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arXiv 1302.2856cs.ITmath.IT
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用于数据压缩的组合非平稳预测、优化和混合

Combining non-stationary prediction, optimization and mixing for data compression

Christopher Mattern

摘要:

本文提出了一种非平稳二元序列的建模方法,预测即将到来的符号的概率。在研究了预测模型之后,我们在两个非人工测试案例中评估了其性能。首先,该模型进行了比较,拉普拉斯和Krichevsky-Trofimov估计。其次,提出了一种压缩Burrows-Wheeler变换输出的统计集成模型,并对其进行了评价。提出了一种系统的个体模式和集合模式参数优化方法。

英文摘要:

In this paper an approach to modelling nonstationary binary sequences, i.e., predicting the probability of upcoming symbols, is presented. After studying the prediction model we evaluate its performance in two non-artificial test cases. First the model is compared to the Laplace and Krichevsky-Trofimov estimators. Secondly a statistical ensemble model for compressing Burrows-Wheeler-Transform output is worked out and evaluated. A systematic approach to the parameter optimization of an individual model and the ensemble model is stated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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