Search Results for author: George Zerveas

Found 9 papers, 6 papers with code

Enhancing the Ranking Context of Dense Retrieval Methods through Reciprocal Nearest Neighbors

1 code implementation25 May 2023 George Zerveas, Navid Rekabsaz, Carsten Eickhoff

Sparse annotation poses persistent challenges to training dense retrieval models; for example, it distorts the training signal when unlabeled relevant documents are used spuriously as negatives in contrastive learning.

Contrastive Learning Retrieval +1

Unsupervised Multivariate Time-Series Transformers for Seizure Identification on EEG

1 code implementation3 Jan 2023 İlkay Yıldız Potter, George Zerveas, Carsten Eickhoff, Dominique Duncan

Epileptic seizures are commonly monitored through electroencephalogram (EEG) recordings due to their routine and low expense collection.

EEG Electroencephalogram (EEG) +3

Improving Clinical Predictions through Unsupervised Time Series Representation Learning

no code implementations2 Dec 2018 Xinrui Lyu, Matthias Hueser, Stephanie L. Hyland, George Zerveas, Gunnar Raetsch

In this work, we investigate unsupervised representation learning on medical time series, which bears the promise of leveraging copious amounts of existing unlabeled data in order to eventually assist clinical decision making.

Decision Making Representation Learning +2

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