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The VELOCITY Compiler Project aims to address computer architecture problems with a new approach to compiler organization. This compiler organization, embodied in the VELOCITY Compiler (and derivative run-time optimizers), enables true whole-program scope, practical iterative compilation, and smarter memory analysis. These properties make VELOCITY better at extracting threads, improving reliability, and enhancing security.

Faculty and Graduate Students: David August
Research Areas: Systems

Verified Software Toolchain

The software toolchain includes static analyzers to check assertions about your program; optimizing compilers to translate your program to machine language; operating systems and libraries to supply context for your program. The Verified Software Toolchain project assures with machine-checked proofs that the assertions claimed at the top of the toolchain really hold in the machine-language program, running in the operating-system context.

Faculty and Graduate Students: Andrew Appel, Lennart Beringer, Jean-Marie Madiot, Santiago Cuellar, Qinxiang Cao, Nikolaos Giannarakis

Vision Group

We study vision science ‒ the computational principles underlying computer vision, robot vision, and human vision. We are interested in building computer systems that automatically understand visual scenes, both inferring the semantics and extracting 3D structure for a large variety of environments. Our research is also closely related to computer graphics, perception and cognition, cognitive neuroscience, machine learning, HCI, NLP and AI in general.

At the moment, we focus on leveraging Big 3D Data for Visual Scene Understanding (e.g. RGB-D sensors, CAD models, depth, multiple viewpoints, panoramic fields of view), to look for the right representations of visual scenes that realistically describe the world. We believe that it is critical to consider the role of a computer as an active explorer in a 3D world, and learn from rich 3D data that is close to the natural input that humans have.

Faculty and Graduate Students: Jianxiong Xiao
Research Areas: Vision / Graphics

Web Privacy

Web Privacy

Faculty and Graduate Students: Arvind Narayanan
Research Areas: Security & Privacy


WordNet is a resource used by researchers attempting to get computers to understand English (and any other language for which a WordNet exists).
Viewing a human language as a very large graph provides a theoretical framework for creating algorithms for understanding the meaning of words
in a text (e.g. determining if "fly" is an insect or a ball hit into left field) and translating documents between languages. We are working on both making WordNet more effective for these tasks and creating new approaches that use WordNet.

Faculty and Graduate Students: Christiane Fellbaum
Research Areas: Machine Learning

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