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The zero-frequency problem: estimating the probabilities of novel events in adaptive text compression
Open accessAbstract
Approaches to the zero-frequency problem in adaptive text compression are discussed. This problem relates to the estimation of the likelihood of a novel event occurring. Although several methods have been used, their suitability has been on empirical evaluation rather than a well-founded model. The authors propose the application of a Poisson process model of novelty. Its ability to predict novel tokens is evaluated, and it consistently outperforms existing methods. It is applied to a practical statistical coding scheme, where a slight modification is required to avoid divergence. The result is a well-founded zero-frequency model that explains observed differences in the performance of existing methods, and offers a small improvement in the coding efficiency of text compression over the best method previously known.>
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Cited by
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Panayotov, V., Chen, G., Povey, D., & Khudanpur, S. (2015) · 2015 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) · doi:10.1109/icassp.2015.7178964 · Cited by 6,072
Code completion with statistical language models
Raychev, V., Vechev, M., & Yahav, E. (2014) · Proceedings of the 35th ACM SIGPLAN Conference on Programming Language Design and Implementation · doi:10.1145/2594291.2594321 · Cited by 555
Zhou, J., Zhang, H., & Lo, D. (2012) · 2012 34th International Conference on Software Engineering (ICSE) · doi:10.1109/icse.2012.6227210 · Cited by 507
A Sentence-Based Copy Detection Approach for Web Documents
Yerra, R., & Ng, Y.-K. (2005) · Lecture Notes in Computer Science · doi:10.1007/11539506_70 · Cited by 53
Metadata
- Authors
- Witten, I. H., & Bell, T. C.
- Venue
- IEEE Transactions on Information Theory
- Published
- 1991-07
- Volume
- 37
- Issue
- 4
- Pages
- 1085-1094
- ISSN
- 0018-9448 (ISSN-L)
- OpenAlex
- W2113641473
- Cited by
- 729
- References
- 0
- FWCI
- 3.35
- Type
- journal article
- Language
- en
- Open access
- green
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- Witten, I. H., & Bell, T. C. (1991). The zero-frequency problem: estimating the probabilities of novel events in adaptive text compression. IEEE Transactions on Information Theory. https://doi.org/10.1109/18.87000
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