Alan Stein, MD, PhD, VP, Healthcare Technology at Autonomy, an HP company, describes the role of unstructured information in healthcare, and how new technologies enable meaningful analysis of clinical narratives and unstructured data. Through a variety of use-cases, Dr. Stein illustrates how clinical taxonomies such as SNOMED CT can be used for semantic search on medical information, and conceptual extraction of relevant structures for clinical insight, business intelligence or research activities.