Jie Jennifer Zhang

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<b>Introduction</b> While product review systems that collect and disseminate opinions about products from recent buyers (Table 1) are valuable forms of word-of-mouth communication, evidence suggests that they are overwhelmingly positive. Kadet notes that most products receive almost five stars. Chevalier and Mayzlin also show that book reviews on Amazon(More)
C ompanies have increasingly advocated social media technologies to transform businesses and improve organizational performance. This study scrutinizes the predictive relationships between social media and firm equity value, the relative effects of social media metrics compared with conventional online behavioral metrics, and the dynamics of these(More)
Consumer buzz in the form of user-generated reviews, recommendations and blogs signals consumer attitude and advocacy can influence firm value. Web traffic also affects brand awareness and customer acquisition, and is a predictor of the performance of a firm's stock in the market. The information systems (IS) and accounting literature have treated buzz and(More)
Laser forming (LF) is a non-traditional forming process that does not require hard tooling or external forces and, hence, may dramatically increase process flexibility and reduce the cost of forming. While extensive progress has been made in analyzing and predicting the deformation given a set of process parameters, few attempts have been made to determine(More)
Four laser scanning schemes for tube bending, including point-source circumferential scanning, pulsed line-source axial procession, and line-source axial scanning without and with water cooling are investigated in numerical simulation. The coupled thermo-mechanical model established using the finite element method is validated and applied to predict the(More)
High-intensity laser beams can be used to heat and bend metal plates, but the mechanisms of the laser forming (LF) process are not well understood or precisely controllable. The objective of the National Institute of Standards and Technology sponsored project " Laser Forming of Complex Structures " is to develop technologies for a controllable, repeatable(More)
— Balancing the amount of advertising and content on a web page affects the profitability of the web site and its attractiveness to potential visitors. This tradeoff is modelled as a control problem for a web site manager who is maximizing the net present value of cash flows by controlling the amount of advertising and content displayed on the web site over(More)