The Lack of Convexity of the Relevance-Compression Function

التفاصيل البيبلوغرافية
العنوان: The Lack of Convexity of the Relevance-Compression Function
المؤلفون: Parker, Albert E, Gedeon, Tomas, Dimitrov, Alexander
سنة النشر: 2022
المجموعة: Computer Science
Mathematics
مصطلحات موضوعية: Computer Science - Information Theory, 68P30 94A34
الوصف: In this paper we investigate the convexity of the relevance-compression function for the Information Bottleneck and the Information Distortion problems. This curve is an analog of the rate-distortion curve, which is convex. In the problems we discuss in this paper, the distortion function is not a linear function of the quantizer, and the relevance-compression function is not necessarily convex (concave), but can change its convexity. We relate this phenomena with existence of first order phase transitions in the corresponding Lagrangian as a function of the annealing parameter.
Comment: 8 pages, 2 figures
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2204.10957
رقم الأكسشن: edsarx.2204.10957
قاعدة البيانات: arXiv