Our participation in this year’s robust track aims to: (1) test how to improve the effectiveness of IR (according to MAP) using different retrieval methods with different local analysis-based query expansion methods; (2) test how to improve the retrieval robustness (according to gMAP) using RankFusion, a novel fusion technique proposed in our experiments. Our results show that although query ex...

In this work a color based, edge-region cooperative segmentation technique is presented. The segmentation process consists of two basic stages. In the first stage a novel fast vector edge detector based on the image density map is used, to solve the multidimensional boundary estimation problem. The watershed transform with some form of morphological prefiltering, is applied on the edge image to...

We study the structure of the 2D bifurcation diagram for a two-parameter family of piecewise smooth unimodal maps f with one break point. Analysing the parameters of the normal form for the border-collision bifurcation of an attracting n-cycle of the map f, we describe the possible kinds of dynamics associated with such a bifurcation. Emergence and role of border-collision bifurcation curves in...

Our XMM-Newton observations of Abell 85 confirm the extended 4 Mpc filament first detected with ROSAT, which has an X-ray temperature of about ∼ 2 keV and is probably made of groups falling on to the cluster. A comparison of the temperature map with numerical simulations show that Abell 85 had intense merging activity in the past and is not fully relaxed, even in the central region. Finally, a ...

Version control systems are widely used asynchronous collaborative systems in team-working environments, where document merging is a key function. However most existing systems only support limited semantic merging, and techniques for supporting semantic merging are strictly bound up with the merging algorithms that do syntactic merging. In this paper, we propose a flexible merging framework in...