Praveen Chandar Email and Phone Number
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8+ years of industry experience in Search, Recommendations, Large-scale Experimentation, and metric development. Strong emphasis and strength in translating state-of-art research into practice leading to highly impactful product outcomes. Led projects that spanned across missions and several teams working with data scientists, machine learning specialists, researchers, backend, and data engineers. Helped extensively in the hiring process to build research labs and advocated for inclusivity in hiring. Passionate about learning new technologies and efficient at prototyping ambitious ideas that help bootstrap innovative products.At Spotify, I've led various projects that include: development and implementation of processes to improve machine learning experimentation practices across several teams; high-level design of company-level ML infrastructure technologies such as Spotify Kubeflow; and contributions to the company-wide ML Tech Strategy. Previously, I've worked on developing search and conversational AI solutions for meeting scheduling (at X.AI), health care (at Columbia). At IBM, I've focused on the development & implementation of scalable interactive conversational AI agents with a focus on the human-compute-interaction aspects.I've worked on research and published research papers on different topics, including search, recommendations, experimentation, chatbots, and health care. Published >40 research papers at top conferences, such as WWW, SIGIR, WSDM, KDD, NeurIPS, and served as PC/SPC in several conferences.
Spotify
View- Website:
- spotify.com
- Employees:
- 17003
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Podcast And Talk Audio Recommendation Lead And Staff Research ScientistSpotifyAlexandria, Va, Us -
Podcast & Talk Audio Recommendation Lead & Staff Research ScientistSpotify Mar 2021 - PresentStockholm, Stockholm County, SeAs a tech lead, I work on integrating and expanding Podz (an AI-based Podcast Startup acquired by Spotify) into the company’s ecosystem as core part of the company’s podcast strategy. I lead the podcast recommendation efforts for Podz and Spotify Homepage, implementing neural recommender models for podcast discovery. -
Causal Ltv & Experimentation, Research LeadSpotify Dec 2019 - Apr 2021Stockholm, Stockholm County, SeI led the research efforts, working with researchers, data scientists, and engineers, to develop survival models to estimate the lifetime value (LTV) of users on the platform. We developed causal methods to estimate content values under counterfactual scenarios from observational data while accounting for confounders. As part of this work, we also devised practical guidelines on developing and evaluating modeled metrics such as LTV. The output of this work was published at top conferences and was integrated into the production workflow. -
Causal Learning & Off-Policy Evaluation, Senior Research ScientistSpotify Apr 2019 - Mar 2021Stockholm, Stockholm County, SeI worked with recommendation teams within Spotify (including Homepage recommendation) to develop state-of-art evaluation methodologies to enable rapid and reliable experimentation. Specifically, I developed methods to detect different sources of bias when working with historical user interaction data and developed approaches to address bias in training datasets. This work resulted in multiple publications at top conferences. These debiasing techniques were deployed at Spotify, leading to significant improvements in the production workflow. -
Ml Experimentation / Online-Offline Correlation, Tech LeadSpotify Mar 2020 - Dec 2020Stockholm, Stockholm County, SeI co-led initiatives across multiple divisions, working with different ML teams to develop ML best practices within the company. We identified peer-reviews as an effective platform for teams to share best-practice, real-world learnings and obtain feedback on their end-to-end ML processes. We created detailed templates for teams to document their experimentation process and created a process to conduct peer-reviews in a structured manner. Following this process, multiple teams reported significant improvements in their ML experimentation practice. -
Mixed Methods Metric Development, Research ScientistSpotify Sep 2017 - Mar 2019Stockholm, Stockholm County, SeI worked with user researchers, data scientists, and engineers to develop metrics for recommendation and search systems within Spotify. We adopted mixed methods research to develop metrics that align with users' needs. The metrics developed are still used in production by various teams. Recently, we presented a tutorial at the KDD Conference 2021, sharing our 5-step framework for developing metrics. -
Query Autocomplete LeadSpotify Sep 2018 - Feb 2019Stockholm, Stockholm County, Se -
Research Staff MemberIbm Research Mar 2016 - Aug 2017At IBM Research AI, my work focused on developing new methods to instantiate interactive conversational AI agents for various business applications. My role involved: (1) building and deploying domain-specific conversational IR systems for HR domains, (2) conducting user studies and controlled experiments to better understand user needs and evaluate conversational systems, and (3) closely working with engineering teams to productionize research prototypes. The work resulted in patents, publications at top conferences, as well as productization of the prototype for instantiating serverless AI agents as a service within IBM Bluemix Cloud.
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Data Science LeadX.Ai Apr 2015 - Mar 2016New York, UsAt X.AI, I led a small team of data scientists and engineers to build NLP components of a dialogue system. Our team developed temporal expression extractors, location and person entity detectors, and email parsers. My role involved writing production code, advising and mentoring junior data scientists, effectively bridging communication gaps between the data science and engineering teams, and helping hire new talent. -
Postdoctoral Research ScientistColumbia University In The City Of New York Sep 2014 - Apr 2015New York, Ny, UsAt Columbia, I built dialog systems that enabled easier access of clinical data to researchers. Specifically, I built a framework to analyze the information needs of clinical researchers and developed ML algorithms to enrich medical terminologies.Mentor: Dr. Chunhua Weng -
Research AssistantUniversity Of Delaware Feb 2009 - Jul 2014Newark, De, Us -
Summer InternIbm T. J. Watson Research Center, Jun 2013 - Aug 2013
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Search Relevance InternOneriot Jun 2010 - Aug 2010
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InternChennai Hi-Tech Pvt. Ltd May 2008 - Jul 2008
Praveen Chandar Skills
Praveen Chandar Education Details
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University Of DelawareComputer Science -
Anna University ChennaiComputer Science
Frequently Asked Questions about Praveen Chandar
What company does Praveen Chandar work for?
Praveen Chandar works for Spotify
What is Praveen Chandar's role at the current company?
Praveen Chandar's current role is Podcast and Talk Audio Recommendation Lead and Staff Research Scientist.
What is Praveen Chandar's email address?
Praveen Chandar's email address is se****@****ail.com
What is Praveen Chandar's direct phone number?
Praveen Chandar's direct phone number is +120131*****
What schools did Praveen Chandar attend?
Praveen Chandar attended University Of Delaware, Anna University Chennai.
What skills is Praveen Chandar known for?
Praveen Chandar has skills like Machine Learning, Information Retrieval, Java, Python, Natural Language Processing, Computer Science, Text Mining, Latex, C++, C, Unix, Algorithms.
Who are Praveen Chandar's colleagues?
Praveen Chandar's colleagues are Angie Chan, Laura Beckham, Sima Rani, Phi Long Undefined, Chelsea Medina, Lee Van Anh, Far Sean.
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