A Platform for EMG Studies

1
A Platform for EMG Studies

• Danielle Ziébelin, Martine Maume
• and Philippe Genoud
• INRIA Rhône-Alpes
• Projet Sherpa
• http//www.inrialpes.fr/sherpa/
• Firstname.Lastname_at_inrialpes.fr

2
Goals of the EMGnet Project

• share the different resources of the EMGnet nodes
• software
• specialized equipment ...
• exchange data that require analysis
• enhance knowledge and profit from it

3
Difficulties

• each node should have access to the competence of
  the other nodes but ...
• complex software libraries / modules
• heterogeneous computer environments
• physicians are not programmers

4
The JACOMO Platform

• JAva COmponents for electroMyOgraphy
• a common platform for the different partners that
  allows them
• - to integrate their own software
• - to access software of the other partners

5
JACOMOs Features

• use of software components to encapsulate data
  processing
• ability to distribute processing
• visual programming interface
• aid to the users through the use of a knowledge
  base
• JAVA language the glue to assemble different
  parts of the platform

6
Software Components

• modules to be integrated in the environment
• modules with different levels of granularity
• related components to link the modules (filters,
  choice, loop, )
• creation of  scripts  (chains of components)

7
Visual Programming

• GUI to dynamically
• load
• configure
• connect
• execute
• components

8
Knowledge Based Supervision

• Knowledge Based Problem Solving System
• The user submits a problem to be solved
• The system helps him/her in
• selecting the right components
• interacting with the components (parameters)
• linking the components

9
Types of Knowledge

• Methodological (strategies of resolution)
• decomposition of a problem to several subproblems
  (tasks)
• association of one or more components with each
  elementary task
• assembling the components to solve a higher level
  problem

Methodological KB

Component library
10
Types of Knowledge
KB related to the EMG domain

• Methodological
• Descriptive
• functionality of the components
• nature of the information used by the tasks
• input, output

Methodological KB
Components library
11
Distribution

• Domain (descriptive) knowledge
• common knowledge shared by all the partners
• Components and the operative knowledge associated
  with them
• developed and maintained locally under
  responsibility of each EMGnet node
• accessible by the other nodes through the network

12
Distribution (cont.)

• A task can be published to allow its use from
  other sites
• A distant task used in a problem solving strategy
  is seen as a terminal task

13
Distribution (cont.)

• When a distant task is invoked

• the resolution graph is downloaded

• the resolution process continues until elementary
  tasks are obtained

14
Distribution

• Execution of a distant component

• Download of the component and then its local
  execution

• Remote execution

15
How far we are ?

• INRIA
• has long-term and valuable experience in
• program supervision based on tasks
• object-based knowledge representations
• 
  
• is currently focusing on
• technology
  components and
• building the EMG
  knowledge base
• 
  
• has to develop the distributed environment (RMI,
  CORBA, etc.)
• --------------------
  ----------------
• 
  JACOMO

16
Contribution of INRIA to the Project

• creation of a knowledge base of the EMG concepts
• specification and development of the visual
  distributed environment based on components
• implementation of a component to record medical
  cases