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Helpful vote is a common feature on many websites that utilizes the "wisdom of the crowd" to vote on whether a piece of information posted on the website (e.g., A product review) is helpful. Recent studies show that under certain conditions, aggregated judgment may lead to inaccurate information. Motivated by these studies, we argue that the aggregated helpful votes may not reflect the underlying...
This paper presents an analysis of magnetic field homogeneity of square and circular Helmholtz coils pairs. The analysis is based on the Bio-Savart law for which it performs a Taylor series approximation for the magnetic field at a point on the axis of symmetry, finding an approximate expression of the homogeneity with respect to the parameter radius / length. Finally, a computational model is performed...
In this paper, we report some results from the first internet content-based investigation of the underlying causes of humor. For this purpose, we developed a methodology for extracting semantic distance from tags associated with YouTube videos manually identified as humorous or not by their existing community of users. We found that a novel quantification of episodic incongruity, operationalized via...
Primary immune responses are initiated when foreign pathogenic microorganisms move past the front-line defense system of the body. The primary immune responses consist of a) the production of antibody molecules that are specific for the pathogenic microorganism and b) the expansion and differentiation of special-purpose defensive cells, the lymphocytes. In this scenario, our work aims to develop and...
The knowledge of the spatiotemporal sensitivity of the human eye can be essential for those practical applications where the communication of an informatical system and a human subject can be crucial (topics: cognitive informatics, cognitive infocommunication), such as intelligent video-coding, driving assistant systems or intelligent instrumental boards. In this paper we will present the spatiotemporal...
The normal pressure between the tube and the die in the guiding zone has a great effect on the friction force. Therefore, it is an important consideration in the design of tube hydroforming process. In the present study, a mathematical model for calculating the normal pressure between the tube and the die in the guiding zone is proposed. It is shown that the normal pressure is determined by the Poisson's...
Least Squares Support Vector Machine (LS-SVM) is a classic algorithm for regression estimation and classification. But unfortunately, for really large problems, LS-SVM can become highly memory and time consuming. In this paper, we present a simplified algorithm for LS-SVM, called ILS-SVM, which effectively reduces the algorithmic complexity. In order to improve the rate of convergence and overcome...
Tinnitus is defined as "unwanted auditory perception of internal origin, usually localized, and rarely heard by others. Tinnitus is a sensibly experienced ringing sensation in the auditory system, which occurs without the presence of an actual auditory stimulation". Nowadays many researchers focused on finding a method for treatment of tinnitus. Although they report many different treatments,...
Systems biology is an emerging multi-disciplinary area, which aims to understand the underneath regulatory mechanisms of the biomolecular interaction networks inside the cell through dynamical system approaches. The first challenge in systems biology is how to obtain an accurate and predictable computational model for the biomolecular networks under study. However, due to limited experimental data,...
The active contour or Snake is a computational model that can trace boundaries of images. It is formulated based on controlled continuous splines and adopts energy minimization conception. This paper presents the application of Snakes for the segmentation of masses on breast ultrasound images. The boundaries of the masses identified may be used in locating potential cancerous cases for further analysis...
Superconducting magnets operate at low temperatures, and therefore, even small heat pulses can ruin their stable operation. For example, resistive joints or changes in the operation current generate heat which must be extracted to prevent a quench. In impregnated magnets, the transverse thermal conductivity inside the coil has a vital influence on the heat extraction, and it dominates the 3D quench...
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