Results 31 to 40 of about 19,611 (111)
The Lov\'asz Hinge: A Novel Convex Surrogate for Submodular Losses [PDF]
, 2017 Learning with non-modular losses is an important problem when sets of predictions are made simultaneously. The main tools for constructing convex surrogate loss functions for set prediction are margin rescaling and slack rescaling.
Blaschko, Matthew, Yu, Jiaqian
core +2 more sources
REWW‐ARM—Remote Wire‐Driven Mobile Robot: Design, Control, and Experimental Validation
Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.The Remote Wire‐Driven robot “REWW‐ARM” demonstrates a new concept of remote actuation that separates electronics from harsh environments while retaining closed‐loop control. Combining tendon‐sheath mechanisms with decoupled joints, it achieves efficient power transmission and autonomous locomotion, manipulation, and underwater operation, suggesting ...
Takahiro Hattori +4 more
wiley +1 more source
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.The continental margin of SE New Zealand is strongly influenced by the Southland Current and associated water masses. This new seismic stratigraphic study of the margin has revealed a range of depositional mounds and erosional channels that document the close interaction of turbidity and bottom currents in shaping the margin from the Mid‐Eocene onward.
Onyekachi N. Ibezim +3 more
wiley +1 more source
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 1, March 2026.ABSTRACT Crystal plasticity simulations offer insights into the anisotropic deformation of polycrystalline materials such as metals and alloys. However, rate‐independent crystal plasticity models encounter the Taylor ambiguity, where the active slip systems and plastic slip magnitudes are not uniquely defined, posing well‐known numerical challenges [1].
Felix Steinmetz, Lisa Scheunemann
wiley +1 more source
Stable Price Dispersion under Heterogeneous Buyer Consideration
The RAND Journal of Economics, Volume 57, Issue 1, Page 103-121, Spring 2026.ABSTRACT We study the pricing of homogeneous products sold to customers who consider different sets of suppliers. We identify prices that are stable in the sense that no firm wishes to undercut a rival or to raise its price when rivals are able to respond by offering special deals.
David P. Myatt, David Ronayne
wiley +1 more source
Optimal Refund Mechanism With Consumer Learning
The RAND Journal of Economics, Volume 57, Issue 1, Page 205-224, Spring 2026.ABSTRACT This article studies the optimal refund mechanism when an uninformed buyer learns about their valuation over time. We consider various refund mechanisms including simple return policies (no returns or free returns), and stochastic return policies, which allow the buyer to keep the product with some probability upon receiving a refund.
Qianjun Lyu
wiley +1 more source
Planning in management: identifying alternative ways of improving performance toward best practices
International Transactions in Operational Research, Volume 33, Issue 2, Page 1362-1384, March 2026.Abstract Planning is an important part of the management of organizations, which deals with the setting of targets that guide the actions needed to improve performance. Decision making is at the essence of planning, as it involves the identification of alternative directions for improvement and the selection of a future course of action.
Juan F. Monge, José L. Ruiz
wiley +1 more source
Technical Efficiency Evaluation: Naturally Dual! [PDF]
We provide a dual perspective on technical efficiency evaluation, in two respects. First, we build on the price assumptions implicitly associated with the notion of technical efficiency in a general equilibrium framework to characterize a set of ...
Laurens Cherchye, Tom Van Puyenbroeck
core
In this paper, we suggest that inefficiency may be an indirect, on-the-job compensation to agents in an organization. We show how to use actual production data to reveal the trade-offs between different inefficiencies (slacks).
Bogetoft, Peter, Hougaard, Jens Leth
core +1 more source
On polyhedral approximations of the positive semidefinite cone
, 2018 Let $D$ be the set of $n\times n$ positive semidefinite matrices of trace equal to one, also known as the set of density matrices. We prove two results on the hardness of approximating $D$ with polytopes. First, we show that if $0 < \epsilon < 1$ and $A$
Fawzi, Hamza
core