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| 3. |
- Adolfsson, Stefan
(författare)
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Quility Monitoring in Robotised Short Circuiting GMA Welding
- 1997
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This paper addresses the problem of automatic monitoring the weld quality produced by robotised short arc welding. A simple statistical change detection algorithm for the weld quality, recursive Sequential Probability Ratio Test (SPRT), is used. The algorithm may equivalently be viewed as a cumulative sum (CUSUM) - type test. The test statistics is based upon the variance of the amplitude of the weld voltage. The performance of the algorithm is evaluated using experimental data. The results obtained from the algorithm indicate that it is possible to detect changes in the weld quality automatically and on-line.
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| 4. |
- Akkermans, Hans, et al.
(författare)
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An Integrated Structured Analysis Approach to Intelligent Agent Communication
- 1998
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Intelligent multi-agent systems offer promising approaches for knowledge-intensive distributed applications. Now that such systems are becoming applied on a wider industrial scale, there is a practical need for structured analysis and design methods, similarly as exist for more conventional information and knowledge systems. This is still lacking for intelligent agent software. In this paper, we describe how the process of agent communication specification can be carried out through a structured analysis approach. The structured analysis approach we propose is an integrated extension of the CommonKADS methodology, a widely used standard for knowledge analysis and systems development. Our approach is based on and illustrated by a large-scale multi-agent application for distributed energy load management in industries and households, called Homebots, which is discussed as an extensive industrial case study.
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| 5. |
- Akkermans, Hans, et al.
(författare)
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Homebots : Intelligent Decentralized Services for Energy Management
- 1996
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The deregulation of the European energy market, combined with emerging ad-vanced capabilities of information technology, provides strategic opportunities for new knowledge-oriented services on the power grid. HOMEBOTS is the name we have coined for one of these innovative services: decentralized power load management at the customer side, automatically carried out by a ‘society’ of interactive house-hold, industrial and utility equipment. They act as independent intelligent agents that communicate and negotiate in a computational market economy. The knowl-edge and competence aspects of this application are discussed, using an improved version of task analysis according to the COMMONKADS knowledge methodology. Illustrated by simulation results, we indicate how customer knowledge can be mo-bilized to achieve joint goals of cost and energy savings. General implications for knowledge creation and its management are discussed.
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| 6. |
- Akkermans, Hans, et al.
(författare)
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Pragmatics of Agent Communication
- 1998
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The process of agent communication modeling has not yet received much attention in the knowledge systems area. Conventional knowledge systems are rather simple with respect to their communication structure: often it is a straightforward question-and-answer sequence between system and end user. However, this is different in recent intelligent multi-agent systems. Therefore, agent communication aspects are now in need of a much more advanced treatment in knowledge management, acquisition and modeling. In general, a much better integration between the respective achievements of multi-agent and knowledge-based systems modeling is an important research goal. In this paper, we describe how agent communications can be specified as an extension of well-known knowledge modeling techniques. The emphasis is on showing how a structured process of communication requirements analysis proceeds, based on existing results from agent communication languages. The guidelines proposed are illustrated by and based on a large-scale industrial multi-agent application for distributed energy load management in industries and households, called Homebots. Homebots enable cost savings in energy consumption by coordinating their actions through an auction mechanism.
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| 7. |
- Alvesund, Carolin
(författare)
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Att minska beroendet av motoriserade transporter : en fråga om att kunna och vilja!
- 1998
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The report includes (i) planning measures potential on reducing the dependency of motorized transports, (ii) the intrest of municipals and county administrative boads on reducing the dependency of motorized transports and (iii) legal potentials on reducing the dependency of motorized transports.
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| 8. |
- Alvesund, Carolin
(författare)
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Lokalt utvecklingsarbete i Svarte, Ystad kommun : en utvärdering.
- 1998
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Rapport (refereegranskat)abstract
- An evaluation of the local development work in Svarte, Ystad municipality, which has been carried on between 1995 and 1997. The evaluation aims to describe the local development work regarding 1)how the interplay between local and municipality actors has worked, 2)how local initiatives to development has been supported with municipal physical planning, 3)how civil ascendancy has come to expression, 4)how the collaboration within the municipality and between the municipality and other actors has worked, 5)how new forms of physical planning has been used.
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| 9. |
- Alvesund, Carolin
(författare)
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Lokalt utvecklingsarbete på Karlshamns landsbygd : en utvärdering.
- 1998
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Rapport (refereegranskat)abstract
- An evaluation of the local development work in the rural parts of Karlshamn municipality, which has been carried on between 1995 and 1997. The evaluation aims to describe the local development work regarding 1)how the interplay between local and municipality actors has worked, 2)how local initiatives to development has been supported with municipal physical planning, 3) how civil ascendancy has come to expression, 4)how the collaboration within the municipality and between the municipality and other actors has worked, 5)how new forms of physical planning has been used.
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| 10. |
- Andersson, Arne, et al.
(författare)
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Managing Large-Scale Computational Markets
- 1998
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- General equilibrium theory has been proposed for resource allocation in computational markets. The basic procedure is that agents submit bids and that a resource (re)allocation is performed when a set of prices (one for each commodity) is found such that supply meets demand for each commodity. For successful implementation of large markets based on general equilibrium theory, efficient algorithms for finding the equilibrium are required. We discuss some drawbacks of current algorithms for large scale equilibrium markets and present a novel distributed algorithm, CoTree, which deals with the most important problems. CoTree is communication sparse, fast in adapting to preference changes of a few agents, have minimal requirements on local data, and is easy to implement.
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