WNCG

WNCG Shines During ACM SIGMETRICS 2014

Hosted by WNCG Profs. and General Chairs Sanjay Shakkottai and Sujay Sanghavi, ACM SIGMETRICS featured speakers from across the globe. The week-long conference focused on performance evaluation and methods for computer networks and systems. From student presenters such as Sharayu Moharir, Siddhartha Banerjee, Subhashini Krishnasamy to Prof. François Baccelli taking home the SIGMETRICS achievement award, WNCG played an active role in this year's conference at UT Austin. 

Data Driven Insights for Health Informatics

The move to Electronic Health Records and rapidly expanding availability of health-related information, from billing data body sensors, is providing unprecedented opportunities for innovative data driven solutions to problems in personalized medicine and population health. However, there are many formidable challenges in using EHR data that have limited their utility for clinical research so far, including diverse populations, heterogeneous and noisy information, longitudinal data, interpretability, domain constraints, and privacy concerns.

Large Scale Learning from Text, Images and Social Interactions

In this project, WNCG Prof. Joydeep Ghosh and his students and collaborators developed numerous discriminative and generative models for solving large scale transfer learning problems prevalent in text document analysis, social network study, recommender systems, object recognition from images, evolution of financial data and sports analytics.

Erasure Codes for Large-Scale Distributed Storage

Distributed storage systems for large clusters typically use replication to provide reliability. Recently, erasure codes have been used to reduce the large storage overhead of three-replicated systems. Reed-Solomon codes are the standard design choice and their high rebuild cost is often considered an unavoidable price to pay for high storage efficiency and high reliability.

Host-Compiled Performance, Energy, Reliability, Power and Thermal (PERPT) Simulation of Multi-Processor-Systems-on-Chip

Simulations remain one of the primary mechanisms for early validation and exploration of systems with complex dynamic interactions, such as typical multi-processor systems-on-chip (MPSoCs). With ever increasing complexities, traditional approaches based on register transfer level (RTL) or instruction-set simulation (ISS) are often either too slow or too inaccurate, especially in multi-core and multi-processor contexts.

Postdoc Javad Ghaderi to join Columbia Faculty

WNCG Postdoctoral Associate Javad Ghaderi will join Columbia University this fall as a new tenure-track assistant professor in electrical engineering with a focus on communications and networking. Prof. Ghaderi, who received the offer last year as a student at the University of Illinois at Urbana Champaign (UIUC) deferred the offer until 2014 for the opportunity to study as a Postdoctoral Associate with WNCG.

Sifting Through Social Noise

Recent years have radically changed the way people socialize; in parts of the developed world that have good broadband and cellular penetration, the average person now spends more time on online social networks than on physical meetings with acquaintances outside their immediate family.

Device-to-Device (D2D) Communication: Fundamentals with Applications to LTE

Device-to-device (D2D) communication that enables direct communication between nearby mobiles is an exciting and innovative feature of next-generation cellular networks. It will facilitate the interoperability between critical public safety networks and ubiquitous commercial networks based on e.g. LTE. How should we analyze and design such hybrid networks consisting of both cellular and ad hoc links? WNCG Profs.

What Electrical Engineering Means For Social Networks

When studying Social Networks, the public mind does not often consider the enormous impact the field of Electrical Engineering has on the development of these networks.

“Many tools that traditionally belonged to applied mathematics and electrical engineering have proven to be very useful in social networks,” WNCG Prof. Constantine Caramanis states.

Sifting Through Social Noise

Recent years have radically changed the way people socialize; in parts of the developed world that have good broadband and cellular penetration, the average person now spends more time on online social networks than on physical meetings with acquaintances outside their immediate family.

“We were socializing before social networks,” Prof. Sujay Sanghavi states. “But now we can automatically capture fine details of social interaction, such as when someone views a photo and how they share and interact with the image.”

The problem now is the issue of information overload.

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