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Eric Ding 丁鼎

CS PhD @Cornell University

Email: ericding (at) cs (dot) cornell (dot) edu


Hi! I'm a first-year PhD student in Computer Science at Cornell University, advised by Prof. Rachee Singh. My research interests revolve around systems, networking, and machine learning.

Previously, I conducted research at SymbioticLab under the guidance of Prof. Mosharaf Chowdhury, where I built a scalable software system for large-scale federated learning and optimized an advanced scheduler for federated training acceleration. I received my B.Eng in Computer Science from the University of Michigan with Summa Cum Laude, and B.Eng in Electrical and Computer Engineering from Shanghai Jiao Tong University with honors.

Last updated: 10-15-2024


Publications

Venn: Resource Management Across Federated Learning Jobs
Jiachen Liu, Fan Lai, Ding Ding, Yiwen Zhang, Mosharaf Chowdhury
[arXiv:2312.08298]

WASP: Wearable Analytical Skin Probe for Dynamic Monitoring of Transepidermal Water Loss
Anjali Devi Sivakumar, Ruchi Sharma, Chandrakalavathi Thota, Ding Ding, Xudong Fan
ACS Sensors 2023
[paper]

Talks

An analysis of Linux scalability to many cores, Advanced System Lecture, Cornell University, Sep 26, 2024

Selected Projects

The design and implementation of an out-of-order N-way superscalar processor: The processor adopts the R10k style register renaming scheme, and supports 32-bit RISC-V ISA. Its features include a load/store queue with internal data forwarding, tournament branch predictor, memory prefetcher, and non-blocking set-associative data and instruction cache.

Out-of-order CPU

Propius is a federated learning (FL) resource management system, employing a microservice architecture based on gRPC protocol and Redis database. The system provides a clean abstraction on top of the device-level heterogeneity over the network, and supports various scheduling policies for different objectives. Venn, an advanced scheduling policy for FL job completion time (JCT) optimization, is deployed in Propius.

[doc] [code]

Propius

Venn is an FL scheduler that efficiently schedules ephemeral, heterogeneous devices among many FL jobs, with the goal of reducing their average job completion time (JCT). Venn proposes a contention-aware scheduling heuristic to minimize the average scheduling delay, and a resource-aware device-to-job matching heuristic that focuses on optimizing response collection time by mitigating stragglers. Our evaluation shows that, compared to the state-of-the-art FL schedulers, Venn improves the average JCT by up to 1.88X.

[arXiv:2312.08298]

Venn

WASP: Wearable Analytical Skin Probe, is a wearable closed-chamber hygrometer-based device. WASP uses an in-house communication protocol that operates atop I2C and Bluetooth Low Energy protocols. This protocol enables fast and reliable wireless communication between microcontrollers, ensuring high-fidelity data collection. WASP has been successfully deployed in experimental setups, measuring insensible sweating (TEWL) for early disease detection.

[paper]

WASP

Tennis Ball Collector is an autonomous robot dedicated to collecting objects such as tennis balls. It can:

  • Automatically search objects via an object detection model and a direction control feedback loop
  • Collect objects using a spinning rotor, monitored and controlled by a infrared gate sensor
  • Detect and avoid obstacles through ultrasonic sensors with noise filtering algorithms
  • Operate in a robust and safe manner thanks to a well-defined finite state machine

[poster] [code]

Tennis Ball Collector

Light Strider: Embark on an exciting journey! Light Strider is a captivating front-end web game written in ELM. You'll take charge of directing light beams through intricate mazes, strategically employing mirrors and light splitters to avoid obstacles. The game leverages intricate graph algorithms to generate infinite game maps. Give it a try!

[play!] [code]

Light Strider

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