Drawing on Walsh's (2012) idea that boosting learners' contribution and interaction can play a key role in their foreign language learning, this mixed-methods study tried to cast some light on the ways by which teachers, via their choice and use of language, create or block learners' contribution in direct interactions in the classroom. A total of 800-minute recordings of 10 teachers' talks and...

Automatic facial expression analysis is an interesting and challenging problem, and impacts important applications in many areas such as human–computer interaction and data-driven animation. Deriving an effective facial representation from original face images is a vital step for successful facial expression recognition. In this paper, we empirically evaluate facial representation based on stat...

Natural systems harbor complex interactions that are fundamental parts of ecology and evolution. These interactions challenge our inclinations and training to seek the simplest explanations of patterns in nature. Not least is the likelihood that some complex processes might be missed when their patterns look similar to predictions for simpler mechanisms. Along these lines, theory and empirical ...

The customary perspective to reason about epidemic mitigation in temporal networks hinges on the identification of nodes with specific features or network roles. The ensuing individual-based control strategies, however, are difficult to carry out in practice and ignore important correlations between topological and temporal patterns. Here we adopt a mesoscopic perspective and present a principl...

Nowadays, the number of flexible and fast human to application system interactions is dramatically increasing. For instance, citizens interact with the help of the internet to organize surveys or meetings (in real-time) spontaneously. These interactions are supported by technologies and application systems such as free wireless networks, web -or mobile apps. Smart Cities aim at enabling their c...

The concept of electronic decoys (honeypots), which are network resources that are deployed to be probed, attacked, and eventually compromised, is used in the area of IT security to learn more about attack patterns and attackers’ behavior in real-world networks. Our research focuses on gathering detailed statistics on the threats over a long period of time in order to get a better understanding...

In this paper, two block-based texture methods are proposed for content-based image retrieval (CBIR). The approaches use the Local Binary Pattern (LBP) texture feature as the source of image description. The first method divides the query and database images into equally sized blocks from which LBP histograms are extracted. Then the block histograms are compared using a relative L1 dissimilarit...

one of the great events in the history of iran is the emergence and spread of islam within the early hegira centuries.  the result of the interaction between islam and iran was transformations in many cultural dimensions and indices. this research states the problem of the islamization of iranian lifestyle andthe culture of purity and impurity, in particular.in this article,interpretive-analyti...