mobile objects have gained a lot of attention in research and industry in the recent past, but they also have a long history. Security is one of the key requirements of mobile objects, and one of the most researched characteristics related to mobility. Resource management has been somewhat neglected in the past, but it is being increasingly addressed, in both the context of security and QoS. In this paper we place a few systems supporting mobile objects in perspective based upon how they address security and resource management. We start with the theoretical model of Actors that supports concurrent mobile objects in a programming environment. Then we describe task migration for the Mach microkernel, a case of mobile objects supported by an operating system. Using the OMG MASIF standard as an example, we then analyze middleware support for mobile objects. Mobile Objects and Agents (MOA) system, is an example of middleware level support based on Java. The active networks project, Conversant, supports object mobility at the communication protocol level. We summarize these projects, comparing their security and resource management, and conclude by deriving a few general observations on how security and resource management have been applied and how they might evolve in the future.

Research paper thumbnail of JAFMAS: a multiagent application development system

1. ABSTRACT The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic me... more 1. ABSTRACT The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology for developing speech-act based multiagent systems (MAS) along with a set of classes to support implementing these agents in Java. The ...

Research paper thumbnail of Developing Coherent Multiagent Systems using JAFMAS

The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology fo... more The Java-based Agent Framework for Multi-Agent Systems (JAFMAS) provides a generic methodology for developing speech-act based multiagent systems (MAS) along with a set of classes to support implementing these agents in Java. The methodology follows five stages: (i) agent identification, (ii) definition of each agent's conversations, (iii) determining the rules governing each agent's conversations, (iv) analyzing the coherency between all the conversations in the system, and (v) implementation. JAFMAS provides communication, linguistic and coordination support through sixteen Java classes. Communication support is provided for both directed and subject-based broadcast communication. Linguistic support is provided for speech-act (e.g. KQML) based communication languages. Coordination support comes from conceptualizing agent plans and their coordination as rule-based conversations represented by automata models

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Object Systems

Autonomous Agents and Multi-agent Systems, 2002

Mobile objects have gained a lot of attention in research and industry in the recent past, but th... more Mobile objects have gained a lot of attention in research and industry in the recent past, but they also have a long history. Security is one of the key requirements of mobile objects, and one of the most researched characteristics related to mobility. Resource management has been somewhat neglected in the past, but it is being increasingly addressed, in both the context of security and QoS. In this paper we place a few systems supporting mobile objects in perspective based upon how they address security and resource management. We start with the theoretical model of Actors that supports concurrent mobile objects in a programming environment. Then we describe task migration for the Mach microkernel, a case of mobile objects supported by an operating system. Using the OMG MASIF standard as an example, we then analyze middleware support for mobile objects. Mobile Objects and Agents (MOA) system, is an example of middleware level support based on Java. The active networks project, Conversant, supports object mobility at the communication protocol level. We summarize these projects, comparing their security and resource management, and conclude by deriving a few general observations on how security and resource management have been applied and how they might evolve in the future.

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Objects

In a distributed system, objects may migrate from one node to another for a variety of reasons. T... more In a distributed system, objects may migrate from one node to another for a variety of reasons. The new location may provide a more suitable computational environment, it may offer cheaper resources, or it may have data needed by the agent to satisfy its goals. The ability of an object to exist in a resource space that is not entirely dedicated to its own computation raises security concerns for the object itself, and raises performance and security concerns for the host environment. Individual objects or groups of objects may exhibit undesirable resource consumptive behavior. These reasons make it important to study ways of controlling resources used by mobile objects.

Research paper thumbnail of Mobile Objects and Agents (MOA

Distributed Systems Engineering, 1998

This paper describes the design and implementation of the Mobile Objects and Agents (MOA) project... more This paper describes the design and implementation of the Mobile Objects and Agents (MOA) project at the Open Group Research Institute. MOA was designed to support migration, communication and control of agents. It was implemented on top of the Java Virtual Machine, without any modifications to it. The initial project goals were to support communication across agent migration, as a means for collaborative work; and to provide extensive resource control, as a basic support for countering denial of service attacks. In the course of the project we added two further goals: compliance with the Java Beans component model which provides for additional configurability and customization of agent system and agent applications; and interoperability which allows cooperation with other agent systems.

Research paper thumbnail of Case Studies in Security and Resource Management for Mobile Object Systems

Autonomous Agents and Multi-agent Systems, 2002

Mobile objects have gained a lot of attention in research and industry in the recent past, but th... more Mobile objects have gained a lot of attention in research and industry in the recent past, but they also have a long history. Security is one of the key requirements of mobile objects, and one of the most researched characteristics related to mobility. Resource management has been somewhat neglected in the past, but it is being increasingly addressed, in both the context of security and QoS. In this paper we place a few systems supporting mobile objects in perspective based upon how they address security and resource management. We start with the theoretical model of Actors that supports concurrent mobile objects in a programming environment. Then we describe task migration for the Mach microkernel, a case of mobile objects supported by an operating system. Using the OMG MASIF standard as an example, we then analyze middleware support for mobile objects. Mobile Objects and Agents (MOA) system, is an example of middleware level support based on Java. The active networks project, Conversant, supports object mobility at the communication protocol level. We summarize these projects, comparing their security and resource management, and conclude by deriving a few general observations on how security and resource management have been applied and how they might evolve in the future.