This unit presents students with the theory and practice underlying computerised information retrieval. Topics covered include: history and context of information retrieval systems, retrieval models, Boolean, vector space and probabilistic, evaluation strategies, test collections, web search engines, indexing, content-based multimedia retrieval and relevance feedback.
At the completion of this unit students will:
- appreciate the context and application of information retrieval systems;
- understand the different models of information retrieval and their comparative advantages and disadvantages;
- understand how objective and subjective evaluation strategies are used with information retrieval systems;
- be conversant with the issues and challenges of managing very large collections of heterogeneous data for information retrieval;
- understand how web search engines and search algorithms are constructed, utilised and deployed;
- appreciate how to index different media;
- understand how information retrieval systems can be used for the retrieval of audio-visual information;
- appreciate the theoretical and practical underpinnings of relevance feedback in information retrieval systems.
Examination (2 hours): 50%; In-semester assessment: 50%
Minimum total expected workload equals 12 hours per week comprising:
(a.) Contact hours for on-campus students:
- Two hours of lectures
- One 2-hour laboratory
(b.) Additional requirements (all students):
- A minimum of 8 hours independent study per week for completing lab and project work, private study and revision.
(FIT5131 or FIT9017) and (FIT5132 or FIT9003 or FIT9019)) or equivalent