Chapter 8 is devoted to evaluation in IR, and presents major evaluation frameworks, such as the Text Retrieval Conference (TREC) and classical evaluation measures, such as mean average precision, precision at different cutoff points, as well as the more recently developed measure NDCG (normalized discounted cumulative gain) for evaluation with graded (non-binary) relevance judgments.
two topics that might be of interest are the use of wildcard queries by users and spelling correction of queries, discussed in Chapter 3.