Good intro to ecommerce search based on significant online retail experience.
Good overview of enterprise search issues, contrasting unstructured search with RDBMS processes and discussing issues of granularity and simplicity.
Traces the algorithmic relevance problems in search on a textual database of authors and books. This chapter shows how to use the Solr DisMax functions to add extra relevance weight for matches on canonical names and alludes to adding weight for titles matches -- well-known heuristics for getting more useful search results.
To extract assertions for question-answering systems, the ReVerb package implements the Open Information Extraction (Open IE) theory. Without needing complex training examples and domain-specific words, this simply extracts relationships, such as "apple has phone". It's open-source, along with the extracted sets from wikipedia and TReC's ClueWeb09 corpus.
Competing with sharepoint search on near-real-time index updates, faceted refinements, faster crawling, default configuration is easier to maintain, more extensible in pipeline, etc. Price is about $14,000 per server, no need to buy additional SharePoint licenses.
Talks about a 2011 analyst report on Enterprise Search engines and trends like pervasive search, search within business processes, pro-active search managers, using search to find workplace patterns, demand for transparency and user control,