1 Introduction. - 1. 1 Towards Lightweight Information. - 1. 2 What is Multimedia Information Retrieval?. - 1. 3 Examples of Multimedia Information Retrieval Systems. - 1. 4 Vector Space Retrieval. - 1. 5 Interactive Search Techniques. - 1. 6 Evaluation Issues. - 1. 7 Similarity Thesauri. - 2 Probabilistic Retrieval. - 2. 1 Information Retrieval Events in a Probability Space. - 2. 2 Cooper and Robertson's Probability Ranking Principle. - 2. 3 Robertson-Sparck Jones Weighting. - 2. 4 Logistic Inference Models. - 3 Text Retrieval. - 3. 1 Text Characteristics. - 3. 2 Vocabularies for Text Indexing. - 3. 3 Weighting and Retrieval Functions. - 4 Automatic Speech Recognition. - 4. 1 Speech Sound Waves. - 4. 2 Digital Speech Signal Processing. - 4. 3 Hidden Markov Model (HMM) Theory. - 4. 4 HMM Based Recognition. - 5 Speech Retrieval. - 5. 1 Introduction. - 5. 2 Speech Recognition. - 5. 3 Indexing and Retrieval by N-Grams. - 5. 4 Indexing and Retrieval by Word Matching. - 5. 5 Metadata Organisation and Query Processing. - 5. 6 Recognition Errors and Retrieval Effectiveness. - 5. 7 Experiments. - 6 Case Study: Retrieving Scanned Library Cards. - 6. 1 Introduction. - 6. 2 Probabilistic Term Weighting and Retrieval. - 6. 3 Estimating Occurrence Probabilities. - 6. 4 Retrieval for One-Word Queries. - 6. 5 Including Ordering Information. - 7 Integrating Information Retrieval and Database Functions. - 7. 1 Introduction. - 7. 2 System Architecture. - 7. 3 Transactions on the IR Index. - 7. 4 Transaction Manager of the SPIDER IR Server. - 8 Outlook. - A Theorems and Proofs. Language: English