... challenging assumptions of profit and cost centre performance measurement. International Journal of ... Statistics -2 Log- Likelihood 1064.5 Chi-Square 44.9 Degrees of freedom 12 Significance 0.000 Cox ...
... particular organic transfer dyads in the centre of the analysis. However, we examine the consequen...-0.164 ([dagger]) HQ * willingness -0.076 R square 0.034 0.415 0.444 Adjusted R square -0.001 0.370 0...
Tracking moving objects is a vital visual task for the survival of an animal. We describe oscillatory neural network models of visual attention with a central element that can track a moving target among a set of distracters on the screen. At the initial stage, the model forms the focus of attention on an arbitrary object that is considered as a target. Other objects are treated as distracters. We present here two models: 1) synchronisation based model designed as a network of phase oscillators and 2) spiking neural model which is based on the idea of resource-limited parallel visual pointers. Selective attention and the tracking process are represented by the partial synchronisation between the central unit and a subgroup of peripheral elements. Simulation results are in overall agreem...
... of quickly and roughly calculating the centre of an object in the receptive field. Model descrip... oscillators located in the vertices of a square grid. We refer to these oscillators as peripheral ...
The Self-Organizing Map (SOM) is a popular unsupervised neural network able to provide effective clustering and data visualization for data represented in multidimensional input spaces. In this paper, we describe Fast Learning SOM (FLSOM) which adopts a learning algorithm that improves the performance of the standard SOM with respect to the convergence time in the training phase. We show that FLSOM also improves the quality of the map by providing better clustering quality and topology preservation of multidimensional input data. Several tests have been carried out on different multidimensional datasets, which demonstrate better performances of the algorithm in comparison with the original SOM.
... to lead the weight vectors towards the centre of their respective Voronoi cells in the input spa... input space and all maps have a 80 ? 80 square lattice. The training phase for each epoch is done...
We present an approach for probabilistic contour prediction within the framework of an object tracking system. We combine level-set methods for image segmentation with optical flow estimations based on probability distribution functions (pdfs) calculated at each image position. Unlike most recent level-set methods that consider exclusively the sign of the level-set function to determine an object and its background, we introduce a novel interpretation of the value of the level-set function that reflects the confidence in the contour. To this end, in a sequence of consecutive images, the contour of an object is transformed according to the optical flow estimation and used as the initial object hypothesis in the following image. The values of the initial level-set function are set accordi...
...sum of squared differences) measures between a small patch of an ... be estimated by the translation of the centre of gravity of the inside masks χ^sup t-1^^sub 2^ ...
... variance extracted and compared its square root to the correlation coefficients among the sca...(2000). In search of centre of excellence: Network embeddedness and subsidiary...
... financial support provided by the Western Centre for Economic Research, the Centre for Internationa... 3930 3930 3930 Time control No No No R-squared 61.74% 62.01% 62.07% Wald's Chi 2342.74 *** 2372.6...
This study examines the relationship between social capital that arises from individual relations and individual innovativeness. Social capital is considered a multidimensional construct and individual innovativeness is measured through six different indicators of scientific production. Individual social capital is compared with the innovative performance of each individual in a whole department. Our work shows that the capacity to access and to mobilize resources through these relations is a key factor in increasing individual innovativeness in a context in which it may be measured. This questions the importance of an individual's position in a network as well as the structure of the network with respect to innovativeness.
... business innovation within the firm has centred, above all, on the concept of intellectual capital... Each one of these relations was placed in squared matrices (adjacency matrices) representing the num...
... with each other (p-value of [chi square] = 0.000) and this collinearity may affect interpr... services, export link business service centre, http://www.entreprisecanada.com/servlet/BlobServe...
... the above ideas are not always easy to square is also shown by the way they have been received i...The Interdisciplinary Centre for Compariative Research in the Social Sciences (...
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