Sumários

Dimensionality Reduction - I

8 Outubro 2025, 08:30 • André Maria da Silva Dias Moitinho de Almeida

  • High dimensional data in physics
  • The curse (and blessing) of dimensionality
  • Approaches and methods for dimensionality reduction
    • Feature selection 
    • Feature extraction
  • Methods for dimensionality reduction (feature extraction)
    • Principal component analysis (PCA)

Structure in data - III

7 Outubro 2025, 14:00 • André Maria da Silva Dias Moitinho de Almeida

  • Finding groups: clustering (cont)
    • Hierarchical+Hierarchical: OPTICS
    • Hierarchical+Hierarchical: HDBSCAN
    • Going further: UPMASK, and more

Data storage and retrieval - II

1 Outubro 2025, 09:30 • André Maria da Silva Dias Moitinho de Almeida

  • Jupyter-notebook tutorial on reading and inspecting images and tables from fits format files

Structure in data - II

1 Outubro 2025, 08:30 • André Maria da Silva Dias Moitinho de Almeida

  • Density estimation: inferring the Probability Density Function (cont)
    • Nearest-Neighbor Density Estimation
  • Finding groups: clustering
    • Centroid based: KMeans
    • Hierarchical: Aglomerative clustering
    • Density Based: DBScan

Structure in data - I

30 Setembro 2025, 14:00 • André Maria da Silva Dias Moitinho de Almeida

  • Exploratory data analysis: why and how
  • Statistical description of the observed structure
  • Density estimation: inferring the Probability Density Function
    • Kernel Density Estimation