Computer Sciences Commons^™

Krahasimi I Shërbimeve Të Ofruara Në Cloud Ndaj Shërbimeve Tradicionale, Enis Krapi

Theses and Dissertations

Teknologjia cloud është shfaqur si zhvillim i rëndësishëm në teknologjinë e informacionit. Përkundër të gjithave vëmendja është tek ajo se, analizat ekzistuese të përqëndrohen në çështjet që lidhen me objektivat, metodologjitë, shërbimet, kualitetin e shërbimeve të teknologjisë cloud, aspektin e sigururisë. Në këtë punim diplome shqyrtohen konceptet kyçe në cloud, sa i përket krahasimit të teknologjisë tradicionale dhe teknologjisë cloud si nga aspekti i menaxhimit, e poashtu edhe nga aspketi i sigurisë.

Pasi teknologjia cloud është vazhdimisht në evoluim, shpesh duhet sqaruar terminologjia dhe konceptet e përdorura në këtë teknologji. Këtu interneti futet me bazë në teknologjinë cloud, duke eksploruar …

Siguria E Të Dhënave Në Rrjetë, Shkëlqim Krasniqi

Theses and Dissertations

Siguria e të dhënave në rrjetë është berë pjesë e rëndesishme e institucioneve dhe bizneseve pasi në rrjetë bëhet shkembimi i informacioneve nepër vende të ndryshme. Qellimi i këtij studimi është që të bejmë një hulumtim global dhe lokal për sigurinë e të dhënave në rrjetë.

Siguria e rrjetit është çdo aktivitet i dizajnuar për të mbrojtur përdorshmërinë dhe integritetin e rrjetit tuaj dhe të dhënave. Ai përfshin teknologjinë harduerike dhe softuerike. Siguria efektive e rrjetit menaxhon qasjen në rrjet. Ajo synon një shumëllojshmëri të kërcënimeve dhe i ndalon ato të hyjnë ose të përhapen në rrjetin tuaj.

Problemi i …

Smart City Lights, Shyhrete Buzaku

Theses and Dissertations

Aktualisht, në të gjithë botën, energji e madhe elektrike konsumohet nga dritat e rrugës, të cilat automatikisht ndizen kur bëhet errësirë dhe automatikisht fiken kur bëhet dritë. Kjo është humbje e madhe e energjisë në të gjithë botën dhe duhet të ndryshohet. Qëllimi kryesor i sistemeve të dritave të zgjuara të rrugëve është që dritat të ndizen kur është e nevojshme dhe dritat të fiket kur nuk nevojiten. Sjellja ideale e sistemit të dritave të zgjuara të rrugëve është të bëhet ndezja e dritave të rrugës gjatë natës në mënyrë efiçiente dhe efektive. Sa herë që dikush kalon pranë dritave …

A Shared-Memory Coupled Architecture To Leverage Big Data Frameworks In Prototyping And In-Situ Analytics For Data Intensive Scientific Workflows, Alexander Michael Lemon

Theses and Dissertations

There is a pressing need for creative new data analysis methods whichcan sift through scientific simulation data and produce meaningfulresults. The types of analyses and the amount of data handled by currentmethods are still quite restricted, and new methods could providescientists with a large productivity boost. New methods could be simpleto develop in big data processing systems such as Apache Spark, which isdesigned to process many input files in parallel while treating themlogically as one large dataset. This distributed model, combined withthe large number of analysis libraries created for the platform, makesSpark ideal for processing simulation output.Unfortunately, the filesystem becomes …

How Could Robots Successfully Elicit Help From Humans?, Layla Alarifi

Theses and Dissertations

With the rapid growth of robot usages, more attention has been focused on the robots’ hardware and software to improve functionality. However, the interaction between humans and robots can be key to enhancing robots’ performance. Autonomous mobile robots may more successfully complete their tasks if they effectively solicit help from humans when they reach their limits. Hence, in this thesis, we examine three different manners, friendly, polite, and indirect, combining different interaction modalities, like speech and gestures. We conducted an experiment (involving 45 subjects) where the NAO robot addresses bystanders with the aforementioned three manners to elicit help with opening …

A Network-Driven Approach For Characterizing Emoji Usage In Social Media, Seyed Mohammad Mahdi Seyednezhad

Theses and Dissertations

With the rapid growth in the number of online users, people tend to use emojis to enrich their text with emotions. In this dissertation, after an overview of the previous studies on emojis, we provide a brief introduction to emojis and the way they are constructed by the Unicode codes points. Then, we extract the emojis from messages collected from Twitter in different topics. In the first step towards analyzing the emoji usage on social media, we created the directed weighted co-occurrence network of emojis for each topic. By analyzing these networks, we realized that emoji usage has a similar …

Incremental Data Annotation With Mask R-Cnn, Michael Miller

Theses and Dissertations

With the advent of object detection and instance segmentation algorithms, the complexity of annotating training data has compounded. In traditional image classification tasks, training images must only be given a label. This type of training data alone is not enough to perform detection or instance segmentation as we need additional object level information like bounding boxes or segmentation masks appended to the annotation. There are many tools that help a user process images to produce data annotations that contain bounding box and segmentation mask information. However, most of these are semi-supervised and require a user to be present for each …

The Trust-Based Interactive Partially Observable Markov Decision Process, Richard S. Seymour

Theses and Dissertations

Cooperative agent and robot systems are designed so that each is working toward the same common good. The problem is that the software systems are extremely complex and can be subverted by an adversary to either break the system or potentially worse, create sneaky agents who are willing to cooperate when the stakes are low and take selfish, greedy actions when the rewards rise. This research focuses on the ability of a group of agents to reason about the trustworthiness of each other and make decisions about whether to cooperate. A trust-based interactive partially observable Markov decision process (TI-POMDP) is …

Multi-Resolution Models For Learning Multilevel Abstract Representation With Application To Information Retrieval, Tolgahan Cakaloglu

Theses and Dissertations

Deep language models learning a hierarchical representation proved to be a powerful tool for natural language processing, text mining, and information retrieval tasks. However, more specifically, representations that perform well for ad-hoc retrieval must capture semantic meaning at different levels of abstraction or context-scopes. The primary goal of ad-hoc retrieval is to find relevant documents satisfying the information need posted in a natural language query. It requires a good understanding of the query and all the documents in a corpus, which is difficult because the meaning of natural language texts depends on the context, syntax, and semantics. In this dissertation, …

Krahasimi I Karakteristikave Të Protokoleve Në Kuadër Të Eps, Ajnur Bullaku

Theses and Dissertations

Duke e marr parasysh përdorimin shumë të madhe të teknologjisë 4G në tërë globin, gjithmonë është në rritje edhe kërkesa e sigurisë të lartë për të mbrojtur informatat të cilat rrugëtojn ne rrjetë nga keqpërdoruesit. AAA mekanizmi është pika kyçë në ketë drejtim ku edhe kemi menduar se është e rëndësishme ta shtjellojmë ketë temë, që tregon se si funksion AAA mekanizmi dhe protokollet që bëjnë pjesë në të.

Kërkesa për AAA protokollet është duke u rritur çdo ditë e më shumë. Protokollet me më shumë përdorim janë RADIUS dhe TACACS+ por nuk po ja arritin ti ndjekin zhvillimet e …

E-Mail I Bazuar Në Zë Për Njerëzit Me Shikim Të Dëmtuar, Arianit Mujaj

Theses and Dissertations

Një aplikacion mobil në rastet më të shpeshta reprezenton një funksionalitet sado bazik apo të komplikuar që njerëzit përdorin në jetën e tyre personale ose profesionale, në formë mobile të cilën mund ta bartin ngado me vete. Zhvillimi i aplikacioneve mobile është një gjë relativisht sfiduese, e cila kërkon kohë dhe dedikim të veçantë si proces inxhinierik. Kjo temë ka për synim të shtjellojë procesin e zhvillimit dhe dizajnimit të aplikacionit mobil “E-mail i bazuar në zë” dhe implementimin e teknologjisë “Voice recognition”. Për zhvillimin e një aplikacioni mobil të veçantë dhe të suksesshëm të këtij lloji, përveç kodit nevojiten …

Big Data Analysis With Apache Pig-Apache Hadoop, Blerim Latifi

Theses and Dissertations

Në këtë temë prezentoj 'Big Data Analysis with Apache Pig-Apache Hadoop' në fushën e grumbullimit të të dhënave, për shkak se proceset e grumbullimit të të dhënave përdoren aktualisht nga shumica e organizatave në botën dixhitale që po zgjerohet me informacione të pafundme. Platformat paralele të përpunimit dhe sistemet paralele të të dhënave që janë gjithnjë e më popullore. Frameworkat kanë përmirësuar ndjeshëm performancën e analizës së të dhënave. Dhjetëra ose qindra nyje vrapojnë së bashku për të ekzekutuar një detyrë. Është shumë e rëndësishme të përmirësohet shfrytëzimi i burimeve dhe efikasiteti i llogaritjes. Sipas Microsoftit, ekziston rreth 30% përllogaritjeve …

Computational Neuroscience, Arnold Gashi

Theses and Dissertations

Understanding how the brain works is a challenge that is attracting a number of scientists from many disciplines. This thesis is a study, to understand some of the models that explain the procedure how the brain works. By understanding computational models of the brain, we as programmers can create simulated programs that try to mimic brain behavior, and using them in many divisions of technology. CNS is very wide field and has so many things to cover this thesis will cover the basic construction of the brain, from neurons, as the principle cell of nervous system, to understand their complex …

Analiza E Algoritmeve Në Cloud Dhe Aspekti I Sigurisë Së Tyre, Fatlum Arifi

Theses and Dissertations

Sistemet e ruajtjes në re(cloud) janë duke u bërë më të lira dhe më të disponueshme. Me rritjen e popullaritetit të sistemeve të ruajtjes së reve, si në industri ashtu dhe në jetën tonë personale njerëzit kanë filluar të kujdesen për sigurinë e të dhënave të tyre në cloud. Pra, siguria është një faktor i rëndësishëm në cloud-sisteme për të siguruar që të dhënat e klientëve të vendosen në mënyrë të sigurt në cloud.

Ky punim ka si qëllim studimin e Cloud kompjuterit; karakteristikat e një cloudi, tipet e tyre, modelet e ndryshme. Studimi është pajisur me një gamë të …

Multi-Human Management Of A Hub-Based Colony: Efficiency And Robustness In The Cooperative Best M-Of-N Task, John Rolfes Grosh

Theses and Dissertations

Swarm robotics is an emerging field that is expected to provide robust solutions to spatially distributed problems. Human operators will often be required to guide a swarm in the fulfillment of a mission. Occasionally, large tasks may require multiple spatial swarms to cooperate in their completion. We hypothesize that when latency, bandwidth, operator dropout, and communication noise are significant factors, human organizations that promote individual initiative perform more effectively and resiliently than hierarchies in the cooperative best-m-of-n task. Simulations automating the behavior of hub-based swarm robotic agents and groups of human operators are used to evaluate this hypothesis. To make …

Methodology For Comparison Of Algorithms For Real-World Multi-Objective Optimization Problems: Space Surveillance Network Design, Troy B. Dontigney

Theses and Dissertations

Space Situational Awareness (SSA) is an activity vital to protecting national and commercial satellites from damage or destruction due to collisions. Recent research has demonstrated a methodology using evolutionary algorithms (EAs) which is intended to develop near-optimal Space Surveillance Network (SSN) architectures in the sense of low cost, low latency, and high resolution. That research is extended here by (1) developing and applying a methodology to compare the performance of two or more algorithms against this problem, and (2) analyzing the effects of using reduced data sets in those searches. Computational experiments are presented in which the performance of five …

Deep Synthetic Noise Generation For Rgb-D Data Augmentation, Patrick Douglas Hammond

Theses and Dissertations

Considerable effort has been devoted to finding reliable methods of correcting noisy RGB-D images captured with unreliable depth-sensing technologies. Supervised neural networks have been shown to be capable of RGB-D image correction, but require copious amounts of carefully-corrected ground-truth data to train effectively. Data collection is laborious and time-intensive, especially for large datasets, and generation of ground-truth training data tends to be subject to human error. It might be possible to train an effective method on a relatively smaller dataset using synthetically damaged depth-data as input to the network, but this requires some understanding of the latent noise distribution of …

A Robust And Automated Deconvolution Algorithm Of Peaks In Spectroscopic Data, William Johan Burke Iv

Theses and Dissertations

The huge amount of spectroscopic data in use in metabolomic experiments requires an algorithm that can process the data in an autonomous fashion while providing quality of analysis comparable to manual methods. Scientists need an algorithm that effectively deconvolutes spectroscopic peaks automatically and is resilient to the presence of noise in the data. The algorithm must also provide a simple measure of quality of the deconvolution. The deconvolution algorithm presented in this thesis consists of preprocessing steps, noise removal, peak detection, and function fitting. Both a Fourier Transform and Continuous Wavelet Transform (CWT) method of noise removal were investigated. The …

Mikroserviset Vs Arkitektura Monolitike: Një Krahasim I Arkitekturës Së Softuerit, Besart Mullabazi

Theses and Dissertations

Arkitektura monolitike është një arkitekturë standarde për zhvillimin e aplikacioneve softuerike e cila është në përdorim për shumë kohë. Një aplikacion monolit paraqet një bazë të vetme të kodit e cila e ndërton aplikacionin e plotë nga një vend i vetëm i sistemit. Ndërtimi i aplikacionit monolitik është mjaft praktik si për zhvillim ashtu edhe për testim përderisa madhësia e kodit është relativisht e vogël.

Kohën e fundit ka hyrë në përdorim një arkitekturë e re për ndërtimin e aplikacioneve e cila është e ndarë në mikroservise. Arkitektura e mikroserviseve përbehet prej shumë mikroserviseve, ku çdo mikroservis është aplikacion i …

Zhvillimi I Aplikacionit Për Termine, Getoar Sadiku

Theses and Dissertations

Një nga problemet më akute në botën e biznes marketingut të produkteve nëpërmjet thirjeve telefonike paraqitet menagjimi efiaks i tyre. Në shumicën e rasteve përdorin exel për të ruajtur të dhënat e klientëve. Bazuar në këtë fakt, sisteme të vogëla softuerike janë zhvilluar në përputhje me kërkesën në rritje nga bizneset. Këto platforma softuerike kanë disa probleme kryesisht në aspektin e menagjimit të kohës, menagjimin e resurseve brenda kompanis si dhe çmimet e larta. Kjo shkakton kosto të mëdha e produktivitet të ulët, në disa raste humbjen e terminit pasi që personi i caktuar nuk informohet në kohë edhe pse …

Performance Evaluation Of 3rd Normal Form Decompositions, Ben Mathew

Theses and Dissertations

When a relational database is chosen, normalization theory is a set of guidelines that may lead to efficient database designs. Thus, normalization of tables in a database is a common process used for the analysis of relational databases. Sufficient normalization of databases aims to decompose existing relational tables in order to minimize database redundancy while preserving dependencies between attributes. It also facilitates correct insertion, deletion, and modification of data in the database. Given an un-normalized relational database, a redesign with no data redundancy and which is guaranteed to preserve dependencies is not always achievable. Previous studies have shown that it …

Assume-Guarantee Reasoning Using A Cyber Security Ontology, Ali Abdurhman Alfageeh

Theses and Dissertations

Design of a network is a challenging problem as it involves the integration of several complex components such as routers, servers, computers, smart devices. This is further complicated by the need to have robust security policies implemented to prevent violation of confidentiality as the networked devices interact. The design of such complex networked systems demand a more rigorous approach to the modeling and analysis, which can be inherited from the field of Software engineering. Presently, network or security engineers do not use a system/software engineering approach to design and build cybersecurity systems. Thus, we propose a system/software engineering approach to …

Encryption Algorithms For Data Security In Local Area Network, Asmaa Essam Alhibshi

Theses and Dissertations

Cryptography plays an important part in data and information security. An overview of cryptography is given in the paper. This paper tries to compare most commonly used encryption algorithms RSA and AES, with their performance analysis on java and C++. At first a brief introduction on types of cryptography i.e. symmetric and asymmetric encryption algorithm. Then previous work on these encryption algorithms is discussed and their performance comparison in the form of table is given. Then the objectives of this thesis is given. In chapter 3, a detailed description of ciphering algorithms, RSA, AES, TCP and UDP is provided. Chapter …

Detecting Conflicts Among Autonomous Devices In Smart Homes, Fahd Alharithi

Theses and Dissertations

Emerging technologies such as Internet-of-Things, sensors, and communication networks have been introduced into traditional homes to offer a wide range of smart home services to simplify home appliances or home care and enhance people’s lifestyles. Currently, the smart home system has been integrated with various features of the production line and equipped with multiple sensors and actuators to meet home occupants specifications by setting customized user policies. These days home automation systems have become widely adopted. When privileged users interact with a smart home system, their intents of using this system are probable to be various, which might lead to …

Increasing User Confidence In Privacy-Sensitive Robots, Raniah Abdullah Bamagain

Theses and Dissertations

As the deployment and availability of robots grow rapidly, and spreads everywhere to reach places where they can communicate with humans, and they can constantly sense, watch, hear, process, and record all the environment around them, numerous new benefits and services can be provided, but at the same time, various types of privacy issues appear. Indeed, the use of robots that process data remotely causes privacy concerns. There are some main factors that could increase the capability of violating the users’ privacy, such as the robots’ appearance, perception, or navigation capability, as well as the lack of authentication, the lack …

Mobile Solar Energy Environmental Control System With Remote Accessibility, Luis S. Garay

Theses and Dissertations

The proposed system, Mobile Solar Energy Environmental Control System with Remote Accessibility (mSEECS w/ RA), is based on the utilization of an already available Energy Storage Unit (ESU) in a Transport Unit System (TUS) to harness solar energy to provide a system to enhance the environment, safety and security of a TUS in a stationary or a mobile state by monitoring and controlling the operation of its onboard systems, and provide remote accessibility to know the state of affairs at any time. To relate to a real world application, the battery (ESU) of a vehicle (TUS) is underutilized …

Data Gathering In Cognitive Radio Ad Hoc And Sensor Wireless Networks, Kimberly A. Brown

Theses and Dissertations

Data gathering is a network communication task in which all of the network’s nodes send their individual messages to a distinguished sink node. In cognitive radio ad hoc and sensor wireless networks (CR-AHSWNs), unlicensed secondary users (SUs) opportunistically use channels when the licensed primary users are not using them. Therefore, the channels available to each SU vary with time and location, which makes the development of data gathering algorithms for CR-AHSWNs challenging.

In this thesis, a data gathering protocol for CR-AHSWNs is proposed. The protocol consists of several distributed SU action selection and channel selection algorithms. An algorithm that can …

Censoring Private Information From Network Packet Traces, Suzan Jastaniah

Theses and Dissertations

Censoring Mechanism of Network packet traces has been studied in this paper which corresponds to the issue of client information security during network connectivity pinging. Typically when client checks its connectivity with server, its private information is communicated which can create vulnerability for the client. To solve this issue, censoring mechanism and censoring techniques have been read in depth with objective to provide a mechanism for securing client’s information from revealing to any third party. An encryption mechanism is proposed, in this regard, for the encapsulation and encryption of private network information in the network traces. Different encryption techniques have …

Performance Evaluation Of Ipv6 And The Role Of Ipsec In Encrypting Data, Yasser Alhoaimel

Theses and Dissertations

Objectives This research concentrates on IPv6 security and its technical aspects. The performance of IPv6 has carefully evaluated, tested, and analyzed. Beyond comparing IPv4 and IPv6 in terms of security, this thesis does not focus on IPv4; preferably, the priority is to concentrate on the security basis of IPv6. The comparison was based on previous researches that can be found in the references section. Furthermore, the role of IPsec in encrypting data is another main objective of this research and is specifically explained. This research demonstrates how IPsec is used in encrypting data so that IPv6 extension headers will be …

First Hop Redundancy Protocols (Fhrp), Raghad Faisal Alshehri

Theses and Dissertations

When a network is designed, the most important thing that is always kept in mind is the factor of availability. However, a lot of researchers are still working on managing and implementing more dependable networks are resilient to severe failovers and can cope up under immense traffic loads. With that being said, a lot of questions still need to be answered according to the financial and implementation point of view. Correspondingly, the current study aims at answering all these questions and providing with the best optimal solutions to deploy dependable networks primary aimed towards hardening and enforcing various techniques and …