• Publications
  • Influence
Classifying text messages for the haiti earthquake
TLDR
We developed a reusable information technology infrastructure, called Enhanced Messaging for the Emergency Response Sector (EMERSE), which classifies and aggregates tweets and text messages about the Haiti disaster relief so that non-governmental organizations, relief workers, people in Haiti, and their friends and families can easily access them. Expand
  • 167
  • 17
  • PDF
Analyzing the Resilience of Complex Supply Network Topologies Against Random and Targeted Disruptions
TLDR
We study the resilience of supply networks against disruptions and provide insights on how to construct a resilient supply network from the perspective of complex network topologies. Expand
  • 178
  • 12
  • PDF
An LDA-based Community Structure Discovery Approach for Large-Scale Social Networks
TLDR
This paper describes an LDA(latent Dirichlet Allocation)-based hierarchical Bayesian algorithm, namely SSN-LDA (simple social network LDA) for discovering community structures in large-scale networks. Expand
  • 130
  • 12
  • PDF
Cyber SA: Situational Awareness for Cyber Defense
TLDR
We propose a tentative research agenda for solving the cyber situational awareness problem and a set of research issues. Expand
  • 116
  • 11
  • PDF
Challenges to effective crisis management: Using information and communication technologies to coordinate emergency medical services and emergency department teams
TLDR
We identified three major challenges to coordination between emergency department (ED) teams and emergency medical services (EMS) teams including ineffectiveness of current information and communication technologies, lack of common ground, and breakdowns in information flow. Expand
  • 132
  • 8
  • PDF
Seeking the trustworthy tweet: Can microblogged data fit the information needs of disaster response and humanitarian relief organizations
TLDR
Message data has, as yet, not been adopted by large-scale, international humanitarian relief organizations in an instrumental fashion, at the time of disaster. Expand
  • 138
  • 8
  • PDF
Achieving High Robustness in Supply Distribution Networks by Rewiring
  • K. Zhao, A. Kumar, J. Yen
  • Economics, Computer Science
  • IEEE Transactions on Engineering Management
  • 1 May 2011
TLDR
We evaluate the robustness of original and rewired distribution networks using new metrics and show that the choice of a network topology can affect its robustness considerably. Expand
  • 54
  • 6
  • PDF
Information Supply Chain: A Unified Framework for Information-Sharing
TLDR
To balance demand and supply of information, we propose a framework called “information supply chain” (ISC). Expand
  • 48
  • 6
  • PDF
CAST: Collaborative Agents for Simulating Teamwork
TLDR
We have developed and implemented a multi-agent architecture called CAST that simulates teamwork and supports proactive information exchange. Expand
  • 189
  • 5
  • PDF
Finding influential users of online health communities: a new metric based on sentiment influence.
TLDR
A novel metric to identify influential users in large-scale OHCs. Expand
  • 84
  • 5
  • PDF
...
1
2
3
4
5
...