Authors:
Emilio Ferrara
1
and
Robert Baumgartner
2
Affiliations:
1
University of Messina, Italy
;
2
Lixto Software GmbH, Austria
Keyword(s):
Semantic Web, Information Extraction, Data Mining.
Related
Ontology
Subjects/Areas/Topics:
Agents
;
Artificial Intelligence
;
Biomedical Engineering
;
Biomedical Signal Processing
;
Data Manipulation
;
Data Mining
;
Databases and Information Systems Integration
;
Enterprise Information Systems
;
Health Engineering and Technology Applications
;
Human-Computer Interaction
;
Industrial Applications of AI
;
Intelligent User Interfaces
;
Methodologies and Methods
;
Neurocomputing
;
Neurotechnology, Electronics and Informatics
;
Pattern Recognition
;
Physiological Computing Systems
;
Sensor Networks
;
Signal Processing
;
Soft Computing
;
Web Information Systems and Technologies
;
Web Intelligence
Abstract:
Nowadays, the huge amount of information distributed through the Web motivates studying techniques to be adopted in order to extract relevant data in an efficient and reliable way.
Both academia and enterprises developed several approaches of Web data extraction, for example using techniques of artificial intelligence or machine learning.
Some commonly adopted procedures, namely wrappers, ensure a high degree of precision of information extracted from Web pages, and, at the same time, have to prove robustness in order not to compromise quality and reliability of data themselves.
In this paper we focus on some experimental aspects related to the robustness of the data extraction process and the possibility of automatically adapting wrappers.
We discuss the implementation of algorithms for finding similarities between two different version of a Web page, in order to handle modifications, avoiding the failure of data extraction tasks and ensuring reliability of information extracted
.
Our purpose is to evaluate performances, advantages and draw-backs of our novel system of automatic wrapper adaptation.
(More)