Home > Events > CLIP colloquium: Zheng Xu (CMSC)
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CLIP colloquium: Zheng Xu (CMSC)

Time: 
Wednesday, November 02, 2016 - 11:00 AM to 12:00 PM
Location: 
3258 A.V. Williams Building

resMBS: Information Extraction, Topic Modeling and Tensor Factors for Financial Contracts

Abstract:

This talk summarizes recent work on information extraction to create graph datasets from financial documents and further analysis. resMBS is a bipartite graph dataset respresenting a financial supply chain where financial institutions (FIs) play a Role (labeled edge) on financial contracts (FCs). resMBS was created using a domain-specific rule-based extractor based on the IBM SystemT platform. We apply and extend two unsupervised learning techniques, topic modeling and tensor decomposition to analyze the resMBS graph. One contribution is to efficiently solve a non-negative factorization of an occurrence tensor (discrete values). We present some preliminary results. This is joint work with Louiqa Raschid. Multiple collaborators from UMD and IBM Almaden contributed to creating the resMBS dataset.

Bio:

Zheng is a third year PhD student in the Department of Computer Science, University of Maryland, College Park. He works on optimization, machine learning and their applications. His recentl work automates a specific primal-dual optimization method, ADMM, by adaptively choosing the only free parameter in the algorithm. Before joining UMD, he worked on computer vision as a Project Officer at Nanyang Technological University, Singapore. He received his M.Eng. and B.Eng. from the University of Science and Technology of China, and collaborated with researchers from Microsoft Research Asia on large scale multimedia data.