Authors : Asaad Sabah Hadi and Alyaa Abdul Hussein Alkaabi
Abstract: Integrity of information in LOD (Linked Open Data) is very important issues. The RDF (Resource Description Framework) is a special language for describing data in semantic web. The aim of integrity is checking any change of information. The aim of this study is to improve the integrity of RDF information. The proposed system use ("Woolly mammoth") RDF file from BBC News web page as an example .The system analyze the RDF in order to find all its statements then it will convert these statements into three dimensional array according to RDF representation (subject, predicate, object). The content of the array is binary values (0, 1) where the value ‘1’ represent the existence of the statement in RDF whereas the ‘0’ value means that these statement is not exist. The three dimensional array are converted into a bit stream that represent the message to be checked in order to improve the integrity. Also, the system add the date and time to the bit stream in order to check the validity of the RDF data. To reduce the length of the bit stream we use one of the compression techniques. The message can be saved in the same file (hiding it) or save in an external file that can be checked later. When we want to check that our RDF has the same content and there is no change in its data, we reload it and convert its content into a bit stream and use XOR to match the new stream with the old one to check the integrity in a simplest way.
Asaad Sabah Hadi and Alyaa Abdul Hussein Alkaabi, 2018. RDF (Resource Description Framework) Serialization for Webpage Integrity. Journal of Engineering and Applied Sciences, 13: 4705-4711.