Models of Large Language Models

A simple black-and-white drawing compares an irregular blob labeled “LLM,” filled with scattered eye shapes, to a similar blob labeled “LLM+RLHF”
Professor Ann Copestake
Date 04/03/2026 at 13.00 - 04/03/2026 at 14.00 Where Combination Room

A lunchtime seminar with Professor Ann Copestake who will explain the conceptual underpinnings of the Large Language Models that underpin systems such as ChatGPT.

A simple black-and-white drawing compares an irregular blob labeled “LLM,” filled with scattered eye shapes, to a similar blob labeled “LLM+RLHF”

Overview

Large Language Models (LLMs) are at the core of systems such as ChatGPT. I'll try to illustrate the conceptual underpinnings of LLMs, linking the ideas to much earlier approaches, including the pioneering work in the 1960s of three researchers who became Wolfson fellows: Karen Spärck Jones, Roger Needham and Mary Hesse. My aim is to develop intuitive models of the technology, so there will be lots of visual aids and no equations!

 

Speaker

Ann Copestake is Professor of Computational Linguistics at the Department of Computer Science and Technology in the University of Cambridge. She has worked on developing computer models of various aspects of human languages since the mid 1980s.

 

Details

This event is part of the Lunchtime Seminar Series organised by the Wolfson College Senior Members.

It is open to all, free to attend and there is no need to book.

Tea and coffee will be available for the audience.

 

Access

This event will take place in the Combination Room on the first floor of our main building. It has step-free access with a lift and there is an accessible toilet located on the first floor of the building.

 

Lunchtime Seminar Series

The Lunchtime Seminar Series provide an opportunity for students, Fellows and Senior Members to share their expertise in a friendly and supportive environment over lunch.

The seminars are held in the Combination Room from 13.00 for an hour on most Wednesdays during full term. The audience is encouraged to bring their lunch in on a tray and take part in the discussion.

Most people who attend are non-specialists, so the talk has to be aimed at a general audience and speakers are warned to avoid technical jargon. We very much encourage students to offer a paper and use this as an opportunity to try out their thesis ideas on listeners who come from all different academic disciplines. 

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