Sepehr Abdous

sabdous1[AT]jh[DOT]edu . sepehrabdous1375[AT]gmail[DOT]edu

I am a Computer Science PhD student at Johns Hopkins University. Advised by Dr. Soudeh Ghrobani, my research concentrates on designing techniques to effectively measure and resolve sudden congestion events, known as bursts, in modern datacenters that negatively affect end-user experience. I received my bachelors degree from Sharif University of Technology. For my Bachelor's thesis, I evaluated the effects of load balancing in Named Data Networking (NDN) architecture.


Research Interests

My main field of research focuses on ways of measuring and addressing short periods of high utilization, known as bursts, that cause packet drops and impose extra latency in large datacenters. Addressing bursts is challenging due to their unpredictability and wide range of root causes. Currently, I am probing packet deflection, i.e., re-routing the packets forwarded to a congested port instead of dropping them, as a potential solution to the burst problem.


Research Experience

Resolving bursts in datacenters

HopNets group, Johns Hopkins University

Supervised by Prof. Soudeh Ghorbani, I work on developing approaches for measuring and defusing bursts, sudden periods of high utilization, in modern datacenter networks.

2019 - Present

Creating an AR-enabled NDN-based browser

UCLA REMAP group, Summer Internship at UCLA

As an intern of UCLA REMAP group, under the supervision of Prof. Jeff Burke, I participated in the project of creating an AR-enabled browser from the chromium codebased that operates on the Named Data Networking(NDN) architecture.

Summer 2018

Probing the effects of load-balancing in NDN-based networks

BSc Thesis

Evaluated the influences of the "power-of-two-choices" load-balancing scheme in a network grid while using NDN as the base network architecture. For this project, I was advised by Dr. Gharib and Prof. Movaghar from Sharif University of Technology.

2017 - 2019

Publications

Papers

Tempus: Probabilistic Network Latency Verification

Sepehr Abdous*, Senapati Diwangkara*, Soudeh Ghorbani (*Equal contribution)
IEEE Access 2024

Practical Packet Deflection in Datacenters

Sepehr Abdous, Erfan Sharafzadeh, Soudeh Ghorbani

PDF    Slides    Artifacts

CoNEXT 2023

Understanding the impact of the host networking elements on traffic bursts

Erfan Sharafzadeh, Sepehr Abdous, Soudeh Ghorbani

PDF    Slides    Artifacts

NSDI 2023

Burst-tolerant Datacenter Networks with Vertigo

Sepehr Abdous*, Erfan Sharafzadeh*, Soudeh Ghorbani (*Equal contribution)

PDF    Slides    Artifacts

CoNEXT 2021

Stock price forecasting using machine learning with event detectionon candlestick

Salman Marvasti, Sepehr Abdous, Negin Majidi

File available on Researchgate

2018

Posters

Implementable selective deflection with Canary

Sepehr Abdous, Erfan Sharafzadeh, Soudeh Ghorbani

Abstract    Poster

NSDI 2023

Vertigo: A Priority-aware Burst-tolerant Datacenter Fabric

Sepehr Abdous, Erfan Sharafzadeh, Sougol Gheissi, Soudeh Ghorbani

Poster

CSLSC 2021

Valinor: Transport-Agnostic Packet Prioritization and Ordering at the Edge

Erfan Sharafzadeh, Sepehr Abdous, Sougol Gheissi, Soudeh Ghorbani

Poster

CSLSC 2021

Work Experience

Microsoft

Consulting researcher

As a consulting researcher, I work with Dr. Kabbani and Dr. Ghalayini to design and deploy fast and scalable networking protocols.

2024

CCC Intelligent Solutions Company

Intern

During my internship, I designed and implemented a technique to increase the speed of data migrations between the company's remote storage servers.

2022

HPDS(High Performance Data Storage) Company

Intern

Responsible for automating the process of updating company's servers and performing FIO tests on them

2018

Darmaneh Company

Android Developer

Responsible for developing the Android and IOS application for Darmaneh Company, a startup that focused on creating a platform for virtual medical visits.

2016 - 2018

Skills

Programming Languages & Tools

Professional Service

  • Journal Reviewer for Computer Networks (2022-2024)
  • Journal Reviewer for Journal of Network and Computer Applications (2022-2024)
  • Journal Reviewer for Ad Hoc Networks (2022-2023)

Awards & Certifications

  • Involved in the team winning the CTF contest designed by Northrop Grumman in the Hophacks hackethon. (2019)
  • Ranked 387 among more than 260000 participants in nationwide university entrance exam. (2014)
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