How do artificial intelligence (AI) algorithms learn to predict and make decisions? Can we entrust them with decisions that affect our lives and societies? Are they neutral and as immune to societal imperfections as commonly thought?
Nello Cristianini (University of Bristol) investigates the challenges emerging from data-driven AI, addressing issues such as gender biases in AI algorithms, and shifts in people’s emotions reflected in social media content.
Watch an introduction to Nello’s research below:
Video from the European Research Council
You can find out more about specific projects below:
This work involved development of a model of an autonomous agent that allows researchers to distinguish various types of control that intelligent software agents can exert on users. The framework of this model allows different types of interaction (i.e. trading, nudging, coercion and deception) to be separated, and presents a unified narrative for discussion of important ethical, psychological and social issues.
The research team addressed the critical issue of trust in AI, proposing a new high standard for models to meet (being agnostic to a protected concept), and a way to achieve such models.
In this research, Nello and his team reviewed empirical studies concerning the deployment of algorithms to predict personal information using online data. They were interested in understanding what kind of psychological information can be inferred on the basis of our online activities, and whether an intelligent system could use this information to improve its ability to subsequently steer our behaviour towards its own goals.
This research considers some of the shortcuts that were taken in the field and their connection to some of today’s challenges in AI, including those relating to bias, value alignment, privacy and explainability.
Many of these challenges arise from use of training data generated by various social processes. Therefore, it is critical for us to consider the interface between social sciences and computational sciences. The analysis of media content (both traditional and new media) is necessary to understand what we use to train our models. This was the motivation behind the final project highlighted here:
Developed by Nello and his team, History Playground enables users to search for small sequences of words and retrieve their relative frequencies over the course of history. The tool makes use of scalable algorithms to first extract trends from textual corpora, before making them available for real-time search and discovery, presenting users with an interface to explore the data.
Nello Cristianini is a Professor of Artificial Intelligence at the University of Bristol. His research interests include data science, artificial intelligence, machine learning, and applications to computational social sciences, digital humanities and news content analysis.