Search Results for author: Semin Kwak

Found 3 papers, 2 papers with code

Frequency analysis and filter design for directed graphs with polar decomposition

1 code implementation18 Dec 2023 Semin Kwak, Laura Shimabukuro, Antonio Ortega

This approach provides a novel interpretation in the node domain and reveals aspects of graph signals that may be overlooked with a singular measure of variation.

Traffic signal prediction on transportation networks using spatio-temporal correlations on graphs

2 code implementations27 Apr 2021 Semin Kwak, Nikolas Geroliminis, Pascal Frossard

Multivariate time series forecasting poses challenges as the variables are intertwined in time and space, like in the case of traffic signals.

Ranked #7 on Traffic Prediction on PEMS-BAY (RMSE metric)

Multivariate Time Series Forecasting Time Series +1

Travel time prediction for congested freeways with a dynamic linear model

no code implementations2 Sep 2020 Semin Kwak, Nikolas Geroliminis

We compare our prediction accuracy of travel time for freeways in California (I210-E and I5-S) under highly congested traffic conditions with those of other methods: the instantaneous travel time, k-nearest neighbor, support vector regression, and artificial neural network.

regression Time Series +1

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