Sumários

Structure in data

9 Outubro 2024, 09:30 André Maria da Silva Dias Moitinho de Almeida

Computational exercises on clustering.


Structure in data - III

9 Outubro 2024, 08:30 André Maria da Silva Dias Moitinho de Almeida

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


Structure in data - II

8 Outubro 2024, 14:00 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: Aglomeratiove clustering


Data storage and retrieval - II

2 Outubro 2024, 09:30 André Maria da Silva Dias Moitinho de Almeida

  • Querying and retrieving data from the James Webb Space Telescope Archive
  • Jupyter-notebook tutorial on reading tables from files in several formats: csv, ecsv, xml/votable
  • Jupyter-notebook tutorial on reading and inspecting images and tables from fits format files


Structure in data - I

2 Outubro 2024, 08:30 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