摘要 :
The study details why and how product reviews from consumer opinion platforms affect individual users' brand buying behavior. Drawing on social theories, the authors predict that consumers' perceptions of other consumers' product ...
展开
The study details why and how product reviews from consumer opinion platforms affect individual users' brand buying behavior. Drawing on social theories, the authors predict that consumers' perceptions of other consumers' product reviews affect brand buying intentions through two intervening variables: product- and brand-related attitudes. Moreover, the authors investigate whether these relationships are contingent on user type (i.e., active posters or passive lurkers). The empirical results support a multiple mediation framework in which product- and brand attitudes mediate the effects of consumer product reviews on individual brand buying intentions. In addition, consumer product reviews appear to more strongly affect the brand-related attitudes of posters than lurkers. Lurkers, who make up the majority of opinion platform users, are much less influenced by the opinions of others than posters. Encouraging variations in poster- and lurker rates may be an effective means for companies to manage and control consumer-to-consumer communication.
收起
摘要 :
Arguments are reviewed in support of the hypothesis that ET would more likely send physical probes to surveil our Solar System and communicate with Earth than to communicate from afar with interstellar radio, infrared or laser bea...
展开
Arguments are reviewed in support of the hypothesis that ET would more likely send physical probes to surveil our Solar System and communicate with Earth than to communicate from afar with interstellar radio, infrared or laser beacons. Although the standard SETI practice of targeting individual stars or galaxies with powerful telescopes might detect a foreground local probe by serendipity, an intentional hunt for those probes would entail a different set of strategies, most notably sacrificing sensitivity (needed to detect a very faint and very distant signal) in exchange for a widened field-of-view (because a local signal can be reasonably hypothesized to be relatively bright). This paper suggests a number of strategies to detect local ET probes.
收起
摘要 :
Land-based beacons, information laden probes sent into our solar system, and more distal communication nodes have each been proposed as the most likely means by which we might be contacted by ET. Each method, considered in isolati...
展开
Land-based beacons, information laden probes sent into our solar system, and more distal communication nodes have each been proposed as the most likely means by which we might be contacted by ET. Each method, considered in isolation from ET's point of view, has limitations and flaws. An overarching galactic communication architecture that tethers together probes, nodes, and land bases is proposed as a better overall solution. From this more efficient construct flows several conclusions: (a) Earth has been thoroughly surveilled, (b) Earth will be contacted in due course, (c) seti beyond half the distance that Earth's EM has reached (～35-50 LY) is futile, and (d) the very quiescence of the galaxy paradoxically implies that that Drake's N = many, and that there is a system of galactic governance. Search strategies are proposed to detect the described probe-node-land based communications network.
收起
摘要 :
Nowadays, social networks provide users an interactive platform to create and share heterogeneous
content for a lot of different purposes (eg, to comment events and facts, and express and
share personal opinions on specific topi...
展开
Nowadays, social networks provide users an interactive platform to create and share heterogeneous
content for a lot of different purposes (eg, to comment events and facts, and express and
share personal opinions on specific topics), allowing millions of individuals to create online profiles
and share personal information with vast networks known and sometimes also unknown
people. Knowledge about users, content, and relationships in a social network may be used for
an adversary attack of some victims easily. Although a number of works have been done for data
privacy preservation on relational data, they cannot be applied in social networks and in general
for big data analytics. In this paper, we first propose a novel data model that integrates and
combines information on users belonging to 1 or more heterogeneous online social networks,
together with the content that is generated, shared, and used within the related environments,
using an hypergraph data structure; then we implemented the most diffused centrality measures
and also introduced a new centrality measure—based on the concept of “neighborhood”
among users—that may be efficiently applied for a number of data privacy issues, such as lurkers
and neighborhood attack prevention, especially in “interest-based” social networks. Some
experiments using the Yelp dataset are discussed.
收起
摘要 :
The majority of participants in online communities are lurkers, who browse discussions without actively contributing to them. Their lack of active participation threatens the sustainability of online communities. This review provi...
展开
The majority of participants in online communities are lurkers, who browse discussions without actively contributing to them. Their lack of active participation threatens the sustainability of online communities. This review provides an understanding as to why the majority of participants in online communities remain silent. It specifies a variety of factors that come into play when people determine their level of participation: individual differences: need for gratification, personality dispositions, time available and self-efficacy; social-group processes: such as socialization, type of community, tendency toward social loafing, responses to delurking and the quality of responses; technological setting factors: technical design flaws, privacy and safety of the online group. All are factors that are liable to influence involvement in online communities. (C) 2015 Elsevier Ltd. All rights reserved.
收起
摘要 :
Purpose - In the early days of online communities, researchers tended to view lurkers negatively and considered them illegitimate and peripheral members. However, the tide of opinion about lurkers has gradually become more positiv...
展开
Purpose - In the early days of online communities, researchers tended to view lurkers negatively and considered them illegitimate and peripheral members. However, the tide of opinion about lurkers has gradually become more positive. To take a broad view, lurkers should be included in the knowledge sharing context because while they may not share knowledge directly, they are still stakeholders in online communities who benefit from the knowledge shared. This study aims to review the literature from a knowledge sharing perspective to provide a comprehensive understanding of lurkers in online communities and identify additional reasons behind lurking behavior. Design/methodology/approach - Previous studies that examined reasons behind lurking behavior in the literature were reviewed. Findings - A four-dimensional model is provided, which categorizes the additional reasons for lurking into four domains: individual, social, organizational and technological. Originality/value - The model serves as a roadmap for future researchers in examining lurkers and lurking behavior. Lurkers should be redefined. De-lurking strategies were suggested following the reasons for lurking behavior in the four-dimensional model, but de-lurking strategies were not recommended in all circumstances. An increase in active lurkers is another option to bring more value to online communities.
收起
摘要 :
PurposeEnterprise social media (ESM) platforms are rapidly diffusing in the business context because they can bring substantial benefits to companies by enhancing their knowledge management (KM) processes. However, such benefits m...
展开
PurposeEnterprise social media (ESM) platforms are rapidly diffusing in the business context because they can bring substantial benefits to companies by enhancing their knowledge management (KM) processes. However, such benefits materialize only if active employee participation is ensured. Therefore, it is crucial to understand how individual employees use an ESM platform to assist their knowledge-related activities. This paper contributes to this topic by proposing a classification of ESM users based on two dimensions: frequency and type (active or passive) of use.Design/methodology/approachThe paper presents the results of a survey of 262 employees of an international engineering service company that has adopted an ESM platform to support its KM processes. Statistical methods (e.g. ANOVA, Tukey's b) were applied to verify the usefulness of the proposed typology and identify the main aspects that characterize the different user groups.FindingsThe survey results confirm the existence of different types of ESM users and provide the empirical basis for developing a bi-dimensional classification from which four user groups were derived and characterized: frequent contributors, sporadic contributors, frequent lurkers and sporadic lurkers.Research limitations/implicationsThe main limitation is that only one company in one sector with specific knowledge needs and capabilities was investigated.Practical implicationsThe study provides useful suggestions for how to promote the use of an ESM and particularly for how to encourage less frequent and less active users to increase their participation in a platform.Originality/valueThe paper contributes to a better understanding of how employees approach ESM by identifying factors that characterize different user groups.
收起
摘要 :
Online communities are becoming an accepted part of the lives of Internet users, although participation in these communities is dependent on the types of people that form them. Some of the online community's members do not partici...
展开
Online communities are becoming an accepted part of the lives of Internet users, although participation in these communities is dependent on the types of people that form them. Some of the online community's members do not participate, people referred to as lurkers, whereas others who have been in the community for a long time, referred to as elders, participate regularly and support others. Understanding what drives these individuals and how they chose whether or not to participate will lead to online communities that thrive. This paper proposes a conceptual framework to describe what drives such individuals to carry out actions such as posting messages and adding content (level 1), the cognitions they use to determine whether or not to take such actions (level 2) and the means by which they go about carrying out the action in the environment (level 3). Finally, the framework is applied to the problem of encouraging members to participate by discussing the methods by which people can be persuaded to participate by changing the way they interpret their desires and their environment.
收起
摘要 :
Based on commitment theory and organization support theory, this study explores the effects of perceived online community support on member commitment and how these effects are moderated by members' social relations in terms of po...
展开
Based on commitment theory and organization support theory, this study explores the effects of perceived online community support on member commitment and how these effects are moderated by members' social relations in terms of posters and lurkers. The results indicate that perceived online community support had different effects on commitment between posters and lurkers. Trust was found to positively moderate the effect of perceived freedom of expression on commitment among lurkers; on the contrary, the norm of reciprocity was found to negatively moderate the effect of perceived freedom of expression on commitment among lurkers. The theoretical and practical implications are also discussed. (C) 2016 Elsevier B.V. All rights reserved.
收起
原文获取