Search Results for author: Aggelos Pikrakis

Found 6 papers, 2 papers with code

Can MusicGen Create Training Data for MIR Tasks?

no code implementations15 Nov 2023 Nadine Kroher, Helena Cuesta, Aggelos Pikrakis

We are investigating the broader concept of using AI-based generative music systems to generate training data for Music Information Retrieval (MIR) tasks.

Information Retrieval Music Information Retrieval +1

Improving Post-Processing of Audio Event Detectors Using Reinforcement Learning

1 code implementation19 Aug 2022 Petros Giannakopoulos, Aggelos Pikrakis, Yannis Cotronis

We apply post-processing to the class probability distribution outputs of audio event classification models and employ reinforcement learning to jointly discover the optimal parameters for various stages of a post-processing stack, such as the classification thresholds and the kernel sizes of median filtering algorithms used to smooth out model predictions.

Classification reinforcement-learning +1

A Deep Reinforcement Learning Approach for Audio-based Navigation and Audio Source Localization in Multi-speaker Environments

no code implementations25 Oct 2021 Petros Giannakopoulos, Aggelos Pikrakis, Yannis Cotronis

In this work we apply deep reinforcement learning to the problems of navigating a three-dimensional environment and inferring the locations of human speaker audio sources within, in the case where the only available information is the raw sound from the environment, as a simulated human listener placed in the environment would hear it.

reinforcement-learning Reinforcement Learning (RL) +2

A Deep Reinforcement Learning Approach to Audio-Based Navigation in a Multi-Speaker Environment

1 code implementation10 May 2021 Petros Giannakopoulos, Aggelos Pikrakis, Yannis Cotronis

In this work we use deep reinforcement learning to create an autonomous agent that can navigate in a two-dimensional space using only raw auditory sensory information from the environment, a problem that has received very little attention in the reinforcement learning literature.

Navigate reinforcement-learning +1

Online Co-movement Pattern Prediction in Mobility Data

no code implementations17 Feb 2021 Andreas Tritsarolis, Eva Chondrodima, Panagiotis Tampakis, Aggelos Pikrakis

In more detail, we split the original problem into two sub-problems, namely Future Location Prediction and Evolving Cluster Detection.

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