• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 65
  • 16
  • 16
  • 4
  • 2
  • 1
  • 1
  • Tagged with
  • 97
  • 54
  • 54
  • 54
  • 54
  • 54
  • 54
  • 13
  • 13
  • 9
  • 8
  • 8
  • 8
  • 7
  • 7
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

A Study Of Argumentation In Turkish Within A Bayesian Reasoning Framework: Arguments From Ignorance

Karaaslan, Hatice 01 September 2012 (has links) (PDF)
In this dissertation, a normative prescriptive paradigm, namely a Bayesian theory of content-dependent argument strength, was employed in order to investigate argumentation, specifically the classic fallacy of the &ldquo / argument from ignorance&rdquo / or &ldquo / argumentum ad ignorantiam&rdquo / . The study was carried out in Turkish with Turkish participants. In the Bayesian framework, argument strength is determined by the interactions between three major factors: prior belief, polarity, and evidence reliability. In addition, topic effects are considered. Three experiments were conducted. The first experiment replicated Hahn et al.&rsquo / s (2005) study in Turkish to investigate whether similar results would be obtained in a different linguistic and cultural community. We found significant main effects of three of the manipulated factors in Oaksford and Hahn (2004) and Hahn et al. (2005): prior belief, reliability and topic. With respect to the Bayesian analysis, the overall fit between the data and the model was very good. The second experiment tested the hypothesis that argument acceptance would not vary across different intelligence levels. There was no significant main effect of prior belief, polarity, topic, and intelligence. We found a main effect of reliability only. However, further analyses on significant interactions showed that more intelligent subjects were less inclined to accept negative polarity items. Finally, the third experiment investigated the hypothesis that argument acceptance would vary depending on the presence of and the kind of evidentiality markers prevalent in Turkish, indicating the certainty with which events in the past have happened, marked with overt morpho-syntactic markers (&ndash / DI or &ndash / mIs). The experiment found a significant main effect of evidentiality as well as replicating the significant main effects of the two of the manipulated factors (prior belief and reliability) in Oaksford and Hahn (2004), Hahn et al. (2005) and in our first experiment. Furthermore, reliability and evidentiality interacted, indicating separate as well as combined effects of the two. With respect to the Bayesian analysis, the overall fit between the data and the model was lower than the one in the first experiment, but still acceptable. Overall, this study supported the normative Bayesian approach to studying argumentation in an interdisciplinary perspective, combining computation, psychology, linguistics, and philosophy.
52

One Historian Two Books: Beatriz Colomina

Karamanoglu, Sema 01 January 2013 (has links) (PDF)
This thesis aims to explore selected works of Beatriz Colomina, a revisionist architectural historian who has made influential studies on visuality, domesticity, media and gender, and their reflections in the architectural world. Colomina is a distinguished architectural historian since she places a new lens on a period when architecture ceased to be only for the elite and media has gradually penetrated into everyone&rsquo / s life in order to understand how architecture became accessible to the public through media and how this has affected the perception of modern architecture. This new lens entailed not only the inseparability of media and architecture but also how war and domesticity featured in this relationship. Against this background, this study attempts to investigate the innovative approach of Beatriz Colomina by comparing and contrasting her two prominent books: Privacy and Publicity: Modern Architecture as Mass Media (1994) and Domesticity at War (2007). The former introduces us to the relationship between architecture and media, whereas the latter exemplifies this relationship by focusing on the cold war period as a time where media became an integral part of the domestic environment. This study aims to extract Colomina&rsquo / s contribution to architectural history by first disentangling and analysing and then merging these two books under common themes. In doing so, it seeks to answer the following questions: What is the role of archives in Colomina&rsquo / s methodology in writing these two books? What is the relationship between the document and the historian that emerges from this methodology? What common themes can be extracted from these two books as an analytical framework in order to better understand and study Colomina&rsquo / s approach? What differentiates her as a historian from other historians of modern architecture, specifically from Siegfried Giedion and Kenneth Frampton? What messages does Colomina give her reader through the form as well as the content of her books? What is her contribution to architectural historiography?
53

Success Factors Of Software Development In A Distributed Setting: A Collective Case Study

Bulgurcu, Burcu 01 June 2006 (has links) (PDF)
This study represents an attempt to address and discuss some of the most significant questions in the research on virtual software development work today. The research is held as a collective case study, including three cases with distinctive characteristics in both the software projects investigated and the types of collaborations. The study aims to reveal the success factors in virtual work, especially on the issues of communication, coordination and collaboration, by presenting the unfavorable experiences and major issues encountered in each case, as well as the favorable ones and lessons learned at the end of the development processes. The collective research focuses on both the global and non-global contexts. As a result, it points out the distinctive and opposite findings of the cases, and proposes discussions of those findings according to the properties of the development settings.
54

Design Decisions On Automobile Driver Interface With Regard To Subjective Evaluations Of Users

Altas, Aylin 01 December 2006 (has links) (PDF)
This study analyzes the users&rsquo / expectations from automobile interface in terms of their subjective assessments and middle class automotive design. The factors that affect the users&rsquo / impressions in both physical and psychological manner are presented. The importance of subjective users&rsquo / expectations and the issue of usability, which is handled from the traditional definition through the pleasure in use context, are discussed. The correlations between the physical appearance and psychological and behavioral responses are examined since the aesthetic properties affect the consumer satisfaction in both physically and psychologically. Automobile interface is identified under the considerations of user expectations. Factors that affect the drivers&rsquo / perception of interior and the decision making process are mentioned regarding with physical and psychological expectations of users. The case study is performed to clarify design criteria of the dashboards that belong to middle class segment under the consideration of Turkish drivers&rsquo / subjective evaluations. The study provides the chance of understanding the consumers&rsquo / attitudes toward the instrument panel elements through their design properties. This study examines and proposes Turkish users&rsquo / preferences and tastes in terms of physical and psychological expectations in the field of automobile interior design. It also provides techniques and results about users&rsquo / subjective evaluations that could be taken into account while designing an automobile belongs to a specific car segment with visual and functional properties of dashboard.
55

On The Avalanche Properties Of Misty1, Kasumi And Kasumi-r

Akleylek, Sedat 01 February 2008 (has links) (PDF)
The Global System for Mobile (GSM) Communication is the most widely used cellular technology. The privacy has been protected using some version of stream ciphers until the 3rd Generation of GSM. KASUMI, a block cipher, has been chosen as a standard algorithm in order to be used in 3rd Generation. In this thesis, s-boxes of KASUMI, MISTY1 (former version of KASUMI) and RIJNDAEL (the Advanced Encryption Standard) are evaluated according to their linear approximation tables, XOR table distributions and satisfaction of the strict avalanche criterion (SAC). Then, the nonlinear part, FI function, of KASUMI and MISTY1 are investigated for SAC. A new FI function is defined by replacing both s-boxes of KASUMI by RIJNDAEL&rsquo / s s-box. Calling this new version KASUMI-R, it is found to have an FI function significantly better than others. Finally, the randomness characteristics of the overall KASUMI-R for different rounds are compared to those of MISTY1 and KASUMI, in terms of avalanche weight distribution (AWD) and some statistical tests. The overall performance of the three ciphers is found to be same, although there is a significant difference in their FI functions.
56

Metadata Extraction From Text In Soccer Domain

Gokturk, Ozkan Ziya 01 September 2008 (has links) (PDF)
Video databases and content based retrieval in these databases have become popular with the improvements in technology. Metadata extraction techniques are used for providing data to video content. One popular metadata extraction technique for mul- timedia is information extraction from text. For some domains, it is possible to &amp / #64257 / nd accompanying text with the video, such as soccer domain, movie domain and news domain. In this thesis, we present an approach of metadata extraction from match reports for soccer domain. The UEFA Cup and UEFA Champions League Match Reports are downloaded from the web site of UEFA by a web-crawler. These match reports are preprocessed by using regular expressions and then important events are extracted by using hand-written rules. In addition to hand-written rules, two di&amp / #64256 / erent machine learning techniques are applied on match corpus to learn event patterns and automatically extract match events. Extracted events are saved in an MPEG-7 &amp / #64257 / le. A user interface is implemented to query the events in the MPEG-7 match corpus and view the corresponding video segments.
57

Perception Values Of Local Users For Urban Identity Elements In Ankara Ataturk Boulevard

Abaci, Ezgi 01 March 2009 (has links) (PDF)
There are many components which define and complete the urban spaces. One of these components is urban equipment which responds to the needs of the dweller by serving different purposes and creates a link between urban life and public life style. Urban equipment not only enables the interaction between urban spaces and the users of these places, but also has an efficient role in defining the cities&rsquo / quality and &ldquo / identity&rdquo / . Ankara, as the capital city of the Turkish Republic, has had an important mission throughout its history. But although it is the first planned city of the Turkish Republic, Ankara has become a victim of modernization and rapid and unplanned urbanization. As a result of this situation Ankara started to lose its own values. The main purpose of this thesis is, to identify the roles of urban equipment as a visual image, based on the perception of environmental spaces and creating urban identity. The methodology in this thesis is firstly determining the urban equipment on Atat&uuml / rk Boulevard which lies between Ulus and Kugulu Park which is the center line of Ankara and then questioning their effects on the urban identity. For this reason a questionnaire is applied to the local users and then according to this questionnaire&rsquo / s results, urban equipment&rsquo / s values as an urban identity element are analyzed. As a result of this study, urban equipments on Atat&uuml / rk Boulevard and their positive and negative values are determined. Therefore, how they are perceived by the local users and their contribution to the spatial and urban identity is determined.
58

Plannig Methods For Guiding Urban Regeneration Processes In High-risk Areas

Eser, Nermin 01 April 2009 (has links) (PDF)
Cities in Turkey are great risk pools. Underqualified building stocks are the major components of such risk pools. For the mitigation of risks, &#039 / engineering approach offers retrofitting of individual buildings as an ultimate method. However, this proposition has economic and legal difficulties. Instead, it is essential to develop new policies to focus on areas of high earthquake risk as comprehensive urban regeneration activities. This new policy requires new tools to monitor urban regeneration processes. It is obligatory to make comprehensive plans for high risk areas and to take low income groups into consideration in mitigation action plans. Comprehensive regeneration in existing districts could provide means and standards of safety not necessarily maintained by the retrofitting of individual buildings. Potentials of regeneration processes are readily observed and practiced in Turkey as means of regulating urban regeneration processes, even if for purposes other than safety. Analysis of a set of regeneration projects selected from world experience indicates that current regeneration practice in Turkey is far from a comprehensive approach. Municipalities are fully empowered to designate regeneration areas and carry out redevelopment activities often providing increased dentsities on compensate for the costs. This has been reinstated in the new draft law. Rather than a separate law, general regulation of regeneration could be accommodated in the Development Law 3194. A special Law concerning regeneration could instead focus only on risk reduction issues in cities throughout Turkey. The identification of priorities for such regeneration processes could be made by the Ministry of Public Works and Settlement as the central authority, clarifying the scale and timing of each project. The implementation tools of urban regeneration and issues like authorization, responsibility, funding, and auditing could be determined in this special law. A new approach for urban regeneration is needed to describe organizational, participatory, financial framework.
59

Impact Of Passanger Comfort Level On Design Of Short-span Composite Steel I-girder High Speed Railroad Bridges

Senturk, Tolga 01 January 2010 (has links) (PDF)
In globalizing world, increase in demand for high speed rail travel requires comfortable ride over bridges while maintaining an economical design. These bridges either have composite steel I-girders, prestressed precast I or box girder superstructures. The span lengths can reach up to 40 meters. If frequency of wheel load pass at a point on bridge matches with one the critical frequencies of the structure, excessive vibration can developed both at the train and the bridge even if the structure is structurally safe. Excessive vibration can discomfort the passengers. Focus of this study is given to identify certain thresholds for the rigidity of span to minimize the passenger discomfort at short-span composite steel I-girder high speed railroad bridges. In this context, various span lengths with different girder configurations have been analyzed under various train design speeds and ballast stiffness. Eigenvalue analyses are performed to determine critical frequencies of bridges. Moving force models are used to determine structural vibrations as recommended by high speed railroad bridge design specifications. It is well-known that stiffer structures can have significantly less vibration amplitudes than lighter ones providing a comfortable ride for high speed train passes.
60

Evaluation Of State Owned Indigenous Coal Fired Power Plants Including Coal Reserves

Guler, Mehmet 01 February 2010 (has links) (PDF)
Fossil fuels has preserved their importance in gradually increasing production and consumption of both energy and electricity of the world. Asia, especially China and India, has arisen new actors of the sector. Energy and electricity consumption of Turkey has also increased in parallel with her economic development, but due to her limited resources, she has become more and more energy dependent in order to meet her growing demand. Although hard coal is only found around Zonguldak region, with its abundant and widely spread reserves, Turkey ranked world&rsquo / s third place in lignite production in 2008. Having low calorific value together with high ash and moisture content, most of lignites extracted is being consumed in thermic power plants located near those reserves. In the first two chapters of this study, energy in the world and Turkey will be considered seperately, then coal resources in Turkey will be analysed in the next coming chapter. Indirect and direct greenhouse emissions presented to the UNFCCC will be handled in the fifth chapter In the last chapter, first past and present performances of all indigenous coal fired power plants will be analysed, then after projecting their generation and fuel needs, they are evaluated considering with the reserves they are located. Finally, at the end of decomissioning of those power plants, remaining reserves will be re-evaluated and additional new units will be proposed accordingly.

Page generated in 0.024 seconds