1. Graduate Research Assistant, Civil, Structural & Environmental Engineering Dept. (CSEE), Univ. at Buffalo, Amherst, NY 14260.
2. Senior Research Scientist, Multidiscipline Center for Earthquake Engineering Research (MCEER), Univ. at Buffalo, Amherst, NY 14260.
3. PhD Candidates, Computer Science and Engineering Dept., Univ. at Buffalo, 201 Bell Hall, Buffalo, NY 14260.
4. Professor of CSEE and Director of MCEER, University at Buffalo, 429 Bell Hall, Buffalo, NY 14260 (corresponding author).