Search Results for author: Franz J. Király

Found 23 papers, 2 papers with code

Designing Machine Learning Toolboxes: Concepts, Principles and Patterns

no code implementations13 Jan 2021 Franz J. Király, Markus Löning, Anthony Blaom, Ahmed Guecioueur, Raphael Sonabend

In particular, we develop a conceptual model for the AI/ML domain, with a new type system, called scientific types, at its core.

BIG-bench Machine Learning

mlr3proba: An R Package for Machine Learning in Survival Analysis

no code implementations18 Aug 2020 Raphael Sonabend, Franz J. Király, Andreas Bender, Bernd Bischl, Michel Lang

As machine learning has become increasingly popular over the last few decades, so too has the number of machine learning interfaces for implementing these models.

Benchmarking BIG-bench Machine Learning +1

Kernels for time series with irregularly-spaced multivariate observations

no code implementations18 Apr 2020 Ahmed Guecioueur, Franz J. Király

In this manuscript, we show that a "series kernel" that is general enough to represent irregularly-spaced multivariate time series may be built out of well-known "vector kernels".

Time Series Time Series Analysis +1

sktime: A Unified Interface for Machine Learning with Time Series

no code implementations17 Sep 2019 Markus Löning, Anthony Bagnall, Sajaysurya Ganesh, Viktor Kazakov, Jason Lines, Franz J. Király

We present sktime -- a new scikit-learn compatible Python library with a unified interface for machine learning with time series.

BIG-bench Machine Learning Time Series +2

Machine Learning Automation Toolbox (MLaut)

1 code implementation11 Jan 2019 Viktor Kazakov, Franz J. Király

In this paper we present MLaut (Machine Learning AUtomation Toolbox) for the python data science ecosystem.

Benchmarking BIG-bench Machine Learning

NIPS - Not Even Wrong? A Systematic Review of Empirically Complete Demonstrations of Algorithmic Effectiveness in the Machine Learning and Artificial Intelligence Literature

no code implementations18 Dec 2018 Franz J. Király, Bilal Mateen, Raphael Sonabend

Objective: To determine the completeness of argumentative steps necessary to conclude effectiveness of an algorithm in a sample of current ML/AI supervised learning literature.

Modeling outcomes of soccer matches

no code implementations4 Jul 2018 Alkeos Tsokos, Santhosh Narayanan, Ioannis Kosmidis, Gianluca Baio, Mihai Cucuringu, Gavin Whitaker, Franz J. Király

The parameters of the Bradley-Terry extensions are estimated by maximizing the log-likelihood, or an appropriately penalized version of it, while the posterior densities of the parameters of the hierarchical Poisson log-linear model are approximated using integrated nested Laplace approximations.

Predictive Independence Testing, Predictive Conditional Independence Testing, and Predictive Graphical Modelling

1 code implementation16 Nov 2017 Samuel Burkart, Franz J. Király

As a practical implementation of this link between the two workflows, we present a python package 'pcit', which implements our novel multivariate and conditional independence tests, interfacing the supervised learning API of the scikit-learn package.

Philosophy

Modelling Competitive Sports: Bradley-Terry-Élő Models for Supervised and On-Line Learning of Paired Competition Outcomes

no code implementations27 Jan 2017 Franz J. Király, Zhaozhi Qian

Prediction and modelling of competitive sports outcomes has received much recent attention, especially from the Bayesian statistics and machine learning communities.

Computational Efficiency Low-Rank Matrix Completion

Machine Learning in Falls Prediction; A cognition-based predictor of falls for the acute neurological in-patient population

no code implementations5 Jul 2016 Bilal A. Mateen, Matthias Bussas, Catherine Doogan, Denise Waller, Alessia Saverino, Franz J. Király, E Diane Playford

Conclusion: Predictive modelling has identified a simple yet powerful machine learning prediction strategy based on a single clinical test, the Trail test.

Specificity

Kernels for sequentially ordered data

no code implementations29 Jan 2016 Franz J. Király, Harald Oberhauser

We present a novel framework for kernel learning with sequential data of any kind, such as time series, sequences of graphs, or strings.

Time Series Time Series Analysis

Prediction and Quantification of Individual Athletic Performance

no code implementations5 May 2015 Duncan A. J. Blythe, Franz J. Király

We provide scientific foundations for athletic performance prediction on an individual level, exposing the phenomenology of individual athletic running performance in the form of a low-rank model dominated by an individual power law.

Matrix Completion

Learning with Algebraic Invariances, and the Invariant Kernel Trick

no code implementations28 Nov 2014 Franz J. Király, Andreas Ziehe, Klaus-Robert Müller

When solving data analysis problems it is important to integrate prior knowledge and/or structural invariances.

Clustering

Learning with Cross-Kernels and Ideal PCA

no code implementations10 Jun 2014 Franz J. Király, Martin Kreuzer, Louis Theran

We describe how cross-kernel matrices, that is, kernel matrices between the data and a custom chosen set of `feature spanning points' can be used for learning.

Matroid Regression

no code implementations4 Mar 2014 Franz J. Király, Louis Theran

At the heart of our approach is the so-called regression matroid, a combinatorial object associated to sparsity patterns, which allows to replace inversion of the large matrix with the inversion of a kernel matrix that is constant size.

regression

The Algebraic Approach to Phase Retrieval and Explicit Inversion at the Identifiability Threshold

no code implementations17 Feb 2014 Franz J. Király, Martin Ehler

We study phase retrieval from magnitude measurements of an unknown signal as an algebraic estimation problem.

regression Retrieval

Dual-to-kernel learning with ideals

no code implementations1 Feb 2014 Franz J. Király, Martin Kreuzer, Louis Theran

In this paper, we propose a theory which unifies kernel learning and symbolic algebraic methods.

Efficient Orthogonal Tensor Decomposition, with an Application to Latent Variable Model Learning

no code implementations12 Sep 2013 Franz J. Király

Decomposing tensors into orthogonal factors is a well-known task in statistics, machine learning, and signal processing.

Tensor Decomposition

Coherence and sufficient sampling densities for reconstruction in compressed sensing

no code implementations12 Feb 2013 Franz J. Király, Louis Theran

We give a new, very general, formulation of the compressed sensing problem in terms of coordinate projections of an analytic variety, and derive sufficient sampling rates for signal reconstruction.

Low-Rank Matrix Completion

The Algebraic Combinatorial Approach for Low-Rank Matrix Completion

no code implementations17 Nov 2012 Franz J. Király, Louis Theran, Ryota Tomioka

We present a novel algebraic combinatorial view on low-rank matrix completion based on studying relations between a few entries with tools from algebraic geometry and matroid theory.

Low-Rank Matrix Completion

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