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A note on concave utility functions 1

by Martin Monti, Simon Grant, Daniel Osherson , 2004
"... The classical theory of preference among monetary bets represents people as expected utility maximizers with nondecreasing concave utility functions. Critics of this account often rely on assumptions about preferences over wide ranges of total wealth. We derive a prediction of the theory that bears ..."
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The classical theory of preference among monetary bets represents people as expected utility maximizers with nondecreasing concave utility functions. Critics of this account often rely on assumptions about preferences over wide ranges of total wealth. We derive a prediction of the theory that bears

Fisher Equilibrium Price with a Class of Concave Utility Functions

by Ning Chen, Xiaotie Deng, Xiaoming Sun, Andrew Chi-chih Yao - IN THE PROCEEDINGS OF ESA 2004 , 2004
"... We study efficient algorithms for computing equilibrium price in the Fisher model for a class of nonlinear concave utility functions, the logarithmic utility functions. A duality relation is derived between buyers and sellers under such utility functions. It is applied to design a polynomial time a ..."
Abstract - Cited by 13 (1 self) - Add to MetaCart
We study efficient algorithms for computing equilibrium price in the Fisher model for a class of nonlinear concave utility functions, the logarithmic utility functions. A duality relation is derived between buyers and sellers under such utility functions. It is applied to design a polynomial time

Market equilibrium in exchange economies with some families of concave utility functions

by Bruno Codenotti, Kasturi Varadarajan
"... We consider the problem of computing equilibrium prices for exchange economies. We tackle this problem under the assumption that the traders have either CES (constant elasticity of substitution) utility functions or a subfamily of ASC (additively separable concave) utilities. For the subfamily of AS ..."
Abstract - Cited by 2 (2 self) - Add to MetaCart
We consider the problem of computing equilibrium prices for exchange economies. We tackle this problem under the assumption that the traders have either CES (constant elasticity of substitution) utility functions or a subfamily of ASC (additively separable concave) utilities. For the subfamily

Maximization for non-concave utility functions in discrete-time financial market models. Submitted

by Laurence Carassus, Universite ́ De Reims , 2014
"... ar ..."
Abstract - Cited by 3 (1 self) - Add to MetaCart
Abstract not found

Snakes, Shapes, and Gradient Vector Flow

by Chenyang Xu, Jerry L. Prince - IEEE TRANSACTIONS ON IMAGE PROCESSING , 1998
"... Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. Problems associated with initialization and poor convergence to boundary concavities, however, have limited their utility. This paper presents a new extern ..."
Abstract - Cited by 755 (16 self) - Add to MetaCart
Snakes, or active contours, are used extensively in computer vision and image processing applications, particularly to locate object boundaries. Problems associated with initialization and poor convergence to boundary concavities, however, have limited their utility. This paper presents a new

Coverage Control for Mobile Sensing Networks

by Jorge Cortes, Sonia Martínez, Timur Karatas, Francesco Bullo , 2002
"... This paper presents control and coordination algorithms for groups of vehicles. The focus is on autonomous vehicle networks performing distributed sensing tasks where each vehicle plays the role of a mobile tunable sensor. The paper proposes gradient descent algorithms for a class of utility functio ..."
Abstract - Cited by 582 (49 self) - Add to MetaCart
This paper presents control and coordination algorithms for groups of vehicles. The focus is on autonomous vehicle networks performing distributed sensing tasks where each vehicle plays the role of a mobile tunable sensor. The paper proposes gradient descent algorithms for a class of utility

VisualSEEk: a fully automated content-based image query system

by John R. Smith, Shih-fu Chang , 1996
"... We describe a highly functional prototype system for searching by visual features in an image database. The VisualSEEk system is novel in that the user forms the queries by diagramming spatial arrangements of color regions. The system finds the images that contain the most similar arrangements of ..."
Abstract - Cited by 762 (31 self) - Add to MetaCart
We describe a highly functional prototype system for searching by visual features in an image database. The VisualSEEk system is novel in that the user forms the queries by diagramming spatial arrangements of color regions. The system finds the images that contain the most similar arrangements

NeXt generation/dynamic spectrum access/cognitive Radio Wireless Networks: A Survey

by Ian F. Akyildiz, Won-Yeol Lee, Mehmet C. Vuran, Shantidev Mohanty - COMPUTER NETWORKS JOURNAL (ELSEVIER , 2006
"... Today's wireless networks are characterized by a fixed spectrum assignment policy. However, a large portion of the assigned spectrum is used sporadically and geographical variations in the utilization of assigned spectrum ranges from 15% to 85% with a high variance in time. The limited availabl ..."
Abstract - Cited by 746 (15 self) - Add to MetaCart
Today's wireless networks are characterized by a fixed spectrum assignment policy. However, a large portion of the assigned spectrum is used sporadically and geographical variations in the utilization of assigned spectrum ranges from 15% to 85% with a high variance in time. The limited

Optimizing Search Engines using Clickthrough Data

by Thorsten Joachims , 2002
"... This paper presents an approach to automatically optimizing the retrieval quality of search engines using clickthrough data. Intuitively, a good information retrieval system should present relevant documents high in the ranking, with less relevant documents following below. While previous approaches ..."
Abstract - Cited by 1314 (23 self) - Add to MetaCart
approaches to learning retrieval functions from examples exist, they typically require training data generated from relevance judgments by experts. This makes them difficult and expensive to apply. The goal of this paper is to develop a method that utilizes clickthrough data for training, namely the query

KLEE: Unassisted and Automatic Generation of High-Coverage Tests for Complex Systems Programs

by Cristian Cadar, Daniel Dunbar, Dawson Engler
"... We present a new symbolic execution tool, KLEE, capable of automatically generating tests that achieve high coverage on a diverse set of complex and environmentally-intensive programs. We used KLEE to thoroughly check all 89 stand-alone programs in the GNU COREUTILS utility suite, which form the cor ..."
Abstract - Cited by 557 (15 self) - Add to MetaCart
it found 56 serious bugs, including three in COREUTILS that had been missed for over 15 years. Finally, we used KLEE to crosscheck purportedly identical BUSYBOX and COREUTILS utilities, finding functional correctness errors and a myriad of inconsistencies.
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