Roland Vollgraf

Publications36
h-index12
Citations3,837
Highly Influential Citations931
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Fashion-MNIST: a Novel Image Dataset for Benchmarking Machine Learning Algorithms
TLDR
We present Fashion-MNIST, a new dataset comprising of 28x28 grayscale images of 70,000 fashion products from 10 categories, with 7,000 images per category. Expand
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Contextual String Embeddings for Sequence Labeling
TLDR
We propose to leverage the internal states of a trained character language model to produce a novel type of word embedding which we refer to as contextual string embeddings. Expand
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FLAIR: An Easy-to-Use Framework for State-of-the-Art NLP
TLDR
We present FLAIR, an NLP framework designed to facilitate training and distribution of state-of-the-art sequence labeling, text classification and language models. Expand
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Pooled Contextualized Embeddings for Named Entity Recognition
TLDR
We propose a method in which we dynamically aggregate contextualized embeddings of each unique string that we encounter. Expand
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Texture Synthesis with Spatial Generative Adversarial Networks
TLDR
We introduce a new model for texture synthesis based on GAN learning based on spatial GANs. Expand
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Quadratic optimization for simultaneous matrix diagonalization
TLDR
In this paper, we present a new algorithm called QDIAG that splits the overall optimization problem into a sequence of simpler second order subproblems and show that the algorithm converges fast and reliably. Expand
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Learning Texture Manifolds with the Periodic Spatial GAN
TLDR
This paper introduces a novel approach to texture synthesis based on generative adversarial networks (GAN) (Goodfellow et al., 2014). Expand
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From grids to places
TLDR
We show that, starting with simulated grid-cells, a simple linear transformation maximizing sparseness leads to a localized representation similar to place fields. Expand
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Multi-variate Probabilistic Time Series Forecasting via Conditioned Normalizing Flows
TLDR
We propose a probabilistic method to model multi-variate temporal dynamics of time series via an autoregressive deep learning model, where the data distribution is represented by a conditioned normalizing flow. Expand
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Improved optimal linear filters for the discrimination of multichannel waveform templates for spike-sorting applications
TLDR
We derived optimal multichannel filters for waveform template discrimination in the time domain and compared their performance to those derived in the frequency domain. Expand
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