Search Results for author: Gerasimos Lampouras

Found 23 papers, 6 papers with code

MULAN: A Multi Layer Annotated Dataset for Controllable Text-to-Image Generation

no code implementations3 Apr 2024 Petru-Daniel Tudosiu, Yongxin Yang, Shifeng Zhang, Fei Chen, Steven McDonagh, Gerasimos Lampouras, Ignacio Iacobacci, Sarah Parisot

To build MuLAn, we developed a training free pipeline which decomposes a monocular RGB image into a stack of RGBA layers comprising of background and isolated instances.

Prompt Engineering Text-to-Image Generation

Text-to-Code Generation with Modality-relative Pre-training

no code implementations8 Feb 2024 Fenia Christopoulou, Guchun Zhang, Gerasimos Lampouras

Large pre-trained language models have recently been expanded and applied to programming language tasks with great success, often through further pre-training of a strictly-natural language model--where training sequences typically contain both natural and (linearised) programming language.

Code Generation Language Modelling +2

Automatic Unit Test Data Generation and Actor-Critic Reinforcement Learning for Code Synthesis

1 code implementation20 Oct 2023 Philip John Gorinski, Matthieu Zimmer, Gerasimos Lampouras, Derrick Goh Xin Deik, Ignacio Iacobacci

The advent of large pre-trained language models in the domain of Code Synthesis has shown remarkable performance on various benchmarks, treating the problem of Code Generation in a fashion similar to Natural Language Generation, trained with a Language Modelling (LM) objective.

Code Generation Language Modelling +2

Exploring Data Augmentation for Code Generation Tasks

1 code implementation5 Feb 2023 Pinzhen Chen, Gerasimos Lampouras

Advances in natural language processing, such as transfer learning from pre-trained language models, have impacted how models are trained for programming language tasks too.

Code Summarization Code Translation +2

Topic-Aware Response Generation in Task-Oriented Dialogue with Unstructured Knowledge Access

1 code implementation10 Dec 2022 Yue Feng, Gerasimos Lampouras, Ignacio Iacobacci

To alleviate the problem of structured databases' limited coverage, recent task-oriented dialogue systems incorporate external unstructured knowledge to guide the generation of system responses.

Response Generation Sentence +1

Training Dynamics for Curriculum Learning: A Study on Monolingual and Cross-lingual NLU

1 code implementation22 Oct 2022 Fenia Christopoulou, Gerasimos Lampouras, Ignacio Iacobacci

Curriculum Learning (CL) is a technique of training models via ranking examples in a typically increasing difficulty trend with the aim of accelerating convergence and improving generalisability.

Natural Language Understanding Zero-Shot Cross-Lingual Transfer

PanGu-Coder: Program Synthesis with Function-Level Language Modeling

1 code implementation22 Jul 2022 Fenia Christopoulou, Gerasimos Lampouras, Milan Gritta, Guchun Zhang, Yinpeng Guo, Zhongqi Li, Qi Zhang, Meng Xiao, Bo Shen, Lin Li, Hao Yu, Li Yan, Pingyi Zhou, Xin Wang, Yuchi Ma, Ignacio Iacobacci, Yasheng Wang, Guangtai Liang, Jiansheng Wei, Xin Jiang, Qianxiang Wang, Qun Liu

We present PanGu-Coder, a pretrained decoder-only language model adopting the PanGu-Alpha architecture for text-to-code generation, i. e. the synthesis of programming language solutions given a natural language problem description.

Code Generation Language Modelling +2

Generalising Multilingual Concept-to-Text NLG with Language Agnostic Delexicalisation

no code implementations ACL 2021 Giulio Zhou, Gerasimos Lampouras

In this paper, we explore the application of multilingual models in concept-to-text and propose Language Agnostic Delexicalisation, a novel delexicalisation method that uses multilingual pretrained embeddings, and employs a character-level post-editing model to inflect words in their correct form during relexicalisation.

Text Generation

Conversation Graph: Data Augmentation, Training and Evaluation for Non-Deterministic Dialogue Management

2 code implementations29 Oct 2020 Milan Gritta, Gerasimos Lampouras, Ignacio Iacobacci

We propose the Conversation Graph (ConvGraph), a graph-based representation of dialogues that can be exploited for data augmentation, multi-reference training and evaluation of non-deterministic agents.

Data Augmentation Dialogue Management +3

Informed Sampling for Diversity in Concept-to-Text NLG

no code implementations Findings (EMNLP) 2021 Giulio Zhou, Gerasimos Lampouras

In this work, we propose to ameliorate this cost by using an Imitation Learning approach to explore the level of diversity that a language generation model can reliably produce.

Concept-To-Text Generation Imitation Learning

Show Us the Way: Learning to Manage Dialog from Demonstrations

no code implementations17 Apr 2020 Gabriel Gordon-Hall, Philip John Gorinski, Gerasimos Lampouras, Ignacio Iacobacci

We present our submission to the End-to-End Multi-Domain Dialog Challenge Track of the Eighth Dialog System Technology Challenge.

dialog state tracking Management +5

Extracting Linguistic Resources from the Web for Concept-to-Text Generation

no code implementations31 Oct 2018 Gerasimos Lampouras, Ion Androutsopoulos

Many concept-to-text generation systems require domain-specific linguistic resources to produce high quality texts, but manually constructing these resources can be tedious and costly.

Concept-To-Text Generation Sentence

Generating Texts with Integer Linear Programming

no code implementations31 Oct 2018 Gerasimos Lampouras, Ion Androutsopoulos

Content selection, for example, may greedily select the most important facts, which may require, however, too many words to express, and this may be undesirable when space is limited or expensive.

Concept-To-Text Generation Referring Expression +2

Sheffield at SemEval-2017 Task 9: Transition-based language generation from AMR.

no code implementations SEMEVAL 2017 Gerasimos Lampouras, Andreas Vlachos

This paper describes the submission by the University of Sheffield to the SemEval 2017 Abstract Meaning Representation Parsing and Generation task (SemEval 2017 Task 9, Subtask 2).

Language Modelling Machine Translation +1

Imitation learning for structured prediction in natural language processing

no code implementations EACL 2017 Andreas Vlachos, Gerasimos Lampouras, Sebastian Riedel

Imitation learning is a learning paradigm originally developed to learn robotic controllers from demonstrations by humans, e. g. autonomous flight from pilot demonstrations.

coreference-resolution Dependency Parsing +5

Generating Natural Language Descriptions from OWL Ontologies: the NaturalOWL System

no code implementations24 Apr 2014 Ion Androutsopoulos, Gerasimos Lampouras, Dimitrios Galanis

We present NaturalOWL, a natural language generation system that produces texts describing individuals or classes of OWL ontologies.

Sentence Text Generation

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