Hsiang-Chun Hsu

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Although Software-Defined Networking (SDN) enables flexible network resource allocations for traffic engineering, current literature mostly focuses on unicast communications. Compared to traffic engineering for multiple unicast flows, multicast traffic engineering for multiple trees is very challenging not only because minimizing the bandwidth consumption(More)
Viral marketing, a marketing strategy that leverages the influence power in intimate relationship, has become more prevalent due to the popularity of online social networking services in recent years. Consumers are more likely to make a purchase based on social media referrals. Since marketing through social media and traditional channels may target on(More)
A proper vertex coloring of a graph G is a partition {A1, A2, . . . , Ak} of the vertex set V (G) into stable sets. For a graph G with a positive vertexweight c : V (G) → (0,∞), denoted by (G, c), let χ(G, c) be the minimum value of ∑k i=1 maxv∈Ai c(v) over all proper vertex coloring {A1, A2, . . . , Ak} of G and χ(G, c) the minimum value of k for a proper(More)
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