Automatic Wrapper Generation

for a page of unstructured documents, rich in data and narrow in ontological breadth

Application

Ontology

Ontology

Parser

Constant/Keyword

Recognizer

Database-Instance

Generator

Unstructured

Record Documents

Constant/Keyword

Matching Rules

Data-Record Table

Record-Level Objects,

Relationships, and Constraints

Database

Scheme

Populated

Database

Record

Extractor

Web Page

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