نتایج جستجو برای: mitra

تعداد نتایج: 3139  

Journal: :Math. Program. 2011
Csaba I. Fábián Gautam Mitra Diana Roman

Second-order stochastic dominance (SSD) is widely recognised as an important decision criterion in portfolio selection. Unfortunately, stochastic dominance models are known to be very demanding from a computational point of view. In this paper we consider two classes of models which use SSD as a choice criterion. The first, proposed by Dentcheva and Ruszczyński (2006), uses a SSD constraint, wh...

Journal: :Math. Program. Comput. 2012
Victor Zverovich Csaba I. Fábián Eldon F. D. Ellison Gautam Mitra

We report a computational study of two-stage SP models on a large set of benchmark problems and consider the following methods: (i) Solution of the deterministic equivalent problem by the simplex method and an interior point method, (ii) Benders decomposition (L-shaped method with aggregated cuts), (iii) Regularised decomposition of Ruszczyński (Math Program 35:309–333, 1986), (iv) Benders deco...

2017
Dalkhat M. Ediev

This paper aims to improve the accuracy of parametric extrapolations of the death rates into old age by constraining the extrapolation model on presumed life expectancy at old age. Such a task is particularly important in cases where the data quality at old age, in particular the age exaggeration, is not sufficient for reliable mortality estimates. Our tests are based on period data from the Hu...

2009
DAVID GALVIN FABIO MARTINELLI KAVITA RAMANAN PRASAD TETALI

The classical hard core model from statistical physics, with activity λ > 0 and capacity C = 1, on a graph G, concerns a probability measure on the set I(G) of independent sets of G, with the measure of each independent set I ∈ I(G) being proportional to λ|I|. When G is a (b + 1)-regular tree, a generalization of the hard core model that has capacity C larger than one was studied by Mitra et al...

Journal: :Signal Processing 2003
Il Koo Kim Nam Ik Cho Sanjit K. Mitra

Recently, an image compression algorithm based on the warped discrete cosine transform has been proposed (Cho and Mitra, IEEE Trans Circuits Systems Video Technol 10 (8) (2000) 1364). The algorithm outperforms JPEG, especially for images with high frequency contents and compound images consisting of picture and text. In this paper, we improve the compression performance by optimizing the parame...

Journal: :Statistics and Computing 2007
Sinjini Mitra Nicole A. Lazar Yanxi Liu

Face recognition has important applications in forensics (criminal identification) and security (biometric authentication). The problem of face recognition has been extensively studied in the computer vision community, from a variety of perspectives. A relatively new development is the use of facial asymmetry in face recognition, and we present here the results of a statistical investigation of...

2012
Frédéric Abergel Bikas K. Chakrabarti Anirban Chakraborti Asim Ghosh

We discuss several stochastic optimization strategies in games with many players having large number of choices (Kolkata Paise Restaurant Problem) and two choices (minority game problem). It is seen that a stochastic crowd avoiding strategy gives very efficient utilization in KPR problem. A slightly modified strategy in the minority game problem gives full utilization but the dynamics stops aft...

2017
Tapan Mitra

In the theory of optimal intertemporal allocation, the assumption of a convex feasible set has played a dominant role. In recent years, several contributions have focused on the implications for this theory, when the feasible set does not have the convexity property. (See, in particular, Skiba (1978), Majumdar and Mitra (1982, 1983), Dechert and Nishimura (1983), Majumdar and Nermuth (1982), an...

2016
Mitra Naseri

Back ground: Urinary tract infection is one of the most common bacterial infections in pediatric group. Over the last decades the management of children with febrile urinary tract infection has become quite controversial. Although different guidelines had been designed to determine high risk cases, there is no global Consensus about imaging and follow up. In this chapter the author aim to discu...

Journal: :KACANEGARA Jurnal Pengabdian pada Masyarakat 2022

Keterbatasan lahan sebagai salah satu permasalahan utama dalam kegiatan pertanian dan perikanan di kota besar, tidak terkecuali Kelurahan Sumur Pacing Margasari, Kota Tangerang. Jumlah pekarangan yang tersedia sangatlah sedikit sehingga diperlukan inovasi teknologi agar bisa dimanfaatkan secara optimal. Tujuan pengabdian masyarakat ini adalah optimalisasi bidang dapat optimal oleh Kelompok Wani...

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