Sara A. Metwalli
Doctoral Student at Keio University
Expertise: Data Science, Software Engineering, Quantum Computing
Education: Keio University

Sara A. Metwalli is a doctoral student researching quantum computing at Keio University in Tokyo. Originally from Egypt, Metwalli studied at Alexandria University where she earned her bachelor’s degree in electronics and communications engineering. Metwalli traveled to Tokyo to pursue her postgrad studies and, in 2018, earned her master’s degree in computer and communications engineering from the Tokyo Institute of Technology.  After finishing her master’s, she took a year off to learn about quantum mechanics and quantum physics while working as a part-time lecturer at Keio University and as a computer science instructor at Tokyo Coding Club. She is a content writer for SheCanCode and a lead for Women Who Code

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Grid computing illustration of hexagonal nodes connecting people and laptops to give the impression of a distributed grid network
Grid computing is used by industry and research professionals alike to divide complex tasks that can’t be performed on a single computer. Our expert explains how grid computing works.
Application Lifecycle Management (ALM) illustration of cartoons working on a software development project together
Application lifecycle management provides a structure to software development with five distinct stages. Our expert introduces you to ALM, how it works and its key benefits.
Data labeling computer vision interface labeling the system sees in a grocery store aisle
Data labeling is a crucial step for supervised machine learning algorithms. Here’s what you need to know about data labeling methods, advantages and best practices.
gamma distribution a finger points at a chalkboard. On the chalkboard is an illustration of a gamma distribution
The Gamma distribution is one of the most popular and commonly used continuous time distributions because it has many real-world applications. Here are some examples.
NPM woman with dark hair and glasses sitting at a desk and tying code into a computer
In web development, we often talk about npm but what does it do, exactly? Here’s what you need to know to install and use npm.
Data validation illustration of a person's hands holding a report and looking at a pie chart under a magnifying glass
Data validation is an essential step in any data workflow. Here’s everything you need to know about data validation types and how to do it yourself.
Graphical user interface (GUI) image of a person using a touch screen in car
A graphical user interface is made up of the icons and buttons users interact with to perform different tasks on any electronic device. Here’s how they work.
Superposition image of a cosmic event with an overlay of mathematical formulae
Superposition describes a quantum system’s ability to be in multiple states at the same time until it is measured.
Schrödinger’s Cat image of a cat laying on his back in a box and half asleep
Schrödinger’s Cat is a famous thought experiment that illustrates a paradox of quantum superposition. Here’s how it works.
CI Image of the steps of continuous integration (CI) written on a clear screen with arrows pointing from one step to the next. A blurred out person can be seen in the background.
CI (continuous integration) refers to the practice of tracking, testing and reporting new changes made to any body of code. Here’s why it’s important.
MySQL image of the MySQ logo that features a dolphin cresting over the Q and L
MySQL is a relational database management system that stores all the information you need to run complex websites. Here’s how it works.
Automation Testing person using touchscreen tablet
Automation testing validates if software is functioning as designed and meets the requirements for release into production.