Event Archive

RDMA Congestion Control: It’s Only for the Compliant

Systems and Networking Seminar
Speaker Name
Jack Snyder
Location
The talk will be virtual on Zoom.
Date and Time
-

RDMA networks enable low latency and low CPU utilization, and their widespread adoption in datacenters enables improved application performance. However, there are performance isolation concerns for RDMA  deployed in a shared cloud environment. In particular, we find that congestion control enforcement and congestion control algorithms in RDMA make the network susceptible to performance hacking attacks, which give the attacker extra bandwidth and cause severe congestion in the network.

Data Science against COVID-19

Duke Electrical Computer Engineering Colloquium
Speaker Name
Nuria Oliver
Location
Zoom Registration Link: https://duke.zoom.us/meeting/register/tJwsfuGrpjIiGtXpBTaGYHMM0DRfmV1ICnuA
Date and Time
-

In my talk, I will describe the work that I have been doing since March 2020, leading a multi-disciplinary team of 20+ volunteer scientists working very closely with the Presidency of the Valencian Government in Spain on 4 large areas: (1) human mobility modeling; (2) computational epidemiological models (both metapopulation, individual and LSTM-based models); (3) predictive models; and (4) citizen surveys via the COVID19impactsurvey with over 600,000 answers worldwide.

The Isolating Cuts Lemma: A new tool for solving minimum cut problems

Algorithms Seminar
Speaker Name
Debmalya Panigrahi
Location
The talk will be virtual on Zoom.
Date and Time
-

Minimum cut problems are among the most well-studied questions in combinatorial optimization. In this talk, I will introduce a simple but powerful new tool for solving minimum cut problems called the isolating cuts lemma. I will show how this tool can be employed to obtain faster algorithms for several fundamental min-cut problems, namely global min-cut, Steiner min-cut, and all-pairs min-cut. For these problems, the new results represent the first improvement in their runtimes in several decades.

Ensemble-Based Computational Protein Design: Algorithms and Applications

Miscellaneous Talk
Speaker Name
Graham Holt
Location
MSRBIII 1125
Date and Time
-

Computational modeling of proteins is more biophysically accurate when modeling protein thermodynamic ensembles. Principled design algorithms should exploit statistical thermodynamics of non-covalent binding, and therefore require approximation of partition functions over protein conformation space. The MARK* algorithm in the OSPREY protein design software suite allows not only provable approximation of the partition function and estimation of binding affinity, but also approximation and visualization of protein energy landscapes.

Combatting Gerrymandering with Social Choice: The Design of Multi-member Districts

Algorithms Seminar
Speaker Name
Nikhil Garg
Location
Virtual
Date and Time
-

Every representative democracy must specify a mechanism under which voters choose their representatives. The most common mechanism in the United States -- winner-take-all single-member districts -- both enables substantial partisan gerrymandering and constrains `fair' redistricting, preventing proportional representation in legislatures. We study the design of multi-member districts (MMDs), in which each district elects multiple representatives, potentially through a non-winner-takes-all voting rule. We carry out large-scale analyses for the U.S.

Accessibility is not new, and neither is ableism: Dispelling disability myths and putting accessibility into action

Identity & Computing Lecture Series: Understanding Racism and Bias in Computing
Speaker Name
Dr. Michele Williams
Location
Virtual, registration is required
Date and Time
-

This second lecture in the Identity & Computing Lecture Series: Understanding Racism and Bias in Computing welcomes Dr. Michele Williams, who explains how people in computing must ensure inclusion of people with disabilities. This means teaching and creating technology inclusive of people with disabilities, and going deeper in understanding how ableism causes non-disabled people to not consider disabled people in the first place.

A New Algorithm for Edge Connectivity Augmentation

Algorithms Seminar
Speaker Name
Ruoxu Cen
Location
The talk will be virtual on Zoom.
Date and Time
-

In the edge connectivity augmentation problem, given a weighted undirected graph and a target connectivity tau, we want to increase the graph's connectivity to tau by adding edges with minimum total weight. Our new algorithm uses poly-logarithmic calls to any max-flow algorithm, which yields a running time of O((m+n^(3/2)) polylog(n)) and improves on the previous best time of O(n^2 polylog(n)). We also obtain an identical improvement in the running time of the closely related edge splitting off problem in undirected graphs.

Gaussian Differential Privacy and Central Limit Theorems

Miscellaneous Talk
Speaker Name
Weijie Su
Location
The talk will be virtual on Zoom.
Date and Time
-
Privacy-preserving data analysis has been put on a firm mathematical foundation since the introduction of differential privacy (DP) in 2006. In this talk, we propose a relaxation of DP that we term "f-DP", which has a number of appealing properties and avoids some of the difficulties associated with prior relaxations.

TechConnect Career Fair

inDuke Event
Location
Virtual on Handshake Platform
Date and Time
-

Duke TechConnect brings students and employers together for networking, education and connections. At TechConnect on September 22, 2021, employers will connect with Engineering and Computer Science students in a virtual networking environment powered by Handshake.

Algorithms of Oppression: How Search Engines Reinforce Racism

Identity & Computing Lecture Series: Understanding Racism and Bias in Computing
Speaker Name
Dr. Safiya U. Noble
Location
Virtual, registration is required
Date and Time
-

The inaugural lecture in the Identity & Computing Lecture Series: Understanding Racism and Bias in Computing. The landscape of information is rapidly shifting as new imperatives and demands push to the fore increasing investment in digital technologies. Yet, critical information scholars continue to demonstrate how digital technology and its narratives are shaped by and infused with values that are not impartial.

The Measurement and Mismeasurement of Trustworthy ML

Duke Computer Science Colloquium
Speaker Name
Sanmi Koyejo
Location
The talk will be virtual on Zoom.
Date and Time
-
Across machine learning (ML) applications, the dire consequences of mismeasurement are a recurring theme. This talk will outline emerging strategies for addressing the measurement gap in ML and how this impacts trustworthiness.

A Statistical and Computational Foundation for Tensor Learning

Duke Computer Science Colloquium
Speaker Name
Anru Zhang
Location
The talk will be virtual on Zoom.
Date and Time
-
The analysis of tensor data has become an active research topic in data science recently. In this talk, we discuss some recent advances in high-dimensional tensor data analysis through several fundamental topics and their applications in microscopy imaging and neuroimaging

Why Should Computer Science care about Identity? Webinar with Nicki Washington

Special Talk
Speaker Name
Nicki Washington
Location
Zoom - Registration Required
Date and Time
-

Duke Computer Science Professor Nicki Washington will be featured in a webinar today on Reimagining Education: Conversations on Character, Commitment & Community. Join Suzanne Shanahan, Nannerl O. Keohane Director of the Kenan Institute for Ethics and Associate Research Professor in Sociology and Nicki Washington for their conversation: “Why should computer science care about identity?”

Registration is required to attend this webinar:
Register Now

Computer Science 2021 Virtual Graduation Celebration

Special Event
Location
Virtual
Date and Time
-

Duke CS 2021 Graduates: Join our virtual celebration at 2 PM EDT on Sunday, May 2! The event will be live streamed over YouTube for friends and family, and CS graduates will be notified by email with the Zoom link to participate. CS faculty will welcome you to this Zoom meeting where you can interact with your peers, enjoy messages from CS alumni, hear graduates' names and degrees, awards, have some fun, and so much more. Don't miss it! https://graduation2021.cs.duke.edu

Disruptive Research on Distributed ML Systems

Systems and Networking Seminar
Speaker Name
Guanhua Wang
Location
The talk will be virtual on Zoom.
Date and Time
-

Deep Neural Networks (DNNs) enable computers to excel across many different applications such as image classification, speech recognition and robotics control. To accelerate DNN training and serving, parallel computing is widely adopted. System efficiency is a big issue when scaling out. In this talk, I will make three arguments towards better system efficiency in distributed DNN training and serving.

An Overview of Research Activities in the Software and Systems Division

Duke Electrical Computer Engineering Colloquium
Speaker Name
Ram D. Sriram
Location
The talk will be virtual on Zoom.
Date and Time
-

The mission of the Software and Systems Division (SSD) at the National Institute of Standards and Technology (NIST) is to work with industry, academia and other government agencies to accelerate the development and adoption of correct, reliable, testable software, leading to increased trust and confidence in deployed software; promulgate methods to develop better standards and testing tools for today's software infrastructures and tomorrow's next-generation software systems; advance the state of the art of software testing by developing scientifically rigorous, breakthrough techniques

E2E Encryption and Identity Properties for Zoom Meetings

Duke Privacy and Security Seminar
Speaker Name
Antonio Marcedone
Location
The talk will be virtual on Zoom.
Date and Time
-

Zoom’s platform provides video conferencing services for hundreds of millions of daily meeting participants. They use Zoom to conduct business, learn among classmates scattered by recent events, connect with friends and family, collaborate with colleagues, and in some cases, discuss critical matters of state. Zoom is working hard to improve meeting security for its users.

Google v Oracle: Copyright and Fair Use Examined

Duke Computer Science Colloquium
Speaker Name
Owen Astrachan
Location
The talk will be virtual on Zoom.
Date and Time
-
On April 5, 2021 the US Supreme Court in a 6-2 decision in the copyright case of Google v Oracle found that Google's use of the APIs from 37 Java packages in the Android platform was legally a "fair use", thus deciding the case in favor of Google. I was the technical expert witness working for Google in both jury trials. In this talk I will provide my perspective on the litigation, the trials, and the decision in favor of Google.

Networks Capable of Change

Duke Computer Science Distinguished Lecture Series
Speaker Name
Jennifer Rexford
Location
The talk will be virtual on Zoom.
Date and Time
-

The early designers of the Internet fostered tremendous innovation by leaving much of the network’s functionality to the programmable computers at its periphery. Unfortunately, the *inside* of the network has been much harder to change. Yet, changing the network is important to make the Internet more reliable, secure, performant, and cost-effective.  The networking research community has struggled for many years to make networks more programmable. What has worked, and what hasn't, and what lessons have we learned along the way?