Search Results for author: Emilio Dorigatti

Found 8 papers, 3 papers with code

Approximately Bayes-Optimal Pseudo Label Selection

no code implementations17 Feb 2023 Julian Rodemann, Jann Goschenhofer, Emilio Dorigatti, Thomas Nagler, Thomas Augustin

We derive this selection criterion by proving Bayes optimality of the posterior predictive of pseudo-samples.

Additive models Pseudo Label

What cleaves? Is proteasomal cleavage prediction reaching a ceiling?

1 code implementation24 Oct 2022 Ingo Ziegler, Bolei Ma, Ercong Nie, Bernd Bischl, David Rügamer, Benjamin Schubert, Emilio Dorigatti

While direct identification of proteasomal cleavage \emph{in vitro} is cumbersome and low throughput, it is possible to implicitly infer cleavage events from the termini of MHC-presented epitopes, which can be detected in large amounts thanks to recent advances in high-throughput MHC ligandomics.

Benchmarking Denoising

Improved proteasomal cleavage prediction with positive-unlabeled learning

1 code implementation14 Sep 2022 Emilio Dorigatti, Bernd Bischl, Benjamin Schubert

Accurate in silico modeling of the antigen processing pathway is crucial to enable personalized epitope vaccine design for cancer.

Joint Debiased Representation and Image Clustering Learning with Self-Supervision

no code implementations14 Sep 2022 Shunjie-Fabian Zheng, JaeEun Nam, Emilio Dorigatti, Bernd Bischl, Shekoofeh Azizi, Mina Rezaei

However, existing methods for joint clustering and contrastive learning do not perform well on long-tailed data distributions, as majority classes overwhelm and distort the loss of minority classes, thus preventing meaningful representations to be learned.

Clustering Contrastive Learning +2

Robust and Efficient Imbalanced Positive-Unlabeled Learning with Self-supervision

1 code implementation6 Sep 2022 Emilio Dorigatti, Jonas Schweisthal, Bernd Bischl, Mina Rezaei

Learning from positive and unlabeled (PU) data is a setting where the learner only has access to positive and unlabeled samples while having no information on negative examples.

Knowledge Base Completion Medical Diagnosis +2

Uncertainty-aware Pseudo-label Selection for Positive-Unlabeled Learning

no code implementations31 Jan 2022 Emilio Dorigatti, Jann Goschenhofer, Benjamin Schubert, Mina Rezaei, Bernd Bischl

In this work, we thus propose to tackle the issues of imbalanced datasets and model calibration in a PUL setting through an uncertainty-aware pseudo-labeling procedure (PUUPL): by boosting the signal from the minority class, pseudo-labeling expands the labeled dataset with new samples from the unlabeled set, while explicit uncertainty quantification prevents the emergence of harmful confirmation bias leading to increased predictive performance.

Pseudo Label Uncertainty Quantification

Joint Debiased Representation Learning and Imbalanced Data Clustering

no code implementations11 Sep 2021 Mina Rezaei, Emilio Dorigatti, David Ruegamer, Bernd Bischl

We simultaneously train two deep learning models, a deep representation network that captures the data distribution, and a deep clustering network that learns embedded features and performs clustering.

Clustering Deep Clustering +2

Combining Graph Neural Networks and Spatio-temporal Disease Models to Predict COVID-19 Cases in Germany

no code implementations3 Jan 2021 Cornelius Fritz, Emilio Dorigatti, David Rügamer

The results corroborate the necessity of including mobility data and showcase the flexibility and interpretability of our approach.

BIG-bench Machine Learning

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