Successful commerce relies heavily upon the reputations that the different parties acquire through their dealings with each other. We consider a community whose members provide services as well as referrals for services to each other. The search for a service is initiated when a special need or opportunity (e.g., a solicitation from a business) arises. Personal agents assist users in evaluating...

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...

Review Opinion Diversification (RevOpiD) 2017 is a shared task which is held in International Joint Conference on Natural Language Processing (IJCNLP). The shared task aims at selecting top-k reviews, as a summary, from a set of re-views. There are three subtasks in RevOpiD: helpfulness ranking, representativeness ranking, and exhaustive coverage ranking. This year, our team submitted runs by t...

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...

This paper examines the effects of review arousal on perceived helpfulness of online reviews, and on consumers’ emotional responses elicited by the reviews. Drawing on emotion theories in psychology and neuroscience, we focus on four emotions – anger, anxiety, excitement, and enjoyment that are common in the context of online reviews. The effects of the four emotions embedded in online reviews ...

The online product review has been advocated as an important determinant of a consumer’s purchase decision. Although prior research has been instrumental in articulating the benefits of the online product review, there remains a dearth of investigation on what kind of product review will be perceived to be helpful to a consumer. Through two sequential experiments, we investigate the endogenous ...

OBJECTIVE The purpose of this study was to identify practitioner qualities and traits that clients with brain injury see as important. METHOD An opportunistic sample of 51 participants with brain injury was interviewed about perceptions of service access and effectiveness. An interview guide was used to gather data for this phenomenological qualitative study. Four interviewers individually co...

Online shopping through e-commerce has gained widespread popularity among consumers, revolutionizing the operations of businesses in global market. This paper examines benefits e-commerce, such as its convenience and ease comparing prices products, well difficulty customers may encounter when selecting optimal product. To overcome this difficulty, suggests a real-time online consumer behavior p...