Computer Sciences Commons^™

Why Beta Priors: Invariance-Based Explanation, Olga Kosheleva, Vladik Kreinovich, Kittawit Autchariyapanitkul

Departmental Technical Reports (CS)

In the Bayesian approach, to describe a prior distribution on the set [0,1] of all possible probability values, typically, a Beta distribution is used. The fact that there have been many successful applications of this idea seems to indicate that there must be a fundamental reason for selecting this particular family of distributions. In this paper, we show that the selection of this family can indeed be explained if we make reasonable invariance requirements.

How To Gauge A Combination Of Uncertainties Of Different Type: General Foundations, Ingo Neumann, Vladik Kreinovich, Thach N. Nguyen

Departmental Technical Reports (CS)

In many practical situations, for some components of the uncertainty (e.g., of the measurement error) we know the corresponding probability distribution, while for other components, we know only upper bound on the corresponding values. To decide which of the algorithms or techniques leads to less uncertainty, we need to be able to gauge the combined uncertainty by a single numerical value -- so that we can select the algorithm for which this values is the best. There exist several techniques for gauging the combination of interval and probabilistic uncertainty. In this paper, we consider the problem of gauging the combination …

Chatbots: Conversation Killers Or Makers?, Jing Jiang

MITB Thought Leadership Series

Whether you’re aware of it or not, the chances are you’ve been chatting to robots of late. While these bots are faceless and unseen, don’t be fooled into thinking they aren’t there. In fact, chatbots, have been around since the 1960s at least, but with the progress in artificial intelligence, cloud computing and voice recognition, they’ve received both a functionality and a popularity boost. From the cosmetic to the life-changing, nowadays, chatbots can do anything from helping a person lose weight to assisting refugees applying for asylum.

Lightweight And Efficient Neural Natural Language Processing With Quaternion Networks, Yi Tay, Aston Zhang, Anh Tuan Luu, Jinfeng Rao, Shuai Zhang, Shuohang Wang, Jie Fu, Siu Cheung Hui

SCIS Student Publications

Many state-of-the-art neural models for NLP are heavily parameterized and thus memory inefficient. This paper proposes a series of lightweight and memory efficient neural architectures for a potpourri of natural language processing (NLP) tasks. To this end, our models exploit computation using Quaternion algebra and hypercomplex spaces, enabling not only expressive inter-component interactions but also significantly (75%) reduced parameter size due to lesser degrees of freedom in the Hamilton product. We propose Quaternion variants of models, giving rise to new architectures such as the Quaternion attention Model and Quaternion Transformer. Extensive experiments on a battery of NLP tasks demonstrates the …

Reduction Of Order: Analytical Solution Of Film Formation In The Electrostatic Rotary Bell Sprayer, Mark Doerre, Nelson Akafuah

Institute of Research for Technology Development Faculty Publications

This brief paper explains the slight differences in governing equations for a fluid film in a spinning cone, and the mechanism that reduces the order of a solution. Spinning cones with a centrally supplied fluid that spreads over its inner surface as a thin film have been the subject of interest for many years. Though often cast as a mathematical analysis, understanding this process is important, especially in the application of automotive painting. The analysis consists of a system of equations obtained from the Navier–Stokes equations along with simple boundary conditions that describe radial and tangential momentum conservation. Solutions to …

Simple And Effective Curriculum Pointer-Generator Networks For Reading Comprehension Over Long Narratives, Yi Tay, Shuohang Wang, Anh Tuan Luu, Jie Fu, Minh C. Phan, Xingdi Yuan, Jinfeng Rao, Siu Cheung Hui, Aston Zhang

SCIS Student Publications

This paper tackles the problem of reading comprehension over long narratives where documents easily span over thousands of tokens. We propose a curriculum learning (CL) based Pointer-Generator framework for reading/sampling over large documents, enabling diverse training of the neural model based on the notion of alternating contextual difficulty. This can be interpreted as a form of domain randomization and/or generative pretraining during training. To this end, the usage of the Pointer-Generator softens the requirement of having the answer within the context, enabling us to construct diverse training samples for learning. Additionally, we propose a new Introspective Alignment Layer (IAL), which …

How To Apply Software Engineering Testing Methodologies To Education, Francisco Zapata, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

Testing is a very important part of quality control in education. To decide how to best test, it makes sense to use experience of other areas where testing is important, where there is a large amount of experimental data comparing the efficiency of different testing strategies. One such area is software engineering. The experience of software engineering shows that the most efficient approach to testing is to test thoroughly on every single stage of the project. In regards to teaching, the resulting recommendation means making testing as frequent as possible, preferably giving weekly quizzes. At first glance, this may seem …

An Empirical Study Of User Support Tools In Open Source Software, Arif Raza, Luiz Fernando Capretz, Shuib Basri

Electrical and Computer Engineering Publications

End users’ positive response is essential for the success of any software. This is true for both commercial and Open Source Software (OSS). OSS is popular not only because of its availability, which is usually free but due to the user support it provides, generally through public platforms. The study model of this research establishes a relationship between OSS user support and available support tools. To conduct this research, we used a dataset of 100 OSS projects in different categories and examined five user support tools provided by different OSS projects. The results show that project trackers, user mailing lists, …

How To Reconcile Maximum Entropy Approach With Intuition: E.G., Should Interval Uncertainty Be Represented By A Uniform Distribution, Vladik Kreinovich, Olga Kosheleva, Songsak Sriboonchitta

Departmental Technical Reports (CS)

In many practical situations, we only have partial information about the probabilities; this means that there are several different probability distributions which are consistent with our knowledge. In such cases, if we want to select one of these distributions, it makes sense not to pretend that we have a small amount of uncertainty -- and thus, it makes sense to select a distribution with the largest possible value of uncertainty. A natural measure of uncertainty of a probability distribution is its entropy. So, this means that out of all probability distributions consistent with our knowledge, we select the one whose …

Why The Obvious Necessary Condition Is (Often) Also Sufficient (Toncas): An Explanation Of The Phenomenon, Julio C. Urenda, Vladik Kreinovich

Departmental Technical Reports (CS)

In many graph-related problems, an obvious necessary condition is often also sufficient. This phenomenon is so ubiquitous that it was even named TONCAS, after the first letters of the phrase describing this phenomenon. In this paper, we provide a possible explanation for this phenomenon.

Why Lasso, En, And Clot: Invariance-Based Explanation, Hamza Alkhatib, Ingo Neumann, Vladik Kreinovich, Chon Van Le

Departmental Technical Reports (CS)

In many practical situations, observations and measurement results are consistent with many different models -- i.e., the corresponding problem is ill-posed. In such situations, a reasonable idea is to take into account that the values of the corresponding parameters should not be too large; this idea is known as regularization. Several different regularization techniques have been proposed; empirically the most successful are LASSO method, when we bound the sum of absolute values of the parameters, and EN and CLOT methods in which this sum is combined with the sum of the squares. In this paper, we explain the empirical success …

Improving 3d Printed Prosthetics With Sensors And Motors, Rachel Zarin

Honors Projects

A 3D printed hand and arm prosthetic was created from the idea of adding bionic elements while keeping the cost low. It was designed based on existing models, desired functions, and materials available. A tilt sensor keeps the hand level, two motors move the wrist in two different directions, a limit switch signals the fingers to open and close, and another motor helps open and close the fingers. All sensors and motors were built on a circuit board, programmed using an Arduino, and powered by a battery. Other supporting materials include metal brackets, screws, guitar strings, elastic bands, small clamps, …

Measuring Influence On Linear Dynamical Networks, Jaekob Chenina

Theses and Dissertations

Influence has been studied across many different domains including sociology, statistics, marketing, network theory, psychology, social media, politics, and web search. In each of these domains, being able to measure and rank various degrees of influence has useful applications. For example, measuring influence in web search allows internet users to discover useful content more quickly. However, many of these algorithms measure influence across networks and graphs that are mathematically static. This project explores influence measurement within the context of linear time invariant (LTI) systems. While dynamical networks do have mathematical models for quantifying influence on a node-to-node basis, to the …

Zhvillimi I Aplikacionit Për Menaxhimin E Punëve, Tanju Şerif

Theses and Dissertations

Që nga fillimi i historisë së njerëzimit, njeriu është ballafaquar me menaxhimin e kohës. Gjuetia, kujdesi për familje, mbrojtja nga rreziqet e jashtme, nga fatkeqësitë natyrore, dhe përgatitjet për stinët e ftohta, kanë qenë nga sfidat e para të njerëzimit qe kanë kërkuar menaxhimin e kohës. Me zhvillimin e teknologjisë dhe socializimin e njerëzve ka lindur nevoja për të menaxhuar kohen më saktë. Kështu kanë filluar të përdoren mjete të ndryshme ndihmuese për menaxhimin e kohës. Më parë janë përdorur shkrimet, shënimet, fletoret, mjete të ndryshme që ndihmojnë kujtesën, kalendarët dhe së fundmi teknologjinë informative. Krahas menaxhimit individual, rendësi te …

Sistemet Operative Për Mobile, Me Fokus Në Android, Albulena Dabiqaj

Theses and Dissertations

Ky punim diplome u frymëzua nga evoluimi dhe prania gjithnjë e më e madhe e pajisjeve mobile në jetën tonë. Çdo ditë e më tepër po vetëdijesohemi se sa janë të rëndësishme këto pajisje mobile, dhe njëkohësisht edhe lind pyetja sa jemi të sigurt duke i përdorur ato?

Si sisteme operative mobile për këtë punim janë trajtuar:

Android – sistemi operativ i krijuar nga kompania Google mirëpo që është krejtësisht “Open Source”, pra që çdokush mund ta përdorë dhe modifikojë.

IOS – sistem operativ që është krijuar dhe është në pronësi të kompanisë Apple.

Qëllimi i ketij punimi akademik është …

Aplikimi I Rrjetave Kompjuterike Në Sistemet E Informacionit Në Shëndetësi, Arbian Shkodra

Theses and Dissertations

Ky seminar paraqet një çasje origjinale që të organizoj një rrjetë kompjuterike që lejon spitalet të menaxhoj dhe ketë akses në baza të të dhënave në distancë dhe në formë të sigurtë. Arkitektura, bazuar në konceptet SONA (Service Oriented Network Architecture) është dizajnuar duke marrur në konsideratë disa nga karakteristikat më të rëndësishme si: shkallëzueshmëria, integriteti me rrjete kompjuterike të tjera, çasje në distancë dhe në formë të sigurtë, lehtësim të përdorimit dhe siguri totale të të dhënave. Kjo u arrit duke përdorur dy forma të çasjes. E para çasje mirret me sigurinë e brendshme, duke u implementuar përmes lejimit …

Augmented Reality, Ardit Nurçaj

Theses and Dissertations

Implementimi i teknologjive AR në aplikacione po rezulton me popullaritet të përmasave globale e që çdo ditë e më shumë po ndikon tek njerëzit si në jetën personale ashtu edhe në atë profesionale. Ky hulumtim ka për synim shtjellimin e disa aspekteve bazike mbi AR dhe konceptet kryesore të kësaj teknologjie, duke ja filluar prej historikut të AR ku filloi çdo gjë e deri tek zhvillimet e viteve të fundit, pastaj do të jepen disa definicione se çka është kjo teknologji, do të shtjellohen disa koncepte se si funksionon kjo teknologji, pajisjet mbi të cilat ekzekutohet, disa nga aplikimet ku …

Mvc Si Model Në Jsp Dhe Asp.Net, Donjet Salihi

Theses and Dissertations

Ky punim diplome ka për qellim krahasimin e implementimit të Model-View-Controller (MVC) si model dizajnues që kohëve të fundit është duke u praktikuar në shumë organizata për zhvillimin e aplikacioneve në gjuhë të ndryshmë programuese. Ne do të fokusohemi kryesisht në dy nga platformat më të fuqishme në treg ASP.NET dhe JSP. Gjatë shfletimit të këtij punimi, fillimisht do njoftoheni me konceptet e modelit MVC, historiku i zhvillimit si model dizajnues dhe cilat nga platformat ekzistuese kanë punuar drejt ofrimit të një ambienti të përshtatshëm zhvillues për implementimin e MVC-së. Pasi të këmi marrë një ide të qartë rreth modelit …

Krahasimi I Asp.Net Kontrollave Me Telerik Asp.Net Kontrollat Ne Rapid Application Devolopment, Dijar Kadriu

Theses and Dissertations

Siç e dimë, sa i përket marrjes së informacionit, sa më shpejtë që informohemi, aq më të suksesshëm jemi dhe kur bëhet fjalë për kërkim të informacionit, atëherë gjithmonë na shkon mendja tek interneti apo më saktë në shfletues. Prandaj, në ditët e sotme gjithçka që ndërtohet, çdo kompani , çdo person, sot ka një vlerë në internet, qoftë si dhënës i informacionit apo si marrës i informacionit. Vet themelimi i web-it ishte arsye që komunikimi dhe marrja e informacioni të bëhet sa më shpejtë dhe sa më të saktë.

Ekzistojnë shumë metodologji të ndryshme që sot përdoren për ndërtimin …

Dobësitë Në Sigurinë E Rrjetave Lokale Pa Tela-(Wireless), Armir Bejtullahu

Theses and Dissertations

Ky studim ka të bëjë me çështjet e sigurisë së rrjetës lokale Wireless LAN (WLAN) si në aspektin e konfigurimit gjithashtu dhe në atë të enkriptimit. Në këtë temë është bërë një paraqitje e përgjithme e rrjetave lokale Wireless, pastaj punën time e kam bazuar në qështjen kryesore, në analizimin e hollësishëm të dobësive të rrjetave Wireless në aspektin e sigurisë, të cilat i kam dëshmuar edhe me eksperimente dhe testime të ndryshme të thyerjes së sigurisë së rrjetave me metodat të cilat do të shtjellohen dhe definohen.

Qëllimi kryesor i kësaj teme është që të performohen disa lloje të …

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 …

Promotional Campaigns In The Era Of Social Platforms, Noor E. Abu-El-Rub

Computer Science ETDs

The rise of social media has facilitated the diffusion of information to more easily reach millions of users. While some users connect with friends and organically share information and opinions on social media, others have exploited these platforms to gain influence and profit through promotional campaigns and advertising. The existence of promotional campaigns contributes to the spread of misleading information, spam, and fake news. Thus, these campaigns affect the trustworthiness and reliability of social media and render it as a crowd advertising platform. This dissertation studies the existence of promotional campaigns in social media and explores different ways users and …

An Introduction To Declarative Programming In Clips And Prolog, Jack L. Watkin, Adam C. Volk, Saverio Perugini

Computer Science Faculty Publications

We provide a brief introduction to CLIPS—a declarative/logic programming language for implementing expert systems—and PROLOG—a declarative/logic programming language based on first-order, predicate calculus. Unlike imperative languages in which the programmer specifies how to compute a solution to a problem, in a declarative language, the programmer specifies what they what to find, and the system uses a search strategy built into the language. We also briefly discuss applications of CLIPS and PROLOG.

Eugene: Towards Deep Intelligence As A Service, Shuochao Yao, Yifan Hao, Yiran Zhao, Ailing Piao, Huajie Shao, Dongxin Liu, Shengzhong Liu, Shaohan Hu, Dulanga Weerakoon, Kasthuri Jayarajah, Archan Misra, Tarek Abdelzaher

Research Collection School Of Computing and Information Systems

The paper discusses an emerging suite of machine intelligence services that are of increasing importance in the highly instrumented world of the Internet of Things (IoT). The suite, called Eugene, would offer a form of intelligent behavior (based on deep neural networks) to otherwise simple embedded devices; the clients of the service. These devices would benefit from service resources to learn from data and to perform intelligent inference, classification, prediction, and estimation tasks that they are too limited to carry out on their own. The paper discusses the taxonomy of such services and the state of implementation, as well as …

User Privacy Leakage In Location-Based Mobile Ad Services, Qicheng Lin

School of Computing: Dissertations, Theses, and Student Research

The online advertising ecosystem leverages its massive data collection capability to learn the properties of users for targeted ad deliveries. Many Android app developers include ad libraries in their apps as a way of monetization. These ad libraries contain advertisements from the sell-side platforms, which collect an extensive set of sensitive information to provide more relevant advertisements for their customers. Existing efforts have investigated the increasingly pervasive private data collection of mobile ad networks over time. However, there lacks a measurement study to evaluate the scale of privacy leakage of ad networks across different geographical areas. In this work, we …

A Machine Learning Approach To Predicting Community Engagement On Social Media During Disasters, Adel Alshehri

USF Tampa Graduate Theses and Dissertations

The use of social media is expanding significantly and can serve a variety of purposes. Over the last few years, users of social media have played an increasing role in the dissemination of emergency and disaster information. It is becoming more common for affected populations and other stakeholders to turn to Twitter to gather information about a crisis when decisions need to be made, and action is taken. However, social media platforms, especially on Twitter, presents some drawbacks when it comes to gathering information during disasters. These drawbacks include information overload, messages are written in an informal format, the presence …

On Continuous Images Of Ultra-Arcs, Paul Bankston

Mathematics, Statistics and Computer Science Faculty Research and Publications

Any space homeomorphic to one of the standard subcontinua of the Stone-Čech remainder of the real half-line is called an ultra-arc. Alternatively, an ultra-arc may be viewed as an ultracopower of the real unit interval via a free ultrafilter on a countable set. It is known that any continuum of weight is a continuous image of any ultra-arc; in this paper we address the problem of which continua are continuous images under special maps. Here are some of the results we present.

Searching Activity Trajectories With Semantics, Li-Hua Yin, Huiwen Liu

PhD Student’s Publications Collection

With the widespread use of smart phones and mobile Internet, social network users have generated massive geo-tagged tweets, photos and videos to form lots of informative trajectories which reveal not only their spatio-temporal dynamics, but also their activities in the physical world. Existing spatial trajectory query studies mainly focus on analyzing the spatio-temporal properties of the users’ trajectories, while leaving the understanding of their activities largely untouched. In this paper, we incorporate the semantics of the activity information embedded in trajectories into query modelling and processing, with the aim of providing end users more informative and meaningful results. To this …

Developing 5gl Concepts From User Interactions, David Stuckless Meyer

Masters Theses

In the fulfilling of the contracts generated in Test Driven Development, a developer could be said to act as a constraint solver, similar to those used by a 5th Generation Language(5GL). This thesis presents the hypothesis that 5GL linguistic mechanics, such as facts, rules and goals, will be emergent in the communications of developer pairs performing Test Driven Development, validating that 5GL syntax is congruent with the ways that practitioners communicate. Along the way, nomenclatures and linguistic patterns may be observed that could inform the design of future 5GL languages.

Design And Pilot Testing Of Subgoal Labeled Worked Examples For Five Core Concepts In Cs1, Lauren E. Margulieux, Briana B. Morrison, Adrienne Decker

Computer Science Faculty Publications

Subgoal learning has improved student problem-solving performance in programming, but it has been tested for only oneto-two hours of instruction at a time. Our work pioneers implementing subgoal learning throughout an entire introductory programming course. In this paper we discuss the protocol that we used to identify subgoals for core programming procedures, present the subgoal labels created for the course, and outline the subgoal-labeled instructional materials that were designed for a Java-based course. To examine the effect of subgoal labeled materials on student performance in the course, we compared quiz and exam grades between students who learned using subgoal labels …