Computer Sciences Commons^™

Csci 49378: Lecture 8: Cloud Systems And Infrastructures Ii, Bonan Liu, Nyc Tech-In-Residence Corps

Open Educational Resources

Lecture for the course: CSCI 49378: Intro to Distributed Systems and Cloud Computing - "Cloud Systems and Infrastructures II" (Week Eight) delivered at Hunter College in Spring 2020 by Bonan Liu as part of the Tech-in-Residence Corps program.

A Comprehensive Cybersecurity Policy For The United States Government According To Cyberattacks And Exploits In The 21st Century, Diana Hallisey

Honors Program Contracts

Adversaries launch cyberattacks or cyber-exploits with contrasting intentions and desired outcomes. A cyberattack is a malicious attempt by a state, third party, or individual to disrupt a computer’s network; whereas, a cyber-exploit is an action that uncovers and steals “confidential” information from a computer’s data. 1 Within this research paper, the main adversary of such cyberattacks and/or exploits will be the nation-state. The victims of these cyberattacks will range from multinational corporations, such as Sony, to nuclear programs in Iran. This essay will focus on four motivations behind such cyberattacks: (1) private sector hacking (the theft of intellectual property) (2) …

Book Genre Classification By Its Cover Using A Multi-View Learning Approach, Chandra Shakhar Kundu

Masters Theses & Specialist Projects

An interesting topic in the visual analysis is to determine the genre of a book by its cover. The book cover is the very first communication to the reader which shapes the reader’s expectation about the type of the book. Each book cover is carefully designed by the cover designers and typographers to convey the visual representation of its content. In this study, we explore several different deep learning approaches for predicting the genre from the cover image alone, such as MobileNet V1, MobileNet V2, ResNet50, Inception V2. Moreover, we add an extra modality by extracting text from the cover …

Inflammatory Bowel Disease Diagnosis Using Metagenomic Classification, Michael Riggle

Masters Theses & Specialist Projects

Inflammatory bowel disease (IBD) is a set of disorders that involve chronic inflammation of digestive tracts, e.g., Crohn's disease (CD) and ulcerative colitis (UC). Millions of people around the world have inflammatory bowel disease. However, it is still difficult to treat IBD due to its unknown cause. In fact, accurately diagnosing inflammatory bowel disease (IBD) can be very challenging too since some of IBD symptoms can mimic those of other conditions. In this work, we apply classification methods to help improve the success rate of diagnosis. We study four formulations of IBD classification: i) IBD and non-IBD (binary classification), ii) …

Finding Critical And Gradient-Flat Points Of Deep Neural Network Loss Functions, Charles Gearhart Frye '09

Doctoral Dissertations

Despite the fact that the loss functions of deep neural networks are highly non-convex, gradient-based optimization algorithms converge to approximately the same performance from many random initial points. This makes neural networks easy to train, which, combined with their high representational capacity and implicit and explicit regularization strategies, leads to machine-learned algorithms of high quality with reasonable computational cost in a wide variety of domains.

One thread of work has focused on explaining this phenomenon by numerically characterizing the local curvature at critical points of the loss function, where gradients are zero. Such studies have reported that the loss functions …

Searchbreaches.Me, Ajay Shah, Harshal Patel, Eric Gargiulo

Petersheim Academic Exposition

No abstract provided.

Autism Searches: A Modern Search Engine For Asd Related Topics, Joshua Schappel, Jonathan Simone Bar-Eli, Sachin Mahashabde, Jeremy Suero

Petersheim Academic Exposition

No abstract provided.

Data Science Meets Compliance, Christian Clarke

Petersheim Academic Exposition

No abstract provided.

Equations For Which Newton's Method Never Works: Pedagogical Examples, Leobardo Valera, Martine Ceberio, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

One of the most widely used methods for solving equations is the classical Newton's method. While this method often works -- and is used in computers for computations ranging from square root to division -- sometimes, this method does not work. Usual textbook examples describe situations when Newton's method works for some initial values but not for others. A natural question that students often ask is whether there exist functions for which Newton's method never works -- unless, of course, the initial approximation is already the desired solution. In this paper, we provide simple examples of such functions.

Why Class-D Audio Amplifiers Work Well: A Theoretical Explanation, Kevin Alvarez, Julio Urenda, Vladik Kreinovich

Departmental Technical Reports (CS)

Most current high-quality electronic audio systems use class-D audio amplifiers (D-amps, for short), in which a signal is represented by a sequence of pulses of fixed height, pulses whose duration at any given moment of time linearly depends on the amplitude of the input signal at this moment of time. In this paper, we explain the efficiency of this signal representation by showing that this representation is the least vulnerable to additive noise (that affect measuring the signal itself) and to measurement errors corresponding to measuring time.

How To Explain The Anchoring Formula In Behavioral Economics, Laxman Bokati, Vladik Kreinovich, Chon Van Le

Departmental Technical Reports (CS)

According to the traditional economics, the price that a person is willing to pay for an item should be uniquely determined by the value that this person will get from this item, it should not depend, e.g., on the asking price proposed by the seller. In reality, the price that a person is willing to pay does depend on the asking price; this is known as the anchoring effect. In this paper, we provide a natural justification for the empirical formula that describes this effect.

A "Fuzzy" Like Button Can Decrease Echo Chamber Effect, Olga Kosheleva, Vladik Kreinovich

Departmental Technical Reports (CS)

One of the big problems of the US political life is the echo chamber effect -- in spite of the abundance of materials on the web, many people only read materials confirming their own opinions. The resulting polarization often deadlocks the political situation and prevents politicians from reaching compromises needed to make needed changes. In this paper, we show, on a simplified model, that the echo chamber effect can be decreased if we simply replace the currently prevalent binary (yes-no) Like button on webpages with a more gradual ("fuzzy") one -- a button that will capture the relative degree of …

Devops: Lecture 1 - "Overview", Jeremy Andrews, Nyc Tech-In-Residence Corps

Open Educational Resources

Overview lecture for the "DevOps" course delivered at the City College of New York in Spring 2020 by Jeremy Andrews as part of the Tech-in-Residence Corps program.

Topics In Artifical Intelligence, Hunter Mcnichols, Nyc Tech-In-Residence Corps

Open Educational Resources

Syllabus for the course "CSC 59974: Special Topics in Artificial Intelligence" delivered at the City College of New York in Spring 2020 by Hunter McNichols as part of the Tech-in-Residence Corps program.

Smart Cities At Play: Technology And Emerging Forms Of Playfulness, Konstantinos Papangelis, Michael Saker, Catherine Jones

Articles

Editorial. No abstract is available.

Preparing For The Future: The Effects Of Financial Literacy On Financial Planning For Young Professionals, Tanay Singh

Senior Theses

Purpose – Many people between the age of 20 and 34 have not considered planning financially for the future in any significant capacity and in doing so, they limit their potential savings. The purpose of this study is to examine what financial expectations are for people in the early stages of their career and determine if improving financial literacy and revealing financial realities helps to produce more accurate or realistic expectations. Ultimately, the goal is to better prepare participants in the study for the working world and increased responsibilities outside of the college/university environment by getting them to start thinking …

Lablineup: An Intuitive Web Application For Queueing Help Requests In Academic Labs, Graham Mcdonald

Senior Theses

LabLineup is a start-up project designed to address the needs of large, lab-based classes, where teaching assistants (TAs) struggle to assist students in the order in which they request help. LabLineup is a lightweight web application that allows TAs and professors to accept requests for help in order. LabLineup allows professors to view the requests for a lab and see frequently asked questions that can be addressed en masse rather than individually. LabLineup also allows students to provide TA feedback. LabLineup addresses issues arising from requesting help in large, lab-based classes in the most efficient manner possible.

Weighted Random Search For Cnn Hyperparameter Optimization, Rǎzvan Andonie, Adrian-Cǎtǎlin Florea

All Faculty Scholarship for the College of the Sciences

Nearly all model algorithms used in machine learning use two different sets of parameters: the training parameters and the meta-parameters (hyperparameters). While the training parameters are learned during the training phase, the values of the hyperparameters have to be specified before learning starts. For a given dataset, we would like to find the optimal combination of hyperparameter values, in a reasonable amount of time. This is a challenging task because of its computational complexity. In previous work, we introduced the Weighted Random Search (WRS) method, a combination of Random Search (RS) and probabilistic greedy heuristic. In the current paper, we …

Digital Forensic Readiness: An Examination Of Law Enforcement Agencies In The State Of Maryland, James B. Mcnicholas Iii

Masters Theses & Doctoral Dissertations

Digital forensic readiness within the law enforcement community, especially at the local level, has gone mostly unexplored. As a result, a current lack of data exists that examines the digital forensic readiness of individual agencies, the possibility of proximity relationships, and correlations between readiness and backlogs. This quantitative, crosssectional research study sought to explore these issues by focusing on the state of Maryland. The study resulted in the creation of a digital forensic readiness scoring model that was then used to assign digital forensic readiness scores to thirty (30) of the one-hundred-forty-one (141) law enforcement agencies throughout Maryland. It was …

Byod-Insure: A Security Assessment Model For Enterprise Byod, Melva Ratchford

Masters Theses & Doctoral Dissertations

As organizations continue allowing employees to use their personal mobile devices to access the organizations’ networks and the corporate data, a phenomenon called ‘Bring Your Own Device’ or BYOD, proper security controls need to be adopted not only to secure the corporate data but also to protect the organizations against possible litigation problems. Until recently, current literature and research have been focused on specific areas or solutions regarding BYOD. The information associated with BYOD security issues in the areas of Management, IT, Users and Mobile Device Solutions is fragmented. This research is based on a need to provide a holistic …

E-Archive, Florian Hyseni

Theses and Dissertations

Pasi që jemi konsultuar me prof.Ramiz Hoxha dhe prof.Murat Retkoceri kemi vënë re që një sistem i cili do të kryente menaxhimin e të gjithë dokumentave në menyrë të automatizuar dhe digjitalizuar nuk ekziston në rajonin tonë. Sistem i cili do të përshpetoj të gjitha punët të cilët kanë të bëjnë me dokumenta fizike, dhe kemi vendosur që ta marim përsipër këtë sistem si projekt zhvillues për temë diplome un Festim Shabani dhe Florian Hyseni në mbikqyrje të prof.Ramiz Hoxha dhe prof.Murat Retkoceri. Si kërkesa bazike të sistemit tonë janë ruajtja dhe kërkimi i dokumenteve në menyrë të automatizuar dhe …

Analiza E Migrimit Të Data Warehouse Nga Ibm Datastage Në Odi 11g, Leutrim Sylkaj

Theses and Dissertations

Migrimi i të dhënave është procesi i zgjedhjes, përgatitjes, nxjerrjes, transformimit të të dhënave dhe transferimit të përhershëm të tyre nga një sistem/aplikacion kompjuterik në të cilin janë të ruajtura të dhënat në një sistem/aplikacion tjetër kompjuterik.

Në kompanitë e mëdha në ditët e sotme luan rol të rëndësishëm performanca dhe kualiteti i të dhënave gjatë procesit ETL(Ekstraktimit, Transformimit dhe Transferimit) të të dhënave në Data Warehouse.Pas hulumtimeve kemi arritur në përfundim që problem për disa nga kompanitë e mëdha të cilat si aplikacion bazë për transferimin e të dhënave nga burimet e ndryshme të të dhënave në Data Warehouse …

Iot Security With Blockchain Solution, Arber Murati

Theses and Dissertations

IoT është një teknologji me një potencial, impakt dhe rritje të jashtzakonshme. Sot, prodhimi momental i të dhënave nga paisjet teknologjike llogaritet të jetë rreth 2.5 quintillion bytes gjdo ditë. Për të pasur një kuptim më figurativ, 2.5 quntillion cent në monedha do të mbulonin sipërfaqën e globit për rreth 5 herë nëse token do ta përcaktonim si të sheshtë. Sipas hulumtimeve të fundit, deri në vitin 2025 diku rreth 41.6-miliard paisje IoT do të jenë online si dhe 30 % e të gjitha të dhënave do të duhen të procesohen në real-time. Hakerët shpesh fitojnë qasje në pajisje fundore …

Analiza Dhe Performanca E Rrjetit Kompjuterik Në Komunën E Lipjanit, Daut Azemi

Theses and Dissertations

Ne jetojmë në një botë të zhvillimit të hovshëm të teknologjisë, një botë në të cilën njerëzit janë të rrethuar nga pajisjet teknologjike, të cilat mund t’i hasim në çdo ambient kudo që ndodhemi, si për shembull: shtëpi, shkolla, lokale apo edhe nëpër ndërmarrje dhe biznese të ndryshme.

Sot “teknologjia po na magjeps”, ne kërkojmë që ajo të sjellë ndryshime në jetën tonë dhe sidomos në arsim, në ditët e sodit nuk ka shkollë, që nuk ka internet e në të cilën nuk ka nevojë për Rrjeta Kompjuterike brenda shkollës. Sot në Komunat e Kosovës kanë filluar të përdoren disa …

An Examination Of The Work Practices Of Crowdfarms, Yihong Wang, Konstantinos Papangelis, Michael Saker, Ioanna Lykourentzou, Vassilis-Javed Khan, Alan Chamberlain, Jonathan Grudin

Presentations and other scholarship

Crowdsourcing is a new value creation business model. Annual revenue of the Chinese market alone is hundreds of millions of dollars, yet few studies have focused on the practices of the Chinese crowdsourcing workforce, and those that do mainly focus on solo crowdworkers. We have extended our study of solo crowdworker practices to include crowdfarms, a relatively new entry to the gig economy: small companies that carry out crowdwork as a key part of their business. We report here on interviews of people who work in53 crowdfarms. We describe how crowdfarms procure jobs, carry out macrotasks and microtasks, manage their …

The Influence Of Peer And Parental Norms On First-Generation College Students’ Binge Drinking Trajectories, Graham T. Diguiseppi, Jordan P. Davis, Matthew K. Meisel, Melissa A. Clark, Mya L. Roberson, Miles Q. Ott, Nancy P. Barnett

Statistical and Data Sciences: Faculty Publications

Introduction: First-generation college students are those whose parents have not completed a four-year college degree. The current study addressed the lack of research on first-generation college students’ alcohol use by comparing the binge drinking trajectories of first-generation and continuing-generation students over their first three semesters. The dynamic influence of peer and parental social norms on students’ binge drinking frequencies were also examined. Methods: 1342 college students (n = 225 first-generation) at one private University completed online surveys. Group differences were examined at Time 1, and latent growth-curve models tested the association between first-generation status and social norms (peer descriptive, peer …

Devops: Architecting Your Infrastructure (Syllabus), Jeremy Andrews, Nyc Tech-In-Residence Corps

Open Educational Resources

Syllabus for the "DevOps" course delivered at the City College of New York in Spring 2020 by Jeremy Andrews as part of the Tech-in-Residence Corps program.

Cs 485 Computer Architecture, Danyang Zhang

Open Educational Resources

This course will present the basic concepts and technologies in computer organization and architecture. For example, logical devices and digital circuits, data representation, register transfer, central processor organization, microprogram control and organization, parallel computing. Although there could be multiple perspectives in studying computer architecture, our focus would be to better understand computer organization in order to design more efficient and reliable application software. The OER (Open Educational Resources) session of this course will have no textbook required (ZTC: Zero Textbook Cost), conduct lectures based on online resources and other open educational resources, and have students involved in active learning including …

Cybersecurity (Cs 3550): Lecture 11: Identity & Access Management, Michael Whiteman, Nyc Tech-In-Residence Corps

Open Educational Resources

Lecture for the course: CIS 3550: Cybersecurity - "11: Identity & Access Management" delivered at Baruch College in Spring 2020 by Michael Whiteman as part of the Tech-in-Residence Corps program.

Cis 4400 Data Warehousing - Lecture 2, Royce Kok, B Madhusudan, Nyc Tech-In-Residence Corps

Open Educational Resources

Lecture 2 for CIS 4400: Data Warehousing (Spring 2020)