Computer Sciences Commons^™

Sortedeffects: Sorted Causal Effects In R, Schuowen Chen, Victor Chernozhukov, Iván Fernández-Val, Ye Luo

The R Journal

Chernozhukov et al. (2018) proposed the sorted effect method for nonlinear regression models. This method consists of reporting percentiles of the partial effects, the sorted effects, in addition to the average effect commonly used to summarize the heterogeneity in the partial effects. They also propose to use the sorted effects to carry out classification analysis where the observational units are classified as most and least affected if their partial effect are above or below some tail sorted effects. The R package SortedEffects implements the estimation and inference methods therein and provides tools to visualize the results. This vignette serves as …

Krahasimi I Css Frameworkave Bootstrap 4 Dhe Tailwind Css Duke Zhvilluar Një “Admin Panel”, Albert Qerimi

Theses and Dissertations

Qëllimi kryesor i këtij punimi është krahasimi i frameworkave CSS Bootstrap dhe Tailwind CSS për më tepër të dy frameworkat janë krahasuar në mënyrë që të mund të zgjedhni atë që është më produktive dhe efikase për nevojat e projektit tuaj, parametra si përformanca, lehtësia e të kuptuarit, mbështetja, përmbajta, konfigurimi dhe teori karakteristike janë marrë për bazë dhe si rezultat është zhvilluar një projekt i njëjte me të dy këto frameworka.

Edhe aplikacionet me moderne të ueb-it përdorin front end frameworka për krijimin e përmbajtjes të struktures në mënyrë me të shpejte dhe efikase që kursen shumë kohe sidomos …

Përfitimet Praktike Të Përdorimit Të Aop Si Paradigme E Programimit Në Zhvillimin E Softuerit, Esmoza Elshani

Theses and Dissertations

Sfida kryesore në projektimin e softuerit është të merremi me ndarjen e shqetësimeve teknike dhe se si ti menaxhojmë këto shqetësime. Ndarja e shqetësimeve është çelësi për të mbajtur kontrollin e përgjithshëm përballë problemeve komplekse dhe zgjidhjeve te një projekti.

Me kalimin e viteve, kërkimi për ndarje më të mirë të shqetësimeve na ka dërguar në teknologji të ndryshme, ndër të cilat janë teknikat e modulimit siç është programimi i strukturuar, llojet abstrakte të dhënave dhe orientimi në objekte. Një teknike e re e programimit të orientuar në aspekti (AOP) është teknika më e shquar për ndarjen e shqetësimeve.

Përmes …

Deployment Trends Of The Internet Of Things, Laura Berisha

Theses and Dissertations

The Internet of Things (IoT) is the internetworking of physical devices, vehicles and other objects which consists of an embedded system with sensors, actuators and network connectivity that enable to collect and exchange data. The IoT allows objects to be sensed or controlled remotely across existing network infrastructure, creating opportunities for more integration of the physical world into computer-based systems, and result in improved accuracy, efficiency and economic benefit. The IoT is a rapidly increasing and promising technology which becomes more and more present in our everyday lives.

We can say that Internet of Things (IoT) is a new revolution …

Erp Dhe Bashkëpunimi Me Organizata, Trendet E Zhvillimit Dhe E Ardhmja E Tyre, Arta Jusaj

Theses and Dissertations

Rritje demografike dhe standardi jetësorë në nivelin global në njëren anë, si dhe kërkesa për shërbime të shpejta, të sakta, të menaxhuara dhe të kontrolluara në kohë, në anën tjetër, ishin një nga elemetet kryesor për të shtyrë para zhvillimin shkencor për të krijuar sisteme softuerike me qëllim që njeriu të përball me lehtësi kërkesat e tijë ditore. Sistemi ERP paraqet një sistem softuerik për planifikimin dhe menaxhimin e bizneseve, duke përfshirë zonën funksionale të tijë siç janë: planifikimi, prodhimi, shitja, marketingu, shpërndarja, kontabiliteti, menaxhimi finaciar, menaxhimi i burimeve njerzore, transporti, servisimi etj. Ky punim ka për qëllim të trajtoj …

Sistemet Për Përcjelljen E Huave Në Institucionet Mikrofinanciare, Arianit Gashi

Theses and Dissertations

Sistemet për përcjelljen e huave janë sistem kryesor në institucionet mikrofinanciare, pasiqë produkti kryesor e në shumë raste edhe i vetmi produkt në institucione mikrofinanciare është huaja/ kredia. Tema së pari trajton karakteristikat e përgjithshme të këtyre sistemeve, pastaj hyn në vecoritë dhe sfidat e këtyre sistemeve, si janë raportet dhe kërkesat për informacione nga këto sisteme, dhe pastaj më gjerësisht trajtohet zhvillimi dhe implementimi i këtyre sistemeve. Gjatë këtij studimi janë hulumtuar të metat e sistemeve për përcjellje të huave dhe konkludohet që e metë kryesore është integrimi me sistemin e pagesave. Andaj, kjo teme trajton sistemet për përcjelljen …

Javascript Frameworks, Arbias Krasniqi

Theses and Dissertations

JavaScript është një gjuhë object-oriented që përdoret për të bërë faqe interaktive (p.sh. duke pasur animacione komplekse, butona të klikueshme, menutë popup etj.). Ekzistojnë gjithashtu versione më të avancuara të versionit të serverit të JavaScript, si Node.Js, të cilat ju lejojnë të shtoni më shumë funksionalitete në një faqe interneti (si bashkëpunimi në kohë reale midis kompjuterëve të shumtë). JavaScript mund të lidhet me objektet e mjedisit të tij për të siguruar kontrollin programatik mbi ta. JavaScript përmban një bibliotekë standarde të objekteve, të tilla si Array, Date dhe Math, dhe një sërë elementësh të gjuhës siç janë operatorët, strukturat …

Search Engine Optimization Implementation Process, Besartë Parduzi

Theses and Dissertations

Zhvillimi i teknologjisë në vitet e fundit ka arritur pothuajse në kulminacion dhe ka prekur gati cdo fushë të jetës tonë gjithashtu edhe bizneset dhe organizatat e ndryshme. Gati të gjitha bizneset dhe organizatat shfaqin veprimtarinë dhe hapat e zhvillimit të tyre nëpërmjet platformave të ndryshme online siç janë rrjetet sociale e web-faqet personale. Bota e digjitalizimit është duke u zhvilluar në të gjitha aspektet duke ndikuar që gjithashtu edhe marketingu të mar kahje digjitale dhe duke nisur një trend të ri të aplikimit të tij nga bizneset dhe organizatat.Ky trend cdo ditë e më shumë do të bëhet e …

Ndikimi I Cloud Computing Në Ndërmarrje Të Vogla Dhe Të Mesme Nga Aspekti Financiar Dhe I Sigurisë Në Kosovë, Burim Qerimi

Theses and Dissertations

Inovacionet apo shpikjet e reja janë të nevojshme për të ecur tutje në valën e pashmangshme të ndryshimeve gjatë evoluimit jetësor. Shumica e ndërmarrjeve vazhdimisht mundohen të zvogëlojnë shpenzimet e tyre ku një prej mënyrave është zvogëlimi i shpenzimeve në shërbimet informative. Kërkesa e zvogëlimit të shpenzimeve në ndërmarrje në anën e shërbimeve informative ka krijuar nevojën e krijimit të platformës së re Cloud Computing. Platforma e re Cloud computing ofron shërbime më të mira kompjuterike duke përmirësuar cilësinë dhe reduktimin e administratës dhe infrastrukturës brenda një ndërmarrje. Platforma Cloud Computing bazohet në atë duke përmbledhur shumë aplikacione në shërbim …

Using Stream Processing For Albanian Twitters Data Analysis, Veton Dabiqaj

Theses and Dissertations

Sferat e Stream Reasoning dhe Stream Processing, janë sfera të reja dhe ka shumë pak sisteme që përkrahin rezonimin mbi të dhënat rrëke (stream data) si dhe procesimin e tyre. Po ashtu, aktualisht mungon një platformë që mundëson procesimin e cicërimave të Twitter-it në gjuhën shqipe. Duke u bazuar se mungon një sistem i tillë, në këtë temë trajtohet krijimi i një platforme e cila mundëson resonimin dhe procesimin e cicërimave në gjuhën shqipe. Për përpunimin e cicërimave përdoret C-SPARQL. C-SPARQL është një gjuhë e re për pyetësorët e vazhdueshëm mbi rrjedhën e informatave në kohë reale (streams) të formatit …

Survey On Individual Differences In Visualization, Zhengliang Liu, R. Jordan Crouser, Alvitta Ottley

Computer Science: Faculty Publications

Developments in data visualization research have enabled visualization systems to achieve great general usability and application across a variety of domains. These advancements have improved not only people's understanding of data, but also the general understanding of people themselves, and how they interact with visualization systems. In particular, researchers have gradually come to recognize the deficiency of having one-size-fits-all visualization interfaces, as well as the significance of individual differences in the use of data visualization systems. Unfortunately, the absence of comprehensive surveys of the existing literature impedes the development of this research. In this paper, we review the research perspectives, …

Crowdsourcing Classroom Observations To Identify Misconceptions In Data Science, Ruth E. H. Wertz, Karl Rb Schmitt, Linda Clark, Bjorn Sandstede, Katherine M. Kinnaird

Computer Science: Faculty Publications

Web-browsing histories, online newspapers, streaming music, and stock prices all show that we live in an age of data. Extracting meaning from data is necessary in many fields to comprehend the information flow. This need has fueled rapid growth in data science education aiming to serve the next generation of policy makers, data science researchers, and global citizens. Initially, teaching practices have been drawn from data science's parent disciplines (e.g., computer science and mathematics). This project addresses the early stages of developing a concept inventory of student difficulty within the newly emerging field of data science. In particular this project …

Cybersecurity, Digital Forensics, And Mobile Computing: Building The Pipeline Of Next-Generation University Graduates Through Focused High School Summer Camps, Mahmoud K. Quweider, Fitratullah Khan, Liyu Zhang, Lei Xu, Yessica Rodriguez, Yessenia Rodriguez

Computer Science Faculty Publications

To prepare the next generation of skilled university graduates that would help in filling the national need for cybersecurity, digital forensics, and mobile computing professionals, a team of minority/under-represented graduate students, the University Upward Bound Program (a federally funded program and part of the U.S. Department of Education; one of 967 programs nationwide) staff, and faculty from the Computer Science (CS) department got together and proposed a focused 10-week long funded summer camp for two local high schools with the following objectives:

1. Provide graduate students to instruct in the areas of` mobile application development, forensics and cyber Security.

2. …

Proof-Of-Activity Consensus Protocol Based On A Network's Active Nodes, Roman Belfer, Antonina Kashtalian, Andrii Nicheporuk, George Markowsky, Anatoliy Sachenko

Computer Science Faculty Research & Creative Works

The paper proposes a new socially oriented protocol that avoids pseudo-decentralization and monopolization of the network, increases the availability of the system, provides a fair selection of potential validator nodes, and provides a fair reward for creating new blocks and adding them to the blockchain. Our proposed protocol provides for the creation and addition of new blocks to a blockchain. Defines a node validator, which will create the next block according to its useful activity in the network according to predefined conditions, which can be formed according to the requirements of the system and will satisfy the individual needs of …

Simulation Analysis On Ballistic Deflection Of Projectile Obliquely Penetrating Into Concrete, Jianfeng Xue, Peihui Shen, Xiaoming Wang

Journal of System Simulation

Abstract: In order to study the trajectory deflection law of projectiles obliquely penetrating into concrete targets, based on the theory of rigid body kinematics and cavity expansion, the penetration motion differential equations of ogive-nosed projectile were established. The variation rules of trajectory offset and invasion depth were given in different initial conditions through the programming calculation and numerical simulation by MATALB and ANSYS-LYNA software. The calculation results agree well with experimental data. The results show that the influence of penetration depth and deflection angle increase with the oblique angle increasing. The influence of ballistic deflection decreases with the …

Context-Aware And Scale-Insensitive Temporal Repetition Counting, Huaidong Zhang, Xuemiao Xu, Guoqiang Han, Shengfeng He

Research Collection School Of Computing and Information Systems

Temporal repetition counting aims to estimate the number of cycles of a given repetitive action. Existing deep learning methods assume repetitive actions are performed in a fixed time-scale, which is invalid for the complex repetitive actions in real life. In this paper, we tailor a context-aware and scale-insensitive framework, to tackle the challenges in repetition counting caused by the unknown and diverse cycle-lengths. Our approach combines two key insights: (1) Cycle lengths from different actions are unpredictable that require large-scale searching, but, once a coarse cycle length is determined, the variety between repetitions can be overcome by regression. (2) Determining …

Disruptive Bussiness Model For Higher Education, Aya Rizik Abushawish

Theses

A business model is a plan for the successful operation of a business, identifying the source of revenue, the intended customers, value proposition, key resources, activities, and financing. It describes how organizations create, deliver and capture value. The recent developments in information and communications technology (ICT) disrupted most business models in different industries. The higher education industry is no exception, where it witnessed enormous integration of information and communications technologies. E-learning in higher education has made a tremendous shift in students’ life and raised the expectations of higher education service quality. The main objective of this thesis to develop a …

Towards Security And Privacy In Networked Medical Devices And Electronic Healthcare Systems, Isabel Jellen

Master's Theses

E-health is a growing eld which utilizes wireless sensor networks to enable access to effective and efficient healthcare services and provide patient monitoring to enable early detection and treatment of health conditions. Due to the proliferation of e-health systems, security and privacy have become critical issues in preventing data falsification, unauthorized access to the system, or eavesdropping on sensitive health data. Furthermore, due to the intrinsic limitations of many wireless medical devices, including low power and limited computational resources, security and device performance can be difficult to balance. Therefore, many current networked medical devices operate without basic security services such …

Writing For Each Other: Dynamic Quest Generation Using In Session Player Behaviors In Mmorpg, Sean Christopher Mendonca

Master's Theses

Role-playing games (RPGs) rely on interesting and varied experiences to maintain player attention. These experiences are often provided through quests, which give players tasks that are used to advance stories or events unfolding in the game. Traditional quests in video games require very specific conditions to be met, and for participating members to advance them by carrying out pre-defined actions. These types of quests are generated with perfect knowledge of the game world and are able to force desired behaviors out of the relevant non-player characters (NPCs). This becomes a major issue in massive multiplayer online (MMO) when other players …

Attacking Computer Vision Models Using Occlusion Analysis To Create Physically Robust Adversarial Images, Jacobsen Loh

Master's Theses

Self-driving cars rely on their sense of sight to function effectively in chaotic and uncontrolled environments. Thanks to recent developments in computer vision, specifically convolutional neural networks, autonomous vehicles have developed the ability to see at or above human-level capabilities, which in turn has allowed for rapid advances in self-driving cars. Unfortunately, much like humans being confused by simple optical illusions, convolutional neural networks are susceptible to simple adversarial inputs. As there is no overlap between the optical illusions that fool humans and the adversarial examples that threaten convolutional neural networks, little is understood as to why these adversarial examples …

Design And Test Of An Autonomy Monitoring Service To Detect Divergent Behaviors On Unmanned Aerial Systems, Loay Y. Almannaei

Theses and Dissertations

Operation of Unmanned Aerial Vehicles (UAV) support many critical missions in the United State Air Force (USAF). Monitoring abnormal behavior is one of many responsibilities of the operator during a mission. Some behaviors are hard to be detect by an operator, especially when flying one or more autonomous vehicles; as such, detections require a high level of attention and focus to flight parameters. In this research, a monitoring system and its algorithm are designed and tested for a target fixed-wing UAV. The Autonomy Monitoring Service (AMS) compares the real vehicle or simulated Vehicle with a similar simulated vehicle using Software …

Multi-Rate Simulation Based On Explicit-Implicit Hybrid Integration, Bingda Zhang, Chen Ming, Wang Xiao, Lanyu Wang

Journal of System Simulation

Abstract: A multi-rate simulation method based on explicit-implicit hybrid integration algorithm for the grid-connected photovoltaic system which included power electronic devices with a variety of switching frequency was put forward. Inductances and capacitances were used to divide the grid-connected photovoltaic system into subsystems. A multi-rate interface was put forward to satisfy the request of real time. The stability criterion of the multi-rate simulation algorithm was put forward. FPGA was used as a platform to build the digital grid-connected photovoltaic system. The hardware in loop test for DC/DC and DC/AC converter controllers was conducted on this platform to verify the accuracy …

Reachable Set Modeling Approach For Autonomous Vehicle's Dynamic Conflict Control, Cao Kai, Xiufang Liu, Yang Xu, Shen Peng

Journal of System Simulation

Abstract: Aiming at the problem of active safety control modeling for autonomous vehicles, a combined method using the formal modeling and the dynamic non-cooperative game theory was proposed for discussing a control strategy of trajectory tracking and collision avoidance under dynamic conflict condition between autonomous vehicles. And it was proposed to divide the system control into three modes: trajectory tracking, collision avoidance and switching between trajectory tracking and collision avoidance. Taking into account the complexity as a hybrid systems and the existence of the trajectory tracking error for autonomous vehicle, a modeling approach based on reachable set was proposed for …

Weighted Online Estimation Of Soc Based On Adaptive Battery Model, Haohao Sun, Tinglong Pan, Dinghui Wu

Journal of System Simulation

Abstract: Aiming at the problem that the traditional lithium battery model has poor adaptive ability in SOC estimation and the local estimation accuracy of the single SOC estimation algorithm is low, online identification of model parameters with Multi-Innovation Stochastic Gradient algorithm and method of weighted online estimation of SOC was proposed. The results of lithium-ion battery model parameters online identification updated in real time, realizing lithium-ion battery model adaptive. Aiming at the estimation of SOC, a method of weighted online estimation method based on the PI (proportion and integral) regulator's OCV combined with Ah (an integral method) was proposed. Weights …

Multi-Variable Modeling Research For Main-Steam Temperature Of Power Station Boiler Based On Improved Differential Evolution Algorithm, Li Qin, Zhang Hao, Daogang Peng, Yibo Guo, Nianlong Wang, Yuzhen Sun

Journal of System Simulation

Abstract: By analyzing the factors which affected the main-steam temperature, a multi-variable model was introduced to overcome the bad result of single variable cascade control. An improved differential evolution algorithm was proposed including mutation strategies random selection, crossover ratio and mutation ratio adaptive adjustment, which was used for closed-loop identification of main-steam multi-variable transfer function model. The principle and method how to obtain valid identification data from power plant distributed control system history database was introduced, and the data from some 1 000 MW coal-fired power plant was used to identify and verify the main-steam temperature multi-variable model, …

Study On Visual Function Of Human Computer Interaction In Parachuting Simulator, Han Liang, Gong Xuan, Jiangyun Wang, Yanghua Du

Journal of System Simulation

Abstract: The parachuting training system consists of software and hardware, to simulate the parachute training through head mounted display and operating equipment, combined with system modeling, kinematic computation, visual display and expert evaluation. Principle methods of head mounted display with human-computer interactive function and exploitation of Vega Prime inventive exploration on the information collection of viewpoint are conducted. It provides a real time training environment through the configuration of environmental effects, scene control, collision detection and driving information.

Stability Of Electrically Conducting Fluid Flow In Channel Under Magnetic Field, Dong Shuai, Lishuai Liu, Xuemin Ye

Journal of System Simulation

Abstract: The stability of conducting fluid flow in a channel under a vertical magnetic field was simulated by non-normal modal stability analysis. The perfect conductivity assumption of the channel wall was employed in the model, and its effect on the stability problem was considered. The results show that when the Hartmann number Ha is larger than 9, the two opposite Hartmann boundary layers are essentially independent of each other; however, when the Hartmann number Ha is smaller than 9, there are still residual interactions between the two opposite Hartmann boundary layers, which has influences on the stability of the flow. …

Research On Wavelength Routing Algorithm Based On Multi-Service In Satellite Optical Networks, Qingli Liu, Junfei Yao, Zhiguo Liu

Journal of System Simulation

Abstract: An optical wavelength routing algorithm for satellite networks based on multi-service was proposed, in order to solve the problem of low utilization rate of wavelengths, slow convergence and low efficiency of satellite optical networks. In this algorithm, it divided the area of the satellite network and updated the link in the area to improve the convergence speed of algorithm. Different services were assigned different wavelength sets to satisfy requirement of different service. According to the initial link weight, which included wavelength remain number and transmission delay, it changed link weight dynamically to achieve network load balancing and rational use …

Performance Analysis On Multiuser Untrusted Amplify-And-Forward Relay Networks, Deng Dan, Zhou Wen

Journal of System Simulation

Abstract: The effect of the untrusted relaying node was investigated on the secrecy outage probability (SOP) of amplify-and-forward (AF) relay networks in the presence of direct links and multiple users. In the considered system, the best user was selected according a certain criterion. It transmitted signals to the destination node with the aid of the untrusted relaying node. To reduce the useful information leakage, three selection criteria were proposed based on the channel state information of the direct and/or relaying link. The closed-form analytical SOP and the corresponding asymptotic expressions were derived. Computer simulation was conducted to validate the theoretical …

Forecasting Of Short-Term Power Load Of Secrpso-Svm Based On Data-Driven, Hairong Sun, Bixia Xie, Tian Yao, Zhuoqun Li

Journal of System Simulation

Abstract: For the parameter selection of support vector machine in modeling, a particle swarm optimization algorithm based on second-order oscillation and repulsion factor was proposed to optimize the parameter of SVM. The algorithm employed the nonlinear decreasing weight to balance the global and local search ability. Second-order oscillation factor could maintain the population diversity. The repulsion factor was introduced to make the swarm even distribution in search space, which could avoid local optimum. For the complex characteristics of nonlinearity, time-varying and multifactorial of electric power load, a support vector machine forecasting model based on data was proposed, and the influence …