Search Results for author: James Alfred Walker

Found 12 papers, 8 papers with code

ETHER: Aligning Emergent Communication for Hindsight Experience Replay

no code implementations28 Jul 2023 Kevin Denamganaï, Daniel Hernandez, Ozan Vardal, Sondess Missaoui, James Alfred Walker

We show that the referential game's agents make an artificial language emerge that is aligned with the natural-like language used to describe goals in the BabyAI benchmark and that it is expressive enough so as to also describe unsuccessful RL trajectories and thus provide feedback to the RL agent to leverage the linguistic, structured information contained in all trajectories.

Inductive Bias Instruction Following +1

Learning to Select SAT Encodings for Pseudo-Boolean and Linear Integer Constraints

1 code implementation18 Jul 2023 Felix Ulrich-Oltean, Peter Nightingale, James Alfred Walker

We show that it is possible to select encodings effectively using a standard set of features for constraint problems; however we obtain better performance with a new set of features specifically designed for the pseudo-Boolean and linear constraints.

Interactive Storytelling for Children: A Case-study of Design and Development Considerations for Ethical Conversational AI

no code implementations20 Jul 2021 ennifer Chubba, Sondess Missaouib, Shauna Concannonc, Liam Maloneyb, James Alfred Walker

Conversational Artificial Intelligence (CAI) systems and Intelligent Personal Assistants (IPA), such as Alexa, Cortana, Google Home and Siri are becoming ubiquitous in our lives, including those of children, the implications of which is receiving increased attention, specifically with respect to the effects of these systems on children's cognitive, social and linguistic development.

Decision Making Ethics

Quality Evolvability ES: Evolving Individuals With a Distribution of Well Performing and Diverse Offspring

1 code implementation19 Mar 2021 Adam Katona, Daniel W. Franks, James Alfred Walker

We propose Quality Evolvability ES, a method that simultaneously optimizes for task performance and evolvability and without this restriction.

On (Emergent) Systematic Generalisation and Compositionality in Visual Referential Games with Straight-Through Gumbel-Softmax Estimator

1 code implementation19 Dec 2020 Kevin Denamganaï, James Alfred Walker

Nevertheless, while shown robust with symbolic stimuli, the effect of the batch size is not so clear-cut when dealing with visual stimuli.

Sentence

ReferentialGym: A Nomenclature and Framework for Language Emergence & Grounding in (Visual) Referential Games

1 code implementation17 Dec 2020 Kevin Denamganaï, James Alfred Walker

Firstly, a nomenclature is proposed to understand the main initiatives in studying language emergence and grounding, accounting for the variations in assumptions and constraints.

Multimodal Joint Emotion and Game Context Recognition in League of Legends Livestreams

1 code implementation31 May 2019 Charles Ringer, James Alfred Walker, Mihalis A. Nicolaou

Video game streaming provides the viewer with a rich set of audio-visual data, conveying information both with regards to the game itself, through game footage and audio, as well as the streamer's emotional state and behaviour via webcam footage and audio.

Time to Die: Death Prediction in Dota 2 using Deep Learning

1 code implementation21 May 2019 Adam Katona, Ryan Spick, Victoria Hodge, Simon Demediuk, Florian Block, Anders Drachen, James Alfred Walker

Even though death events are rare within a game (1\% of the data), the model achieves 0. 377 precision with 0. 725 recall on test data when prompted to predict which of any of the 10 players of either team will die within 5 seconds.

Dota 2

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