Search Results for author: Sara Silva

Found 9 papers, 4 papers with code

Testing the Segment Anything Model on radiology data

no code implementations20 Dec 2023 José Guilherme de Almeida, Nuno M. Rodrigues, Sara Silva, Nickolas Papanikolaou

Deep learning models trained with large amounts of data have become a recent and effective approach to predictive problem solving -- these have become known as "foundation models" as they can be used as fundamental tools for other applications.

Image Classification Image Segmentation +4

Biomedical Knowledge Graph Embeddings with Negative Statements

1 code implementation7 Aug 2023 Rita T. Sousa, Sara Silva, Heiko Paulheim, Catia Pesquita

Explicitly considering negative statements has been shown to improve performance on tasks such as entity summarization and question answering or domain-specific tasks such as protein function prediction.

Knowledge Graph Embedding Knowledge Graph Embeddings +4

Benchmark datasets for biomedical knowledge graphs with negative statements

no code implementations21 Jul 2023 Rita T. Sousa, Sara Silva, Catia Pesquita

We also generate knowledge graph embeddings for each dataset with two popular path-based methods and evaluate the performance in each task.

Disease Prediction Knowledge Graph Embeddings +1

Explainable Representations for Relation Prediction in Knowledge Graphs

1 code implementation22 Jun 2023 Rita T. Sousa, Sara Silva, Catia Pesquita

We propose SEEK, a novel approach for explainable representations to support relation prediction in knowledge graphs.

Knowledge Graph Embeddings Knowledge Graphs +1

Plotting time: On the usage of CNNs for time series classification

no code implementations8 Feb 2021 Nuno M. Rodrigues, João E. Batista, Leonardo Trujillo, Bernardo Duarte, Mario Giacobini, Leonardo Vanneschi, Sara Silva

We present a novel approach for time series classification where we represent time series data as plot images and feed them to a simple CNN, outperforming several state-of-the-art methods.

Classification General Classification +3

Improving the Detection of Burnt Areas in Remote Sensing using Hyper-features Evolved by M3GP

1 code implementation31 Jan 2020 João E. Batista, Sara Silva

One problem found when working with satellite images is the radiometric variations across the image and different images.

A Study of Fitness Landscapes for Neuroevolution

no code implementations30 Jan 2020 Nuno M. Rodrigues, Sara Silva, Leonardo Vanneschi

Fitness landscapes are a useful concept to study the dynamics of meta-heuristics.

Evolutionary Algorithms

Ensemble Genetic Programming

1 code implementation21 Jan 2020 Nuno M. Rodrigues, João E. Batista, Sara Silva

Ensemble learning is a powerful paradigm that has been usedin the top state-of-the-art machine learning methods like Random Forestsand XGBoost.

Binary Classification Ensemble Learning

Unsure When to Stop? Ask Your Semantic Neighbors

no code implementations19 Jun 2017 Ivo Gonçalves, Sara Silva, Carlos M. Fonseca, Mauro Castelli

The usage of the proposed semantic stopping criteria in conjunction with the computation of optimal mutation/learning steps also results in small trees and neural networks.

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