multi-agent systems in medicine Štěpán urban. content introduction to multi-agent systems (mas)...
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Multi-agent Systems in Medicine
Štěpán Urban
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Content
Introduction to Multi-agent Systems (MAS) What is an Agent? Architecture of Agent MAS Platforms
MAS in Medicine System for Semantic Search in Medicine Management of Organ Transplants Simulation of Mitochondrial Metabolism using
Multi-agents System
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What is an Agent? An agent [1] is: an encapsulated
computational (or physical, even human) system, that is situated in some environment, and that is capable of flexible, autonomous behaviour in order to meet its design objective.
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Architecture of an Agent
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MAS Platforms
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MAS Platforms JADE - Java Agent DEvelopment Framework
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MAS Platforms A-Globe
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Agent System for Semantic Search in Medicine
An Example of a Query given by a User
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OnSSA (Ontology-based Semantic Search Agent) An ontology-based information retrieval agent system
in medicine through bio-related literature database MEDLINE
Automates systematic retrieval of literature in medicine by utilizing the Semantic Web languages.
Ontology part is implemented with DAML+OIL language and OilEd editor is used partly.
The abstracts, author, title, journal, and date information of document are extracted into XML -based input file in order to evaluate the relevancy of documents to a query given. In addition to the Semantic Web languages, the rest of implementation is done in Java.
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OnSSA – System Overview
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Biomedical Ontology and Search Engines
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The Process of Information Retrieval
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Management of Organ Transplants Multi-agent system to help to manage the process of
organ transplants within Spain. Agents:
Emergency Coordinator (EC), which is the national coordinator of the 0-emergency cases. This is the name given to those patients that are waiting for an organ and have reached a very critical condition, in which their life is at high risk if the transplant is not performed in a very short period of time.
Historical Agent (HA), which receives the data of all transplants made in Spain. With this information it can keep historical files, elaborate statistics, apply data mining techniques in order to gain useful knowledge, etc.
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Steps in the Search for an Appropriate Recipient.
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Simulation of Mitochondrial Metabolism using Multi-agents System Metabolic pathways describe chains of enzymatic
reactions.Their modelling is a key point to understand living systems. An enzymatic reaction is an interaction between one or several metabolites (substrates) and an enzyme (simple protein or enzymatic complex build of several subunits)
Many ordinary differential equation models are available in the literature.They well fit experimental results on flux values inside the metabolic pathways, but many parameters are difficult to transcribe with suchmodels: localization of enzymes, rules about the reactions scheduler, etcMoreover, a model of a significant part of mitochondrial metabolism could become very complex and contain more than 50 equations.
In this context, the multi-agents systems appear as an alternative to model the metabolic pathways.
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Mitochondria
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Potentials Deformations Applied to a Simple Molecule
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Simulation of Mitochondrial Metabolism using Multi-agents System
A: abstracted 3D structure. B: application to a phospholipid.
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References [1] Definition of an agent by Prof. Michael Wooldridge. JADE: Java Agent Development Framework.
http://jade.tilab.com A-Globe: A-Globe Agent Platform.
http://agents.felk.cvut.cz/aglobe Jung-Jin Yang, An Ontology-Based Intelligent Agent
System for Semantic Search in Medicine Antonio Moreno, Medical Applications of Multi-Agent
Systems Charles Lales, Nicolas Parisey, Jean-Pierre Mazat and
Marie Beurton-Aimar Mitochondria from http://universe-review.ca/