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SIAMIS
2008
93views more  SIAMIS 2008»
15 years 6 months ago
Convex Source Support and Its Application to Electric Impedance Tomography
The aim in electric impedance tomography is to recover the conductivity inside a physical body from boundary measurements of current and voltage. In many situations of practical im...
Martin Hanke, Nuutti Hyvönen, Stefanie Reussw...
SIAMJO
2008
93views more  SIAMJO 2008»
15 years 6 months ago
Multivariable Utility Functions
Abstract. Utility functions of several variables are ubiquitous in economics. Their maximization requires inversion of the gradient map. Using convex analysis tools, we provide a r...
Maria B. Chiarolla, Ulrich G. Haussmann
SIAMJO
2008
85views more  SIAMJO 2008»
15 years 6 months ago
Explicit Reformulations for Robust Optimization Problems with General Uncertainty Sets
We consider a rather general class of mathematical programming problems with data uncertainty, where the uncertainty set is represented by a system of convex inequalities. We prove...
Igor Averbakh, Yun-Bin Zhao
SIGIR
2008
ACM
15 years 6 months ago
Improving biomedical document retrieval using domain knowledge
Research articles typically introduce new results or findings and relate them to knowledge entities of immediate relevance. However, a large body of context knowledge related to t...
Shuguang Wang, Milos Hauskrecht
SIGIR
2008
ACM
15 years 6 months ago
Evaluation over thousands of queries
Information retrieval evaluation has typically been performed over several dozen queries, each judged to near-completeness. There has been a great deal of recent work on evaluatio...
Ben Carterette, Virgiliu Pavlu, Evangelos Kanoulas...