Computer Architecture Seminar: Associative Computing with Emerging Nonvolatile Memories

Power dissipation and off-chip bandwidth restrictions are critical challenges that limit microprocessor performance. Ternary content addressable memories (TCAM) hold the potential to address both problems in the context of a wide range of data-intensive workloads that benefit from associative search capability. Power dissipation is reduced by eliminating instruction processing and data movement overheads present in a purely RAM based system. Bandwidth demand is lowered by processing data directly on the TCAM chip, thereby decreasing off-chip traffic.

Linking the Signaling Cascades and Dynamic Regulatory Networks Controlling Infection Response

Host cells undergo rapid and drastic transcriptional changes to mount a
response to pathogen infection. The response is triggered when upstream host
proteins detect the pathogen and propagate signals via cascades of
protein-protein interactions to transcription factors, which selectively
activate or inhibit genes. Although these upstream initiators and the
resulting transcriptional effects can be characterized experimentally, the
intermediate proteins driving signaling and transcription cannot be directly

Unraveling the mechanism of chaperone-mediated protein homeostasis

Chaperones are special proteins that aid the folding, unfolding, assembly
and disassembly of other proteins. Chaperones rely on a large and diverse
set of co-chaperones that regulate their specificity and function. How the
se co-chaperones regulate protein folding and whether they have
chaperone-independent biological functions is largely unknown. In this talk,
I will first present novel experimental and statistical approaches to study
the chaperone/co-chaperone/client inter action network in a systematic way.

Trust Me, I'm a Smartphone: Building a Secure Foundation for Mobile Services

Affordable mobile devices and ubiquitous wireless connectivity have placed digital communication, computation, and sensing at the center of nearly all human activity. However, as the importance and popularity of mobile services like citizen journalism and mobile social networking have grown, so too has the need to reason about the trustworthiness of the data on which these services depend.

Kevin Murphy, PhD

These days, there is a lot of hype about big data. But such data is useless
unless we can interpret it. Since such data is often noisy and ambiguous,
especially in the "long tail" where many of the examples occur, we will
inevitably be somewhat uncertain about underlying patterns and/or future
predictions. This motivates analyzing the data using structured
probabilistic models, which can properly represent uncertainty, and exploit
prior knowledge when available.

Design for Security: The Hardware-Up Principle

In this talk, I will describe a new design principle for security: the hardware-up principle. Hardware-up security means that systems should be secured starting from hardware instead of the existing popular approach where software layers are secured, assuming that the lower layers are secure when they are not. I will discuss how systems designed for security from hardware-up offer unique advantages unavailable in current protection systems: a smaller attack surface, energy-efficient execution, and the ability to reason about security compositionally.


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