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Neural Networks for Information Retrieval
A novel large-memory neural network as an aid in medical diagnosis applications.
At that time not only were the models not mature enough, but training data was scarce when compared to the amounts of data now some companies have access to. For example, a recent study run at Pandora Radio shows that waveform-based models can outperform spectrogram-based ones provided that enough training data is available. Another historically remarkable piece of work comes from Humphrey and Bello who, during these days, were proposing to use deep neural networks for chord recognition. Broadly speaking, one can divide this field into two main research areas: music information retrieval, which aims to design models capable to recognize the semantics present in music signals; and algorithmic composition, with the goal to computationally generate new appealing music pieces.
Both fields are currently thriving with the research community steadily advancing! But actual researchers do not only intend to improve the performance of such models. They are also studying how to increase its interpretability, or how to reduce its computational footprint. Furthermore, as previously mentioned, there is a strong interest in designing architectures capable of directly dealing with waveforms for a large variety of tasks.
However, researchers have not yet succeeded in designing a generic strategy that enables waveform-based models to solve a wide range of problems — something that would allow the broad applicability of end-to-end classifiers. Another group of researchers is also exploring the edge of science to improve algorithmic composition methods.
But now is time for modern generative models, like GANs generative adversarial networks or VAEs variational auto-encoders. Interestingly enough: these modern generative models are not only being used to compose novel scores in symbolic format, but models like WaveGAN or Wavenet can be a tool to explore novel timbral spaces or to render new songs directly in the waveform domain as opposed to composing novel MIDI scores.
Neural networks are now enabling tools and novel approaches! Tasks like music source separation or music transcription considered the Holy Grail among music technologists are now revisited from the deep learning perspective. A new generation of researchers are currently searching for innovative ways to put the pieces together, experimenting with novel tasks, and using neural networks as an instrument for creativity — which can lead to novel ways for humans to interact with music.
Do you want to be one of those shaping that future?
Learnings from European Conference on Information Retrieval 2018
Skip this section if you are not a motivated scholar This post is based on a tutorial presentation I prepared some months ago. The first time someone used LSTMs for music:. The first time someone processed spectrograms with neural networks:.
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The first time someone built an end-to-end music classifier:. Students' final grades will be determined based on the final exam, which will be an oral exam covering material from lectures and their associated readings. In order to be eligible to take the final exam, students must pass all four assignments. Final exam time slots for each student will be announced via email. Assignments will involve reading several scientific papers in order to answer an essay prompt by critically discussing the papers.
For each assignment, students will individually read one or more research papers and submit a report discussing the reading and answering the assignment questions. Reports must critically discuss the assigned papers and demonstrate understanding of the topic; simply summarizing them will not be sufficient to receive a passing grade. Reports must cite all sources used. The recommended report length is three pages. Assignments will be given one of four grades: Fail, Pass, Good, or Excellent.
Students are allowed to re-submit one failed assignment within two weeks of the assignment deadline.
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Any assignment that is not submitted by the deadline will be considered failed. Receiving a grade of Excellent gives you one bonus point. Two Good grades count as one Excellent. For example, if your final exam grade is 1. Students who fail the final exam also fail the course regardless of their assignment grades.
Deutsch Location Press. Type: Advanced lecture Lecturer: Dr. Summary In this course we will be investigating advanced topics in Information Retrieval, with a focus on neural network methods and how they contrast with prior work. Prerequisites Students should have a basic knowledge of Machine Learning.