Search Results for author: Alejandro Sanchez Guinea

Found 4 papers, 1 papers with code

Unsupervised Driving Event Discovery Based on Vehicle CAN-data

no code implementations12 Jan 2023 Thomas Kreutz, Ousama Esbel, Max Mühlhäuser, Alejandro Sanchez Guinea

With our approach, we evaluate the applicability of recent time series-related contrastive and generative SSL techniques to learn representations that distinguish driving events.

Contrastive Learning Self-Supervised Learning +2

Unsupervised 4D LiDAR Moving Object Segmentation in Stationary Settings with Multivariate Occupancy Time Series

1 code implementation30 Dec 2022 Thomas Kreutz, Max Mühlhäuser, Alejandro Sanchez Guinea

In this work, we address the problem of unsupervised moving object segmentation (MOS) in 4D LiDAR data recorded from a stationary sensor, where no ground truth annotations are involved.

Clustering Semantic Segmentation +2

Enhancing Privacy via Hierarchical Federated Learning

no code implementations23 Apr 2020 Aidmar Wainakh, Alejandro Sanchez Guinea, Tim Grube, Max Mühlhäuser

Federated learning suffers from several privacy-related issues that expose the participants to various threats.

Cryptography and Security

On computable abstractions (a conceptual introduction)

no code implementations29 Aug 2014 Alejandro Sanchez Guinea

This paper introduces abstractions that are meaningful for computers and that can be built and used according to computers' own criteria, i. e., computable abstractions.

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