Research Article

Intelligent Big Information Retrieval of Smart Library Based on Graph Neural Network (GNN) Algorithm

Table 1

Comparison between compression technology and output format of main digital processing systems.

Digital processing systemCompression formatOutput format

TPIThe binary image is compressed by JBIG and the gray image is compressed by JPEGCAJ,PDF,KDH
TBSG4 compression is used for black-and-white images, and JPEG and JPEG2000 compression are used for gray and color imagesPDF
TRSThe text is compressed by LZWPDF,HTML,XML