Data privacy is a major issue for companies today. Risks can come from external attacks or from internal users disclosing sensitive data to the public. In the latter case, restricting user access to data mitigates the risk. Thanks to role-based access models, users see only the data that they need for their work. This paper presents a methodology for assessing how effective such restrictions ar...

This article suggests that the fundamental haploid-diploid cycle of eukaryotic sex exploits a rudimentary form of the Baldwin effect. With this explanation for the basic cycle, the other associated phenomena can be explained as evolution tuning the amount and frequency of learning experienced by an organism. Using the well-known NK model of fitness landscapes, it is shown that varying landscape...

let $s$ be a monoid. in this paper, we prove every class of $s$-acts having a flatness property is closed underdirected colimits, it extends some known results. furthermore thisresult implies that every $s$-act has a flatness cover if and only if it has a flatness precover.

Lenses are a heavily studied form of bidirectional transformation, with diverse applications including database view updating, software development and memory management. Previous work has explored lenses category-theoretically, and established that the category of lenses for a fixed ‘view’ V is, up to isomorphism, the category of algebras for a particular monad on set/V . It has recently been ...

In tabletop construction scenarios, robots work with vertically or horizontally stacked object structures. In order to form such structures, they need to recognize and correctly model closely placed objects in such structures. Depending on the robot’s point of view and the objects’ positions, it is likely that objects closely located or in contact partially occlude each other, and as a result i...

In this contribution we consider the elfect of a class of "averaging operators" on isotropic fitness landscapes. Expbcit expressions for the correlation function of the averaged landscapes are derived. A new class of tunably rugged landscapes, obtained by iterated snlooth-

Many techniques have been developed in order to accelerate the visualization of large triangle meshes. Level of Detail techniques can be used to create view-dependent approximations of wide range scenes with low occlusion, such as landscapes. For highly occluded scenes there exist many occlusion culling techniques, which discard occluded parts of the scene before rendering. This can drastically...

Identification of real-world systems is often applied in closed loop due to stability, performance or safety constraints. However, when considering Linear Parameter-Varying (LPV) systems, closed-loop identification is not well-established despite the recent advances in prediction error approaches. Building on the available results, the paper proposes the closed-loop generalization of a recently...

March-April 2014 We tend to think of conflict as bad and compromise as good. But how should we view conflict that exposes potential threats to the environment and health? And what about a compromise between litigants that may adversely affect the interests of third parties or undermine public health? There can be few places in the country where this issue has become more pressing than in my hom...

We recently introduced an efficient technique for out-of-core rendering and management of large textured landscapes. The technique, called Batched Dynamic Adaptive Meshes (BDAM), is based on a paired tree structure: a tiled quadtree for texture data and a pair of bintrees of small triangular patches for the geometry. These small patches are TINs that are constructed and optimized off-line with ...