activity
20242026
most citedDE-COP: Detecting Copyrighted Content in Language Models Training Data

3 citations · 4 across the 10 of their papers we have counts for

collaborators

11 papers

cs.CR2026

ABSENTIA: Detecting Broken Access Control Vulnerabilities in Web Applications

André V. Duarte, Aditya Oke, Rui Melo +7

Broken access control, the failure of authorization, is one of the most prevalent web security risks. Unlike injection, a flow of untrusted input into a dangerous operation, author…

cs.CL2026

Sem-Detect: Semantic Level Detection of AI Generated Peer-Reviews

André V. Duarte, Brian Tufts, Aditya Oke +3

How can we distinguish whether a peer review was written by a human or generated by an AI model? We argue that, in this setting, authorship should not be attributed solely from the…

cs.CL2025

RECAP: Reproducing Copyrighted Data from LLMs Training with an Agentic Pipeline

André V. Duarte, Xuying li, Bin Zeng +3

If we cannot inspect the training data of a large language model (LLM), how can we ever know what it has seen? We believe the most compelling evidence arises when the model itself…

cs.CV2025

Deep Feedback Models

David Calhas, Arlindo L. Oliveira

Deep Feedback Models (DFMs) are a new class of stateful neural networks that combine bottom up input with high level representations over time. This feedback mechanism introduces d…

cs.CV2025

Deep Recurrence for Dynamical Segmentation Models

David Calhas, Arlindo L. Oliveira

While biological vision systems rely heavily on feedback connections to iteratively refine perception, most artificial neural networks remain purely feedforward, processing input i…

cs.CV2025★ 1 cited

Are ECGs enough? Deep learning classification of pulmonary embolism using electrocardiograms

Joao D. S. Marques, Arlindo L. Oliveira

Pulmonary embolism is a leading cause of out of hospital cardiac arrest that requires fast diagnosis. While computed tomography pulmonary angiography is the standard diagnostic too…

cs.CV2025

DIS-CO: Discovering Copyrighted Content in VLMs Training Data

André V. Duarte, Xuandong Zhao, Arlindo L. Oliveira +1

How can we verify whether copyrighted content was used to train a large vision-language model (VLM) without direct access to its training data? Motivated by the hypothesis that a V…

cs.AI2025

The role of positional encodings in the ARC benchmark

Guilherme H. Bandeira Costa, Miguel Freire, Arlindo L. Oliveira

The Abstraction and Reasoning Corpus challenges AI systems to perform abstract reasoning with minimal training data, a task intuitive for humans but demanding for machine learning…

cs.CV2024

The Role of Recurrency in Image Segmentation for Noisy and Limited Sample Settings

David Calhas, João Marques, Arlindo L. Oliveira

The biological brain has inspired multiple advances in machine learning. However, most state-of-the-art models in computer vision do not operate like the human brain, simply becaus…

cs.CL2024

LumberChunker: Long-Form Narrative Document Segmentation

André V. Duarte, João Marques, Miguel Graça +3

Modern NLP tasks increasingly rely on dense retrieval methods to access up-to-date and relevant contextual information. We are motivated by the premise that retrieval benefits from…

cs.CL2024★ 3 cited

DE-COP: Detecting Copyrighted Content in Language Models Training Data

André V. Duarte, Xuandong Zhao, Arlindo L. Oliveira +1

How can we detect if copyrighted content was used in the training process of a language model, considering that the training data is typically undisclosed? We are motivated by the…