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A social recommender system aims to provide useful suggestion to the user and prevent social overload problem. Most of the research efforts are spent on push high relevant item on top of the ranked list, using a weight ensemble approach. However, we argue the ``learned'' static fusion is not enough to specific contexts. In this paper, we develop a series(More)
Offering diversity in the output of a recommender system is an active research question. Most of the current approaches focus on Top-N optimization, which results in poor user insight and accuracy trade-off. However, little is known about how an interactive interface can help with this issue. This pilot study shows that a multidimensional visualization(More)
This note reports on the use of ICTs by a small nonprofit organization that serves LGBT youth. Our work centers on a reflective evaluation of the use of online communities for LGBT community through qualitative interviews with the organization. Perceived issues around ICT use in the organization were shaped by the blurred lines between professional and(More)
Network analysis has brought new perspectives in studying emergent structure in international relations. Prior work on networks of international relations has mostly relied on data derived from formal alliances and trade flows, which can hardly capture the rapidly evolving international relations due to globalization and recent advances in information(More)
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