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education
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Total 149 records
Content-based video coding for distance learning
, Article ISSPIT 2007 - 2007 IEEE International Symposium on Signal Processing and Information Technology, Cairo, 15 December 2007 through 18 December 2007 ; 2007 , Pages 1005-1010 ; 9781424418350 (ISBN) ; Lotfi, T ; Darabi, A. A ; Kasaei, S ; Sharif University of Technology
2007
Abstract
This paper presents a novel video encoding method for cooperative Educational Dissemination Systems. Taking into consideration the inherent characteristics of distance learning video streams, existing a few moving objects in the scene and objects having slow motions, we propose a novel content-based video encoding method which is very efficient on low bandwidth channels. In the encoding process, we apply a background subtraction algorithm for motion segmentation with a novel statistical background modeling. In each frame, the moving objects are extrapolated with rectangular bounding boxes which are the only data send over the low bandwidth channel. In the decoding process, we propose a new...
A proposed Multibeam Ka-Band Satellite for providing high-speed internet service for Iranian universities and educational institutions
, Article 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007, Penang, 14 May 2007 through 17 May 2007 ; February , 2007 , Pages 283-288 ; 1424410940 (ISBN); 9781424410941 (ISBN) ; Farzaneh, F ; Sharif University of Technology
2007
Abstract
A Multibeam Ka-band Satellite to offer High Speed Internet service to state and private universities and high schools based on 2007-2008 academic year statistical data is proposed. For this goal an optimum coverage on Iran has been created using MATLAB software. These data were transferred to 1:250000 digital map of Iran using ILWIS software. After reading the coordinates of cities located in each contour, which were more than 640 locations, we proceeded to calculate traffic specifications of each beam. After frequency planning for beams, the power and dimension of earth stations were designed. Finally the technical specifications of the proposed satellite to serve nationwide users are...
Taxonomy learning using compound similarity measure
, Article IEEE/WIC/ACM International Conference on Web Intelligence, WI 2007, Silicon Valley, CA, 2 November 2007 through 5 November 2007 ; January , 2007 , Pages 487-490 ; 0769530265 (ISBN); 9780769530260 (ISBN) ; Alijamaat, A ; Abolhassani, H ; Rahimi, A ; Hoseini, M ; Sharif University of Technology
2007
Abstract
Taxonomy learning is one of the major steps in ontology learning process. Manual construction of taxonomies is a time-consuming and cumbersome task. Recently many researchers have focused on automatic taxonomy learning, but still quality of generated taxonomies is not satisfactory. In this paper we have proposed a new compound similarity measure. This measure is based on both knowledge poor and knowledge rich approaches to find word similarity. We also used Machine Learning Technique (Neural Network model) for combination of several similarity methods. We have compared our method with simple syntactic similarity measure. Our measure considerably improves the precision and recall of automatic...
Effect of squeeze-film damping on the dynamic behavior of circular and rectangular microplates
, Article 2007 International Semiconductor Device Research Symposium, ISDRS, College Park, MD, 12 December 2007 through 14 December 2007 ; January , 2007 ; 1424418917 (ISBN); 9781424418916 (ISBN) ; Ahmadian, M. T ; Sadeghian, H ; Sharif University of Technology
2007
Taking multiple-choise quiz by SMS on mobile phones including analyzing property
, Article Journal of Computers (Finland) ; Volume 2, Issue 2 , 2007 , Pages 53-60 ; 1796203X (ISSN) ; Sharif University of Technology
Academy Publisher
2007
Abstract
Recently Mobile Learning (M-Learning) has attracted much attention. Due to advantages of SMS (Short Messaging Service) on mobile phones we present a safe and protected method for taking multiple-choice quizzes by using the SMS on mobile phones in this paper. In this method questions of quiz are sent to students along with their answers through some SMS messages. The students will receive their grades immediately after answering the questions and this grade is also sent to the instructor or professor along with the student's answers through an SMS Picture Message. Answers of questions and the student's grade are hidden in SMS picture message through stenography and then they are sent. The...
A new method for steganography in html files
, Article Int. Conf. on Industrial Electronics, Technology and Automation, IETA 2005, Int. Conf. on Telecommunications and Networking, TeNe 2005, and the Int. Conf. on Engineering Education, Instructional Technology, Assessment, and E-Learning, EIAE 2005 ; 2006 , Pages 247-251 ; 140205260X (ISBN); 9781402052606 (ISBN) ; Sharif University of Technology
Kluwer Academic Publishers
2006
Abstract
In line with the expansion of the Internet, the issue of information security has gained special importance. Many methods have been provided in order to establish hidden communications. In the meanwhile, steganography is one of a relatively new method. A method is introduced in this paper for exchanging information by steganography on HTML pages. The main idea in this method is to hide coded data in the ID attribute of the HTML document tags. Since numerous HTML pages are on the web, this method can be widely used. The suggested method is implemented by using the Java language. © 2006 Springer
Prioritisation of data partitioned MPEG-4 for streaming video in GPRS mobile networks
, Article First IEEE and IFIP International Conference in Central Asia on Internet, 2005, Bishkek, 26 September 2005 through 28 September 2005 ; Volume 2005 , 2005 ; 0780391799 (ISBN); 9780780391796 (ISBN) ; Kasaei, S ; Sharif University of Technology
2005
Abstract
With the advance of multimedia systems and wireless mobile communications, there has been a growing need to support multimedia services (such as mobile teleconferencing, mobile TV, telemedicine, and distance learning) using mobile multimedia technologies. Despite the research done in the field of mobile multimedia, delivery of real-time interactive video over noisy wireless channels is still a challenge for researchers. This paper presents a method for prioritising data partitioned MPEG-4 video in a way suitable for transmission over a mobile network. The effectiveness of the technique is demonstrated by examing its performance when the transport of the prioritized video streams can be...
RoboCupRescue system and arian: A flexible infrastructure for multi-agent research and education
, Article Proceedings: 15th IEEE International Conference on Tools with artificial Intelligence, Sacramento, CA, 3 November 2003 through 5 November 2003 ; 2003 , Pages 351-355 ; 10636730 (ISSN) ; Takahashi, T ; Habibi, J ; Koto, T ; IEEE Computer Society ; Sharif University of Technology
2003
Abstract
One of the main requisites for multi agent researchers is a multi-purpose infrastructure that enables them to create, test and evaluate protocols, methods and algorithms. RoboCupRescue simulation environment is a flexible and configurable environment that can fill this gap. With changes in its configuration files, it will gain different features, so different methods can be designed, implemented, and tested. This environment is actually suitable for most multi-agent research issues such as cooperation, coordination, agent communication languages, and agent micro level issues. Sensible roles and tasks in the system motivate more research and make this environment a suitable infrastructure for...
Signal and noise improvement of a distributed FET mixer
, Article 10th IEEE International Symposium on Electron Devices for Microwave and Optoelectronic Applications, EDMO 2002, 18 November 2002 through 19 November 2002 ; Volume 2002-January , 2002 , Pages 284-288 ; 0780375300 (ISBN) ; Abdipour, A ; Farzaneh, F ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2002
Abstract
A traveling wave distributed mixer is studied. It is shown that increasing the drain-source capacitances in a distributed FET mixer simultaneously improves its conversion gain and noise figure. Besides, it is shown that proper loading of input and output elements can improve the device performance. The simulation results are well matched with the measurements and also with the results of the existing certified simulators. © 2002 IEEE
Recommender Systems in Education
, M.Sc. Thesis Sharif University of Technology ; Moghadasi, Reza (Supervisor)
Abstract
With the increasing advancement of technology and available information, finding suitable content for users is one of the significant challenges. Recommender systems have emerged as an effective solution to confront these challenges. Reinforcement learning can be employed as an effective approach to designing and implementing recommender systems. However, there are various challenges and complexities in the context of reinforcement learning applied to recommendation systems. In this context, Online users are treated as the environment, and concepts like reward functions and environment dynamics are not clearly defined, complicating the reinforcement learning process. In this thesis, a...
Assessing the Situation and Explaining the Challenges of "Responsible Management Education": the Case of Iran
, Ph.D. Dissertation Sharif University of Technology ; Najmi, Manoochehr (Supervisor)
Abstract
In the past two decades, there have been significant advancements in responsible management education at the international level. These developments have led to new discourses and pathways in the field of management education and research. Responsible Management Education (RME) involves considering perspectives related to the responsibilities of enterprises, the social impacts of private sector activities on society, attention to the environment and sustainable development, and business ethics in the curriculum of business schools. Business schools worldwide have initiated numerous programs, studies, initiatives, lessons, and events to address social issues, responsible management, and...
A Comprehensive Review of Studies Conducted in Entrepreneurship Education in Order to Achieve a Codified Framework
, M.Sc. Thesis Sharif University of Technology ; Feyzbakhsh, Alireza (Supervisor)
Abstract
In the current situation and considering the economic conditions, entrepreneurship and self-employment are important factors of business growth. To prepare people in this field, there is a need for effective training that can motivate people. Identifying the effective methods and different dimensions of the entrepreneurship education framework that can lead to setting up a successful program for training people and facilitate the way to achieve the goal of education is one of the important goals of this research. By studying the literature from 2010 onwards, this research systematically examined 96 articles and tried to improve the framework of entrepreneurship education that was stated in...
The Role of Personal Values in the Relationship Between the Education Level of Self-Employed People, and Their Entrepreneurial Income
, M.Sc. Thesis Sharif University of Technology ; Tasavori, Misagh (Supervisor)
Abstract
In order to develop entrepreneurial strategies, having knowledge of the components that can affect and determine entrepreneurial income is critical. Using European social survey data, this paper examines the impact of education level of self-employed people on their entrepreneurial income in both direct and indirect way. In the indirect way, regarding to Schwartz' model, personal values play the role as a mediator in the relationship between education level and entrepreneurial income. The results show that conservation values, including security, conformity and tradition significantly and negatively affect entrepreneurial income. Meanwhile self-transcendence values, including benevolence and...
Design and Fabrication of a Social Robot, to Teach Water and Energy Consumption Scheme to Children
, M.Sc. Thesis Sharif University of Technology ; Meghdari, Ali (Supervisor) ; Alemi, Minoo (Supervisor)
Abstract
Nowadays children’s toys and educational stuff, have been enhanced by technology and they have found capabilities like intelligence. It is obvious that after the period of using smart devices such as phones and tablets, robots and smart robotic tools will be popular. On the other hand, children are willing to use such smart devices. Social robots are smart ones that interact with humans and are not necessarily humanoid. One of the social robots applications is for educational purposes. Many studies have shown that teaching by means of robots has good effects on learning. For example robots have been used for educating autistic children. Moreover, robots have been used for rehabilitation and...
Investigating the Process of Launching and Expanding the Virtual Platform of Public Education in Iran In Response to Educational Crisis Caused by the Outbreak of Covid-19 Virus Based on the Kingdon's Multiple Streams Theory
, M.Sc. Thesis Sharif University of Technology ; Maleki, Ali (Supervisor)
Abstract
The research is performed to study the process of policy making and policy implementation of initiating student education network (Shaad) as as the first official platform of virtual education in Iran. We want to compare this process with “Kingdon’s multiple stream model”; because shaad initiated shortly after the closure of school’s caused by the outbreak of Covid-19 virus, while in recent years there have been several failed attempts to launch formal e-learning plans. Data were gathered trough semi-structured interviews of experts with shaad founders (11 people), reviewing some of the related documents and news, and unstructured observation by researcher. The findings were coded using...
Massive Online Open Courses and Higher Education Policy in Iran
, M.Sc. Thesis Sharif University of Technology ; Miremadi, Iman (Supervisor) ; Honarvar, Ruhollah (Co-Supervisor)
Abstract
The digital age and its interlace with the pandemic has led to rapid changes in various institutions, including higher education. One of the factors that changes higher education is the expansion of E-learning and Massive Online Open Courses (MOOCs). Although about 15 years have passed since its creation, the pandemic has expanded the E-learning infrastructure and given it more attention, so that now everyone Confesses the possibility of distance education. On the other hand, although the development of MOOCs platforms and their considerable acceptance has attracted the attention of higher education professors and future researchers in this field, it is not properly considered by the...
The Hidden Impact of Iran-Iraq War during Fetal Stage on Educational Attainment
, M.Sc. Thesis Sharif University of Technology ; Vesal, Mohammad (Supervisor)
Abstract
The Iran-Iraq war between 1980 to 1988 involved Iran's western borders and inflicted heavy casualties. This war was also spread to the central provinces of Iran in several periods as a result of Iraqi missile attacks, known as the War of Cities. The attacks were mainly intended to intimidate people, leaving relatively few deaths and injuries. In this study, we seek to estimate part of the hidden and long run impacts of these attacks. Using a two-percent sample of Iran’s 1990 census and the information of the location and timing of missile attacks, and by incorporating the difference in difference method, we estimate the causal impact of missile attacks on the years of education of those who...
Automatic Difficulty Estimation of Thematic Similarity MultipleChoice Questions
, M.Sc. Thesis Sharif University of Technology ; Sameti, Hossein (Supervisor) ; Bokaei, Mohammad Hadi (Supervisor)
Abstract
This project has been conducted in two related phases: In the first phase, we have attempted to write a program capable of answering thematic similarity multiple-choice questions without utilizing any training data. The best performance in this phase was attained by the 25-topic LDA model using the Hellinger distance between the probability distributions of the poetic verses. This model managed to attain an accuracy of 42%, which is very close to the average human performance of 43%. In the second phase, two tasks of seven-class classification and binary classification were defined based on the p-value of the questions. To this end, the questions were initially ranked according to the...
Model-Driven Methodology for Developing Serious Games in the Context of Software Engineering Education
, M.Sc. Thesis Sharif University of Technology ; Ramsin, Raman (Supervisor)
Abstract
As software technology has advanced, many related industries, such as game development, have also evolved. Games are not solely used for enjoyment anymore, and their application has expanded to various domains, the most important of which is education. Serious games connect education and enjoyment by achieving pedagogical objectives through gaming. Experience has shown that using this approach for education can be more effective than traditional methods. Serious games have been applied to various areas of education, one of which is software engineering. Software engineering covers a wide span of knowledge, and a range of methods are required for the education to be effective, especially...
Overeducation and It’s Effect on the Gender Pay Gap
, M.Sc. Thesis Sharif University of Technology ; Keshavarz Haddad, Gholamreza (Supervisor) ; Fatemi Ardestani, Farshad (Supervisor)
Abstract
In this study, we estimate the effect of overeducation on the gender pay gap in the private and public sectors, using Household Expenditure and Income Data of 1396. For this purpose, the realized matching method is used to calculate the overeducation and the Oaxaca and Blinder decomposition model to calculate wage gap. The results show that being female in both the private and public sectors has a negative effect on wages, but this effect is much stronger in the private sector. We also find that the gender wage gap among overeducated is lower than propereducated. The gender pay gap and its unexplained componentin among overeducated worker in both sectors is less than propereducated worker....