Search Results for author: Siamak Mehrkanoon

Found 23 papers, 20 papers with code

Data-Efficient Sleep Staging with Synthetic Time Series Pretraining

no code implementations13 Mar 2024 Niklas Grieger, Siamak Mehrkanoon, Stephan Bialonski

Analyzing electroencephalographic (EEG) time series can be challenging, especially with deep neural networks, due to the large variability among human subjects and often small datasets.

Brain Decoding EEG +3

GA-SmaAt-GNet: Generative Adversarial Small Attention GNet for Extreme Precipitation Nowcasting

1 code implementation18 Jan 2024 Eloy Reulen, Siamak Mehrkanoon

In light of this, we propose GA-SmaAt-GNet, a novel generative adversarial architecture that makes use of two methodologies aimed at enhancing the performance of deep learning models for extreme precipitation nowcasting.

Weather Forecasting

GD-CAF: Graph Dual-stream Convolutional Attention Fusion for Precipitation Nowcasting

1 code implementation15 Jan 2024 Lorand Vatamany, Siamak Mehrkanoon

In particular, we introduce Graph Dual-stream Convolutional Attention Fusion (GD-CAF), a novel approach designed to learn from historical spatiotemporal graph of precipitation maps and nowcast future time step ahead precipitation at different spatial locations.

Graph Attention Graph Embedding +2

A novel dual-stream time-frequency contrastive pretext tasks framework for sleep stage classification

1 code implementation15 Dec 2023 Sergio Kazatzidis, Siamak Mehrkanoon

Self-supervised learning addresses the challenge encountered by many supervised methods, i. e. the requirement of large amounts of annotated data.

EEG Self-Supervised Learning

TransCORALNet: A Two-Stream Transformer CORAL Networks for Supply Chain Credit Assessment Cold Start

1 code implementation30 Nov 2023 Jie Shi, Arno P. J. M. Siebes, Siamak Mehrkanoon

Thanks to the domain adaptation capability of the proposed model, the domain shift between the source and target domain is minimized.

Domain Adaptation

SAR-UNet: Small Attention Residual UNet for Explainable Nowcasting Tasks

1 code implementation12 Mar 2023 Mathieu Renault, Siamak Mehrkanoon

The accuracy and explainability of data-driven nowcasting models are of great importance in many socio-economic sectors reliant on weather-dependent decision making.

Decision Making

WF-UNet: Weather Fusion UNet for Precipitation Nowcasting

1 code implementation8 Feb 2023 Christos Kaparakis, Siamak Mehrkanoon

In particular, we propose the Weather Fusion UNet (WF-UNet) model, which utilizes the Core 3D-UNet model and integrates precipitation and wind speed variables as input in the learning process and analyze its influences on the precipitation target task.

Earth Observation Management

MSCDA: Multi-level Semantic-guided Contrast Improves Unsupervised Domain Adaptation for Breast MRI Segmentation in Small Datasets

1 code implementation4 Jan 2023 Sheng Kuang, Henry C. Woodruff, Renee Granzier, Thiemo J. A. van Nijnatten, Marc B. I. Lobbes, Marjolein L. Smidt, Philippe Lambin, Siamak Mehrkanoon

Deep learning (DL) applied to breast tissue segmentation in magnetic resonance imaging (MRI) has received increased attention in the last decade, however, the domain shift which arises from different vendors, acquisition protocols, and biological heterogeneity, remains an important but challenging obstacle on the path towards clinical implementation.

Contrastive Learning MRI segmentation +1

BAST: Binaural Audio Spectrogram Transformer for Binaural Sound Localization

1 code implementation8 Jul 2022 Sheng Kuang, Kiki van der Heijden, Siamak Mehrkanoon

Accurate sound localization in a reverberation environment is essential for human auditory perception.

GCN-FFNN: A Two-Stream Deep Model for Learning Solution to Partial Differential Equations

1 code implementation28 Apr 2022 Onur Bilgin, Thomas Vergutz, Siamak Mehrkanoon

In this way, the proposed GCN-FFNN model learns from two types of input representations, i. e. grid and graph data, obtained via the discretization of the PDE domain.

AA-TransUNet: Attention Augmented TransUNet For Nowcasting Tasks

1 code implementation10 Feb 2022 Yimin Yang, Siamak Mehrkanoon

Data driven modeling based approaches have recently gained a lot of attention in many challenging meteorological applications including weather element forecasting.

Multistream Graph Attention Networks for Wind Speed Forecasting

1 code implementation16 Aug 2021 Dogan Aykas, Siamak Mehrkanoon

Reliable and accurate wind speed prediction has significant impact in many industrial sectors such as economic, business and management among others.

Graph Attention Management

TENT: Tensorized Encoder Transformer for Temperature Forecasting

1 code implementation28 Jun 2021 Onur Bilgin, Paweł Mąka, Thomas Vergutz, Siamak Mehrkanoon

We show that compared to the classical encoder transformer, 3D convolutional neural networks, LSTM, and Convolutional LSTM, the proposed TENT model can better learn the underlying complex pattern of the weather data for the studied temperature prediction task.

Decision Making Weather Forecasting

Symbolic regression for scientific discovery: an application to wind speed forecasting

1 code implementation21 Feb 2021 Ismail Alaoui Abdellaoui, Siamak Mehrkanoon

Symbolic regression corresponds to an ensemble of techniques that allow to uncover an analytical equation from data.

Feature Engineering regression +1

Broad-UNet: Multi-scale feature learning for nowcasting tasks

1 code implementation12 Feb 2021 Jesus Garcia Fernandez, Siamak Mehrkanoon

We introduce Broad-UNet, a novel architecture based on the core UNet model, to efficiently address this problem.

Image-to-Image Translation Translation

Deep Graph Convolutional Networks for Wind Speed Prediction

1 code implementation25 Jan 2021 Tomasz Stańczyk, Siamak Mehrkanoon

In this way, the network learns the graph spatial structure and determines the strength of relations between the weather stations based on the historical weather data.

Management

Deep multi-stations weather forecasting: explainable recurrent convolutional neural networks

2 code implementations23 Sep 2020 Ismail Alaoui Abdellaoui, Siamak Mehrkanoon

Deep learning applied to weather forecasting has started gaining popularity because of the progress achieved by data-driven models.

Deep Attention Weather Forecasting

Deep Neural-Kernel Machines

no code implementations13 Jul 2020 Siamak Mehrkanoon

The convolutional pooling layer reduces the dimensionality of the multi-scale output representations.

SmaAt-UNet: Precipitation Nowcasting using a Small Attention-UNet Architecture

1 code implementation8 Jul 2020 Kevin Trebing, Tomasz Stanczyk, Siamak Mehrkanoon

Weather forecasting is dominated by numerical weather prediction that tries to model accurately the physical properties of the atmosphere.

Weather Forecasting

Wind speed prediction using multidimensional convolutional neural networks

1 code implementation4 Jul 2020 Kevin Trebing, Siamak Mehrkanoon

In particular, we show that compared to classical CNN-based models, the proposed model is able to better characterise the spatio-temporal evolution of the wind data by learning the underlying complex input-output relationships from multiple dimensions (views) of the input data.

Management

Deep brain state classification of MEG data

2 code implementations2 Jul 2020 Ismail Alaoui Abdellaoui, Jesus Garcia Fernandez, Caner Sahinli, Siamak Mehrkanoon

The experimental results of cross subject multi-class classification on the studied MEG dataset show that the inclusion of attention improves the generalization of the models across subjects.

Brain Decoding Classification +3

Higher order Matching Pursuit for Low Rank Tensor Learning

no code implementations7 Mar 2015 Yuning Yang, Siamak Mehrkanoon, Johan A. K. Suykens

In this paper, we propose higher order matching pursuit for low rank tensor learning problems with a convex or a nonconvex cost function, which is a generalization of the matching pursuit type methods.

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