Final lecture, with information about additional exam preparation tutorial.
Lecture 21: Practice Exam Questions
Mark your own solutions for two of last year’s exam questions.
Lecture 20: Course Review
Summary of course topics. The what, when and where of the Inf1-DA exam. Advice on exam preparation.
Lecture 19: The χ2 Test; Correlation and Causation
Hypothesis testing for qualitative data; risks and rewards of statistical testing. The “replication crisis” in some experimental sciences.
Lecture 18: Correlations and Hypothesis Testing
What correlation means, how to calculate it, how to test whether it is significant.
Lecture 14: Example Corpora Applications
Corpora are the foundation for many data-driven applications: from experimental research into the development of language to automatic translation of written text.
Lecture 12: Corpora
Lecture 12 cancelled owing to heavy snow; here’s a link to last year’s recording, some homework reading and additional references.
Lecture 10: Structuring XML
Defining and using schemas to capture particular kinds of XML document.
Lecture 9: Trees and XML
Semistructured data: what that is, the XPath data model of trees to represent it, and the XML language supporting that
Lecture 8: SQL Queries
Slides : Recording This afternoon the final lecture on Structure Data covered a range of database topics: ACID properties for transactions; the NoSQL movement; nested SQL queries, set operations, and aggregate queries; ultimate physical limits to computation; the wonders of