Search Results for author: Hyunwook Lee

Found 6 papers, 3 papers with code

TESTAM: A Time-Enhanced Spatio-Temporal Attention Model with Mixture of Experts

1 code implementation5 Mar 2024 Hyunwook Lee, Sungahn Ko

In this paper, we propose a novel deep learning model named TESTAM, which individually models recurring and non-recurring traffic patterns by a mixture-of-experts model with three experts on temporal modeling, spatio-temporal modeling with static graph, and dynamic spatio-temporal dependency modeling with dynamic graph.

Graph Attention Graph Embedding

TILDE-Q: A Transformation Invariant Loss Function for Time-Series Forecasting

1 code implementation26 Oct 2022 Hyunwook Lee, Chunggi Lee, Hongkyu Lim, Sungahn Ko

In this paper, we examine the definition of shape and distortions, which are crucial for shape-awareness in time-series forecasting, and provide a design rationale for the shape-aware loss function.

Dynamic Time Warping Time Series +1

A Visual Analytics System for Improving Attention-based Traffic Forecasting Models

no code implementations8 Aug 2022 Seungmin Jin, Hyunwook Lee, Cheonbok Park, Hyeshin Chu, Yunwon Tae, Jaegul Choo, Sungahn Ko

With deep learning (DL) outperforming conventional methods for different tasks, much effort has been devoted to utilizing DL in various domains.

Dynamic Time Warping

Learning to Remember Patterns: Pattern Matching Memory Networks for Traffic Forecasting

1 code implementation ICLR 2022 Hyunwook Lee, Seungmin Jin, Hyeshin Chu, Hongkyu Lim, Sungahn Ko

To evaluate the validness of the new perspective, we design a novel traffic forecasting model, called Pattern-Matching Memory Networks (PM-MemNet), which learns to match input data to the representative patterns with a key-value memory structure.

An Empirical Experiment on Deep Learning Models for Predicting Traffic Data

no code implementations12 May 2021 Hyunwook Lee, Cheonbok Park, Seungmin Jin, Hyeshin Chu, Jaegul Choo, Sungahn Ko

For example, it is difficult to figure out which models provide state-of-the-art performance, as recently proposed models have often been evaluated with different datasets and experiment environments.

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