{"first_sentence": {"type": "/type/text", "value": "One of the key difficulties in creating useful and robust ubiquitous, context-aware computer applications is developing the algorithms that can detect context from noisy and often ambiguous sensor data."}, "physical_format": "Paperback", "subtitle": "Second International Conference, PERVASIVE 2004, Vienna Austria, April 21-23, 2004, Proceedings (Lecture Notes in Computer Science)", "weight": "1.1 pounds", "languages": [{"key": "/l/eng"}], "type": {"key": "/type/edition"}, "publishers": ["Springer"], "number_of_pages": 358, "isbn_13": ["9783540218357"], "id": 12252439, "edition_name": "1 edition", "isbn_10": ["3540218351"], "publish_date": "May 27, 2004", "key": "/b/OL9054671M", "last_modified": {"type": "/type/datetime", "value": "2008-04-30 09:38:13.731961"}, "title": "Pervasive Computing", "contributions": ["Alois Ferscha (Editor)", "Friedemann Mattern (Editor)"], "subjects": ["General Theory of Computing", "Networking - General", "Computers - General Information", "Computers", "Computer Books: General", "Programming - Systems Analysis & Design", "Information Technology", "Computers / Information Technology", "General", "Congresses", "Mobile computing", "Portable computers", "Ubiquitous computing"], "physical_dimensions": "9.3 x 6.1 x 0.9 inches", "revision": 1}