Term Papers on CASE-BASED REASONING

Term Paper Title	CASE-BASED REASONING
# of Words	3762
# of Pages (250 words per page double spaced)	15.05

CASE-BASED REASONING

1. Introduction

     Nowadays, Artificial Intelligent and knowledge-based system technologies are used in many business areas. One of them is Case Based Reasoning, this approach has been widely used in many areas of interest such as Education, Medication and Business. Case-based Reasoning (CBR) is a problem solving method which is  used a  specific knowledge of the previous experienced , concrete problem situation. In order to  solve  a new problem, it is finding a similar case, and reusing it in the new  problem situation. In addition, it might mean solving a new problem by adapting an old solution or merging pieces of several old solution, interpreting a new situation in light of old similar situations, or projecting the effects of a new situation by examining the effects of similar old solution. Here is one of the simple  problem solving example which is used the previous cases problem solving to the new problem. Let us consider how the financial consultant make decision whether approving  loan application. He/she uses
a reminding to previous cases which involved a company in similar trouble as the current one.

This paper will discuss the framework  describe its application  in two business setting and identify the characteristics of the framework that make it suitable for the applications.

2. Case-based Reasoning Framework

     Case-based Reasoning is learning from experience since it is  usually easy leaning by experience, which is just pick up the similar cases in the past and matches to the current problem that we are faced with, however, the effective of learning in Case-Based reasoning  requires a  set of methods  in order to extract relevant knowledge from the experience, integrate a case into an  existing knowledge structure and index the case for the matching  with similar cases.

     One of the important aspect that we should know in CBR is  how the case is represented.  "A Case is a contextualised pieced of knowledge representing an experience. Typically a case comprises, the problem that the state of the  real world when the case occurred, the solution which state the derived solution to the problem and the outcomes which describe the sate of the real world after the case occurred". [3]

There are some type of CBR methods for organising, utilizing and indexing the knowledge  retained in the past cases. Firstly, the case may be indexed
by a prefixed or open vocabulary, and within a flat of hieratical index structure, secondly cases may be stored as a separate knowledge units, or split up into subunits and distributed within the knowledge structure. Thirdly, cases also may kept as concrete experiences, or a set of similar cases may form a generalized case. In some cases, the  new problem is  directly solved by matching the similarity of the previous case and modify accordingly. "But in most cases, it is not  just as implement matching the similarity but also has to be  supported by a deep model of general knowledge , by more shallow and compiled knowledge. Pass cases  may be retrieved sequentially or in parallel".[2]

     The CBR methods and system has two main parts: first, a process model of the CBR cycle and A task- method structure for case-based reasoning. This two parts  are represent the different view of case-based reasoning, The cycle is dynamic model that identifies the main subprocesses of a CBR cycle, and the second is a task -oriented view, where a task decomposition and related problem solving methods are described.

The processes involved in CBR can be represented by a schematic cycle Aamodt and Plaza [the case] have described CBR typically as a cyclical process comprising the four REs:

   1. RETRIEVE the most similar case(s);
   2. REUSE the case(s) to attempt to solve the problem;
   3. REVISE the proposed solution if necessary, and
   4. RETAIN the new solution as a part of a new case.

               Figure1. CBR Cycle [3]

"The new cases is used to RETRIEVE a case from the collection of the  previous cases. The retrieved case is combined with...

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