Text Data Analysis: Techniques and Applications

About
Privacy
Disclaimer

Graph Chatbot

Related lectures (34)

Information retrieval: vector space Log in to Mediaspace to watch this video

Covers the basics of information retrieval using vector space models and practical exercises on relevance feedback and posting list scanning.

Natural Language Processing Log in to Mediaspace to watch this video

Introduces Natural Language Processing, covering text preprocessing, sentiment analysis, and topic analysis, with a focus on building a climate change risk index.

Latent Semantic Indexing Log in to Mediaspace to watch this video

Covers Latent Semantic Indexing, word embeddings, and the skipgram model with negative sampling.

Data Mining: Introduction Log in to Mediaspace to watch this video

Covers the challenges and opportunities of data mining, practical questions, algorithm components, and applications like shopping basket analysis.

Unsupervised Learning: Clustering & Dimensionality Reduction Log in to Mediaspace to watch this video

Introduces unsupervised learning through clustering with K-means and dimensionality reduction using PCA, along with practical examples.

Latent Semantic Indexing: Concepts and Applications Log in to Mediaspace to watch this video

Explores latent semantic indexing, vocabulary construction, document matrix creation, query transformation, and document retrieval using cosine similarity.

Latent semantic indexing: inverted files Log in to Mediaspace to watch this video

Explores term-offset indices in inverted files and relevance feedback solutions.

Latent Dirichlet Allocation Log in to Mediaspace to watch this video

Covers Latent Dirichlet Allocation, a state-of-the-art method for concept extraction using a probabilistic generative model.

Information Retrieval: Basics and Techniques Log in to Mediaspace to watch this video

Introduces the basics of Information Retrieval, covering indexing, weighting schemes, cosine similarity, and query evaluation.

Latent Semantic Indexing Log in to Mediaspace to watch this video

Covers Latent Semantic Indexing, a method to improve information retrieval by mapping documents and queries into a lower-dimensional concept space.

Unsupervised Learning: Dimensionality Reduction and Clustering Log in to Mediaspace to watch this video

Covers unsupervised learning, focusing on dimensionality reduction and clustering, explaining how it helps find patterns in data without labels.

Information Retrieval Basics: Boolean and Vector Space Models Log in to Mediaspace to watch this video

Introduces Boolean and Vector Space models for information retrieval, covering syntax, similarity computation, term frequency, and query weights.

Natural Language Processing: A Primer Log in to Mediaspace to watch this video

Introduces Natural Language Processing (NLP) and its applications, covering tokenization, machine learning, sentiment analysis, and Swiss NLP applications.

Introduction to Machine Learning Log in to Mediaspace to watch this video

Covers the basics of machine learning, including supervised and unsupervised learning, linear regression, and classification.

Page 2 of 2