About
15+ years of industry experience in Search, Advertising and Recommendations. My strength…
Contributions
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You're drowning in new Data Science technologies to learn. How can you stay afloat and master them all?
I’d always recommend to start with an application you are passionate about or is in line with your current professional goals - examples could include a recommender system or predictive model , a summarization task etc. Understand how you will evaluate quality (if you don’t have a handle on metrics make sure you understand those). Then play around using different techniques to solve a problem. Ideally use open source in this journey. It gives you the opportunity to go one level deeper and even modify the library and understand algorithms. Use online courses from top AI programs as a companion to learn in this journey.
Activity
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Honored and excited! 🎓✨ I am truly grateful to the University of Antwerp for awarding me an Honorary Doctorate in Science next month. This…
Honored and excited! 🎓✨ I am truly grateful to the University of Antwerp for awarding me an Honorary Doctorate in Science next month. This…
Liked by Hema Raghavan
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Integrating AI into enterprise workflows requires seamless collaboration between technology providers. Through our partnership with Snowflake, Kumo…
Integrating AI into enterprise workflows requires seamless collaboration between technology providers. Through our partnership with Snowflake, Kumo…
Shared by Hema Raghavan
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AI is moving fast. The best ideas come from people working together, experimenting, and pushing the limits of what’s possible. 💡 So Snowflake is…
AI is moving fast. The best ideas come from people working together, experimenting, and pushing the limits of what’s possible. 💡 So Snowflake is…
Liked by Hema Raghavan
Experience
Education
Licenses & Certifications
Publications
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Learning to Rank for Robust Question Answering
ACM International Conference on Information and Knowledge Management (CIKM)
This paper aims to solve the problem of improving the ranking of answer candidates for factoid based questions in a state-of-the-art Question Answering system. We first provide an extensive comparison of 5 ranking algorithms on two datasets – from the Jeopardy quiz show and a medical domain. We then show the effectiveness of a cascading approach, where the ranking produced by one ranker is used as input to the next stage. The cascading approach shows sizeable gains on both datasets. We finally…
This paper aims to solve the problem of improving the ranking of answer candidates for factoid based questions in a state-of-the-art Question Answering system. We first provide an extensive comparison of 5 ranking algorithms on two datasets – from the Jeopardy quiz show and a medical domain. We then show the effectiveness of a cascading approach, where the ranking produced by one ranker is used as input to the next stage. The cascading approach shows sizeable gains on both datasets. We finally evaluate several rank aggregation techniques to combine these algorithms, and find that Supervised Kemeny aggregation is a robust technique that always beats the baseline ranking approach used by Watson for the Jeopardy competition. We further corroborate our results on TREC
Question Answering datasets.
Patents
More activity by Hema
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Join my co-founder Hema Raghavan discussing Responsible AI at scale together with leaders from OpenAI and LinkedIn. Register at:…
Join my co-founder Hema Raghavan discussing Responsible AI at scale together with leaders from OpenAI and LinkedIn. Register at:…
Liked by Hema Raghavan
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I am excited to be doing a keynote and panel with Joaquin Quiñonero Candela from OpenAI and Sakshi Jain (LinkedIn) and Grace Tang (LinkedIn) in…
I am excited to be doing a keynote and panel with Joaquin Quiñonero Candela from OpenAI and Sakshi Jain (LinkedIn) and Grace Tang (LinkedIn) in…
Shared by Hema Raghavan
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I’m thrilled to welcome Aarathi Vidyasagar to Uber and join my leadership team as our VP of Engineering & Science, heading up one of Uber’s core…
I’m thrilled to welcome Aarathi Vidyasagar to Uber and join my leadership team as our VP of Engineering & Science, heading up one of Uber’s core…
Liked by Hema Raghavan
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Receiving the TIME 100 Impact Award with my parents in the audience was really special! They gave me a strong foundation in math and engineering…
Receiving the TIME 100 Impact Award with my parents in the audience was really special! They gave me a strong foundation in math and engineering…
Liked by Hema Raghavan
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Our online webinar sign up on Graph Transformers went through the roof! 1000+ signups in the short time since we posted. Inspired by that, we decided…
Our online webinar sign up on Graph Transformers went through the roof! 1000+ signups in the short time since we posted. Inspired by that, we decided…
Shared by Hema Raghavan
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✨ Breaking News ✨ : We've cracked the code on complex schema navigation in LLM-based text-to-SQL systems via Cortex Analyst! Snowflake Cortex…
✨ Breaking News ✨ : We've cracked the code on complex schema navigation in LLM-based text-to-SQL systems via Cortex Analyst! Snowflake Cortex…
Liked by Hema Raghavan
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Train your first graph-transformer based predictive model during your coffee break. Try the example notebooks: https://hubs.ly/Q037CXy20
Train your first graph-transformer based predictive model during your coffee break. Try the example notebooks: https://hubs.ly/Q037CXy20
Liked by Hema Raghavan
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Laying data down in a relational schema makes for a compact representation that is the backbone of all analytics. Now researchers at Kumo and…
Laying data down in a relational schema makes for a compact representation that is the backbone of all analytics. Now researchers at Kumo and…
Shared by Hema Raghavan
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📢 Revolutionizing Scientific Discovery with AI! 🚀🔬 Introducing POPPER—an AI agent that automates hypothesis validation with unprecedented speed…
📢 Revolutionizing Scientific Discovery with AI! 🚀🔬 Introducing POPPER—an AI agent that automates hypothesis validation with unprecedented speed…
Liked by Hema Raghavan
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Exciting to see Walmart Data Ventures push retail data sharing forward with Scintilla. This unlocks seamless access to Walmart’s first-party data for…
Exciting to see Walmart Data Ventures push retail data sharing forward with Scintilla. This unlocks seamless access to Walmart’s first-party data for…
Liked by Hema Raghavan
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AI is a core part of our platform but we’re about to take it to the next level with the arrival of Liang Zhang as our new leader for AI and Machine…
AI is a core part of our platform but we’re about to take it to the next level with the arrival of Liang Zhang as our new leader for AI and Machine…
Liked by Hema Raghavan
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Everything you need to know about Graph Transformers: Graph Transformers are set to transform how you work with relational data — without the hassle…
Everything you need to know about Graph Transformers: Graph Transformers are set to transform how you work with relational data — without the hassle…
Shared by Hema Raghavan
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