Skip to main content

Case-Base Maintenance in an Associative Memory Organized by a Self-Organization Map

  • Chapter
Book cover Innovations in Hybrid Intelligent Systems

Part of the book series: Advances in Soft Computing ((AINSC,volume 44))

Abstract

Case-Based Reasoning (CBR) systems solve new problems using others which have been previously resolved in a case memory, where each case represents a solved situation. Therefore, the case memory size and its organization influences on the computational time needed to solve new situations. For this reason, we organize the memory using a Self-Organization Map for defining patterns to allow system to do a selective retrieval using only the cases of the most suitable pattern. This works presents a case-based maintenance to incrementally introduce knowledge in SOM without retraining it because this process is very expensive in terms of computational time. The strategy is semi-supervised because we use the feedback provided by the expert and, at the same time, the self-organization of cases when clusters are readjusted. Results show a successful case-based maintenance.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 169.00
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
Softcover Book
USD 219.99
Price excludes VAT (USA)
  • Compact, lightweight edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Aamodt, A., Plaza, E.: Case-based reasoning: Foundations issues, methodological variations and system approaches. AI Communications, Vol. 7 (1994) 39–59.

    Google Scholar 

  2. Kohonen, T.: Self-Organization and Associative Memory. Springer Series in Information Sciences. Vol. 8. Springer Berlin Heidelberg (1989).

    Google Scholar 

  3. Fornells, A., Golobardes, E., Vernet, D., Corral, G.: Unsupervised case memory organization: Analysing computational time and soft computing capabilities. In 8th European Conference on Case-Based Reasoning. LNAI. Vol. 4106. Springer-Verlag (2006) 241–255.

    Article  Google Scholar 

  4. Kaski, S., Kangas, J., Kohonen T.: Bibliography of Self-Organizing Map (SOM) Papers: 1981–1997. http://www.cis.hut.fi/research/refs/ (1998).

    Google Scholar 

  5. Oja, M., Kaski, S., Kohonen, T.: Bibliography of Self-Organizing Map (SOM) Papers: 1998–2001. http://www.cis.hut.fi/research/refs/ (2003).

    Google Scholar 

  6. Fornells, A., Golobardes, E., Vilasís, X., J. Martí: Integration of strategies based on relevance feedback into a tool for retrieval of mammographic images. In 7th International Conference on Intelligent Data Engineering and Automated Learning. LNCS. Vol. 4224. Springer-Verlag (2006) 116–124.

    Article  Google Scholar 

  7. Fornells, A., Golobardes, E., Martorell, J.M., Garrell, J.M., Bernadó, E., Macià N: Measuring the applicability of self-organization maps in a case-based reasoning system. In 3rd Iberian Conference on Pattern Recognition and Image Analysis. LNCS. Vol. 4478. Springer-Verlag (2007) 532–539.

    Google Scholar 

  8. Fornells, A., Golobardes, E., Martorell, J.M., Garrell, J.M., Bernadó, E., Macià, N.: A methodology for analyzing the case retrieval from a clustered case memory. In 7th International Conference on Case-Based Reasoning, LNAI. Springer-Verlag (2007) In press.

    Google Scholar 

  9. Blake, C.L., Merz, C.J.: UCI repository of machine learning databases (1998).

    Google Scholar 

  10. Fritzke, B.: Growing cell structures-a self organizing network for unsupervised learning. Neural Networks. Vol 7, Number 9 (1994) 1441–1460.

    Article  Google Scholar 

  11. Fritzke, B.: Growing self-organizing networks, why? In ESANN’96: European Symposium on Artificial Neural Networks (1996) 61–72.

    Google Scholar 

  12. White, R. H.: Competitive hebbian learning: Algorithms and demonstrations. Neural Networks. Vol 5, Number 2 (1992) 261–275.

    Article  Google Scholar 

  13. Fritzke, B.: Growing grid-a self organizing network with constant neighborhood range and adaptation strength. Neural Processing Letters. Vol 5, Number 2 (1995) 9–13.

    Article  Google Scholar 

  14. Bauer, H., Villmann, T.: Growing a hypercubical output space in a self-organizing feature map. IEEE Trans. on Neural Networks. Vol 8, Number 2 (1997) 218–226.

    Article  Google Scholar 

  15. Benabdeslem, K.: Hybrid neural system for time series prediction. In 28th International conference on information technology interface. IMAC/IEEE (2006) 349–354.

    Google Scholar 

  16. Corchado, E., Corchado, J.M., Aiken, J.: IBR retrieval method based on topology preserving mappings. Journal of Experimental & Theoretical Artificial Intelligence. Vol. 16, Number 3 (2004) 145–160.

    Article  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Editors and Affiliations

Rights and permissions

Reprints and permissions

Copyright information

© 2007 Springer-Verlag Berlin Heidelberg

About this chapter

Cite this chapter

Fornells, A., Golobardes, E. (2007). Case-Base Maintenance in an Associative Memory Organized by a Self-Organization Map. In: Corchado, E., Corchado, J.M., Abraham, A. (eds) Innovations in Hybrid Intelligent Systems. Advances in Soft Computing, vol 44. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74972-1_41

Download citation

  • DOI: https://doi.org/10.1007/978-3-540-74972-1_41

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-74971-4

  • Online ISBN: 978-3-540-74972-1

  • eBook Packages: EngineeringEngineering (R0)

Publish with us

Policies and ethics