|
Our approach to Case Based Reasoning (CBR) has historically been
towards integrated applications that combine case specific knowledge
with models of general (terminological) domain knowledge.
In the Phd thesis of Belén Díaz-Agudo (finished in
October 2002 and directed by Pedro González-Calero) we
proposed a domain independent architecture (called COLIBRI, which
stands for Cases and Ontology Libraries Integration for Building
Reasoning Infrastructures) to help in the design of knowledge intensive
CBR (KI-CBR) systems. COLIBRI is based on knowledge acquisition from a
library of application-independent ontologies and the use of CBROnto,
an ontology with the common CBR terminology that guides case
representation and allows the description of flexible, generic and
reusable CBR Problem Solving Methods (PSMs) that solve the typical CBR
tasks. You can find several
papers, its about COLIBRI and CBROnto, about its task/method
structures, and about its implementation based on the reasoning
capabilities of a Description Logics system: LOOM.
This implementation in LISP/LOOM of our architecture
CBROnto/COLIBRI has been useful during the last few years for testing
and prototyping KI-CBR different systems. However it is not very usable
by non-DLs-expert users. For that reason, and in order to open these
ideas to a wider community of CBR developers, we have undertaken the
development of jCOLIBRI, a new and up to date java framework for CBR.
The first version of jCOLIBRI is a complete CBR development architecture
supporting many features like graphical interfaces, Description Logics and ontologies,
Textual CBR, evaluation, etc... However, the fast evolving of the framework presented
several problems related with its scalability and ease of development.
To solve the drawbacks found in the first version, we are developing jCOLIBRI 2
with a new architecture that takes advantage of the lessons learnt during many years of development.
|
|
Developers
Our goal is to provide a reference framework for CBR development that would grow with contributions from the community. This reference would serve for pedagogical purposes and as bottom line implementation for prototyping CBR systems and comparing different CBR approaches to a given problem. There are many people involved in the development of jCOLIBRI:
- Pedro A.
González-Calero. He is the master of the project. He was
the responsible of many of the goods ideas of COLIBRI/CBROnto.
- Belén
Díaz-Agudo. She was responsible of COLIBRI/CBROnto (Lisp
version). DLs module of jCOLIBRI; Connector to data bases; ...
- Juan José Bello. He did the very first versions of jCOLIBRI.
- Juan A.
Recio-Garcia. He first contacted jCOLIBRI summer 04 (during his visit to
Aberdeen) and now is the main developer of jCOLIBRI. He completed the first version of the framework implementing most of its features, and now is in charge of the second version as it is the base of his Phd.
- Antonio A.
Sanchez-Ruiz Granados. He greatly contributed to the first version and now is using jCOLIBRI for CBR planning.
- Derek Bridge and Lisa Cummins (University College Cork, Ireland). Lisa has developed all the maintenance algorithms of jCOLIBRI version 2. Derek has directed the recommenders extension of jCOLIBRI 2.1 and has contributed with several other features of the framework Thanks!
- Josep LLuís Arcos (Artificial Intelligence Research Institute - Spanish Scientific Research Council) has developed the InfoVisual library for case base visualization that has been included in jCOLIBRI 2. Thanks!
- Here we must cite Nirmalie Wiratunga and Sutanu Chakraborti as they were the designers of the textual CBR extension.
Users
jCOLIBRI is becaming a reference tool for teaching a research purposes. This is a list of known users:
- Universidad Complutense de Madrid (Spain)
- Pablo Gervás and Federico Peinado Gil. Story Plot Generation.
- Hector Gómez-Gauchía. COBBER: Conversational Case-Based Reasoning framework to manage the conversation strategies between users and computers.
- Guillermo Jiménez Díaz, Marco A. Gómez-Martín and Pedro P. Gómez-Martín. Javy: educational game that teaches the Java Virtual Machine (JVM) structure and the compilation concepts.
- Mónica González Jenal, Silvia Martín Alejo and Raquel Ramos López developed a personal trainer CBR system with jCOLIBRI as their CS degree final proyect.
- The students of the course "Knowledge Based Systems Engineering" are also using jCOLIBRI.
- Université Pierre et Marie Curie (Paris, France).
- Georgia Institute of Technology (Georgia, USA) More info.
- Indian Institute of Technology (Chennai, India)
- The Robert Gordon University (Aberdeen, United Kingdom)
- University College Cork (Cork, Ireland)
- Malardalen University (Vasteras, Sweden)More info.
- Drexel University (Philadelphia, USA), More info.
- Norwegian University of Science and Technlogy (Trondheim, Norwey). More info.
- Federal University of Santa Catarina in Brazil. More info (thesis).
- One Project - Project funded by the European Community under the “Information Society Technology” Programme (IST-034744). More info.
Commercial Applications
- KoBas: knowledge management system built by the consultants Wittmann & Partner in Rumania. More info.
- EMEF (Portuguese railway company) gave its 1st R+D award to an intelligent system for failure diagnostics developed in collaboration with the University of Porto. More info.
|
