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Case Based Reasoning

Case Based Reasoning. Melanie Hanson Engr 315. What is Case-Based Reasoning?. Storing information from previous experiences Using previously gained knowledge to solve current problems Similar to human problem solving methods. Basic Steps. Identify the problem/case

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Case Based Reasoning

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  1. Case Based Reasoning Melanie Hanson Engr 315

  2. What is Case-Based Reasoning? • Storing information from previous experiences • Using previously gained knowledge to solve current problems • Similar to human problem solving methods

  3. Basic Steps • Identify the problem/case • Look for a similar, previously experienced case • Predict a solution, possibly different from past experiences • Evaluate the solution • Update the system with the results

  4. 4 General Concepts • Retrieve • Find similar cases • Reuse • Use old case to solve current case • Revise • Create a solution • Retain • Save the correct solution

  5. Representation Issues • Decide what to store • Choosing the appropriate structure • Organizing memory • General knowledge

  6. How are old cases used? • Compositional: Combine several solutions to make one best solution • Transformational: Use the solution from a previous case • Derivational: Apply the solution achieving process

  7. Why Case-Based Reasoning is Good • Low maintenance • Improves with use • Uses learned knowledge plus general knowledge • Case representation is easy to understand

  8. Trends in Case Based Reasoning • Integrate with other learning methods • Integrate with other reasoning components • Incorporate into massive parallel processing • Advancement by focusing on new cognitive aspects

  9. Applications of CBR • Help desks • Diagnosing problems • Decision making when considering past similar situations

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