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The paper analyses the analytical models of fatigue and their applicability for using natural user interfaces (NUI). For evaluation of eye fatigue we use a gaze speller as an example of NUI system for text input with human gaze and eye tracking device. We use the system to evaluate the state and performance of the users in performing the text entry task as well as to analyse dynamical changes of the...
An important and widespread topic in cloud computing is text analyzing. People often use topic model which is a popular and effective technology to deal with related tasks. Among all the topic models, sLDA is acknowledged as a popular supervised topic model, which adds a response variable or category label with each document, so that the model can uncover the latent structure of a text dataset as...
In this paper, we present a hierarchical butterfly communication model, which is applied to an asynchronous distributed ADMM algorithm. The goal is to minimize the communication overhead of the distributed ADMM algorithm in the fully connected network. We give a theoretical analysis of the convergence of the algorithm with hierarchical butterfly communication model. Experiments show that hierarchical...
Social Networks are evolving rapidly to have a significant number of users using or joining their platforms daily, and a huge volume of information exchange and flow continuously. As human is the center of all information traffic, the information propagation became subjected to the relations and influences between the sources of these information and their followers or fans, these influences might...
The method of computer simulation of microwave devices and special laboratory workshops is described. Simulated laboratory has a module structure. The basis for constructing a model of the specific workshop is a concept of the abstract “device” with layout is identical to the installation of a real one. The software interface allows changing the configuration and frequency tags to carry out all necessary...
The purpose of the study is to analyze the accounting equation and develop a new model, based on the dual concept of monetary units and the structure of assets and claims on assets. The analysis uses the identity and characteristic functions along with a coordinate transformation, to show that the assets-claims on assets relationship involves a change in claims on assets value. The identity function...
It is well known that not all intrusions can be prevented and additional lines of defense are needed to deal with intruders. However, most current approaches use honeynets relying on the assumption that simply attracting intruders into honeypots would thwart the attack. In this paper, we propose a different and more realistic approach, which aims at delaying intrusions, so as to control the probability...
This paper presents a formal method to verify execution time bounds of programs at the source level, where timing constraints along with other functional requirements are specified in the routines' contracts and are verified in a modular manner. The approach works based on a countdown time budget mechanism to guarantee the termination of the input program, and incorporates the concepts of separation...
Regulating agencies mandate that model verification of power system components must be performed to make sure the system analysis software perform accurately. Such verification is necessary for series compensation devices used in transmission systems, since they deteriorate due to aging or prolonged subjection to stressed condition, leading to changes in compensation levels or voltage-current characteristic...
The concept of d-Separation is a key tool to analyze stochastic models defined by probability distributions of random variables that admit a factorization described by a Directed Acyclic Graph. However, in the area of dynamical systems, and especially control theory, it is common to find network models involving stochastic processes that influence each other according to a directed network where feedback...
In order to mine the abnormal learning behavior of learner in virtual learning community and carry on personalized supervision and guidance, behavior filtering model based on the factor analysis of the behavior is constructed to solve the problem of the relationship between behavior factors in the learning behavior vector space model. In view of the disadvantage of neglecting local abnormal points...
The packet rejection at destination under asynchronous transmission in high-speed optical fiber networks is examined in this study. Especially, we propose an asynchronous transmission protocol and a station network interface suitable for local area networks of passive star topology aiming to reduce the rejection probability at destination due to the receiver collisions. We assume that each station...
Recent years people have witnessed a surge of interest in APT attack, due to its complex and persistent attack characteristics. In order to prevent APT attacks, this article studies and analyzes a large number of APT attack cases which have been disclosed, gives an overview of APT attack lifecycle and attack techniques. This paper discusses the purposes of APT attacks and APT attack characteristics...
In this paper, the describing function method is used to analyze the behavior of the two methods, the conventional and the super twisting sliding mode control regarding chattering phenomena. The cases are demonstrated where the first order sliding mode control is more efficient then second order one. This cases are shown based on analysis and simulation.
Collaborative and inquiry learning in the Virtual Learning Community is a new kind of online learning. The learners construct their own knowledge by interactive learning in the community. Some log records and related learners' learning behavior information is generated in the experimental platform of the virtual learning community. Statistical tools of SPSS and Excel are used to explore the learning...
Accessibility is an important aspect of websites generally and public websites particularly. Many ways could be proposed to enhance accessibility, however the impact of selected actions is hard to predict due to diversification and contradiction, in addition to the existence of the time factor. A System Dynamics simulation model including factors affecting the accessibility of Norwegian municipal...
In recent years, the web has become one of the main carrier of social public opinion, so the network public opinion needed a new natural language processing technology to identify the information efficiently and accurately, analysis and classify the public opinions effectively. In this paper, the text semantic orientation analysis method is proposed based on Hidden Markov Model to improve the accuracy...
This article takes advantage of the data collected from the first National New SAT Mock Test Competition organized by China SAT Academic Alliance. Thousands of essays were collected and then rated manually. The results were compared to those from classic algorithm and weights in computerized English text rating. Through quantifiable index analysis, statistical language model analysis, automatic keywords...
Multilevel inverters acts as a promising solution for medium voltage, high power applications due to their modularity and reduced voltage stress across the switches. Cascaded H Bridge Multilevel Inverters (CHB-MLI) are being considered as the best choice for grid connected Photovoltaic (PV) systems since they require several sources on the DC side. By means of MLI's, high quality output with less...
Interior design is the refinement and extension in space for the architectural design, which is a cross-disciplinary that is an aspect of the collection of space, style, color, lighting, material. Due to the development of the virtual reality technology and programming software, making indoor designer has conditions to create a more realistic and humanized interactive virtual display platform, which...
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