Extracting Schema from Semistructured Data

Extracting schema is important in the field of semistructured data research.This paper presents a new approach to this topic with the conception of homo-object set and label path.The new approach finishes extracting schema by tow steps:firstly,searching all homo-object sets from OEM model;secondly,constructing schema table.This approach not only extracts schema from level structured data,but also from OEM data which include circle,while some other approaches can not extract schema from OEM data which include circle.