Abstract. Recently, different models of the statistical structure of natural images have been proposed. Maximizing sparseness, or alternatively temporal coherence of linear filter outputs leads to the emergence of simple cell properties. Taking account of the basic dependencies of linear filter outputs enables modelling of complex cell and topographic properties as well. In this paper, I propos...

In this paper, under the efficient coding theory we propose a computational model to explore the intrinsic dimensionality of scene perception. This model is hierarchically constructed according to the information pathway of visual cortex: By pooling together the activity of local low-level feature detectors across a large regions of the visual fields, we build the population feature representat...

Understanding ecological processes is a prerequisite for the management of rangelands; therefore, recognition of the relationship between environmental factors and vegetation is very important. The present research aims to investigate environmental and management factors affecting rangeland vegetation distribution in Saral rangelands of Kurdistan province, Iran, in 2017. Sampling was done...

Topographic eminence is a basic level category representing all convex shaped topographic landforms rising above their immediate surroundings. As opposed to everyday objects, the properties of an eminence are dependent on how it is conceptualized and where it is delineated. Research has shown that there are multiple conceptualizations of eminences (and other landforms) depending on cultural and...

Heterogeneous and incomplete datasets are common in many real-world applications. The probabilistic nature of the Generative Topographic Mapping (GTM), which only handles complete continuous data originally, offers the ability to extend it to also visualise mixed-type and missing data as suggested in (Bishop et al., 1998a). This paper describes this generalisation of GTM and assesses the result...

We currently know little of the role of the corporate human resource (HR) function in multinational corporations regarding global talent management (GTM). GTM is explored here from two perspectives: increasing global competition for talent, and new forms of international mobility. The first considers the mechanisms of GTM, and the second, individual willingness to be mobile, especially in emerg...

This paper describes our participation in the INTERSPEECH 2009 Emotion Challenge [1]. Starting from our previous experience in the use of automatic classification for the validation of an expressive corpus, we have tackled the difficult task of emotion recognition from speech with real-life data. Our main contribution to this work is related to the classifier sub-challenge, for which we tested ...

introduction: gully erosion is an important type of soil erosion in iran and ardebil province (moghimi and salami, 2011; khatibi, 2006). increasing the cross section of gullies is an indicator for gully developing (deng et al, 2015). topography and soil properties are two important factors in gully developing in various regions of worldwide (poesena et al, 2003). despite the importance of soil ...