The accelerated-convergence-expansion(ACE) method ofphase-shift analysis has been applied recentl... more The accelerated-convergence-expansion(ACE) method ofphase-shift analysis has been applied recently to X+ p elastic scattering. Its conformal-mapping technique generates larger high partial waves (HPW) than previousanalyses. We calculate the HPW's from 7l-exchange, and estimate all possible uncertainties. The results are much smaller than and in clear contradiction with the ACE predictions for the HPW's. We suggest modifications of the latter to remedy this sad state of affairs.
Advances in agent technology depend on improving frameworks for building and supporting agent soc... more Advances in agent technology depend on improving frameworks for building and supporting agent societies. Experience suggests that first generation multi-agent systems fall short of providing a rapid prototyping development environment for the systematic construction and deployment of agent-oriented applications. While at least sixty[1] different agent systems have been implemented, few efforts have been made to use them as case studies for building second-generation multi-agent systems. We propose a refactoring of both architecture and implementation across multiple well-known opensource agent frameworks to produce a new multi-agent system (MAS) framework called MAS2. The first step in building MAS2 is the evaluation of several agent frameworks. The focus of this paper is to collect reusable abstractions from the Zeus MAS that support plug-andplay agent infrastructure and behavior, agent interoperability, building a generic MAS core, and a MAS interface allowing domain specific extensions. The Zeus MAS framework was critiqued by implementing an ecommerce agent society.
In previous papers [5], [6] we describe an event-based UML state machine execution engine as well... more In previous papers [5], [6] we describe an event-based UML state machine execution engine as well as a Microsoft Visio-based visual editor that has many benefits over the built-in JADE FSM (Finite State Machine) behaviour model. These benefits are an integration of message handling, timeouts, exceptions and the use of hierarchy and common action factoring to reduce the complexity of behaviour construction, while ultimately improving system scalability. In that work we engineered a consistent, largely self-contained component, with several key properties, but relatively incomplete integration with other JADE behaviour mechanisms. Since then, we have developed a new Hierarchical State Machine (HSM) model that shares many of the same goals of reducing the complexity of developing protocols and behaviours, but is a vastly improved companion to JADE. It leverages the newer JADE Composite Behaviour and offers substantial improvements over the JADE FSM. Furthermore, we describe a new Java ...
In this paper, we describe our research into transforming an agent platform into a manageable ser... more In this paper, we describe our research into transforming an agent platform into a manageable service that can be managed by a modern application server. This is a key part of industrializing agent technology, that is, integrating agent technology with other mainstream web server, application server, DB, communication and security technologies, to produce a scalable, robust platform for intelligent applications of various kinds.
As Web based E-commerce and component software becomes more real, interest in software agents has... more As Web based E-commerce and component software becomes more real, interest in software agents has increased. Agents can be viewed as specialized distributed components, offering greater flexibility than traditional components when developing certain applications. Different kinds of agents have different amounts of personality, mobility, interaction, collaboration, persistence and intelligence. This article focuses on agent communication and multi-agent systems (groups of communicating, collaborating agents). Workflow can help define how agents with different roles might interact in a flexible, yet constrained manner to accomplish a collaborative task. Agents and workflow can combine to provide a new technology for application development, providing significant benefits beyond those traditionally associated with components and scripting.
In certain scenarios such as disaster response, hastily formed ad hoc networks often have limited... more In certain scenarios such as disaster response, hastily formed ad hoc networks often have limited resources, such as low bandwidth and processing capability. A sudden increase in data transmission in such resource-constrained networks frequently results in congestion, causing increased delay in sending data. The data transmitted in these ad hoc networks may be tied to critical events, which need to be delivered quickly so decision makers can address high priority issues as soon as they occur. Increased delays may cause slow response times and poor performance. Thus, the research problem we address is: How do we prioritize and ensure timely delivery of critical data in a congested ad hoc network. In this thesis, we present Triage, a framework that enables real-time data transmission prioritization based on changes in sender context information. Existing quality of service mechanisms prioritize data transmission based on data content type. Our Triage framework additionally prioritizes data based on sender context as well as role, and enables relative importance of context values to be configured dynamically at run time. We analyze the performance of Triage across several different types of network topologies using both a simulation environment and a sensor network testbed. We also demonstrate empirically how critical data transmission in our Triage framework outperforms baseline data transmission with higher throughput and lower packet delay, without significantly affecting fairness measurements.
In the last article we considered how to identify the context for a case study and how to define ... more In the last article we considered how to identify the context for a case study and how to define and validate a case study hypothesis. In this article, we continue my discussion of the eight steps involved in a quantitative case study by considering...
... Each work is then described in more detail in a subsequent paragraph. The final paragraph sum... more ... Each work is then described in more detail in a subsequent paragraph. The final paragraph summarizes the contributions from the related works and then defines the direction taken by this research. ... Product, CWave 2000, TIBCO, Voyager, iBus, JMS/ JMQ. SOAP, Siena, JINI, JBus ...
The accelerated-convergence-expansion(ACE) method ofphase-shift analysis has been applied recentl... more The accelerated-convergence-expansion(ACE) method ofphase-shift analysis has been applied recently to X+ p elastic scattering. Its conformal-mapping technique generates larger high partial waves (HPW) than previousanalyses. We calculate the HPW's from 7l-exchange, and estimate all possible uncertainties. The results are much smaller than and in clear contradiction with the ACE predictions for the HPW's. We suggest modifications of the latter to remedy this sad state of affairs.
Advances in agent technology depend on improving frameworks for building and supporting agent soc... more Advances in agent technology depend on improving frameworks for building and supporting agent societies. Experience suggests that first generation multi-agent systems fall short of providing a rapid prototyping development environment for the systematic construction and deployment of agent-oriented applications. While at least sixty[1] different agent systems have been implemented, few efforts have been made to use them as case studies for building second-generation multi-agent systems. We propose a refactoring of both architecture and implementation across multiple well-known opensource agent frameworks to produce a new multi-agent system (MAS) framework called MAS2. The first step in building MAS2 is the evaluation of several agent frameworks. The focus of this paper is to collect reusable abstractions from the Zeus MAS that support plug-andplay agent infrastructure and behavior, agent interoperability, building a generic MAS core, and a MAS interface allowing domain specific extensions. The Zeus MAS framework was critiqued by implementing an ecommerce agent society.
In previous papers [5], [6] we describe an event-based UML state machine execution engine as well... more In previous papers [5], [6] we describe an event-based UML state machine execution engine as well as a Microsoft Visio-based visual editor that has many benefits over the built-in JADE FSM (Finite State Machine) behaviour model. These benefits are an integration of message handling, timeouts, exceptions and the use of hierarchy and common action factoring to reduce the complexity of behaviour construction, while ultimately improving system scalability. In that work we engineered a consistent, largely self-contained component, with several key properties, but relatively incomplete integration with other JADE behaviour mechanisms. Since then, we have developed a new Hierarchical State Machine (HSM) model that shares many of the same goals of reducing the complexity of developing protocols and behaviours, but is a vastly improved companion to JADE. It leverages the newer JADE Composite Behaviour and offers substantial improvements over the JADE FSM. Furthermore, we describe a new Java ...
In this paper, we describe our research into transforming an agent platform into a manageable ser... more In this paper, we describe our research into transforming an agent platform into a manageable service that can be managed by a modern application server. This is a key part of industrializing agent technology, that is, integrating agent technology with other mainstream web server, application server, DB, communication and security technologies, to produce a scalable, robust platform for intelligent applications of various kinds.
As Web based E-commerce and component software becomes more real, interest in software agents has... more As Web based E-commerce and component software becomes more real, interest in software agents has increased. Agents can be viewed as specialized distributed components, offering greater flexibility than traditional components when developing certain applications. Different kinds of agents have different amounts of personality, mobility, interaction, collaboration, persistence and intelligence. This article focuses on agent communication and multi-agent systems (groups of communicating, collaborating agents). Workflow can help define how agents with different roles might interact in a flexible, yet constrained manner to accomplish a collaborative task. Agents and workflow can combine to provide a new technology for application development, providing significant benefits beyond those traditionally associated with components and scripting.
In certain scenarios such as disaster response, hastily formed ad hoc networks often have limited... more In certain scenarios such as disaster response, hastily formed ad hoc networks often have limited resources, such as low bandwidth and processing capability. A sudden increase in data transmission in such resource-constrained networks frequently results in congestion, causing increased delay in sending data. The data transmitted in these ad hoc networks may be tied to critical events, which need to be delivered quickly so decision makers can address high priority issues as soon as they occur. Increased delays may cause slow response times and poor performance. Thus, the research problem we address is: How do we prioritize and ensure timely delivery of critical data in a congested ad hoc network. In this thesis, we present Triage, a framework that enables real-time data transmission prioritization based on changes in sender context information. Existing quality of service mechanisms prioritize data transmission based on data content type. Our Triage framework additionally prioritizes data based on sender context as well as role, and enables relative importance of context values to be configured dynamically at run time. We analyze the performance of Triage across several different types of network topologies using both a simulation environment and a sensor network testbed. We also demonstrate empirically how critical data transmission in our Triage framework outperforms baseline data transmission with higher throughput and lower packet delay, without significantly affecting fairness measurements.
In the last article we considered how to identify the context for a case study and how to define ... more In the last article we considered how to identify the context for a case study and how to define and validate a case study hypothesis. In this article, we continue my discussion of the eight steps involved in a quantitative case study by considering...
... Each work is then described in more detail in a subsequent paragraph. The final paragraph sum... more ... Each work is then described in more detail in a subsequent paragraph. The final paragraph summarizes the contributions from the related works and then defines the direction taken by this research. ... Product, CWave 2000, TIBCO, Voyager, iBus, JMS/ JMQ. SOAP, Siena, JINI, JBus ...
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Papers by Martin Griss