who cannot fall asleep upon new findings.
who loves making tools and optimizing procedures.
who asks a lot of "why" and "how".
Data mining and network science
Using network models and data science to solve interdisciplinary problems in complex systems such as financial market (e.g., information diffusion and trading behavior), social network (e.g., online / mobile phone social interactions), and biology (e.g., species invasions via global shipping) in close collaboration with domain experts.
Network representation of various types of data; in particular, methods and influences of embedding rich information such as higher-order dependencies into networks.
J. Xu, T.L. Wickramarathne, N.V. Chawla
In the top 5% of all research outputs scored by Altmetric, 97th percentile attention score compared to outputs of the same age, featured in 8 news outlets
J. Xu, T.L. Wickramarathne, N.V. Chawla, E.K. Grey, K. Steinhaeuser, R.P. Keller, J.M. Drake, D.M. Lodge
Northern Finance Association Conference 2014
Research in Behavioral Finance Conference 2014
10th Annual Central Bank Workshop on the Microstructure of Financial Markets 2014
N.V. Chawla, Z. Da, J. Xu, M. Ye
IEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans
Y.Q. Zhang, X. Li, J. Xu, A.V.Vasilakos
IEEE PacificVis 2017
J. Tao, J. Xu, C. Wang, N.V. Chawla
International Conference on Advances in Social Networks Analysis and Mining (ASONAM) 2017
J. Xu, N.V. Chawla
ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD) 2017
J. Xu, N.V. Chawla
Python, SQL and Spark for data mining; C# for graphical interface; C for high performance computing
Shell scripts for managing parallelized jobs on servers and distributed environments Vertica and Snowflake for billion-scale database queries; Airflow and Linux shell scripts for managing parallelized jobs on Amazon S3 and distributed systems.
sklearn and Weka for machine learning; Tableau and Gephi for visualization; ArcGIS for geographical information system; NetworkX for network analysis.
Provisional patent, United States, #61/855,060
Filed May 7, 2013.
Software copyright, China, #2011SR027720
Issued May 2011.
Amateur Lv. 9 "Excellent"
Instead of using smart speakers like Alexa and subscribe to podcasts, I built my own "radio alarm", which everyday at 8AM, it starts by telling my girlfriend how much I love her (with a different phrase everyday), plays our favorite music, reads the weather forecast, and reads the top financial and tech news from my RSS feeds with a TTS engine.
I also enjoy automating my home, from auto feeders for cats and fish, to the power switches behind my TV.