Database Systems (Postgraduate)
Introduction to databases and their language systems in theory and practice. The main topics covered by the module are: The principles and components of database management systems. The main modelling techniques used in the construction of database systems. Implementation of databases using an object-relational database management system. SQL, the main relational database language. Object-Oriented database systems. Future trends, in particular information retrieval and data warehouses. There are 2 timetabled lectures a week, and 1 hour tutorial per week (though not every week). There will be timetabled laboratory sessions (2 hours a week) for approximately 4 weeks.
Database Systems (Undergraduate)
This module is an introduction to databases and their language systems in theory and practice. The main topics covered by the module are: the principles and components of database management systems; the main modelling techniques used in the construction of database systems; implementation of databases using an object-relational database management system; the main relational database language; Object-Oriented database systems; future trends, in particular information retrieval, data warehouses and data mining.There are two timetabled lectures a week, and one-hour tutorial per week (though not every week). There will be timetabled laboratory sessions (two hours a week) for approximately five weeks.
Research Interests:My research focuses on two related areas: 1. information retrieval (IR) models and 2. the integration of database (DB) and IR technologies.
IR models are related to probability theory and the sound derivation of IR models leads to new and general approaches to rank any object, to reason about complex knowledge sources, and to make decisions. Many results of my research over the past 10 years are summarised in the book "IR Models: Foundations and Relationships", Morgan Claypool Publishers, 2013. Currently, my main research interest is in generalisations of probability theory in order to obtain a "new" theory that joins probabilistic and information-theoretic reasoning.
The integration of DB and IR is an ongoing research challenge, though, in principle, DB and IR do the same: manage and retrieve data. I have developed probabilistic object-relational, logic-based knowledge representations that are useful for solving tasks in the domain of "semantic" (knowledge-rich) information management tasks. This led to the "Relational Bayes", a patented technology (VLDB Journal 2008).
Based on the insights into probabilistic reasoning and IR models, and based on the benefits from a seamless DB+IR, we have developed an information management system that we provide to selected collaborators and customers.