A large share of the ads displayed by digital publishers (e.g., newspapers and blogs) are sold via intermediaries Google), that have market power reportedly allocate in an opaque way. We study incentives intermediary to disclose consumer information advertisers when auctioning ad impressions. show disclosing enables optimize allocation on multi-homing consumers is profitable only if advertising...

This paper proposes an impact time control guidance law based on exact nonlinear kinematics equations. To address the problem of providing enhanced intercept accuracy, we formulated error variable whose regulation ensures fulfillment required tasks without time-to-go estimation. Based Lyapunov stability theory, a desired line-of-sight rate profile that satisfies convergence was constructed, fro...

Abstract Objective An intriguing link between gut and synovial inflammation exists in patients with spondyloarthropathy (SpA), illustrated by the high frequency of microscopically inflammatory gut lesions observed in these patients. We hypothesise that aberrant homing of mucosal T cells might play a role in the induction/perpetuation of arthritis in SpA. Here, we analyse the expression of the h...

Many animals, including insects, successfully engage in visual homing. We describe a system that allows a mobile robot to home. Specifically, we propose a simple, yet robust, homing scheme that only relies upon the observation of the bearings of visible landmarks. However, this can easily be extended to include other visual cues. The homing algorithm allows a mobile robot to home incrementally ...

The structure of the LAGLIDADG intron-encoded homing endonuclease I-CreI bound to homing site DNA has been determined. The interface is formed by an extended, concave beta sheet from each enzyme monomer that contacts each DNA half-site, resulting in direct side-chain contacts to 18 of the 24 base pairs across the full-length homing site. The structure indicates that I-CreI is optimized to its r...

UNLABELLED Path integration, the updating of position and orientation during movement, often involves tracking a home location. Here, we examine processes that could contribute to successful location tracking in humans. In particular, we investigate a homing vector model of path integration, whereby a navigator continuously tracks a trajectory back to the home location. To examine this model, w...

Multi-homing, a strategy where a developer is publishing products for multiple platforms, is studied in this paper using descriptive analysis. The data of over 850,000 applications and their developers were collected from Apple App Store, Google Play, and Microsoft’s Windows Phone Marketplace. The developers publishing for several software ecosystems were then identified. The findings show that...

This paper presents a mechanism of learning a homing strategy, which is mostly independent from the environment. It is comparable with theoretic homing models in insects like the snapshot model (Cartwright and Collett, 1983) or the Average Landmark Vector model (Lambrinos et al., 2000). In contrast to those models, the navigation strategies presented in this paper are not pre-defined but learne...

This paper presents the analysis of vision-based homing behaviors that provide self-positioning of a mobile robot. The control schemes of the homing behaviors are based on a new approach that describes robot moves in terms of regulation by image features, hence avoiding the usual step of three-dimensional reconstruction of the scene with respect to the camera. Homing behaviors are the key eleme...