Implementation of Lossless Preprocessing Technique for Student Record System

The Implementation of Lossless Preprocessing Technique for Student Record System of the Lyceum of the Philippines University mainly aims to apply an effective data compression algorithm to efficiently store data, improve data transmission via web-based infrastructure and ensure security of records. The system is comprised of the following modules namely: Smart ID Registration Module, Client-Side Application Module and Information Kiosk Module. For enhanced security consideration, GZIPalso known as GNU ZIP algorithm is implemented to compress records before saving in the central database. It is a lossless data compression utility that is based on the deflate algorithm with the format defined in Internet Engineering Task Force RFC1951: DEFLATE Compressed Data Format Specification version 1.32. This standard references the use of the LZ77 (Lempil-Ziv, 1977) compression algorithm combined with Huffman coding. On the other hand, the lossless decompressionrestores the data by bringing back the removed redundancy and produces an exact replica of the original source data. Results of the software evaluation indicate high acceptability on the overall system performance.

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