Computational Models of Trust and Reputation in Online Social Networks Sana Hamdi
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Reputation for Quality
Econometrica, Vol. 81, No. 6 (November, 2013), 2381–2462 REPUTATION FOR QUALITY BY SIMON BOARD AND MORITZ MEYER-TER-VEHN1 We propose a model of firm reputation in which a firm can invest or disinvest in product quality and the firm’s reputation is defined as the market’s belief about this quality. We analyze the relationship between a firm’s reputation and its investment incentives, and derive implications for reputational dynamics. Reputational incentives depend on the specification of market learning. When con- sumers learn about quality through perfect good news signals, incentives decrease in reputation and there is a unique work–shirk equilibrium with ergodic dynamics. When learning is through perfect bad news signals, incentives increase in reputation and there is a continuum of shirk–work equilibria with path-dependent dynamics. For a class of imperfect Poisson learning processes and low investment costs, we show that there ex- ists a work–shirk equilibrium with ergodic dynamics. For a subclass of these learning processes, any equilibrium must feature working at all low and intermediate levels of reputation and shirking at the top. KEYWORDS: Reputation, monitoring processes, firm dynamics, investment. 1. INTRODUCTION INMOSTINDUSTRIES, firms can invest in the quality of their products through human capital investment, research and development, and organizational change. Often these investments and the resulting quality are imperfectly ob- servable, giving rise to a moral hazard problem. The firm then invests so as to build a reputation for quality, justifying premium prices in the future. This pa- per analyzes the investment incentives in such a market, examining how they depend on the current reputation of the firm and the information structure of market observations. -
Reputation As Information
Reputation as Information: A Multilevel Approach to Reputation in Organizations DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Erin Elizabeth Coyne Graduate Program in Labor and Human Resources The Ohio State University 2010 Dissertation Committee: Steffanie L. Wilk, Advisor David B. Greenberger Roy J. Lewicki Copyright by Erin E. Coyne 2010 Abstract Research on reputation has taken a variety of disparate approaches that has created conceptual confusion. This dissertation attempts to disentangle and clarify the reputation construct by elucidating the definition, introducing a theoretical framing, establishing a new level of analysis and investigating interactive effects. A multilevel approach of studying reputation is introduced and serves as a guide for the dissertation in directing the focus on the three main purposes of this study. First, the theoretical foundations of similarity among multiple levels of reputation are established through the development of a “Reputation as Information” framework. Second, a new proximal contextual construct of unit level of reputation is introduced and explored. As such, this study describes the antecedents and outcomes associated with the more proximal level of unit reputation. Third, cross-level effects of the “big fish in the little pond” and the “little fish in the big pond” (personal and unit level reputation) on individual outcomes are investigated. The procedures used to study these issues included gathering organizational data in a field study using employee surveys, supervisor surveys, and obtaining archival information from the company. These data were analyzed using multiple regression, hierarchical linear modeling, and multiple mediation models. -
Interaction-Based Reputation Model in Online Social Networks
Interaction-based Reputation Model in Online Social Networks Izzat Alsmadi1, Dianxiang Xu2 and Jin-Hee Cho3 1Department of Computer Science, University of New Haven, West Haven, CT, U.S.A. 2Department of Computer Science, Boise State University, Boise, ID, U.S.A. 3US Army Research Laboratory, Adelphi, MD, U.S.A. Keywords: Online Social Networks, Reputation, User Attributes, Privacy, Information Credibility. Abstract: Due to the proliferation of using various online social media, individual users put their privacy at risk by posting and exchanging enormous amounts of messages or activities with other users. This causes a seri- ous concern about leaking private information out to malevolent entities without users’ consent. This work proposes a reputation model in order to achieve efficient and effective privacy preservation in which a user’s reputation score can be used to set the level of privacy and accordingly to determine the level of visibility for all messages or activities posted by the users. We derive a user’s reputation based on both individual and relational characteristics in online social network environments. We demonstrate how the proposed reputation model can be used for automatic privacy assessment and accordingly visibility setting for messages / activities created by a user. 1 INTRODUCTION likes, tags, posts, comments) to calculate the degree of friendship between two entities (Jones et al., 2013). As the use of online social network (OSN) appli- An individual user’s reputation can be determined cations becomes more and more popular than ever, based on a variety of aspects of the user’s attributes. many people share their daily lives by posting stories, One of the important attributes is whether the user comments, videos, and/or pictures, which may ex- feeds quality information such as correct, accurate, pose their private / personal information (Mansfield- or credible information. -
Review & Reputation Management Platforms
REVIEW & REPUTATION MANAGEMENT PLATFORMS BUYER’S GUIDE 2019 Edition Underwritten, in part by: Buyers guide created in collaboration with TrustYou CONCEPTUALIZATION, DESIGN, DATA AND COPY EDITING: Hotel Tech Report CONTENT & RESEARCH Benjamin Jost Valerie Castillo Katharina Sickora TABLE OF CONTENTS WHAT IS REPUTATION MANAGAMENT SOFTWARE 2 Overview 3 Key benefits and reasons to adopt 4 What hoteliers are saying 6 Recent trends 8 BUYING ADVICE AND RECOMMENDATIONS 11 Critical features 12 Top rated providers by hoteliers (bonus: Side-by-side comparisons) 13 Integrations to consider 17 Key questions to ask vendors during your research 19 HOW MUCH TO BUDGET AND WHAT TO EXPECT 21 Pricing models, budgeting and implementation 22 Key success metrics 23 Success stories, news and articles 25 WHAT IS reputation management software? OVERVIEW Reputation and review management solutions aggregate all forms of guest feedback from across the web to help hoteliers read, respond, and analyze Gthe feedback in an efficient manner. 95% of guests read reviews prior to making a booking decision, and after price, reviews are the most important decision variable when booking a hotel. With reputation and review management solutions, hotels can positively impact the reviews and ratings that travelers are seeing when making a booking decision. Hotel Tech Report | 2019 Reputation Management Software Buyer’s Guide 3 WHAT are THE key benefits OF reputation management software? OVERVIEW 1 2 3 DRIVE DIRECT IMPROVE GUEST INCREASE BOOKINGS SATISFACTION REVENUE Online reviews influences millions Review collection allows hotels to Reputation management of booking decisions on hundreds boost their online review scores creates insights from your of OTAs and meta-search sites, and gather valuable customer reviews that benchmark your while encouraging travelers to insights in order to continuously hotel versus competitors and book directly on your hotel improve the guest experience. -
Competitive Strategy: Week 11 Reputation and Cooperation Why Is
' $ Competitive Strategy: Week 11 Reputation and Cooperation Simon Board & % Eco380, Competitive Strategy 1 ' $ Why is Reputation Useful? ² Cooperation between competitors { Prices. { New product design, standards, market development, lobbying, advertising. ² Complementors. { New products. ² Suppliers { Reputation not to hold up suppliers. ² Buyers { Reputation for high quality product ² Entrants { Reputation for toughness to ¯ght entry. & % Eco380, Competitive Strategy 2 ' $ Tacit Cooperation over Prices ² Tacit cooperation { Cooperation without explicit agreements. { Agreements not enforceable by court. ² Key ingredients { Shared interest as basis for cooperation. { Mechanism for punishment. { Mechanism for recovering from mistakes. ² Warning: price ¯xing is illegal! { Cooperation on R&D or advertising is not. & % Eco380, Competitive Strategy 3 ' $ Cases ² American Airlines circa 1990 { After deregulation there were frequent price wars { Interpretation: AA was trying to teaching rivals how to cooperate. { But bankrupt rivals had no interest in playing along. ² 1955 Automobile Price War { 45% more cars were produced in 1955 than 1954 or 1956. ² Joint Executive Committee { Classic railroad cartel from 1880s { Involved in price war 1/3 of the time & % Eco380, Competitive Strategy 4 ' $ Punishment ² Is punishment severe enough to deter defection? { Price war may need to be very long. { AA couldn't punish bankrupt airlines su±ciently. ² Is punishment credible? { Punishment is costly, but must be optimal after defection. { Idea: get punished for not punishing. { Problem: must avoid renegotiation. ² When to punish? { Is deviation deliberate or by mistake? { Threshold rule: market share cannot rise above 20%. { Ambiguous rule: prob of price war rises with market share. & % Eco380, Competitive Strategy 5 ' $ Recovery ² How do you recover from mistakes? ² Could punish for ¯xed time ² Make punishment ¯t the crime { Deeper and longer price war for larger transgression. -
A Survey of Trust and Reputation Systems for Online Service Provision
A Survey of Trust and Reputation Systems for Online Service Provision Audun Jøsang a;1;4 Roslan Ismail b;2 Colin Boyd a;3 aInformation Security Research Centre Queensland University of Technology Brisbane, Australia bCollege of Information Technology Universiti Tenaga Nasional (UNITEN) Malaysia Abstract Trust and reputation systems represent a significant trend in decision support for Internet mediated service provision. The basic idea is to let parties rate each other, for example after the completion of a transaction, and use the aggregated ratings about a given party to derive a trust or reputation score, which can assist other parties in deciding whether or not to transact with that party in the future. A natural side effect is that it also provides an incentive for good behaviour, and therefore tends to have a positive effect on market quality. Reputation systems can be called collaborative sanctioning systems to reflect their collaborative nature, and are related to collaborative filtering systems. Reputation systems are already being used in successful commercial online applications. There is also a rapidly growing literature around trust and reputation systems, but unfortunately this activity is not very coherent. The purpose of this article is to give an overview of existing and proposed systems that can be used to derive measures of trust and reputation for Internet transac- tions, to analyse the current trends and developments in this area, and to propose a research agenda for trust and reputation systems. Key words: Trust, reputation, transitivity, collaboration, e-commerce, security, decision 1 Corresponding author. QUT, Brisbane Qld 4001, Australia. Email: [email protected] 2 Email: [email protected] 3 Email: [email protected] 4 The work reported in this paper has been funded in part by the Co-operative Research Centre for Enterprise Distributed Systems Technology (DSTC) through the Australian Fed- eral Government's CRC Programme (Department of Education, Science, & Training). -
CHARACTER EVIDENCE QUICK REFERENCE Reputation – Opinion – Specific Instances of Conduct - Habit
CHARACTER EVIDENCE QUICK REFERENCE reputation – opinion – specific instances of conduct - habit Character of the Defendant – 404(a)(1) (pages 14-29) (pages 4-8) * Test: Proper Purpose + Relevance + Time * Test: Relevance (to the crime charged) + Similarity + 403 balancing; rule of inclusion + 403 balancing; rule of exclusion * Put basis for ruling in record (including * Defendant gets to go first w/ "good 403 balancing analysis) character" evidence – reputation or opinion only (see rule 405) * D has burden to keep 404(b) evidence out ^ State can cross-examine as to specific instances of bad character * proper purposes: motive, opportunity, knowledge/intent, preparation/m.o., common * Law-abidingness ALWAYS relevant scheme/plan, identity, absence of mistake/ accident/entrapment, res gestae (anything * General good character not relevant but propensity) * Defendant's character is substantive ^ Credibility is never proper – 608(b), not 404(b) evidence of innocence – entitled to instruction if requested * time: remoteness is less significant when used to show intent, motive, m.o., * D's evidence of self-defense does not knowledge, or lack of mistake/accident - automatically put character at issue * remoteness more significant when common scheme or plan (seven year rule) ^ unless continuous course of conduct, or D is gone * similarity: particularized, but not Character of the victim – 404(a)(2) (pages 8-11) necessarily bizarre ^ the more similar acts are, the less problematic time is * Test: Relevance (to the crime charged) + 403 balancing; -
What Is Reputation and Why Is It Important?
WHAT IS REPUTATION AND WHY IS IT IMPORTANT? There is an old proverb that says character is the story you write about yourself, a good reputation for the treatment of staff reputation is the story others write about you - let us hope “reputation” is a reflection of compared with other employers. Although that “character” written. reputation may be an intangible concept, a good one will demonstrably increase A corporate/company/association For any organisation, the achievement of worth and provide sustained competitive identity is constructed by how internal its objectives is the main reason for its exis- advantages. and external perceptions are evaluated tence and, with a good reputation among in relation to each other, a sort of its stakeholders, achieving those objectives BUILDING A GOOD REPUTATION simultaneous mirroring process. An will be easily done. Clients will prefer to deal So it seems logical to work actively not only organisation considers and promotes itself with you instead of others and they in turn to build a good reputation but also to assess as a certain type, stakeholders monitor can influence other potential customers. any existing or potential threats to that this self-classification and if it matches Suppliers will be more inclined to trust your reputation and to take actions to avoid or their expectations it generates a positive organisation if you have a reputation for fair mitigate them. Whether or not we are pre- reputation. dealing. A potential employee will be more pared to manage these reputational risks is likely to prefer your organisation if you have another question. -
Words Without Pictures
WORDS WITHOUT PICTURES NOVEMBER 2007– FEBRUARY 2009 Los Angeles County Museum of Art CONTENTS INTRODUCTION Charlotte Cotton, Alex Klein 1 NOVEMBER 2007 / ESSAY Qualifying Photography as Art, or, Is Photography All It Can Be? Christopher Bedford 4 NOVEMBER 2007 / DISCUSSION FORUM Charlotte Cotton, Arthur Ou, Phillip Prodger, Alex Klein, Nicholas Grider, Ken Abbott, Colin Westerbeck 12 NOVEMBER 2007 / PANEL DISCUSSION Is Photography Really Art? Arthur Ou, Michael Queenland, Mark Wyse 27 JANUARY 2008 / ESSAY Online Photographic Thinking Jason Evans 40 JANUARY 2008 / DISCUSSION FORUM Amir Zaki, Nicholas Grider, David Campany, David Weiner, Lester Pleasant, Penelope Umbrico 48 FEBRUARY 2008 / ESSAY foRm Kevin Moore 62 FEBRUARY 2008 / DISCUSSION FORUM Carter Mull, Charlotte Cotton, Alex Klein 73 MARCH 2008 / ESSAY Too Drunk to Fuck (On the Anxiety of Photography) Mark Wyse 84 MARCH 2008 / DISCUSSION FORUM Bennett Simpson, Charlie White, Ken Abbott 95 MARCH 2008 / PANEL DISCUSSION Too Early Too Late Miranda Lichtenstein, Carter Mull, Amir Zaki 103 APRIL 2008 / ESSAY Remembering and Forgetting Conceptual Art Alex Klein 120 APRIL 2008 / DISCUSSION FORUM Shannon Ebner, Phil Chang 131 APRIL 2008 / PANEL DISCUSSION Remembering and Forgetting Conceptual Art Sarah Charlesworth, John Divola, Shannon Ebner 138 MAY 2008 / ESSAY Who Cares About Books? Darius Himes 156 MAY 2008 / DISCUSSION FORUM Jason Fulford, Siri Kaur, Chris Balaschak 168 CONTENTS JUNE 2008 / ESSAY Minor Threat Charlie White 178 JUNE 2008 / DISCUSSION FORUM William E. Jones, Catherine -
Reputation and Its Management in Education
Reputation Management for Education A Review of the Academic & Professional Literature David Roberts 2009 © 2009 The Knowledge Partnership [email protected] www.theknowledgepartnership.com Foreword Belatedly, reputation management is now widely acknowledged by education marketers as being a more appropriate concept for developing a positive image for a higher or further education institute than the process of “branding”. We might debate why it has taken so long for this particular penny to drop, since marketers claim to be able to understand the culture of their target audiences and to be able to position concepts and products accordingly. It seems that where branding and reputation is concerned, the resistance of large swathes of the academic community to “marketing” can be laid at the door of those who continue to over-sell the value and scope of branding. Reading articles and listening to platform speakers you could be forgiven for mistakenly believing that branding had become synonymous with marketing – as though all the other factors that lead users of a service to choose, refer and renew their relationship with providers are relegated to, or subsumed within, “branding”. Maybe the problem is largely one of definition, but branding, as a managed process needs to be firmly put back in its box. It is a valuable and necessary tool, but nothing more. Since 2001 I have been researching reputation in education markets with various stakeholder groups and with those who manage and market education. My research and professional experience consistently finds that students, alumni, academics and vice- chancellors all feel more comfortable with “reputation” as a concept. -
Latin Derivatives Dictionary
Dedication: 3/15/05 I dedicate this collection to my friends Orville and Evelyn Brynelson and my parents George and Marion Greenwald. I especially thank James Steckel, Barbara Zbikowski, Gustavo Betancourt, and Joshua Ellis, colleagues and computer experts extraordinaire, for their invaluable assistance. Kathy Hart, MUHS librarian, was most helpful in suggesting sources. I further thank Gaylan DuBose, Ed Long, Hugh Himwich, Susan Schearer, Gardy Warren, and Kaye Warren for their encouragement and advice. My former students and now Classics professors Daniel Curley and Anthony Hollingsworth also deserve mention for their advice, assistance, and friendship. My student Michael Kocorowski encouraged and provoked me into beginning this dictionary. Certamen players Michael Fleisch, James Ruel, Jeff Tudor, and Ryan Thom were inspirations. Sue Smith provided advice. James Radtke, James Beaudoin, Richard Hallberg, Sylvester Kreilein, and James Wilkinson assisted with words from modern foreign languages. Without the advice of these and many others this dictionary could not have been compiled. Lastly I thank all my colleagues and students at Marquette University High School who have made my teaching career a joy. Basic sources: American College Dictionary (ACD) American Heritage Dictionary of the English Language (AHD) Oxford Dictionary of English Etymology (ODEE) Oxford English Dictionary (OCD) Webster’s International Dictionary (eds. 2, 3) (W2, W3) Liddell and Scott (LS) Lewis and Short (LS) Oxford Latin Dictionary (OLD) Schaffer: Greek Derivative Dictionary, Latin Derivative Dictionary In addition many other sources were consulted; numerous etymology texts and readers were helpful. Zeno’s Word Frequency guide assisted in determining the relative importance of words. However, all judgments (and errors) are finally mine. -
Computational Models of Trust and Reputation: Agents, Evolutionary Games, and Social Networks
Computational Models of Trust and Reputation: Agents, Evolutionary Games, and Social Networks by Lik Mui B.S., M.Eng., Electrical Engineering and Computer Science Massachusetts Institute of Technology, 1995 M. Phil., Management Studies, Department of Social Studies University of Oxford, 1997 Submitted to the Department of Electrical Engineering and Computer Science in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Electrical Engineering and Computer Science at the MASSACHUSETTS INSTITUTE OF TECHNOLOGY December 20, 2002 Copyright 2002 Massachusetts Institute of Technology. All rights reserved. Signature of Author: ____________________________________________________________ Department of Electrical Engineering and Computer Science December 20, 2002 Certified by: ___________________________________________________________________ Peter Szolovits Professor of Electrical Engineering and Computer Science Thesis Supervisor Accepted by: __________________________________________________________________ Arthur C. Smith Professor of Electrical Engineering and Computer Science Chairman, Department Committee on Graduate Students Computational Models of Trust and Reputation: Agents, Evolutionary Games, and Social Networks by Lik Mui Submitted to the Department of Electrical Engineering and Computer Science on December 20, 2002 in partial fulfillment of the requirements for the Degree of Doctor of Philosophy in Electrical Engineering and Computer Science Abstract Many recent studies of trust and reputation are made