Understanding and Improving Continuous Experimentation : From A/B Testing to Continuous Software Optimization

Controlled experiments (i.e. A/B tests) are used by many companies with user-intensive products to improve their software with user data. Some companies adopt an experiment-driven approach to software development with continuous experimentation (CE). With CE, every user-affecting software change is evaluated in an experiment and specialized roles seek out opportunities to experiment with functionality. The goal of the thesis is to describe current practice and support CE in industry. The main contributions are threefold. First, a review of the CE literature on: infrastructure and processes, the problem-solution pairs applied in industry practice, and the benefits and challenges of the practice. Second, a multi-case study with 12 companies to analyze how experimentation is used and why some companies fail to fully realize the benefits of CE. A theory for Factors Affecting Continuous Experimentation (FACE) is constructed to realize this goal. Finally, a toolkit called Constraint Oriented Multi-variate Bandit Optimization (COMBO) is developed for supporting automated experimentation with many variables simultaneously, live in a production environment.The research in the thesis is conducted under the design science paradigm using empirical research methods, with simulation experiments of tool proposals and a multi-case study on company usage of CE. Other research methods include systematic literature review and theory building.From FACE we derive three factors that explain CE utility: (1) investments in data infrastructure, (2) user problem complexity, and (3) incentive structures for experimentation. Guidelines are provided on how to strive towards state-of-the-art CE based on company factors. All three factors are relevant for companies wanting to use CE, in particular, for those companies wanting to apply algorithms such as those in COMBO to support personalization of software to users' context in a process of continuous optimization

Toward an Expanded Conceptualization of Transformative Learning: A Case Study of International Service-Learning in Nicaragua

This dissertation research stems from both practical and theoretical problems related to understanding the nature of transformation in international service-learning. In terms of the practical problems, the primary motivation for conducting this study had to do with pedagogical challenges associated with fostering adult college students\u27 transformational learning as the coordinator and instructor of Tompkins Cortland Community College\u27s international service learning program (TC3-NICA)1 over the past eight years. A review of theoretical and empirical literature in the fields of adult learning, service-learning, and intercultural learning did not adequately address the concerns that ( had about the significant and problematic nature of change TC3-NICA students were experiencing as a result of their participation in service in Nicaragua

Fake news diffusion on digital channels: An analysis of attack strategies, responsibilities, and corporate responses

In recent years, the phenomenon of fake news has aroused a growing interest in the academic debate because of its capability to easily spread among digital channels, such as social media platforms, and reach and deceive an increasingly large target of digital users. In this scenario, fake news threatens the credibility of organizations, their products and services, the trust relationship between organizations and consumers, as well as the organizations internal community. Nowadays, organizations are subject to the risk of losing the control of their corporate communication strategies due to phenomena such as the spread of fake news. Hence, although in academic literature there is a growing interest about the impact of fake news, scholars agree that more research is needed to provide a better understanding of the fake news phenomenon. Indeed, hereto no study has focused on how fake news attacks the corporate reputation with reference to the different phases of the fake news life cycle. The aim of this PhD thesis is threefold: (1) to investigate how fake news, during its life cycle, attacks corporate reputation; (2) to identify the key actors involved in the stemming process of fake news and their role; (3) to identify the more effective response strategies of organizations threatened by fake news. To achieve the aim of this exploratory research, a mixed-method approach was adopted. In particular, a qualitative content analysis was conducted on a database of 454 fake news headlines; four longitudinal case studies were analyzed; a survey on a sample of Italian citizens was conducted to investigate their perception and the more effective response strategies of the organizations attacked by fake news. Findings of this research identify two types of borrowed credibility on which fake news leverages and two thematic clusters that characterize them. By crossing these dimensions, four different ideal types of fake news attack strategies emerged. Moreover, the results of this research highlight the weakness of the role of fact checkers, which are unable to access the filter bubbles in which fake news rapidly spreads – fact checkers and fake news branch out on two parallel channels, without crossing each other, and reaching different targets, by representing an ethical challenge for digital platforms such as social media. Finally, the findings of the survey show that it is a widespread and prevailing opinion between Italians that openness and transparency should be the key values of the response strategies. As a matter of fact, the clear answer from the survey respondents is that the best response strategy for the organization attacked by fake news is to be available in providing timely information

Tracking the Temporal-Evolution of Supernova Bubbles in Numerical Simulations

The study of low-dimensional, noisy manifolds embedded in a higher dimensional space has been extremely useful in many applications, from the chemical analysis of multi-phase flows to simulations of galactic mergers. Building a probabilistic model of the manifolds has helped in describing their essential properties and how they vary in space. However, when the manifold is evolving through time, a joint spatio-temporal modelling is needed, in order to fully comprehend its nature. We propose a first-order Markovian process that propagates the spatial probabilistic model of a manifold at fixed time, to its adjacent temporal stages. The proposed methodology is demonstrated using a particle simulation of an interacting dwarf galaxy to describe the evolution of a cavity generated by a Supernov

McNair Research Journal - Summer 2015

Journal articles based on research conducted by undergraduate students in the McNair Scholars Program Table of Contents Biography of Dr. Ronald E. McNair Statements: Dr. Neal J. Smatresk, UNLV President Dr. Juanita P. Fain, Vice President of Student Affairs Dr. William W. Sullivan, Associate Vice President for Retention and Outreach Mr. Keith Rogers, Deputy Executive Director of the Center for Academic Enrichment and Outreach McNair Scholars Institute Staf

Green marketing

У навчальному посібнику системно розглядаються теоретичні та практичні аспекти впровадження концепції зеленого маркетингу в практику діяльності підприємств. Посібник рекомендується для роботи викладачів і студентів економічних спеціальностей у вузах, для студентів бізнес-шкіл, керівників підприємств, працівників відділів маркетингу та екологічних підрозділів, а також для інших фахівців, чия діяльність пов'язана з зеленим маркетингом.В учебном пособии системно рассматриваются теоретические и практические аспекты внедрения концепции зеленого маркетинга в практику деятельности предприятий. Пособие предназначается для преподавателей и студентов экономических специальностей в вузах, для студентов бизнес-школ, руководителей предприятий, работников отделов маркетинга и экологических подразделений, а также для других специалистов, чья деятельность связана с зеленым маркетингом.The teaching manual systematically covers theoretical and practical aspects of introduction of green marketing concept in practice of activity of the enterprises. Recommended for teachers and students of economic majors at higher education establishments as well as for students of business schools, heads of the enterprises and employees of marketing and environmental divisions, for other experts whose activity deals with green marketing

Newman v. Google

3rd amended complain

Matters of Concern: A Critical Investigation of Bioplastics, 3D Printing, and the Maker Movement

This research proposes practice-based models for examining the perceptions of 3D printing as entrepreneurial, accessible and environmentally sustainable. The dissertation and practice-based research argue that these popular perceptions limit the potential of 3D printing, and maker culture more generally, because of their overemphasis of human agency in maker culture. The research contends that such perceptions have arisen because of misunderstandings about the agency of the materials and technologies engaged in 3D printing networks, the failure of maker culture to make 3D printing accessible to an audience beyond the typical readership of maker magazines, and the failure to account for the significant environmental dangers of the plastic filament that construct 3D printed objects. Tracing maker culture’s initial commitment to anti-consumerist principles that no longer prevail – DIY culture of the 1960s and 70s and hacker culture of the 1980s and 90s – the practice of 3D printing has instead become a black box. In this research, I define black boxes as objects, systems, or processes whose inner workings become hidden because of their own success and so, black boxes are typically understood by their inputs and outputs. To open up the black box of 3D printing, the research reflects on a series of material experiments with 3D printing that are informed by critical making, co-design and speculative critical design within an Actor-Network Theory (ANT) framework. Through the ANT concept of generalised symmetry the research argues for the importance of ascribing agency to the more-than human actants in the maker practice networks of 3D printing, and provides documentation of the critical making project titled Dissolvable Furniture as a model. An investigation of contemporary challenges to participating in maker culture, framed within the ANT concept of translation, was conducted through online co-design workshops on 3D printing and identified barriers to inclusive maker culture. Subsequent to the workshops further investigation of the agency of 3D printing materials, titled Co-created Ceramic Objects, provides a model for the disposal of PLA through incineration in a kiln. The final exploration of a model for un-black boxing 3D printing, specifically addressing claims that PLA is environmentally sustainable, demanded a provocation that unsettled complacency about the dangers of plastic. Based on extensive research on the waste management practices of plastics the research documents the practice-based model of the speculative critical design titled Biorecycling Machine. These projects address the long-term implications of entrepreneurial, accessible and environmentally sustainable practices of maker culture and interrupt the individualism at the core of much debate in maker movement groups by reframing maker practices as material–semiotic constellations of interactions of human and more-than-human actants that are constantly in flux. The research concludes with recommendations for areas requiring further study, including the need for better protection of the intellectual property of makers, the necessity of creating more accessible maker cultures, and the urgent need to address the environmental dangers of 3D printing materials