id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_nrnit4emvfbfhaqenwnkv7lyla	David F. Barrero	Adapting Searchy to extract data using evolved wrappers	2012	12	.pdf	application/pdf	8332	740	65	Searchy, an agent-based mediator system specialized in data extraction and integration. achieve this, a Genetic Algorithm (GA) is used to learn a regex able to extract a set of positive samples while rejects a set of negative Multiagent System (MAS) to generate a composed regular expression able to extract records that match with a training set, able to evolve a simple regex thought a VLGA with an alphabet automatically generated and extract records matching the a complex wrapper able to extract data by means of evolutionary regular expressions. The Control Module sets the flow of operations that the different elements involved in the integration must perform, including the wrappers, the Mapping Module, and the Integration Module. most useful wrappers supported by Searchy is the regex wrapper, which is able to extract data from unstructured documents. Figure 2: Example of the integration process in Searchy, with two data sources, one relational database and a directory.	./cache/work_nrnit4emvfbfhaqenwnkv7lyla.pdf	./txt/work_nrnit4emvfbfhaqenwnkv7lyla.txt