Sagar Joglekar, Ph.D.

Data Scientist

Expedia Group


I am a Data Scientist at the Expedia Group working with the Content Data Science team. Previously, I was a Reserch Scientist at Nokia Bell labs, Cambridge UK, working with the social dynamics team.

I am mainly interested in research problems that deal with quantification of human processes from web scale data using methods from complex networks, machine learning, and computer vision.

I was a King's India scholar at King's College London, where I worked on my Ph.D. in computer science at the Department of Informatics, under the guidance of Dr. Nishanth Sastry.

I have graduated with a Masters of Science (M.S.) degree from University of California at Santa Barbara - USA, majoring in signals processing and networks, and a Bachelors of Engineering (B.Eng) from University of Pune - India, majoring in Electronics engineering .


  • Complex Networks
  • Computer Vision
  • Computational Social Dynamics
  • Applied ML


  • Ph.D. in Computer Science, 2015 - 2019

    King's College, London, U.K.

  • Master of Sciences (M.S) , Major in Signals Processing and Networks, 2010 - 2012

    University of California, Santa Barbara, C.A. , U.S.A

  • B.Eng , Electronics Engineering, 2004 - 2008

    University of Pune, India



Data Scientist

Expedia Group

Jul 2021 – Present London, UK
I would be working on Data, Applications, and Content team, working on Expedia group's recommendation, curation, and ranking problems.

Research Scientist

Nokia Bell Labs

Jun 2019 – Jul 2021 Cambridge, UK
As a member of the Bell labs social dynamics team, I have been working on questions that try to redefine our relationships with data. I primarily work on problems dealing with machine learning and statistical inference with a stress on impacts on healthcare and urbanism. The work generally involves mathematically modelling an off-line phenomenon through the online data that it generates.

Head of Research


Apr 2016 – Jun 2017 London, UK
Research and Development. Advisor for all things ML

Senior Software engineer

Citrix systems

Feb 2012 – Sep 2015 Santa Barbara, California, USA
Development of distributed media encoder/decoder protocols for the client/server side libraries used in Citrix collaborations and conferencing products (e,g, GoToMeeting , GoToAssist, GoToWebinar)

Research Engineer

Infosys research Labs

Jul 2008 – Jul 2010 Bangalore/Pune India
Research, prototyping, and development hand over in state of the art DRM, multimedia security and delivery systems

Recent Posts

The cost of being on the fence.

After 2.5 years of association with Nokia Bell Labs, I have decided to move on to do something else. I will be moving into a more …

Press cover for our WWW 2020 paper: Stop Tracking Me Bro! Differential Tracking Of User Demographics On Hyper-partisan Websites

Super excited to see that our paper on measuring differential behaviour of ad-tracking ecosystem towards the consumers of …

Areas of work

Quantifying the Urban Exposome

The 21st century would witness one of the largest urban migration in human history. A lot of research has gone into understanding the effects of urban life on human physical and mental health. The results have been unanimous: The urban environment has long lasting impacts on our well being. These impacts , albeit sometime negative, are correctable using simple but effective measures. These interventions often come in the form of urban design changes or changes in the way people use the city.

Social networks and health

We as a soceity have accepted the internet as an extension of the self. The online disinhibition effect sometimes allows us to open up to strangers online. This means, sometimes, the internet fills the gaps in intimacy, care, and support craved by the millions who are suffering or under distress. In this project, I explore the world of online support forums, using methods from complex networks and NLP to understand the nature of online support.

Measuring the partisan web and its effects

The internet has made seamless access to information, a reality. As a result, a lot of issues of the offline world, are now being voiced, shared, and discussed on the internet; including but not limited to partisan and hot button issues. As a result, phenomenona like fake news and partisan news have become a central theme for inter-disciplinary research. This project links together all the works done to investigate the hyper-partisan ecosystem and other social media processes that may have profound effects on how democracy functions in our post internet world

About engagment and networked systems

There has been a large churn of new ideas, exploring new ways to network people and their content. From primacy driven social media platforms like Tik-tok, Vine and Instagram, to a more decentralized socially curated content platform like Mastodom. Here I explore models, methods and pipelines to measure how humans adopt and interact with these new and innovative platforms.

Miscellaneous projects

Some miscellanious projects on Digital convergence, DRM, steganography, Computervision and networks

Selected Publications

Quickly discover relevant content by filtering publications.

Jane Jacobs in the Sky: Predicting Urban Vitality with Open Satellite Data

The presence of people in an urban area throughout the day – often called ‘urban vitality’ – is one of the …

KAIROS: Talking Heads and Moving Bodies for Successful Meetings

Successful meetings create a safe environment for contribution; one that attendees feel engaged in and part of. Previous research has …

Ranking comment sorting policies in online debates

Online debates typically possess a large number of argumentative comments. Most readers who would like to see which comments are …

MeetCues: Supporting Online Meetings Experience

The remote work ecosystem is transforming patterns of communication between teams and individuals located at distance. Particularly, …

Humane Visual AI: Telling the Stories Behind a Medical Condition

A biological understanding is key for managing medical conditions, yet psychological and social aspects matter too. The main problem is …

Recent & Upcoming Talks

Ph.D. Defence talk