Design of General Entropy-Constrained Successively Refinable Unrestricted Polar Quantizer

2020 ◽  
Vol 68 (6) ◽  
pp. 3369-3385
Author(s):  
Huihui Wu ◽  
Sorina Dumitrescu
Keyword(s):  
2021 ◽  
Author(s):  
Khoder Makkawi ◽  
Nourdine AIT-TMAZIRTE ◽  
Maan El Badaoui El Najjar ◽  
Nazih Moubayed

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Kamran Abbas ◽  
Nosheen Yousaf Abbasi ◽  
Amjad Ali ◽  
Sajjad Ahmad Khan ◽  
Sadaf Manzoor ◽  
...  

The medical data are often filed for each patient in clinical studies in order to inform decision-making. Usually, medical data are generally skewed to the right, and skewed distributions can be the appropriate candidates in making inferences using Bayesian framework. Furthermore, the Bayesian estimators of skewed distribution can be used to tackle the problem of decision-making in medicine and health management under uncertainty. For medical diagnosis, physician can use the Bayesian estimators to quantify the effects of the evidence in increasing the probability that the patient has the particular disease considering the prior information. The present study focuses the development of Bayesian estimators for three-parameter Frechet distribution using noninformative prior and gamma prior under LINEX (linear exponential) and general entropy (GE) loss functions. Since the Bayesian estimators cannot be expressed in closed forms, approximate Bayesian estimates are discussed via Lindley’s approximation. These results are compared with their maximum likelihood counterpart using Monte Carlo simulations. Our results indicate that Bayesian estimators under general entropy loss function with noninformative prior (BGENP) provide the smallest mean square error for all sample sizes and different values of parameters. Furthermore, a data set about the survival times of a group of patients suffering from head and neck cancer is analyzed for illustration purposes.


Author(s):  
ALEXANDER DUKHOVNY

The concept of entropy is an important part of the theory of additive measures. In this paper, a definition of entropy is introduced for general (not necessarily additive) measures as the infinum of the Shannon entropies of "subordinate" additive measures. Several properties of the general entropy are discussed and proved. Some of the properties require that the measure belongs to the class of so-called "equientropic" general measures introduced and studied in this paper. The definition of general entropy is extended to the countable case for which a sufficient condition of convergence is proved. We introduce a method of "conditional combination" of general measures and prove that in that case the general entropy possesses the "subset independence" property.


2007 ◽  
Vol 10 (1) ◽  
pp. 61-66 ◽  
Author(s):  
Yufeng Shi ◽  
Wenzhong Shi

1973 ◽  
Vol 28 (11) ◽  
pp. 1801-1813 ◽  
Author(s):  
Ingo Müller

A general entropy principle is utilized to derive restrictions on the constitutive relations for simple mixtures. The absolute temperature and chemical potentials are introduced in a novel manner and the equality of the coefficients of thermal diffusion and of the diffusion-thermo coefficients is proved for a subclass of simple mixtures by use of macroscopic arguments.


Author(s):  
Petty Jelda, Setyo Wira Rizki, Nurfitri Imro’ah

 Data survival adalah data yang menunjukkan waktu suatu individu atau objek yang dapat bertahan hidup hingga terjadinya suatu kegagalan atau kejadian tertentu. Tujuan dari penelitian ini adalah  untuk menentukan model survival dan model hazard estimasi parameter berdistribusi Rayleigh dengan metode Bayesian General Entropy Loss Function (GELF) menggunakan prior Uniform. Estimasi parameter fungsi survival dan fungsi hazard Bayesian GELF didapat dengan  mencari nilai estimasi parameter Bayesian GELF. Selanjutnya diterapkan pada data 175 pasien penderita Primary Billiary Cirrhosis (PBC) yang diperoleh dari program R versi 3.3.0 untuk mengetahui peluang individu dapat bertahan hidup. Nilai estimasi parameter Bayesian GELF dari data yang dihitung menggunakan progam R adalah 896,8008. Berdasarkan hasil estimasi parameter model survival distribusi Rayleigh metode Bayesian GELF dapat diketahui peluang seorang penderita penyakit PBC untuk bertahan hidup semakin lama semakin kecil (mendekati nol), dengan resiko kematian yang semakin besar.Kata Kunci : Distribusi Rayleigh, Bayesian GELF, Prior Uniform.


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