Bilgisayar Mühendisliği Bölümü Tezleri

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    Citation Count: MOĞOL, A.C. (2011). 3D hand reconstruction with binocular view. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    3D hand reconstruction with binocular view
    (2011-12-01) Mogol, Ali Can; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    In the field of Human Computer Interaction (HCI) one of the important goals is designing better interfaces for improving interactions between human beings and computers. There are lots of approaches to address this problem. One of these approaches is interfacing using human hand gestures. The capturing and modeling of the gestures and articulations of the human hand is a challenging problem. There exist hardware and software solutions proposed to solve this problem. In this thesis, an inexpensive fast and effective method to stereo capture and create 3D hand model is proposed. The setup used for this thesis is; five different color markers and commodity hardware consists of two web cameras and a low cost laptop computer. In this thesis, starting with the stereo calibration of the cameras, capturing and tracking the color markers attached to the finger tips, leading 2D points of the finger tips, converting the 2D points to 3D points and calculating the finger articulations according to these 3D points and modeling the 3D hand have been accomplished, so the user can see his/her own hand’s articulation on the screen as a 3D hand model.
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    Citation Count: TAŞEL, F.S. (2008). 3D reconstruction of a scene using stereo images. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    3D reconstruction of a scene using stereo images
    (2008-06-20) Taşel, Faris Serdar; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Two-dimensional photographs do not have depth-information. One solution to determine the location of an object in three-dimensional environment is to use more than one photograph as exposed by the nature. Extracting the depth information using stereo images is purposed in this thesis. The thesis analyzes the steps and encountered problems in three-dimensional reconstruction process, explains the solutions exposed with the aid of epipolar geometry using some of the feature-based matching techniques. Stereo images which are taken from two calibrated cameras viewing the same scene are used to obtain estimated three-dimensional data. Pinhole camera model, epipolar geometry and its recovery are discussed; common stereo triangulation methods are explained in the chapters of the thesis. Besides, feature extraction and matching topics which are used for the reconstruction process are examined. Some of the methods used in the thesis are presented by algorithmic solutions and mathematical notations. Significant advantages and disadvantages of the methods are briefly discussed and encountered problems are tried to be challenged by fundamental approaches.
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    Citation Count: GÜVENÇ, S.P. (2008). 3D visualization using data received from the processes of object recognition and object reconstruction. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    3D visualization using data received from the processes of object recognition and object reconstruction
    (2008-06-20) Güvenç, Seher Pelin; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis presents the demonstration of what two images or two video sequences can tell us about the situation and model of a third video sequence or image. The method bears ideas from projective geometry as it’s basis. The main purpose of the thesis is to be able to form a base line for tracking an object in a 3D environment not only by using two stereo cameras but also by using other cameras that may be located in various points of the environment. The method visualizes the object and gives the information to a third camera. This way it can be possible to track a moving object, along with it’s visualized model, in an environment without losing sight of it and without having to move the other two stereo cameras which we received data from.
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    Citation Count: ÖDEMİR, S. (2013). A client-server architecture for live video streaming using object relational database. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    A client-server architecture for live video streaming using object relational database
    (2013-06-18) Ödemir, Serkan; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis focuses on live video streaming and offers a new approach based on client-server architecture using relational database. The thesis also analyzes the traditional live video streaming concepts and challenges such as performance problems. On the other hand, this study aims to implement client-server architecture in order to gain performance and provides a faster retrieval and storing time, better download time with minimum metadata by using relational database. This architecture also provides multiple accesses on different domains like embedded devices, Internet based smart TVs etc. The study also covers a Windows desktop application which consists of two live video streaming approaches. Implementation tries to compare traditional video streaming using TCP sockets and client-server model using relational database. MySQL and Apache web server were used to support the thesis proposal. Implementation was tested with various amounts of clients and parameters such as frame rate, buffer size and picture quality. Test results and conditions were also included in the thesis text. Briefly, this thesis tries to provide a better client-server live video streaming solution using the abilities of web and database servers.
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    Citation Count: İBRAHİM, T. (2014). A road map to a successful application of e-government in Iraq. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    A road map to a successful application of e-government in Iraq
    (2014-06) İbrahim, Thaer; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    The most important objective of the government is to provide services to citizens in easy and comfortable ways. The application of an e-government project is the best way to achieve this goal. Moreover, the widespread use of information and communication technology has facilitated the implementation of this project in various ways. The Iraqi government, like other governments, wants to provide these services to citizens through the application of an e-government project. E-government is a way to improve the government's performance to become more efficient and effective. In addition, e-government leads to increased transparency and efficiency in the administration of the state. Therefore, the adoption of e-government is a process of change that will help to expand the areas of citizens and businessmen to participate in the new economy based on knowledge, technology and modern applications. In addition, e-government provides the possibility of the involvement of citizens and civil society in the policy debate through direct dialogue, and support decision-making in a way to facilitate better understanding of the citizens and their needs.This thesis describes what an e-government project is and describes how it should be applied in Iraq as well as the experiences of many countries. This study also examines the challenges that will be encountered in the application of a successful e-government project. Information was collected for this thesis by extracting real data through interviews with people involved in the application of the e-government project in Iraq. In addition, many official documents related to this project was accessed to find out the challenges encountered during the implementation of the project and to find best solutions to remedy these problems
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    Citation Count: FİDANBOY, C.Ö. (2009). A survey of artificial intelligence techniques for capability maturity model integration (CMMI). Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    A survey of artificial intelligence techniques for capability maturity model integration (CMMI)
    (2009-09-03) Fidanboy, Cemalettin Öcal; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Our purpose in this thesis is to investigate the current artificial intelligence applications in scope of the CMMI process areas. Firstly, research is made regarding the CMMI Model. Then, current studies about CMMI process areas by using artificial intelligence techniques were examined. The overall aim of the thesis is to perform a survey about artificial intelligence techniques conjunction with Capability Maturity Model Integration (CMMI) process areas. As a result, future work evaluation in artificial intelligence applications with CMMI was performed.
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    Citation Count: TAŞ, T. (2009). Adopting rup (rational unified process) on a software development project. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Adopting rup (rational unified process) on a software development project
    (2009-09-03) Taş, Tufan; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis analyzes the process of applying Rational Unified Process (RUP) successfully on a software development project step by step. Many software development projects today have a tendency to fail on some level. Even though they may not fail entirely, they might be completed with schedule delays, budget overrun or with poor quality that do not meet the requirements of customers because of poor management and lack of necessary documentation of the project. Applying RUP avoids these major problems in a project by developing set of work products which depict the essentials of the system from requirements to detailed design before the system could be implemented. However, software development teams have an overall attitude that RUP becomes less agile and too rigid as the size of projects get smaller. The thesis will also try to prove that this opinion is not true by using tools Rational Method Composer (RMC) and Rational Software Modeler (RSM) to successfully complete the project.
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    Citation Count: REİSOĞLU, S. (2014). Analysis of the loads and difficulties in IPV4 to IPV6 transition. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Analysis of the loads and difficulties in IPV4 to IPV6 transition
    (2014-05) Reisoğlu, Serap; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis focuses on analysing of the loads and difficulties in IPv4 to IPv6. Due to the depletion of the IPv4 addresses, IPv6 transition is inevitable. Therefore all parties especially network providers, ISPs (Internet Service Providers), hardware manufacturers, software developers and goverments need to prepare itself to this transition. In this thesis obligations of all parties before and after the transition and difficulties of the transition are described in details. At the end of research activities, it is understood that IPv6 transition will be slow about five years. After this five-year period, it is expected that there will be a further speedup of IPv6 transition and IPv6 traffic will be reach more than 50% of total traffic.
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    Citation Count: ER, M.B. (2013). Analysis of Turkish art music: identification of makam signatures. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Analysis of Turkish art music: identification of makam signatures
    (2013-02-07) Er, Mehmet Bilal; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This study aims to gather more scientific-based concrete data by using computer technology and to figure out what extent the makam structure of Traditional Turkish Art Music interpreted in the compositions. For this reason, 120 compositions from Muhayyer kürdi, Acem kürdi and Kürdi makams from Traditional Turkish Art Music were analyzed by computer program in terms of makam and gained data were compared with the makam structure of Traditional Turkish Art Music. Also, makam of the composition is being tried to determine with the help of computer software. Musical note‟s frequency of usage, usage duration and effectiveness level were calculated and progression analysis of the scales in the compositions were done. It was seen that data gained by research show parallelism to a large extent with the makam structure of the Traditional Turkish Art music. In addition, thanks to computer software the makam of the composition can be determined but it is seen that the definition of the progression cannot be expressed by mathematical data with the gained data.
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    Citation Count: ACAR, M.A. (2014). An application of data mining and knowledge discovery process in the field of natural gas exploration. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    An application of data mining and knowledge discovery process in the field of natural gas exploration
    (2014-02) Acar, Mehmet Akif; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis analyzes the process of data mining and knowledge discovery (DM&KD) in the area of natural gas exploration. The process consists of five steps: Problem Definition, Collecting the Data, Data Pre-Processing, Application of the Main DM&KD Algorithms, and Interpretation of the Results of the DM&KD Process. The problem is to identify the DM & KD algorithm among a set of algorithms that extracts the highest number of useful valid rules targeted to find natural gas deposits in sandstone rock type of Osmancik formation in Degirmenkoy natural gas field of Turkey. The data is collected along five wells from the gas field. In the Pre-Processing phase, outliers and erroneous data are removed. Then these data is transformed into Well Log SQL database and necessary connections are made between the database and Weka Data Mining Tool. Non-Nested Generalized Exemplar (NNGE), Predictive Apriori (PA) and PART algorithm are applied using Weka’s toolset. In the gaseous sandstone zones of all Wells, at total best results in terms of valid useful rule amount is attained by NNGE algorithm. PA algorithm presents better performance than PART algorithm in the analyzed zones. For nongaseous zones, same ranking is achieved as in the gaseous sandstone zones. Inaddition to these results, interesting findings related with some of the extracted rules’ explanatory power are determined.
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    Citation Count: ALSARORİ, F.A.S. (2013). Automatic detection of breast cancer in mammogram images. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Automatic detection of breast cancer in mammogram images
    (2013-09-09) Alsarori, Faozia Ali Saif; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    The aim of this thesis research is to harness the great potential of image processing techniques which have evolved significantly in the last years, to build an automatic system to detect and diagnose breast cancer in the digital mammographic images in order to help those interested people in this domain, such as radiologists and specialists in oncology and to improve their performance by reducing error rates of breast cancer diagnosis. Since segmentation and extracting the effective features of mammograms play a major role to isolate and classify suspicious regions which can be subject to cancer, in this work, we focus on abnormality detection using seed-based region growing(SBRG) and Multi-thresholding OTSU's method to segment the region of interest (ROI). Then the texture features of the segmented ROI are extracted which are used to classify the ROI as normal or abnormal tissue by using an Artificial Neural Network (ANN). This system can correctly classify the tested region by a rate of 93.80%.
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    Citation Count: MUTLU, S. (2013). Automatic guitar tuner. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Automatic guitar tuner
    (2013-02-07) Mutlu, Sait; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    This thesis presents the Automatic Guitar Tuner, a new device to help musicians to tune guitars effectively. The device is composed of two main parts: Frequence Analysing and String Adjusting. Frequence analysing job can be done by any tuner on the market. It is very easy to find a tuner to understand the notes of strings. Thus the most important point is string adjusting part. This part consists of a combination of mechanical components and electronic circuits. It is not necessary to make any circuit to analyse frequency in this project. Cherub wst-550c metro-tuner is chosen for this job because of its price and performance. String adjusting is highly complicated job because of its mechanic part and integration of its components. Construction phase and all used equipments are described in 3rd Chapter. test phase an and test results are presented in 5th Chapter. Test results show that the device has enough accuracy and using this device makes easier tuning job.
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    Citation Count: BABA AHMADİ, S.B. (2014). Blind linear correlation technique for image watermarking. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Blind linear correlation technique for image watermarking
    (2014-11) Baba Ahmadi, Sajjad Bagheri; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    In digital environment, make, change, update, distribute and store digital data are convenient, therefore as much abuse of digital data is added. This calls for a method to prove the ownership right on digital contents and to avoid unauthorized users to tamper and distribute digital data. Thereby to achieve this security requirement, watermarking schemes are introduced that have applications in all three forms of media, i.e., video, music and image. This thesis aims to test blind linear correlation technique by Stirmark benchmark 4.0 that contains sixteen different tests, such as attacks and distortions which are well-known in image processing. Those tests are applied on the images which are watermarked by blind linear correlation technique. In this thesis, results of this experiment are discussed and analyzed.
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    Citation Count: KAİRALDEEN, A.R. (2015). Calculation of textual similarity using semantic relatedness function. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Calculation of textual similarity using semantic relatedness function
    (2015-12) Kairaldeen, Ammar Riadh; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Finding the similarity between two sentences is an essential task in different fields such as natural language processing (NLP) and information retrieval (IR). Semantic relatedness similarity between two sentences is concerned with measuring how two sentences share the same meaning. Over the last decade, different methods for measuring sentence similarity have been proposed in the literature. Some methods use word semantic relatedness function in sentence similarity calculations. This thesis aims to compare these methods using four data sets selected from different fields, providing a testable of a various range of writing expressions to challenge the selected methods. Results show that the use of corpus-based word semantic similarity function has significantly outperformed that of WordNet-based word semantic similarity function in sentence similarity methods. Moreover, we propose a new sentence similarity measure method by extending an existing method in the literature called Overall similarity. Furthermore, the results show that the proposed method has significantly improved the performance of the Overall method. All the selected methods are tested and compared with other state-of-the-art methods.
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    Citation Count: MUSTAFA, M.N. (2012). Congestion detection and avoidance using fuzzy systems. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Congestion detection and avoidance using fuzzy systems
    (2012-09-03) Mustafa, Mohammed N.; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    In this thesis, A congestion problem is studied, The study is talking about how to detect the congestion and how to avoid it. Service providers are interested in optimizing their networks performance because of the high cost of network assets and commercials, and competitive nature of Internet service provisioning, This leads them to reduce congestion hotspots and to improve resources utilization across the network, which, in turn, results in an increased revenue collection. One of the ways to achieve such goals is through applying the controller scheme and by early detect it, we use Fuzzy Systems to detect congestion and avoid it, Because it improve that purpose. In this Thesis an algorithms to detect and control congestion problem based on Fuzzy Systems is presented, this algorithms are called Fuzzy Logic Congestion Detection (FLGD) and Fuzzy Logic Controller (FLC). This information about these algorithms are simulated, using MATLAB Simulation program. The proposed algorithms showed good performance and good result in reduce delay and raise throughput.
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    Citation Count: GENÇ, B. (2011). Content analysis of un-structured local internet news websites. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Content analysis of un-structured local internet news websites
    (2011-09) Genç, Bilal; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    In today’s world data is a real power. In order to get advantage of the data power, analysis of the data is very important. Social incidents have been analyzed for more than a century. In order to understand social incidents better, data has big importance. Localized social analysis can be easily done by analyzing the local Internet content. In this study methods for analysis of the local news websites are discussed. On the other hand, a solution is introduced to overcome problems of un-structured website designs such as Turkish character set problems, non standard development techniques, unrelated contents such as advertisements and comments. An algorithm and code was developed to filter and index news website content. As a result code was implemented in a website and proved to be running.
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    Citation Count: GÖKBULUT, M.U. (2013). Conversion of two-dimensional videos to threedimensional. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Conversion of two-dimensional videos to threedimensional
    (2013-06-17) Gökbulut, Mehmet Umut; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Through existing technology, depth map is provided by means of general purpose video converting programs. However forming the depth map estimation by these programs need not only much more labour but time also. The main contribution of this study is to provide depth map estimation by a faster and easier way than the current methods. After performing depth map estimation, a new video is formed by integrating this depth map and existing video. This new video can be played side by side on the 3D devices.
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    Citation Count: DEMİRDÜMEN, B. (2008). Data and text mining techniques on real medical data. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Data and text mining techniques on real medical data
    (2008-09-10) Demirdümen, Burcu; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Clinical databases have been accumulating large quantities of data about patients and their medical conditions. Relationships and patterns within that data could provide new medical information and knowledge. Yet, unfortunately, few methodologies have already been developed and applied to discover this hidden knowledge. In this study, the techniques of data mining (also known as Knowledge Discovery in Databases) were used to search for relationships in a clinical database. The study describes the processes involved in mining a clinical database; it also includes the processes of data warehousing, data query and cleaning, and data analysis. The study is extended to demonstrate text mining too.
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    Citation Count: HASHİM SHAKER, E. (2015). Decision making via the analysis of school locations in Kirkuk province using gis technology. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Decision making via the analysis of school locations in Kirkuk province using gis technology
    (2015-12) Hashim Shaker, Ehab; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    GIS technology is increasing in importance and now affects many aspects of daily life. In recent decades, GIS technology has entered many service fields, in particular health and education, two of the most popular services in any community. GIS technology is often employed to both regulate these services and to make better decisions. Furthermore, in order to construct a new and modern city in any country, GIS technology is typically used to achieve homogeneity of service distribution for the benefit for all citizens across society. The present thesis thus examines the challenges currently facing the city of Kirkuk in terms of service distribution, especially regarding education services. The results show that schools in the study area suffer from poor distribution, putting pressure on the service providers and adversely affecting the standard of education. Recommendations based on this research include the need to develop a plan aimed at the development of education services which is in line with both planning and exceptional standards. Work should be undertaken to establish new school sites in order to meet the shortfall currently experienced in the study area, taking into account urban development and future population growth. Finally, this thesis identifies those schools which are either directly or indirectly at risk due to their proximity to institutions targeted by terrorist operations.
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    Citation Count: ALGOIARE, O.T. (2014). Design and implementation of intelligent home using gsm network. Yayımlanmamış yüksek lisans tezi. Ankara: Çankaya Üniversitesi Fen Bilimleri Enstitüsü.
    Design and implementation of intelligent home using gsm network
    (2014-09) Algoiare, Omar Talal; Çankaya Üniversitesi, Fen Bilimleri Enstitüsü, Bilgisayar Mühendisliği Bölümü
    Intelligent home devices such as weather, safety or security systems have become more advanced with the latest developments in Microcontroller and wireless technology, such as Wi-Fi, GSM, Bluetooth and ZigBee. For most of these devices, the difficulty lies in their graphical user interfaces and the number of controlling devices. In the last few years with the development of wireless technologies, a good solution is yet to be found for the smart home system. In this thesis, an intelligent home system has been designed and implemented using the GSM network. Generally, this system consists of two parts: hardware and software. The hardware consists of many units, mobile phones, computers, smart card readers, temperature,gas, motion and rain sensors, a GSM module, a 9V charger, a Microcontroller, an SDRAM module and a buzzer alarm. The first important hardware unit is the Microcontroller; it is the brain of this system. All hardware units connect to this Microcontroller. The Arduino Mega 2560 is used to build this system. Moreover, a SIM900 GSM/GPRS modem is used to connect with the GSM network. This modem is responsible for sending and receiving instructions and alerts. The SDRAM is used to save all events that occur in the home. Furthermore, the smart card reader using RFID technologies used to open and close the doors to specific persons and also to save any events in a specific text file in the SDRAM. The software is the second part of this system. It is the GUI of the system and is built in the VB6 environment. The software is connected to hardware devices through USB ports. Moreover, it works to control and monitoring this system from the computer. The software consist of three parts: sensors reading values, electronicdevices turning other devices on/off and real-time reading for monitoring instructions from the USB port. This system works in two ways: portably with a 9-volt charger and with the computer. The job of the system is to monitor heat and gas values in the home and determine whether there are any high proportions. The system works in many procedures, such as sending SMS alerts to mobile phones, sounding the buzzer inside the home and saving these events to SDRAM. In the event of problems in the GSM network, such problems are solved by using SDRAM to save all events to a specific text file. Moreover, the system uses power-saving devices including a motion sensor. This sensor turns off lights automatically when there is no one in the room. Finally, the system monitors outside weather: for example, in the event of rain, the system closes the roof of the garage automatically.