Nima Mahmoudi

Nima Mahmoudi

PhD Student, Research Assistant, and Instructor

University of Alberta

York University

Seneca College

Biography

Nima Mahmoudi received the BS degrees in Electronics and Telecommunications and the MS degree in Digital Electronics from Amirkabir University of Technology, Tehran, Iran in 2014, 2016, and 2017 respectively. He is currently working towards the PhD degree in software engineering and intelligent systems at the University of Alberta, Edmonton, AB, Canada.

He is a Research Assistant at the University of Alberta and a visiting Research Assistant in the Performant and Available Computing Systems (PACS) lab at York University, Toronto, ON, Canada. His research interests include serverless computing, cloud computing, performance modelling, applied machine learning, and distributed systems. He is a student member of the IEEE.

Interests

  • Serverless Computing
  • Cloud Computing
  • Performance Modelling
  • Applied Machine Learning
  • Distributed Systems

Education

  • MSc in Digital Electronics, 2017

    Amirkabir University of Technology

  • BSc in Telecommunications, 2016

    Amirkabir University of Technology

  • BSc in Electronics, 2014

    Amirkabir University of Technology

Current Research

In our current research in Performance and Available Computing Systems (PACS) Lab at York University, we are using Queuing Theory and Semi-Markov Processes to build a performance model for serverless computing platforms, with adequate fidelity and tractability to be used for modelling large-scale deployments. You can check out our latest publications on our website.

Our paper in this research called “Performance Modeling of Serverless Computing Platforms’’ is still under review. In that paper, we were able to successfully model the performance metrics of AWS Lambda. We were also able to identify a key configuration in serverless computing platforms that can be used to optimize the overall performance of the system.

Serverless Computing

In our Serverless Computing research, our goal is to characterise and optimize the serverless computing platforms, making them adaptive and improving their performance.

In a previous study we modelled the transient aspect of the key performance metrics of modern serverless computing platforms and showed its accuracy on AWS Lambda. This work was published in the Sixth Workshop on Serverless Computing (WoSC'20) as part of the ACM Middleware conference. This work was an extension to our steady-state performance modelling paper which was published in IEEE Transactions on Cloud Computing (TCC).

In another previous study in Dependable and Distributed Systems Lab (DDSL) at the University of Alberta, we used workload profiling and machine learning to build an adaptive function placement algorithm for serverless computing platforms. The resulting algorithm was able to achieve a better performance than the state of the art using similar hardware to perform the computing tasks.

Computer Vision

My latest research in Computer Vision in Signal and Speech Processing Research Lab (SPRL) was on Multi-Target Object Tracking to produce high-quality object trajectories while maintaining low computational costs in order to be applicable for live implementation (e.g., autonomous vehicles). This research led to my master’s thesis and a journal paper titled “Multi-target tracking using CNN-based features: CNNMTT’’ published in Multimedia Tools and Applications. In this work we used the mid-layer output of custom-made Convolutional Neural Networks (CNN) as visual queues which combined with formal tracjectory models created smooth and stable tracking results. The resulting method was one of the top 4 methods in MOT Challenge Benchmark at the time.

In a previous research we used computer vision in Control of Multi-Vehicle Systems (CMVS) Lab in the field of robotics. Some of the projects completed between 2012-2017 included using computer vision for controlling Unmanned Ground Vehicles (UGVs) and Quadcopters and robust hand tracking using LBP features and Kalman Filters.

Experience

 
 
 
 
 

Part-Time Instructor

Seneca College

Jan 2020 – Present Toronto, ON, Canada
Instructor in School of Software Design and Data Science.
 
 
 
 
 

Research Assistant and Lab Coordinator

York University

Aug 2019 – Present Toronto, ON, Canada
Lab Coordinator and Research Assistant in PACS Lab @ York University under the supervision of Dr. H. Khazaei. Leading the “Optimizing the Performance of Serverless Computing Platforms” project. Developed the lab’s website using Wordpress and customized the front end.
 
 
 
 
 

Research Assistant

University of Alberta

Jul 2018 – Aug 2019 Edmonton, AB, Canada
Research Assistant in University of Alberta under the supervision of Dr. H. Khazaei working on various aspects of cloud computing. Led the “Optimizing the Performance of Serverless Computing Platforms” project. Used Python, Keras, and Tensorflow on Docker to optimize the performance of an example Serverless Computing system.
 
 
 
 
 

Founder and CTO

Luxintech

Jun 2015 – Mar 2018 Tehran, Iran
Founder and Developer of many IoT related products. Led a team of 4 technical staff in designing and implementing several smart home and industrial gadgets. Successfully went through three rounds of fundraising and one successful crowdfunding while dealing with sanctions and financial decline in the country. Designed and developed hardware, software, communication protocols, and web services. Developed on a wide range of microcontrollers using C/C++. Web services and computer interfacing were all done in Python and Django.
 
 
 
 
 

Research Assistant

Signal Processing Research Lab (SPRL), Amirkabir University of Technology

Dec 2014 – Jul 2017 Tehran, Iran
Working on my thesis on: Robust Vision-Based Simultaneous Multi-Target Tracking. where I use CNN-based features to score visual affinity among detection results. In my work I implemented a MOT tracker which performed near the state of the art on the publicly available dataset MOT16 while maintaining a frame rate of 11 FPS. Performed research on “Robust Vision-based Multi-Target Object Tracking”. Implementations done in MATLAB. Used MAP estimation, Object Motion Modeling, Kalman Filter, and Convolutional Neural Networks (CNN). Designed and developed a website for our Research Lab.
 
 
 
 
 

Android and Backend Developer

RedDesign Studio

Oct 2013 – Aug 2015 Tehran, Iran
Developer of several Android applications. Two of the applications were top seller Android applications in Iran.
 
 
 
 
 

Research Assistant

Control of Multi Vehicle Systems (CMVS), Amirkabir University of Technology

Oct 2012 – Jul 2017 Tehran, Iran
Performed research on using Computer Vision for controlling Unmanned Ground Vehicles (UGVs) and Quadcopters. Implemented robust hand tracking using LBP features and Kalman Filtering in MATLAB. Designed and implemented a multi-agent algorithm on UGVs leading a team of 5. Implemented a robust localization by fusing vision and encoder data on a UGV using OpenCV, implemented in C++. Led a team of 7 in desgining and implementation of the electronics of an Unmanned Ground Vehicle (UGV) including hardware design in Altium Designer, hardware programming in C, and interfacing with computer using Python.

Recent Publications

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