Search Results for author: Alexandru Coca

Found 7 papers, 4 papers with code

GCDF1: A Goal- and Context- Driven F-Score for Evaluating User Models

1 code implementation EANCS 2021 Alexandru Coca, Bo-Hsiang Tseng, Bill Byrne

The evaluation of dialogue systems in interaction with simulated users has been proposed to improve turn-level, corpus-based metrics which can only evaluate test cases encountered in a corpus and cannot measure system’s ability to sustain multi-turn interactions.

Dialogue Evaluation Task-Oriented Dialogue Systems

uFACT: Unfaithful Alien-Corpora Training for Semantically Consistent Data-to-Text Generation

no code implementations Findings (ACL) 2022 Tisha Anders, Alexandru Coca, Bill Byrne

Our approach is to augment the training set of a given target corpus with alien corpora which have different semantic representations.

Data-to-Text Generation

LUCID: LLM-Generated Utterances for Complex and Interesting Dialogues

1 code implementation1 Mar 2024 Joe Stacey, Jianpeng Cheng, John Torr, Tristan Guigue, Joris Driesen, Alexandru Coca, Mark Gaynor, Anders Johannsen

Moreover, creating high quality dialogue data has until now required considerable human input, limiting both the scale of these datasets and the ability to rapidly bootstrap data for a new target domain.

Fine-grained Late-interaction Multi-modal Retrieval for Retrieval Augmented Visual Question Answering

1 code implementation NeurIPS 2023 Weizhe Lin, Jinghong Chen, Jingbiao Mei, Alexandru Coca, Bill Byrne

FLMR addresses two major limitations in RA-VQA's retriever: (1) the image representations obtained via image-to-text transforms can be incomplete and inaccurate and (2) relevance scores between queries and documents are computed with one-dimensional embeddings, which can be insensitive to finer-grained relevance.

Passage Retrieval Question Answering +2

Grounding Description-Driven Dialogue State Trackers with Knowledge-Seeking Turns

no code implementations23 Sep 2023 Alexandru Coca, Bo-Hsiang Tseng, Jinghong Chen, Weizhe Lin, Weixuan Zhang, Tisha Anders, Bill Byrne

Schema-guided dialogue state trackers can generalise to new domains without further training, yet they are sensitive to the writing style of the schemata.

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