Helen Xu
Office: MIT CSAIL, 32-G770.
Email: hjxu at mit dot edu
Online presence: Google Scholar and Linkedin.
orcid.org/0000-0003-2232-3305
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About me
I am a PhD student in the Supertech group at MIT
and am fortunate to be advised by Charles Leiserson.
I graduated with a BS in Computer Science and Applied Math at Stony Brook University, where I was lucky to have the opportunity to work with
Michael Bender
and Rob Johnson.
I finished my SM at MIT in 2018. My thesis "Fill Estimation for Blocked Sparse Matrices and Tensors" can be found here.
I spent Summer 2019 at Microsoft Research in Cambridge, UK with Dr. Nuno Lopes.
I visited ENS Lyon from January to March 2020 under a Chateubriand Fellowship.
I spent Summer 2020 at NVIDIA Research working with Michael Pellauer.
My research interests include parallel computing, cache-efficient algorithms, and performance engineering.
Papers
-
A Parallel Packed Memory Array to Store Dynamic Graphs
with Brian Wheatman
ALENEX 21
-
*Beyond Worst-case Analysis of Multicore Caching Strategies
with Shahin Kamali
APOCS 21
-
Work-Efficient Parallel Algorithms for Accurate Floating-Point Prefix Sums
with Sean Fraser and Charles E. Leiserson
HPEC 20
-
*Brief Announcement: Multicore Paging Algorithms Cannot Be Competitive
with Shahin Kamali
SPAA 20 [paper]
-
*Closing the Gap Between Cache-oblivious and Cache-adaptive Analysis
with Michael A. Bender, Rezaul A. Chowdhury, Rathish Das, Rob Johnson, William Kuszmaul, Andrea Lincoln, Quanquan C. Liu, and Jayson Lynch
SPAA 20 [paper]
-
*Dynamic Programming with Spiking Neural Computing
with James Aimone, Ojas Parekh, Cynthia Phllips, Ali Pinar, and William Severa
ICONS 19 [paper] [ACM]
-
Packed Compressed Sparse Row: A Dynamic Graph Representation
with Brian Wheatman
HPEC 18 [paper]
-
*Cache-Adaptive Exploration: Experimental Results and Scan-Hiding for Adaptivity
with Andrea Lincoln,
Quanquan C. Liu,
and Jayson Lynch
SPAA 18 [paper] [ACM]
-
A Fill Estimation Algorithm for Sparse Matrices and Tensors in Blocked Formats
with Peter Ahrens
and Nicholas Schiefer
IPDPS 18 [paper]
-
*Write-Optimized Skip Lists
with Michael A. Bender,
Martin Farach-Colton,
Rob Johnson,
Simon Mauras,
Tyler Mayer,
and Cynthia Phillips
PODS 17 [paper] [ACM]
* denotes author lists in alphabetical order.
Teaching
Performance Engineering of Software Systems (MIT 6.172, Fall 2017 and Fall 2018).
Foundations of Computer Science (SBU CSE 215, Spring 2016).
Foundations of Computer Science: Honors (SBU CSE 150, Fall 2015).
Applied Linear Algebra (SBU AMS 210, Fall 2013).
Other
In Spring 2018, I joined the EECS Communication Lab.
I blog for the MIT graduate admissions blog.
You can find more information about our standup class here.
In 2017, I served as president of Graduate Women of Course 6 (GW6).