Search Results for author: Jilin Hu

Found 16 papers, 6 papers with code

Orca: Ocean Significant Wave Height Estimation with Spatio-temporally Aware Large Language Models

no code implementations29 Jul 2024 Zhe Li, Ronghui Xu, Jilin Hu, Zhong Peng, Xi Lu, Chenjuan Guo, Bin Yang

By segmenting the limited buoy observational data temporally, encoding the buoys' locations spatially, and designing prompt templates, Orca capitalizes on the robust generalization ability of LLMs to estimate significant wave height effectively with limited data.

TrajCogn: Leveraging LLMs for Cognizing Movement Patterns and Travel Purposes from Trajectories

1 code implementation21 May 2024 Zeyu Zhou, Yan Lin, Haomin Wen, Qisen Xu, Shengnan Guo, Jilin Hu, Youfang Lin, Huaiyu Wan

Second, TrajCogn introduces a new trajectory prompt that integrates these patterns and purposes into LLMs, allowing the model to adapt to various tasks.

TFB: Towards Comprehensive and Fair Benchmarking of Time Series Forecasting Methods

1 code implementation29 Mar 2024 Xiangfei Qiu, Jilin Hu, Lekui Zhou, Xingjian Wu, Junyang Du, Buang Zhang, Chenjuan Guo, Aoying Zhou, Christian S. Jensen, Zhenli Sheng, Bin Yang

Next, we employ TFB to perform a thorough evaluation of 21 Univariate Time Series Forecasting (UTSF) methods on 8, 068 univariate time series and 14 Multivariate Time Series Forecasting (MTSF) methods on 25 datasets.

Benchmarking Multivariate Time Series Forecasting +2

LightPath: Lightweight and Scalable Path Representation Learning

1 code implementation19 Jul 2023 Sean Bin Yang, Jilin Hu, Chenjuan Guo, Bin Yang, Christian S. Jensen

Next, we propose a relational reasoning framework to enable faster training of more robust sparse path encoders.

Knowledge Distillation Relational Reasoning +1

Origin-Destination Travel Time Oracle for Map-based Services

no code implementations6 Jul 2023 Yan Lin, Huaiyu Wan, Jilin Hu, Shengnan Guo, Bin Yang, Youfang Lin, Christian S. Jensen

Given an origin (O), a destination (D), and a departure time (T), an Origin-Destination (OD) travel time oracle~(ODT-Oracle) returns an estimate of the time it takes to travel from O to D when departing at T. ODT-Oracles serve important purposes in map-based services.

Travel Time Estimation

A Crystal-Specific Pre-Training Framework for Crystal Material Property Prediction

no code implementations8 Jun 2023 Haomin Yu, Yanru Song, Jilin Hu, Chenjuan Guo, Bin Yang

To overcome these challenges, we propose the crystal-specific pre-training framework for learning crystal representations with self-supervision.

Attribute Physical Simulations +2

Pre-training General Trajectory Embeddings with Maximum Multi-view Entropy Coding

no code implementations29 Jul 2022 Yan Lin, Huaiyu Wan, Shengnan Guo, Jilin Hu, Christian S. Jensen, Youfang Lin

Spatio-temporal trajectories provide valuable information about movement and travel behavior, enabling various downstream tasks that in turn power real-world applications.

Contrastive Learning Data Augmentation

Weakly-supervised Temporal Path Representation Learning with Contrastive Curriculum Learning -- Extended Version

1 code implementation30 Mar 2022 Sean Bin Yang, Chenjuan Guo, Jilin Hu, Bin Yang, Jian Tang, Christian S. Jensen

In this setting, it is essential to learn generic temporal path representations(TPRs) that consider spatial and temporal correlations simultaneously and that can be used in different applications, i. e., downstream tasks.

Contrastive Learning Representation Learning +1

BaLeNAS: Differentiable Architecture Search via the Bayesian Learning Rule

no code implementations CVPR 2022 Miao Zhang, Jilin Hu, Steven Su, Shirui Pan, Xiaojun Chang, Bin Yang, Gholamreza Haffari

Differentiable Architecture Search (DARTS) has received massive attention in recent years, mainly because it significantly reduces the computational cost through weight sharing and continuous relaxation.

Neural Architecture Search Variational Inference

SOUP: Spatial-Temporal Demand Forecasting and Competitive Supply

no code implementations24 Sep 2020 Bolong Zheng, Qi Hu, Lingfeng Ming, Jilin Hu, Lu Chen, Kai Zheng, Christian S. Jensen

In this setting, an assignment authority is to assign agents to requests such that the average idle time of the agents is minimized.

Databases Signal Processing

Infinitely Wide Graph Convolutional Networks: Semi-supervised Learning via Gaussian Processes

no code implementations26 Feb 2020 Jilin Hu, Jianbing Shen, Bin Yang, Ling Shao

Graph convolutional neural networks~(GCNs) have recently demonstrated promising results on graph-based semi-supervised classification, but little work has been done to explore their theoretical properties.

Gaussian Processes General Classification

Recurrent Multi-Graph Neural Networks for Travel Cost Prediction

no code implementations13 Nov 2018 Jilin Hu, Chenjuan Guo, Bin Yang, Christian S. Jensen, Lu Chen

Origin-destination (OD) matrices are often used in urban planning, where a city is partitioned into regions and an element (i, j) in an OD matrix records the cost (e. g., travel time, fuel consumption, or travel speed) from region i to region j.

Learning to Route with Sparse Trajectory Sets---Extended Version

no code implementations22 Feb 2018 Chenjuan Guo, Bin Yang, Jilin Hu, Christian S. Jensen

In the second step, we exploit the above graph-like structure to achieve a comprehensive trajectory-based routing solution.

Clustering

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