Given the importance of online reviews, as shown by extensive research, we address problem predicting helpfulness product reviews developing a comprehensive research model guided theoretical foundations signaling and social influence theories. We use review order time interval to incorporate moderating effects time-related variable on reviewer’s valuation products related details they provide. ...

Business intelligence and analytics are playing an increasingly prominent role in many organizations. User-generated content and online social media open up new opportunities for businesses that can exploit and innovate with this new source of Web 2.0 data. In this paper, we concentrate on one important application – predicting the helpfulness of online customer reviews. We frame it as a regres...

The emergence of Web 2.0 technology provides more opportunities to foster online communication and sharing in an e-learning environment. The purpose of this study was to develop a Web 2.0 annotation system, MyNote, based on the Web 2.0 core concepts which emphasize ease of access and active sharing and then to gain an understanding about people’s perceptions of MyNote from a usability perspecti...

How do comments on student writing from peers compare to those from subject-matter experts? This study examined the types of comments that reviewers produce as well as their perceived helpfulness. Comments on classmates’ papers were collected from two undergraduate and one graduate-level psychology course. The undergraduate papers in one of the courses were also commented on by an independent p...

BACKGROUND Interactions between depressed persons and persons within their social network are often characterized by misunderstanding and unsuccessful social support attempts. These interpersonal problems could be fostered by discrepancies between depressed and never-depressed persons' illness representations of depression and/or discrepancies in the perceived helpfulness of supportive behavior...

In the past few years, sentiment analysis and opinion mining becomes a popular and important task. These studies all assume that their opinion resources are real and trustful. However, they may encounter the faked opinion or opinion spam problem. In this paper, we study this issue in the context of our product review mining system. On product review site, people may write faked reviews, called ...

A critical aspect of open systems such as the Internet is the interactions amongst the component agents of the system. Often this interaction is organised around social principles, in that one agent may request the help of another, and in turn may make a commitment to assist another when requested. In this paper we investigate two measures of the social responsibility of an agent known as relia...

I is surprising that the prevailing performance taxonomy for scientists (star versus nonstar) focuses only on individual output and ignores social behavior, because innovation is often characterized as a communal process. To develop a deeper understanding of the mechanisms by which scientists influence the productivity of others, I expand the traditional taxonomy of scientists that focuses sole...

Interpersonal synchrony increases cooperation among adults, children, and infants. We tested whether increased infant helpfulness transfers to individuals uninvolved in the movement, but shown to be affiliates of a synchronously moving partner. Initially, 14-month-old infants (N = 48) watched a live skit by Experimenters 1 and 2 that either demonstrated affiliation or individuality. Infants in ...