Of Networks, Interactions Agents: An Approach for Social Network Analysis

NRC publication: Ye

Forming buyer coalition scheme with connection of a coalition leader

Despite the variety of existing theoretical models for buyers' coalition in the current e-commerce literature, no existing coalition scheme explicitly takes into consideration issues related to the leadership attributes of the coalition. By adopting a design science research methodology and utilizing theoretical groundings of the Social Networking and Game theory, the current article provides algorithmic design of a buyer coalition scheme with explicit focus given to the 'betweenness', 'centrality', and 'closeness' attributes of the coalition leader. Detailed steps for forming the proposed coalition are provided along with related algorithmic designs and explanations for each step. The execution of the proposed algorithmic design and its effectiveness compared to the situation where no leadership attributes is explicitly considered, are demonstrated by using a scenario and associated simulation programs. Results from the simulation programs confirm that the proposed model provides additional discounts for the buyers regardless the number of buyers within the coalition, and with no additional costs to the seller. It is also expected that sellers will benefit from the proposed model as a result of reduced transaction costs associated with the proposed scheme. © 2012 Universidad de Talca - Chile

Unraveling the Influence of the Interplay Between Mobile Phones’ and Users’ Awareness on the User Experience (UX) of Using Mobile Phones

Part 1: PracticeInternational audienceThe influence of the interplay between mobile phones’ and users’ awareness on User Experience (UX) of using mobile phone remains unclear. To fill that gap, a one-week logging study with 32 participants and a follow-up survey questionnaire were conducted. The usage of mobile phone applications are self-reported found to be both initiated by the self-awareness of the user and dependent on contextual factors. Active awareness of mobile phones deteriorated easily with decreasing computing resources due to increasing usage and thus triggered passive awareness in the user. We advance a conceptual model and discuss the implications for designing mobile context-aware systems and services. The outcome of this study lays the groundwork for comprehending the dynamics of UX for mobile context-aware systems and services