Sumários
Document classification and clustering
18 outubro 2018, 15:30 • João Miguel Cordeiro Monteiro
- Document classification/clustering with the Python scikit-learn library
- Implementing naive Bayes and K-nearest neighbour classifiers
- Pen-and-paper exercises about document classification with the Naive Bayes and the Perceptron algorithms
- Pen-and-paper exercise about document clustering with the K-means algorithm
Information Extraction
18 outubro 2018, 14:00 • Pável Pereira Calado
- Introduction to Information Extraction
- Information Extraction Tasks (e.g., entity and relation extraction) and Applications (e.g., open-domain IE)
- Rule-based versus Machine Learning Methods for Information Extraction
- Usage of Regular Expressions in Rule-based Methods
- Modeling Information Extraction as a Sequence Classification Problem
- Introduction to Hidden Markov Models
Document classification and clustering
17 outubro 2018, 11:30 • João Miguel Cordeiro Monteiro
- Document classification/clustering with the Python scikit-learn library
- Implementing naive Bayes and K-nearest neighbour classifiers
- Pen-and-paper exercises about document classification with the Naive Bayes and the Perceptron algorithms
- Pen-and-paper exercise about document clustering with the K-means algorithm
Information Extraction
15 outubro 2018, 17:00 • Bruno Emanuel Da Graça Martins
- Introduction to Information Extraction
- IE Problems and Tasks
- Overview on Techniques for IE
- Encoding Named Entity Recognition as Sequence Labeling
- Information Extraction with Hidden Markov Models
- Introduction to Hidden Markov Models
- Inferring the Probability of an Observation Sequence (Forward Algorithm)
Clustering and Dimensionality Reduction
12 outubro 2018, 14:00 • Pável Pereira Calado
- The Clustering Hypothesis in Information Retrieval
- Applications of Clustering and Dimensionality Reduction in Information Retrieval
- Clustering Techniques
- Hierarchical Agglomerative Clustering
- K-Means and Soft K-Means
- Dimensionality Reduction Techniques
- Self-Organising Maps
- Multidimensional Scaling
- Latent Semantic Indexing