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Christos Christodoulopoulos

6 accepted papers

2025

VMDT: Decoding the Trustworthiness of Video Foundation Models

NeurIPS 2025poster

As foundation models become more sophisticated, ensuring their trustworthiness becomes increasingly critical; yet, unlike text and image, the video modality still lacks comprehensive trustworthiness benchmarks. We introduce VMDT (Video-Modal DecodingTrust), the first unified platform for evaluating…

Cited by 0SourcecodeScholar
2023

WebIE: Faithful and Robust Information Extraction on the Web

ACL 2023long

Extracting structured and grounded fact triples from raw text is a fundamental task in Information Extraction (IE). Existing IE datasets are typically collected from Wikipedia articles, using hyperlinks to link entities to the Wikidata knowledge base. However, models trained only on Wikipedia have l…

2023

mReFinED: An Efficient End-to-End Multilingual Entity Linking System

EMNLP 2023short findings

End-to-end multilingual entity linking (MEL) is concerned with identifying multilingual entity mentions and their corresponding entity IDs in a knowledge base. Existing works assumed that entity mentions were given and skipped the entity mention detection step due to a lack of high-quality multiling…

Cited by 0SourceScholar
2022

A Relation Extraction Dataset for Knowledge Extraction from Web Tables

COLING 2022main

Relational web-tables are significant sources of structural information that are widely used for relation extraction and population of facts into knowledge graphs. To transform the web-table data into knowledge, we need to identify the relations that exist between column pairs. Currently, there are…

2022

ReFinED: An Efficient Zero-shot-capable Approach to End-to-End Entity Linking

NAACL 2022industry

We introduce ReFinED, an efficient end-to-end entity linking model which uses fine-grained entity types and entity descriptions to perform linking. The model performs mention detection, fine-grained entity typing, and entity disambiguation for all mentions within a document in a single forward pass,…

2021

FEVEROUS: Fact Extraction and VERification Over Unstructured and Structured information

NeurIPS 2021poster

Fact verification has attracted a lot of attention in the machine learning and natural language processing communities, as it is one of the key methods for detecting misinformation. Existing large-scale benchmarks for this task have focused mostly on textual sources, i.e. unstructured information, a…

Cited by 270SourcecodeScholar