My ICASSP 2018 highlights

This year’s ICASSP keywords are: generative adversarial networks (GANs), wavenet, speech enhancement, source separation, industry, music transcription, cover song identification, sampleCNN,¬†monophonic pitch tracking, and gated/dilated CNNs. This time, passionate scientific discussions happened in random sport bars at downtown Calgary – next to dirty snow piles that were melting.

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ISMIR 2017 highlights

This has been my first ISMIR ever, and I am thrilled for being part of this amazing community. It was fun to put faces (and hight, and weight) to these names I respect so much!

All awarded papers were amazing, and these are definitely in my list of highlights:
  • Choi et al. – every time I re-read this paper I am more impressed about the efforts they put in assessing the generalization capabilities of deep learning models. This work defines a high evaluation standard for those working in deep auto-tagging models!
  • Bittner et al. proposes a fully-convolutional model for tracking f0 contours in polyphonic music. The article has a brilliant introduction drawing parallelisms between their proposed fully-convolutional architecture and previous traditional models – making clear that it is worth building bridges between deep learning works and previous signal processing literature.
  • Oramas et al. – deep learning enables to easily combine information from many sources, such as: audio, text or images. They do so by combining representations extracted from audio-spectrograms, word-embeddings and ImageNet-based features. Moreover, they released a new dataset: MuMu, with 147,295 songs belonging to 31,471 albums.
  • Jansson et al.‘s work proposes a U-net model for singing voice separation. It seems that adding connections between layers at the same hierarchical level in the encoder and decoder for reconstructing masked audio signals is a good idea since several papers already reported good results using this setup.

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Impressions from ICASSP 2017

The signal processing community is very into machine learning. Although I am not sure of the implications of this fact, this intersection already produced very interesting results – such as Smaragdis et al.’s work. Lots of papers related to deep learning were presented. Although in many cases people were naively applying DNN or LSTMs to a new problem, there also was (of course) amazing work with inspiring ideas – I highlight some:

  • Koizumi et al. propose using reinforcement learning for source separation. This work introduces how to use reinforcement learning for audio signal processing.
  • Ewert et al. propose using a variant of dropout that can be used to induce models to learn specific structures by using information from weak labels.
  • Ting-Wei et al. propose doing frame-level predictions with a fully convolutional model that also uses gaussian kernel filters (first introduced by them) trained with clip-level annotations in a weakly-supervised learning setup.

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