

About us
PyData is an educational program of NumFOCUS, a 501(c)3 non-profit organization in the United States. PyData provides a forum for the international community of users and developers of data analysis tools to share ideas and learn from each other. The global PyData network promotes discussion of best practices, new approaches, and emerging technologies for data management, processing, analytics, and visualization. PyData communities approach data science using many languages, including (but not limited to) Python, Julia, and R.
The PyDataย Code of Conductย governs this meetup. To discuss any issues or concerns relating to the code of conduct or the behavior of anyone at a PyData meetup, please contact NumFOCUS Executive Director Leah Silen (+1 512-222-5449;ย [leah@numfocus.org](mailto:leah@numfocus.org)) or the group organizer.
Upcoming events
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Sept Meetup: Special AI Week Session
Moderna HQ, 325 Binney St, Cambridge, MA, USโ
We're back in action with a special three-speaker bonanza for Boston AI WeekWe'll start with an intro to building agents in multiple frameworks, move on to considerations around hosting LLMs and wrap up with a dive into responsible AI. Join us!
Do not arrive before 6:30pm!
๐ Schedule:
6:30โ7:00 โ Networking (doors open)
7:00โ7:10 โ Introduction
7:10โ7:35 โ Krithika Murugesan - Building Agentic AI Systems
7:35-8:00 - Sebastian Wallkรถtter - The physics behind (self-)hosting LLMs
8:00โ8:30 - Break
8:30-8:55 โ Ananya Sharma - Detecting and Mitigating Bias in Automated Mortgage Lending
9:30 โ End**IMPORTANT** You MUST fill out the registration form accurately in order to get access to the venue. No guests/drop-ins, all unregistered folks WILL be turned away
Krithika Murugesan
Title: Building Agentic AI Systems
Description: In this session, I will introduce the fundamentals of Agentic AI and demonstrate how to build intelligent, autonomous AI systems using modern frameworks such as LangGraph, LangSmith, and CrewAI. Participants will learn how AI agents reason, collaborate, use tools, maintain state, and execute complex workflows through practical examples and architecture patterns.Sebastian Wallkรถtter
Title: The physics behind (self-)hosting LLMs
Description: Why do output tokens cost more than input tokens? Why are batch API calls 50% cheaper than normal API calls? Where does the $/M token price come from in the first place? I want to answer this while building a cost model for a local LLM deployment. We'll cover compute, bandwidth, and vRAM dynamics and the effects of K/V cache, context window, quantization, GQA (grouped-query attention), and multi-request batching. Think of this as a (high-level) behind-the-scenes of a per-token LLM API.Ananya Sharma
Title: Detecting and Mitigating Bias in Automated Mortgage Lending
Description: How can an AI system discriminate without ever seeing protected attributes? This talk explores how automated mortgage models can reproduce historical lending disparities through proxy variables and biased data. It presents practical approaches for detecting and mitigating algorithmic bias using statistical fairness testing, explainability, model governance, and continuous monitoring (edited)๐Venue provided by Moderna
This, and all NumFOCUS-affiliated events and spaces, both in-person and online, are governed by a Code of Conduct:
๐ https://pydata.org/code-of-conduct/
โกโก**Speak at PyData!**โกโก
We are always looking for speakers! Sign up here and we'll be in touch:
๐ https://forms.gle/kfFZ5hiqA9W57Ewg7
โกโก**Sponsor an event!**โกโก
PyData events are free and open to all. Weโre always looking for sponsors and hosts. Get in touch to support the community:
๐ง boston@pydata.org55 attendees
Past events
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