Search Results for author: Sam Witteveen

Found 11 papers, 6 papers with code

Textgraphs-15 Shared Task System Description : Multi-Hop Inference Explanation Regeneration by Matching Expert Ratings

1 code implementation NAACL (TextGraphs) 2021 Sureshkumar Vivek Kalyan, Sam Witteveen, Martin Andrews

Creating explanations for answers to science questions is a challenging task that requires multi-hop inference over a large set of fact sentences.

Retrieval

Investigating Prompt Engineering in Diffusion Models

no code implementations21 Nov 2022 Sam Witteveen, Martin Andrews

With the spread of the use of Text2Img diffusion models such as DALL-E 2, Imagen, Mid Journey and Stable Diffusion, one challenge that artists face is selecting the right prompts to achieve the desired artistic output.

Prompt Engineering

Red Dragon AI at TextGraphs 2021 Shared Task: Multi-Hop Inference Explanation Regeneration by Matching Expert Ratings

1 code implementation27 Jul 2021 Vivek Kalyan, Sam Witteveen, Martin Andrews

Creating explanations for answers to science questions is a challenging task that requires multi-hop inference over a large set of fact sentences.

Retrieval

Red Dragon AI at TextGraphs 2020 Shared Task: LIT : LSTM-Interleaved Transformer for Multi-Hop Explanation Ranking

1 code implementation28 Dec 2020 Yew Ken Chia, Sam Witteveen, Martin Andrews

Explainable question answering for science questions is a challenging task that requires multi-hop inference over a large set of fact sentences.

Question Answering Re-Ranking

Paraphrasing with Large Language Models

no code implementations WS 2019 Sam Witteveen, Martin Andrews

Recently, large language models such as GPT-2 have shown themselves to be extremely adept at text generation and have also been able to achieve high-quality results in many downstream NLP tasks such as text classification, sentiment analysis and question answering with the aid of fine-tuning.

Language Modelling Large Language Model +6

Red Dragon AI at TextGraphs 2019 Shared Task: Language Model Assisted Explanation Generation

1 code implementation WS 2019 Yew Ken Chia, Sam Witteveen, Martin Andrews

The TextGraphs-13 Shared Task on Explanation Regeneration asked participants to develop methods to reconstruct gold explanations for elementary science questions.

Explanation Generation Language Modelling

Unsupervised Natural Question Answering with a Small Model

no code implementations WS 2019 Martin Andrews, Sam Witteveen

The recent (2019-02) demonstration of the power of huge language models such as GPT-2 to memorise the answers to factoid questions raises questions about the extent to which knowledge is being embedded directly within these large models.

Language Modelling Question Answering

Scene Graph Parsing by Attention Graph

no code implementations13 Sep 2019 Martin Andrews, Yew Ken Chia, Sam Witteveen

Scene graph representations, which form a graph of visual object nodes together with their attributes and relations, have proved useful across a variety of vision and language applications.

Relationships from Entity Stream

1 code implementation7 Sep 2019 Martin Andrews, Sam Witteveen

Relational reasoning is a central component of intelligent behavior, but has proven difficult for neural networks to learn.

Relational Reasoning Relation Network

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