# Events by month

## April 2021

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### Seminar • Data Systems — Deep Learning on Graphs: Challenges and Opportunities

Monday, April 5, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Jiliang Tang, Department of Computer Science and Engineering
Michigan State University

### Seminar • Machine Learning — Towards Unsupervised 3D Deep Learning

Tuesday, April 6, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Andrea Tagliasacchi, Research Scientist

It is not uncommon to think of computer graphics and computer vision as loosely disconnected disciplines; the former dealing with the synthesis of visual phenomena and the latter with analysis. However, recent advances in deep learning have blurred the boundary between the two. As a consequence, the research path to develop algorithms that effectively interpret the 3D scene “behind” an image has never seemed so well within reach.

### PhD Defence • Data Structures and Algorithms — Efficient Data Structures for Partial Orders, Range Modes, and Graph Cuts

Wednesday, April 7, 2021 — 1:00 PM EDT

Please note: This PhD defence will be given online.

Bryce Sandlund, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor J. Ian Munro

This thesis considers the study of data structures from the perspective of the theoretician, with a focus on simplicity and practicality. We consider both the time complexity as well as space usage of proposed solutions. Topics discussed fall in three main categories: partial order representation, range modes, and graph cuts.

### Talk • Programming Languages — Symmetric Meta-Programming

Wednesday, April 7, 2021 — 2:00 PM EDT

Please note: This talk will be given online.

Andrew Beach, Master’s candidate
David R. Cheriton School of Computer Science

### PhD Seminar • Data Systems — KTabulator: Interactive Ad hoc Table Creation using Knowledge Graphs

Friday, April 9, 2021 — 12:00 PM EDT

Please note: This PhD seminar will be given online.

Nafisa Anzum, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Semih Salihoglu

### DLS: Laurie Williams — Solving Software Security Challenges with Artificial Intelligence

Friday, April 9, 2021 — 1:30 PM EDT

Laurie Williams
Distinguished University Professor
Department of Computer Science, North Carolina State University

### Master’s Thesis Presentation • Data Systems — Discovering Domain Orders through Order Dependencies

Monday, April 12, 2021 — 11:00 AM EDT

Please note: This master’s thesis presentation will be given online.

David R. Cheriton School of Computer Science

Supervisor: Professor Lukasz Golab

### Seminar • Machine Learning — Compositional Reasoning in Robot Learning

Monday, April 12, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Danfei Xu, Computer Science Department
Stanford University

### Seminar • Systems and Networking — Tiny Functions at Large Scale: New Systems for Interactive Computing

Tuesday, April 13, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Stanford University

### Master’s Thesis Presentation • Computer Graphics — Generating Patterns on Clothing for Seamless Design

Tuesday, April 13, 2021 — 3:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Clara Kang, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Craig Kaplan

Symmetric patterns are used widely in clothing manufacture. However, the discontinuity of patterns at seams can disrupt the visual appeal of clothing. While it is possible to align patterns to conceal such pattern breaks, it is hard to create a completely seamless garment in terms of pattern continuity.

### PhD Seminar • Artificial Intelligence — A Score-and-Search Approach to Learning Bayesian Networks with Noisy-OR Relations

Wednesday, April 14, 2021 — 11:00 AM EDT

Please note: This PhD seminar will be given online.

Charupriya Sharma, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Peter van Beek

### Seminar • Algorithms and Complexity — An Optimal Separation of Randomized and Quantum Query Complexity

Wednesday, April 14, 2021 — 1:00 PM EDT

Please note: This seminar will be given online.

Pei Wu, Computer Science Department
University of California, Los Angeles

We prove that for every decision tree, the absolute values of the Fourier coefficients of given order $\ell\geq1$ sum to at most $c^{\ell}\sqrt{\binom{d}{\ell}(1+\log n)^{\ell-1}},$ where $n$ is the number of variables, $d$ is the tree depth, and $c>0$ is an absolute constant. This bound is essentially tight and settles a conjecture due to Tal (arxiv 2019; FOCS 2020).

### Seminar • Systems and Networking — Building Latency-Critical Datacenter Systems

Thursday, April 15, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Marios Kogias, Researcher
Microsoft Research, Cambridge

### Master’s Thesis Presentation • Systems and Networking — In-Network Scheduling for Real-Time Analytics

Thursday, April 15, 2021 — 2:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Sreeharsha Udayashankar, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Samer Al-Kiswany

### Master’s Thesis Presentation • Artificial Intelligence — Learning-free Methods for Goal Conditioned Reinforcement Learning from Images

Friday, April 16, 2021 — 1:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Alexander Van de Kleut, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Jeff Orchard

### PhD Seminar • Human-Computer Interaction — Can a Humorous Conversational Agent Enhance Learning Experience and Outcomes?

Friday, April 16, 2021 — 1:00 PM EDT

Please note: This PhD seminar will be given online.

Jessy Ceha, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Edith Law

### Master’s Thesis Presentation • Data Systems — Total Relation Recall: High-Recall Relation Extraction

Friday, April 16, 2021 — 2:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Xinyu Liu, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Jimmy Lin

### Seminar • Systems and Networking — Watching the Watchmen: Trustworthy Network Tasks Outsourcing

Monday, April 19, 2021 — 10:00 AM EDT

Please note: This seminar will be given online.

Grace Liu, Postdoctoral Researcher
Cylab, Carnegie Mellon University

### Master’s Thesis Presentation • Software Engineering — An Analysis of Human Aspects of Collaborative Group Members in OSS Development

Monday, April 19, 2021 — 3:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Sheik Shameer, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Mei Nagappan

### Master’s Thesis Presentation • Software Engineering — mel – Model Extraction Language and Interpreter

Monday, April 19, 2021 — 4:15 PM EDT

Please note: This master’s thesis presentation will be given online.

Robert Hackman, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Jo Atlee

### Master’s Thesis Presentation • Cryptography, Security, and Privacy (CrySP) — PUPy: A Generalized, Optimistic Context Detection Framework

Tuesday, April 20, 2021 — 12:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Matthew Rafuse, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Urs Hengartner

### PhD Seminar • Algorithms and Complexity — VC Dimension and Distribution-Free Sample-Based Testing

Wednesday, April 21, 2021 — 1:00 PM EDT

Please note: This PhD seminar will be given online.

Nathan Harms, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Eric Blais

### Master’s Thesis Presentation • Algorithms and Complexity — Selectable Heaps and Their Application to Lazy Search Trees

Wednesday, April 21, 2021 — 3:00 PM EDT

Please note: This master’s thesis presentation will be given online.

Lingyi Zhang, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor J. Ian Munro

### Seminar • Data Visualization — Human-Centered Machine Learning: Approaches for Mixed-Initiative Topic Model Refinement

Thursday, April 22, 2021 — 12:00 PM EDT

Please note: This seminar will be given online.

Data Analysis and Visualization, University of Konstanz
Visualization for Information Analysis Lab, University of Ontario Institute of Technology

### Women in Computer Science • Responding to Everyday Bias: How to Recognize it and Interrupt it

Monday, April 26, 2021 — 12:00 PM EDT

Everyone is welcome to attend this free online event.

We have all been in conversations where a friend, colleague or boss makes an off-handed or stereotypical comment. Such comments can be hurtful and make for a non-inclusive learning or working environment. We might let the comment slide because we want to move on and don’t want to make the speaker defensive. However, by not speaking up, we silently convey that such comments are OK with us and we help to normalize them.

### PhD Seminar • Artificial Intelligence — Learning all Credible Bayesian Network Structures for Model Averaging

Wednesday, April 28, 2021 — 10:30 AM EDT

Please note: This PhD seminar will be given online.

Alister Liao, PhD candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Peter van Beek

### Master’s Thesis Presentation • Scientific Computation — Fast and Scalable Solvers for the Fluid Pressure Equations with Separating Solid Boundary Conditions

Friday, April 30, 2021 — 9:00 AM EDT

Please note: This master’s thesis presentation will be given online.

Junyu Lai, Master’s candidate
David R. Cheriton School of Computer Science

Supervisor: Professor Justin Wan

### April 2021

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