id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_ofdqqvswinby7gitk5jlbq3674	Michael J. Cafarella	Structured data on the web	2011.0	41	.pdf	application/pdf	788	203	75	Structured Data and the Web Structured Data and the Web • A huge amount of structured data on the Web – Government data, crime, water condiLons, … Goal: Structured Data Ecosystem (points, polygons) from a large data set ü Google Fusion Tables: ü Google Fusion Tables: Tables on the Web Goal: Search for Structured Data • Finding the good tables on the Web • Understanding user's intenLons See "Google's Deep Web Crawl", VLDB 2008 – Single-table databases; Schema = attr labels + types – Recovers good relations from crawl and enables search Searching Tables is Tricky – Hits on table body results for tables Modeling Challenge: Data is About Everything – AcLon movies Recovering Table Semantics Raw HTML Tables Recovered Relations Relation Search Job-title, company, date 104 • Fusion Tables: helping get the ecosystem started. • Search for structured data sets: – Create new data sets • Deep web: VLDB 2008 	./cache/work_ofdqqvswinby7gitk5jlbq3674.pdf	./txt/work_ofdqqvswinby7gitk5jlbq3674.txt