In Lowest-Unmatched Price Auctions (LUPA) all participants pay a bidding fee and the lowest bid placed by only one participant wins. Many LUPAs do not specify what happens with the item on offer if there is no unmatched bid. The item may remain with the auctioneer which may appear unfair given that the auctioneer collects the bidding fees. We show that in a symmetric Nash equilibrium of a LUPA ...

This work addresses the resolution of penalized least-squares problems using proximal gradient algorithm (PGA). PGA can be accelerated by preconditioning strategies. However, typical effective choices preconditioners may correspond to intricate matrices that are not easily inverted, leading increased complexity in computation proximity step. To relax these requirements, we propose an unmatched ...

In this paper we describe a method to compute the collineation matrix between two unmatched images of an unknown planar contour described using a B-spline snake. The two images of the contour are matched and the collineationmatrix is used to servo a camera mounted on the robot end-e ector using a 2 1/2 D visual servoing technique. The experimental results, obtained using common planar objects, ...

A methodology for the design of sliding mode controllers for linear systems subjected to matched and unmatched perturbations is proposed. It is considered that the control signal is applied through a firstorder low-pass filter. The technique is basedon the existence of an attracting (invariant) ellipsoid such that the convergence to a quasi-minimal region of the origin using the suboptimal cont...

In this paper, we discuss a design technique to reduce the power dissipation of CML buffers for on-chip transmissionlines. CML buffers can operate in higher frequency than conventional static CMOS buffers. On the other hand, the power dissipation is larger than that of the static CMOS buffers. We reduce the power dissipation by using an impedance-unmatched driver. From the pole frequency analys...

This paper presents an observer-based discrete variable structure controller for linear multi-variable systems with unmatched additive uncertainties, an extension of the results reported in Tang and Misawa (1998) to the output feedback case. It is shown that the incorporation of a prediction observer with uncertainty estimation into the controller guarantees the attractiveness and invariance of...

Edges are important features for tasks like object detection and vision-based navigation. In this paper, a novel real-time capable stereo edge refinement technique is presented. It propagates confidence and consistency along the detected edges, which reduces false matches significantly. Unmatched pixels are safely recovered by interpolation. We also investigate suitable support regions for edge...

This paper presents a state feedback discrete variable structure controller for linear multi-variable systems with unmatched additive uncertainties, a generalization of the controller for single-input systems by Misawa (1997). It is shown that the controller guarantees the attractiveness and invariance of the boundary layer. In contrast to existing schemes, it utilizes one sliding hyperplane re...