Sumários

Relevance feedback

20 Outubro 2021, 10:30 Rui Henriques

Supervised principles and applications to aid IR.
Global versus local forms of knowledge.
Different types of feedback and their relevance.
Classification and regression tasks in IR.
Rocchio approach for query optimization.


Relevance feedback

20 Outubro 2021, 10:30 Rui Henriques

Supervised principles and applications to aid IR.
Global versus local forms of knowledge.
Different types of feedback and their relevance.
Classification and regression tasks in IR.
Rocchio approach for query optimization.


Clustering in IR

18 Outubro 2021, 18:00 Rui Henriques

Clustering applications in IR.
Clustering variants (non-exclusive, semi-supervised, soft) and their relevance in IR.
Clustering approaches. Agglomerative clustering under different linkage criteria.
Clustering evaluation: internal, external and relative.
Labeling clusters.


Clustering in IR

18 Outubro 2021, 18:00 Rui Henriques

Clustering applications in IR.
Clustering variants (non-exclusive, semi-supervised, soft) and their relevance in IR.
Clustering approaches. Agglomerative clustering under different linkage criteria.
Clustering evaluation: internal, external and relative.
Labeling clusters.


Topic modeling and concept analysis

13 Outubro 2021, 10:30 Rui Henriques

Introduction to topic modeling.
Document-topic and topic-term density control.
Formal and coherent concept analysis.
Constant and order-preserving content patterns.
Concept lattices.