10Mar

Title:
Colloquium: Javed Mostafa (UNC)

Description: 

A Framework for Balancing Biomedical Data and Task Complexity in Provisioning Effective Information Services


By Javed Mostafa


Javed is the Director of the Carolina Health Informatics Program (chip.unc.edu) and the Director of the Laboratory of Applied Informatics Research (lair.unc.edu). His research concentrates on information retrieval problems, particularly related to search and user-system interactions in large-scale document/data repositories. Javed served as an associate editor for the ACM Transactions on Information Systems for eight years. He currently serves on the editorial board of the Journal of the Association for Information Science & Technology (http://www.asis.org/jasist.html) and he also serves as an associate editor of the ACM Transactions on Internet Technology (http://toit.acm.org/). Translating scientific advances into health care improvements is a passion for Javed, and based on support from UNC?s Translational & Clinical Sciences Institute he co-founded a company concentrating on patient-centric decision support and streamlined care workflow called keonahealth.com.


Contact: jm@unc.edu / chip.unc.edu


There have been revolutionary advances in data manipulation and data sharing technologies. It is easier now to decouple data locations from users, making it possible to store related data in different locations and disseminate data over large, geographically disparate areas. The distributed nature of data, however, created new challenges for data integration and organization. The near exponential growth in production of digital data and its diversity, particularly in biomedicine, requires new ways to conceptualize the data pipeline, i.e., going from data production, to representation, and to high-level, semantic organization. The shift, which is underway, is adoption of semi- or fully-automated processes to drive the key steps in the data pipeline. With significant advances in computer graphics, interaction modalities, and processor speed, visually rich and responsive user interfaces have become part of everyday computing devices. Associated with the latter advances, there are now expectations of new and more powerful means of interactions and capabilities to conduct more complex tasks. Interestingly, in contrast to the previous shift in the data pipeline, the desired direction of change in interaction is away from machine and toward more intense leveraging of basic human senses such as vision and touch. Ultimately, however, the dual challenges of data complexity and task complexity need to be addressed not as separate problems but as part of the same broad aim: provisioning highly personalized, yet efficient information services.


In this talk, I will share a thread of research, going back about two decades, on the development of an information retrieval framework called the distributed multilevel model. The framework was created to define and highlight critical components and processes for balancing data and task complexities in information retrieval. The scope of the framework covers information services at the level of an individual user to data sharing among disparate nodes in a large computer network. In this talk I will draw upon research findings from five projects on data acquisition, representation, sharing, and retrieval to describe critical information provisioning challenges. New systems and the related algorithms, techniques, and experimental results will be presented. At the end of the talk, impact from the five projects on the development of the distributed multilevel model and some ongoing and future work will be described.


Javed is the Director of the Carolina Health Informatics Program (chip.unc.edu) and the Director of the Laboratory of Applied Informatics Research (lair.unc.edu). His research concentrates on information retrieval problems, particularly related to search and user-system interactions in large-scale document/data repositories. Javed served as an associate editor for the ACM Transactions on Information Systems for eight years. He currently serves on the editorial board of the Journal of the Association for Information Science & Technology (http://www.asis.org/jasist.html) and he also serves as an associate editor of the ACM Transactions on Internet Technology (http://toit.acm.org/).


Location: 
UTA 5.522

Time:
8:15am to 9:30am

Year:
2015

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