Skip to main content

Distributed algorithm for finding a core of a tree network

  • Contributed Papers
  • Conference paper
  • First Online:
SOFSEM '95: Theory and Practice of Informatics (SOFSEM 1995)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1012))

Abstract

A core of a graph G = (V, E) is a path P in G which minimizes d(P)=∑ v∈V d(v, P) where d(v,P) is the distance of vertex v from P. Finding a core of a network is essential in locating the best sites to set up service facilities. Here we present the first distributed algorithm which finds a core of a tree network in O(D) time using O(n) messages, where D and n are the diameter and the number of vertices of G respectively.

This research is partially supported by the Swedish Council for Engineering Sciences.

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

Access this chapter

Institutional subscriptions

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Albacea, E. A.: Parallel algorithm for finding a core of a tree network. Information Processing Letters 51 (1994) 223–226

    Google Scholar 

  2. Bar-Ilan, J., Peleg, D.: Approximation algorithms for selecting network centers. Workshop on Algorithms and Data Structures (1991) 343–354

    Google Scholar 

  3. Hakim, S. L.: Optimal distribution of switching centers in a communication network and some related graph theoretical problems. Opns. Res. 13 (1965) 462–475

    Google Scholar 

  4. Korach, E.: Distributed algorithms for finding centers and medians in networks. ACM Trans. on Programming Languages and Systems 6(3) (1984) 380–401

    Google Scholar 

  5. Minieka, E., Patel, N. H.: On finding the core of a tree with a specified length. J. Algorithms 4 (1983) 345–352

    Google Scholar 

  6. Morgan, C. A., Slater, P. J.: A linear algorithm for a core of a tree. J. Algorithms. 1 (1980) 247–258

    Google Scholar 

  7. Peng, S., Lo, W.: A simple optimal parallel algorithm for a core of a tree. J. of Parallel and Distributed Computing 20 (1994) 388–392

    Google Scholar 

  8. Shier, D. R.: A min-max theorem for p-center problems on a tree. Transportation Sci. 11 (1977) 243–252

    Google Scholar 

  9. Slater, P. J.: Locating central paths in a graph. Transportation Sci. 16 (1982) 1–18

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Editor information

Miroslav Bartosek Jan Staudek Jirí Wiedermann

Rights and permissions

Reprints and permissions

Copyright information

© 1995 Springer-Verlag Berlin Heidelberg

About this paper

Cite this paper

Jennings, E. (1995). Distributed algorithm for finding a core of a tree network. In: Bartosek, M., Staudek, J., Wiedermann, J. (eds) SOFSEM '95: Theory and Practice of Informatics. SOFSEM 1995. Lecture Notes in Computer Science, vol 1012. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-60609-2_22

Download citation

  • DOI: https://doi.org/10.1007/3-540-60609-2_22

  • Published:

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-60609-3

  • Online ISBN: 978-3-540-48463-9

  • eBook Packages: Springer Book Archive

Publish with us

Policies and ethics