Now showing items 1-4 of 4

  • Arithmetic coding revisited

    Moffat, Alistair; Neal, Radford M.; Witten, Ian H. (ASSOC COMPUTING MACHINERY, 1998-07-01)
    Over the last decade, arithmetic coding has emerged as an important compression tool. It is now the method of choice for adaptive coding on multisymbol alphabets because of its speed, low storage requirements, and ...
  • Compression and full-text indexing for Digital Libraries

    Witten, Ian H.; Moffat, Alistair; Bell, Timothy C. (Springer, 1995)
    This chapter has demonstrated the feasibility of full-text indexing of large information bases. The use of modern compression techniques means that there is no space penalty: large document databases can be compressed and ...
  • The MG retrieval system: compressing for space and speed

    Bell, Timothy C.; Moffat, Alistair; Witten, Ian H.; Zobel, Justin (ACM, 1995)
    Recent advances in compression and indexing techniques have yielded a qualitative change in the feasibility of large-scale full-text retrieval.
  • Semantic and generative models for lossy text compression

    Witten, Ian H.; Bell, Timothy C.; Moffat, Alistair; Smith, Tony C.; Nevill-Manning, Craig G. (Department of Computer Science, University of Waikato, 1992)
    The apparent divergence between the research paradigms of text and image compression has led us to consider the potential for applying methods developed for one domain to the other. This paper examines the idea of "lossy" ...

Alistair Moffat has 6 co-authors in Research Commons.