Mishra defends dissertation

Shubhanshu Mishra
Shubhanshu Mishra

Doctoral candidate Shubhanshu Mishra successfully defended his dissertation, "Information Extraction from Digital Social Trace Data with Applications to Social Media and Scholarly Communication Data," on June 24.

His committee included Associate Professor Jana Diesner, chair and director of research; Associate Professor Vetle Torvik; Karrie Karahalios, iSchool affiliate and professor of computer science; and Robert J. Brunner, professor of accountancy.

From the abstract:  Information extraction aims at developing structured data from an unstructured or semi-structured data set. The thesis starts by identifying social media data and scholarly communication data as a special case of digital social trace data (DSTD). This identification allows us to utilize the graph structure of the data (e.g. user connected to a tweet, author connected to a paper, author connected to authors, etc.) for developing new information extraction tasks. The thesis focuses on information extraction from DSTD, first using only the text data from tweets and scholarly paper abstracts, and then using the full graph structure of Twitter and scholarly communications corpora. This thesis makes three major contributions. First, methods are introduced for extracting information from social media and scholarly data. Second, new categories of information extraction are introduced. Finally, this thesis has resulted in the creation of multiple open source tools and public data sets, which can be utilized by the research community. 
 

Updated on
Backto the news archive

Related News

iSchool well represented at ASIS&T 2020

iSchool faculty and students will participate in the 83rd Annual Meeting of the Association for Information Science and Technology (ASIS&T), which will be held virtually from October 22-November 1. The theme of this year's conference is "Information for a Sustainable World: Addressing Society's Grand Challenges." The meeting is the premier international conference dedicated to the study of information, people, and technology in contemporary society.

NSF announces $3 million award to expand FABRIC cyberinfrastructure globally

A new $3 million grant from the National Science Foundation (NSF) will expand FABRIC, a project to build the nation's largest cyberinfrastructure testbed, to four preeminent scientific institutions in Asia and Europe. The expansion represents an ambitious effort to accelerate scientific discovery by creating the networks needed to move vast amounts of data across oceans and time zones seamlessly and securely.

Science is fast outgrowing the capabilities of today's Internet infrastructure. To fully capitalize on big data, artificial intelligence, advanced computation and the Internet of Things requires robust, interconnected computers, storage, networks and software. Uneven progress in science cyberinfrastructure has led to bottlenecks that stymie collaboration and slow the process of discovery.

Ocepek and Lee receive ASIS&T best poster award

A poster coauthored by Assistant Professor Melissa Ocepek, PhD student Lo Lee, and Stephann Makri, senior lecturer at City, University of London, has been selected to receive the SIG USE Best Information Behavior Conference Poster Award at the Association for Information Science and Technology (ASIS&T) Annual Meeting, which will be held virtually from October 22-November 1. The award recognizes the best poster within the scope of information behavior, "broadly defined to include how people construct, need, seek, manage, give, and use information in different contexts."

Melissa Ocepek

Chan to present research at CSCW 2020

Anita Say Chan, associate professor in the iSchool and the Department of Media and Cinema Studies, will present her research at the 23rd ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW 2020), to be held virtually on October 17-21. CSCW is the premier venue for experts from industry and academia to explore the technical, social, material, and theoretical challenges of designing technology to support collaborative work and life activities.

Anita Say Chan

Samuel presents at FabLearn 2020

Doctoral candidate Noah Samuel presented research on makerspace education at FabLearn 2020, which was held virtually from October 9-11. FabLearn brings together researchers, educators, and policymakers to discuss the maker culture and share best practices in digital fabrication in education, hands-on learning, and instructional tools. The theme of this year's conference was "Making as Resistance and Resilience."

Noah Samuel