Skip to content

park4264/Spatial-Temporal-GNNs

Repository files navigation

Spatial-Temporal Graph Neural Networks

  • ๋ฐ•ํƒœ์ค€, 2023.01 ~
  • (Spatial-Temporal) Graph Neural Networks๋ฅผ ๊ณต๋ถ€ํ•ฉ๋‹ˆ๋‹ค.
  • Deep Learning์„ ์ด์šฉํ•ด ์—ฐ๊ด€๋œ CV, NLP ๊นŒ์ง€์˜ ์‘์šฉ์„ ๊ณต๋ถ€ํ•ฉ๋‹ˆ๋‹ค.

Spatio-Temporal Data?

  • ์ €๋Š” ํ˜„์žฌ ์„œ์šธ๋Œ€ํ•™๊ต ๊ณต๊ฐ„ํ†ต๊ณ„์—ฐ๊ตฌ์‹ค[Link]์—์„œ ๊ณต๋ถ€์ค‘์ž…๋‹ˆ๋‹ค.

  • ๊ณต๊ฐ„ํ†ต๊ณ„(Spatial Statistics)๋ž€

    • As a sub-field of Statistics,
    • Work on methodology for analyzing various spatial data or spatio-temporal data.
    • Develop supporting theory of such methodology.
    • Getting popular as more spatial and/or spatio-temporal data available.
    • Data are spatially referenced so that each data point is associated with the location information.
  • ์„์‚ฌ ํ•™์œ„ ๋…ผ๋ฌธ์œผ๋กœ ์‹œ๊ณต๊ฐ„๋ฐ์ดํ„ฐ(Spatio-Temporal Data)์— ๋Œ€ํ•ด ๋‹ค๋ฃจ๋ฉฐ Spatio-Temporal Data์˜ ํ˜•ํƒœ์— ๋Œ€ํ•ด ์ƒ๊ฐํ•ด๋ณด์•˜์Šต๋‹ˆ๋‹ค.

Spatial Dependence

  • To model spatial or spatio-temporal data, we assume that a set of data is a realization of a stochastic process.
  • The most important characteristics of spatial or spatio-temporal data is dependence among data points incorporated with spatial or spatio-temporal information.

Graphical Model

  • ์‹œ๊ณต๊ฐ„ ๋ฐ์ดํ„ฐ์™€ ์‹œ๊ณต๊ฐ„์  ์˜์กด์„ฑ์„ Graphical Model๋กœ ๋ฐ”๋ผ๋ณด๋ คํ•ฉ๋‹ˆ๋‹ค.

img

  • ์ด๋ฅผ ์œ„ํ•ด Probabilistic Graphical Models์— ๋Œ€ํ•œ ๊ณต๋ถ€๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.
    • Bayesian Networks
    • Probabilistic Graphical Models
    • Pattern Recognition & Machien Learning, Bishop
  • ์ด๋ฅผ ์œ„ํ•ด Recurrent Neural Networks (RNNs)์— ๋Œ€ํ•œ ๊ณต๋ถ€๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.
  • ์ด๋ฅผ ์œ„ํ•ด Graph Neural Networks (GNNs)์— ๋Œ€ํ•œ ๊ณต๋ถ€๊ฐ€ ํ•„์š”ํ•ฉ๋‹ˆ๋‹ค.
    • Overview

GNN

About

๐Ÿ“– Spatial-Temporal Graph Neural Networks Study (๊ฐœ์ธ์ ์ธ๊ณต๋ถ€)

Topics

Resources

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published