Search Results for author: Krzysztof Dembczynski

Found 6 papers, 1 papers with code

On the computational complexity of the probabilistic label tree algorithms

no code implementations1 Jun 2019 Robert Busa-Fekete, Krzysztof Dembczynski, Alexander Golovnev, Kalina Jasinska, Mikhail Kuznetsov, Maxim Sviridenko, Chao Xu

First, we show that finding a tree with optimal training cost is NP-complete, nevertheless there are some tractable special cases with either perfect approximation or exact solution that can be obtained in linear time in terms of the number of labels $m$.

Multi-class Classification

Multi-Target Prediction: A Unifying View on Problems and Methods

no code implementations7 Sep 2018 Willem Waegeman, Krzysztof Dembczynski, Eyke Huellermeier

Multi-target prediction (MTP) is concerned with the simultaneous prediction of multiple target variables of diverse type.

Matrix Completion Multi-Label Classification +2

Exact and efficient top-K inference for multi-target prediction by querying separable linear relational models

no code implementations14 Jun 2016 Michiel Stock, Krzysztof Dembczynski, Bernard De Baets, Willem Waegeman

Many complex multi-target prediction problems that concern large target spaces are characterised by a need for efficient prediction strategies that avoid the computation of predictions for all targets explicitly.

BIG-bench Machine Learning Collaborative Filtering +3

Online F-Measure Optimization

no code implementations NeurIPS 2015 Róbert Busa-Fekete, Balázs Szörényi, Krzysztof Dembczynski, Eyke Hüllermeier

In this paper, we study the problem of F-measure maximization in the setting of online learning.

On the Bayes-optimality of F-measure maximizers

no code implementations17 Oct 2013 Willem Waegeman, Krzysztof Dembczynski, Arkadiusz Jachnik, Weiwei Cheng, Eyke Hullermeier

The F-measure, which has originally been introduced in information retrieval, is nowadays routinely used as a performance metric for problems such as binary classification, multi-label classification, and structured output prediction.

Binary Classification General Classification +3

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