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    A dynamic view of technological regime concept: Toward a framework for industrial policies in developing countries

    , Article 2008 Portland International Center for Management of Engineering and Technology, Technology Management for a Sustainable Economy, PICMET '08, Cape Town, 27 July 2008 through 31 July 2008 ; 2008 , Pages 395-401 ; 9781890843175 (ISBN) Rezazadeh Mehrizi, M. H ; Mozafari, A ; Sharif University of Technology
    It is beyond dispute that technological change acts as a driver of economic growth. In developing countries where highly suffer from lack of this process, incremental innovation is considered as main source of technology capability building and development In moving toward this pass and to meet with time pressure of catching up, developing countries acquire the initial required knowledge base through technology absorption from outside sources; On the other hand as development is a lengthy process, it is important that the absorbed knowledge still has the potential of more advancement in future. Therefore a selection instrument with ability of assessing different knowledge base or... 

    Addressing the epistemic uncertainty in seismic hazard analysis as a basis for seismic design by emphasizing the knowledge aspects and utilizing imprecise probabilities

    , Article Bulletin of Earthquake Engineering ; 2021 ; 1570761X (ISSN) Ghods, B ; Rahimzadeh Rofooei, F ; Sharif University of Technology
    Springer Science and Business Media B.V  2021
    Epistemic uncertainty in seismic hazard analysis is traditionally addressed by utilizing a logic-tree structure with subjective probabilities for branches. However, many studies have argued that probability is not a suitable choice for addressing epistemic uncertainties; in particular in addressing the background knowledge supporting the probabilities. In this regard, the application of imprecise probability (IP) is investigated. It is discussed that IP could provide a flexible tool for a more objective presentation of experts' knowledge. Moreover, the importance of addressing the strength of knowledge and surprises relative to knowledge in seismic hazard analysis along with methods to do... 

    Smooth projective hash function from codes and its applications

    , Article IEEE Transactions on Services Computing ; 2021 ; 19391374 (ISSN) Koochakshooshtari, M ; Aref, M. R ; Sharif University of Technology
    Institute of Electrical and Electronics Engineers Inc  2021
    Nowadays, Smooth Projective Hash Functions (SPHFs) play an important role in constructing cryptographic tools such as secure Password-based Authenticated Key Exchange (PAKE) protocol in the standard model, oblivious transfer, and zero-knowledge proofs. Specifically, in this paper, we focus on constructing PAKE protocol; that is, a kind of key exchange protocol which needs only a low entropy password to produce a cryptographically strong shared session key. In spite of relatively good progress of SPHFs in applications, it seems there has been little effort to build them upon quantum-resistant assumptions such as lattice-based cryptography and code-based cryptography to make them secure... 

    Assessment of Iran academic environmental education needs with climate change approach

    , Article International Journal of Environmental Science and Technology ; Volume 18, Issue 1 , 2021 , Pages 49-56 ; 17351472 (ISSN) Ahmadi, A ; Abbaspour, M ; Afkhami Namin, N ; Sharif University of Technology
    Springer Science and Business Media Deutschland GmbH  2021
    The main goal of environmental education program developers is to train resourceful experts to work, study and solve environmental issues. Thus, it is essential to conform educational knowledge and skills according to countries needs along with scientific and technological progress. The present study aimed to assess needs of educational programs by considering climate change issues in Iranian Universities. Therefore, needs of higher education sector have been identified and some recommendations were given in line with objectives of training programs. The study applied random selection method to determine a number of environmental professionals to answer the designed questioner. Delphi method... 

    Case Study of Absorption Capacity Growth Mechnisms in Farab and Bootan

    , M.Sc. Thesis Sharif University of Technology Izadi, Fereydoon (Author) ; Mashayekhi, Ali Naghi (Supervisor)
    In this study; technology transfer to the Farab and Butan fromabsorptive capacity perspective is under inquiry. First we have complete literature review until we can provide good understanding toward absorptive capacity concept in organizational level. George and Zahra model has been chosen as a base model. Farab and Butan have chosen because of their recent successes in knowledge transfer. Based on George and Zahra model we develop a semi-structured questionnair and run it in Farab and Butan. We have findings in how organization can transfer knowledge to their networks to increase their AC, also we have findings in different ways organizations transfer different kinds of knowledge  

    The Knowledge Argument

    , M.Sc. Thesis Sharif University of Technology Ghorbani, Jafar (Author) ; Sheykh Rezaee, Hossein (Supervisor)
    Frank Jackson’s knowledge argument is presented to show the falsity of physicalism. The argument is based on a famous thought experiment according which, Mary, a genius scientist who has spent her whole life investigating the neurophysiology of vision in a black-and-white environment, in spite of acquiring complete physical knowledge in that field, knows nothing about the phenomenological properties of seeing red. The knowledge argument has three main steps: proofing the existence of an epistemic gap, inferring an ontological gap from the epistemic gap and inferring the falsity of physicalism from the ontological gap. Different criticisms are made of each step. One of the criticisms of the... 

    Towards a Method to Architectural Decision Making in Collaborative Environments

    , M.Sc. Thesis Sharif University of Technology Samghani Nejad, Marzieh (Author) ; Habibi, Jafar (Supervisor)
    Considering the aggregation of software architecture design decisions, the decision on appropriate from, is important to the success of a software project. Hence, the software architects need reliable and accurate process for correct decision making which seeks to reduce risk and increase productivity. Furthermore, different stakeholders involved in the architectural design process and presence of cooperation between them for architecture decision making indicates the nature of collaborative activities related to architectural design. Effective collaboration among those involved in the design process not only will affect on the quality and accuracy of the architecture, but also accelerates... 

    Role of Spirit in the Formation of Knowledge in Terms of Transcendent Wisdom

    , M.Sc. Thesis Sharif University of Technology Mohseni, Hossein (Author) ; Hosseini, Hassan (Supervisor)
    One of issues of human in this time is questions about epistemology. Human sometimes faced with this qustion that "Is it any knowledge for human being". Sometime he or she answers this question: yes and search for any knowledge around him or her. In the context of philosophy of science these question are very imortant. In philosophy of science one of major question is how many of factors in science is subjective and how many is objective? It is obvious that one of solution to answer this question is investigation of factors that construct the knowledege. Furthermore in this thesis I try to answer that question in context of Hikmat' Motealieh. In this context all of factors that involved in... 

    Intercultural Competence: An Investigation into Iranian EFL Learners’ Knowledge, Strategies, and Attitudes

    , M.Sc. Thesis Sharif University of Technology Roodi, Farhad (Author) ; Tajeddin, Ziadden (Supervisor) ; Alemi, Minoo ($item.subfieldsMap.e)
    Understanding others has long been a goal of language teaching yet remaining in the background of educational practices (Liddicoat, 2012). However, the recognition of importance of intercultural competence and its integration into language teaching and learning has grown due to globalization, increased mobility, and technological development. The existing challenge in the language-teaching domain is the integration of culture and language. The benefits and significance of developing interculturally competent learners are not covert to anybody; however, the important consideration of teaching culture is the necessity of amalgamating language and culture in an interculturally oriented language... 

    Assessing and Comparing Risk indices in BOT and DBB Delivery Methods in Freeway and Highway Construction Projects

    , M.Sc. Thesis Sharif University of Technology Shahbazi, Reza (Author) ; Khaloo, Alireza (Supervisor)
    The present survey study aims at investigating and comparing risk indices in highway and freeway projects implemented through Build-Operate-Transfer (BOT) and Design-Bid-Build (DBB) delivery methods. In this regard, two distinct questionnaires were developed (one for BOT and one for DBB delivery method) and interviews were conducted, too. The questionnaires were, then, sent to the target population, i.e. all the experts and agents involved in highway and freeway construction projects implemented through either BOT or DBB method. The collected data were then submitted to Statistical Package for Social Sciences (SPSS), version 22.00, to be analyzed. The results showed that risks had generally... 

    A System Dynamics Model to Find Optimal Policies for competition and Development of Online Question and Answer Knowledge Markets

    , M.Sc. Thesis Sharif University of Technology Amani, Elnaz (Author) ; Kianfar, Farhad (Supervisor)
    Knowledge markets where knowledge transactions take place are today see increasingly expansion by influences of the Internet and the importance of knowledge. A competitive space, thus, has been placed among different enterprises step in knowledge markets. With no exception to this general rule, one of these markets covers online question – answer knowledge market. Google Answers is a proposed website in this area which, although being of interest in recent decades, its activities ended in 2006 for several reasons. Significantly, these markets consist of many factors with interrelated effects on each other and this leads to complexity of systems. Therefore, in order to study these markets, it... 

    Considering Lessons Learned and Ascertaining Their Roadmap in Project Management (Case Study: Sepanir Company)

    , M.Sc. Thesis Sharif University of Technology Aftabi, Meysam (Author) ; Sepehri, Mehran (Supervisor)
    Evolutions in the economy, society and politics has raised knowledge as a key element in the development and competitiveness and knowledge management is considered one of the essential elements in this field. By taking temporary nature of the project into account, dynamics and competition in the project-oriented organizations business world makes the preservation and management of knowledge in project-based organizations more important. Lesson learned system is one of the knowledge management tools that can propose strategic solutions which avoid wasting of time and money and make perfect use of knowledge management accomplishments.In this study, by using literature review, interview and... 

    ERP Architecture based on Knowledge Model With IDEF0

    , M.Sc. Thesis Sharif University of Technology Daneshi, Zahra (Author) ; Mostafavi, Mostafa (Supervisor) ; Tavakoli Bina, Alireza (Supervisor)
    The complexity of corporate information technology (IT) environments has been growing steadily, and keeping pace with an ever changing business environment has become a constant challenge. Information technology/systems play a major role in improving the competitiveness of organizations. There are numerous enterprise information software packages available on the market. One of them is enterpriser esource planning (ERP). ERP can provide significant improvements in efficiency across a com pany, but only when implemented correctly.In this study we defined ERP system that is called Technosoft ERP system. This system includes six model which ... 

    Class Attention Map Distillation In Semantic Segmentation

    , M.Sc. Thesis Sharif University of Technology Karimi Bavandpour, Nader (Author) ; Kasaei, Shohreh (Supervisor)
    Semantic segmentation is the tash of labeling each pixel of an input image. It is one of the main problems in computer vision and plays an important role in scene understanding. State of the art methods of solving it are based on Convolutional Neural Networhs (CNNs). While many real world tasks like autodriving cars and robot navigation require fast and lightweight models, CNNs inherently tend to give beter accuracy when they are deeper and bigger, and this has raised interest in designing compact networks. Knowledge distillation is one of the popular methods of training compact networhs and helps to transfer a big and powerful network’s knowledge to a small and compact one. In this research... 

    The Effects of Customer Knowledge Management on Organizational Growth: Mediating Role of Organizational Innovation

    , M.Sc. Thesis Sharif University of Technology Zamani, Pouran (Author) ; Karami, Naser (Supervisor)
    In today’s world startups are receiving attention as they play a key role in economic growth and employment in different countries. On the other hand, globalization, rapid change and fierce competition have made the economy more knowledge-based, and this issue has become so special for startups that the main asset of startups can be considered their knowledge capital, including customer knowledge. Considering the role of knowledge in innovation and innovation in the growth and survival of a startup, customer knowledge can be considered an important source for innovation in the startups and also a vital factor for their survival. The purpose of this study is to study the effect of customer... 

    Investigating the Role of Knowledge Management Processes in Reducing Waste

    , M.Sc. Thesis Sharif University of Technology Maleki, Hoomaan (Author) ; Houshmand, Mahmoud (Supervisor)
    This research investigates the role and effects of knowledge management processes in reducing both cost and waste at the Dorsa Leather Goods Company. This methodology is based on both qualitative and quantitative research methods. The qualitative stage consists of analysis of past research and interviews with all levels of management. This stage leads to identifying knowledge management factors, effective in reducing cost and waste. Subsequently, we identified five main aspects encompassing all the effective aforementioned factors. These aspects are strategic, organizational structure, human resource, organizational culture, and technological infrastructure.The quantitative stage is... 

    Analytical and learning-based spectrum sensing time optimisation in cognitive radio systems

    , Article IET Communications ; Volume 7, Issue 5 , 2013 , Pages 480-489 ; 17518628 (ISSN) Shokri Ghadikolaei, H ; Abdi, Y ; Nasiri Kenari, M ; Sharif University of Technology
    In this study, the average throughput maximisation of a secondary user (SU) by optimising its spectrum sensing time is formulated, assuming that a priori knowledge of the presence and absence probabilities of the primary users (PUs) is available. The energy consumed to find a transmission opportunity is evaluated, and a discussion on the impacts of the number of PUs on SU throughput and consumed energy are presented. To avoid the challenges associated with the analytical method, as a second solution, a systematic adaptive neural network-based sensing time optimisation approach is also proposed. The proposed scheme is able to find the optimum value of the channel sensing time without any... 

    A novel pre-processing method to reduce noise effects in a prototype-based clustering algorithm

    , Article 2008 International Conference on Information and Knowledge Engineering, IKE 2008, Las Vegas, NV, 14 July 2008 through 17 July 2008 ; July , 2008 , Pages 587-593 ; 1601320752 (ISBN); 9781601320759 (ISBN) Taghikhaki, Z ; Minaei, B ; Masoum, A ; Sharif University of Technology
    In this paper we introduce a preprocessing method to reduce noise effects in noise prone environments. Prototype based clustering algorithms are sensitive to noise because the effect of noisy data are as same as effect of true data and this affects on calculation of clusters center and then reduces accuracy. Therefore, these algorithms can not be applied in noise-prone environments and if this is applied there, we can not trust to the results. To overcome such problems we reduce and in some cases eliminate the noisy data. Also a part of our method is applied on the source of generated data in a network. Then noisy data that the number of them is high in noisy environments are eliminated and... 

    AI planning search time and space reduction technique for the problem of web service composition

    , Article 2008 AAAI Workshop, Chicago, IL, 13 July 2008 through 14 July 2008 ; Volume WS-08-10 , 2008 , Pages 173-174 Rahmani, H ; Sharif University of Technology
    One of challenging problems in the domain of web services is the web service composition (i.e the task of composing web services to create new services, capable of fulfilling a need that no single service can satisfy). In real application, there will be a lot of relevant web services for a simple goal, so the search space for such a problem is huge. In this research statement, we show how by extracting some prior knowledge and using simple heuristics, search space and search time can be reduced significantly  

    An interactive tool for extracting human knowledge in speech recognition

    , Article WSEAS Transactions on Computers ; Volume 4, Issue 2 , 2005 , Pages 276-279 ; 11092750 (ISSN) Ghiathi, S. K. A ; Bagheri Shouraki, S ; Sharif University of Technology
    Conventional features for speech recognition have not been evaluated in terms of importance in human speech recognition. In this paper a method for extracting important features in an interactive process has been introduced. This method can be used as an aid for experts in an ASR expert system. It has also been shown, as an application of our method, how an expert might find out the distinguishing features between "m" and "n". As another use, it has been illustrated that how our method could be used to check the sufficiency of information in the quantized filter-bank for speech recognition