Skip to content. | Skip to navigation

Informatik 5
Information Systems
Prof. Dr. M. Jarke
Personal tools
You are here: Home Publications Enabling Structured Queries over Unstructured Documents


Prof. Dr. M. Jarke
RWTH Aachen
Informatik 5
Ahornstr. 55
D-52056 Aachen
Tel +49/241/8021501
Fax +49/241/8022321

How to find us

Annual Reports





Enabling Structured Queries over Unstructured Documents

Year 2011
PDF URL view
PDF File download

With the information explosion on the internet, finding precise answers efficiently is a prevalent requirement by many users. Today, search engines answer keyword queries with a ranked list of documents. Users might not be always willing to read the top ranked documents in order to satisfy their information need. It would save lots of time and efforts if the the answer to a query can be provided directly, instead of a link to a document which might contain the answer. To realize this functionality, users must be able to define their information needs precisely, e.g., by using structured queries, and, on the other hand, the system must be able to extract information from unstructured text documents to answer these queries. To this end, we introduce a system which supports structured queries over unstructured text documents, aiming at finding structured answers to the users' information need. Our goal is to extract answers from unstructured natural text, by applying various efficient techniques that allow fast query processing over text documents from the web or other heterogeneous sources. A key feature of our approach is that it does not require any upfront integration efforts such as the definition of a common data model or ontology.


International Workshop on Semantic based Opportunistic Data Management (SODM 2011), in conjunction with the 12th IEEE International Conference on Mobile Data Management (MDM 2011), Lulea, Sweden, 2011


Presented at

SODM 2011, 2011 , Lulea , SE.

Published in

12th IEEE International Conference on Mobile Data Management (MDM 2011) .

Document Actions