I am an Assistant Professor in the Computer Engineering department at San José State University. In 2016, I received my Ph.D. in computer science from the University of Minnesota. My advisor was George Karypis. In 2011, I received my M.S. in computer science from Texas State University, under the guidance of Byron J. Gao.
My research interests fall broadly at the intersection of data mining, high performance computing, information retrieval, machine learning, and bioinformatics. Much of my work has been focused on scalable and efficient methods for analyzing sparse data. I have developed serial and parallel methods for identifying near neighbors, methods for characterizing how user behavior changes over time, and methods for personalized and collaborative presentation of Web search results. Future research directions of interest include:
- Knowledge discovery from Sparse Big Data.
- Scalable quantitative methods for Data Mining and Bioinformatics.
- Deep Learning analysis of dynamic information networks.
- Machine Learning models for medical diagnosis.
- Smart city data analytics.
- Dec 5, 2017 Our paper titled Parallel cosine nearest neighbor graph construction has been published in the Journal of Parallel and Distributed Computing.
- Dec 4, 2017 Our paper titled Document Clustering has been published in the prominent online reference collection Wiley StatsRef: Statistics Reference Online.
- Dec 1, 2017 Was awarded the Outstanding Paper Reviewer Award at the 26th ACM International Conference on Information and Knowledge Management (CIKM 2017).
- Nov 15, 2017 The HPC@Engineering cluster is expanding to include 15 GPU nodes and about 0.5PB of high performance parallel Lustre storage. Cluster expected to be live Feb, 2018.
- Oct 13, 2017 Along with Jerry Gao and Subhankar Dhar, was awarded a $42K grant from the City of San José for research related to Smart City.
- Oct 10, 2017 My MS thesis students Rathna Ramesh and Manika Kapoor were awarded the 2017 Davidson Student Scholar Award from the College of Engineering at San José State University.
- Sep 20, 2017 Two papers published at IEEE SmartCity 2017; the first describes the 2017 NVIDIA AI City Challenge, which we helped organize, while the second describes our lab's results in Tracks 1 and 2 of the challenge.
- Aug 25, 2017 Another big milestone in the HPC@Engineering project: the cluster has been delivered and powered on. Now for the fun part...
- Aug 5, 2017 Our lab placed 2nd with regards to prediction mean Average Precision across all datasets in Track 1 (detection, localization, and classification) of the NVIDIA AI City Challenge. The summer-long event, which I helped organize, drew submissions from 29 international teams from many renowned universities, who competed in developing prediction models and applications for analyzing traffic camera video footage. More details about the challenge can be found here. Challenge results are posted here (we are Team21).
- Aug 2, 2017 Our paper titled Efficient identification of Tanimoto nearest neighbors; All-pairs similarity search using the extended Jaccard coefficient has been published in the International Journal of Data Science and Analytics.
- May 26, 2017 My student Alex Richards and I received an Undergraduate Research Grant from San José State University.
- May 11, 2017 Our paper titled Optimal Constrained Wireless Emergency Network Antenna Placement has been accepted to be presented at IEEE SCI 2017, in the San Francisco Bay Area, CA.
- Apr 22, 2017 Received a grant from the College of Engineering Excellence Research Center on Smart Technology, Computing, and Complex System (STCCS) at San José State University.
- Apr 12, 2017 The HPC@Engineering project I am leading (building a small HPC cluster for the College of Engineering at SJSU) has reached a huge milestone! The project has been approved, funds allocated, and, after meeting with 5 potential vendors for two months to fine-tune proposals, we have chosen Dell as our official vendor. We should have the cluster in late August.
- Feb 15, 2017 Our paper titled Cosine Approximate Nearest Neighbors has been accepted to be presented at iDSC, in Salzburg, Austria.
- Feb 8, 2017 Gave a talk at Lawrence Livermore National Laboratory on Efficient neighborhood graph construction for sparse high dimensional data.
- Feb 2, 2017 NVIDIA Corporation graciously donated two GeForce Titan X Pascal GPU cards to be used for parallel computing research in our lab.
- Nov 14, 2016. Participated in the Early Career Workshop at SC'16.
- Nov 13, 2016. Presented our work on Fast Parallel Cosine K-Nearest Neighbor Graph Construction at the Irregular Applications: Architectures and Algorithms workshop, which was part of SC'16.
- Oct 19, 2016. Our paper titled Efficient Identification of Tanimoto Nearest Neighbors has received the Best Research Paper Award at the 2016 IEEE International Conference on Data Science and Advanced Analytics (DSAA’2016).
- Oct 19, 2016. Was awarded the prestigious Next Generation Data Scientist Award (NDGS) at the 2016 IEEE International Conference on Data Science and Advanced Analytics (DSAA’2016).
- Aug 22, 2016. Joined the Department of Computer Engineering at San José State University as an Assistant Professor.