Comprehensive structured knowledge base system construction with natural language presentation

Table 7 This table shows the file size reduction of each domain after each step of the pre-processing algorithm

Domain	Original size	Size after excel conversion	Size after null and invalid values removed	File size after split (KB)
Agent	13 GB	5 GB (60%)	260 MB (98%)	800
Animal	250 MB	61 MB (75%)	23 MB (91%)	820
Chemical	15 MB	3.1 MB (79%)	1.7 MB (89%)	705
Event	134 MB	44 MB (68%)	8.1 MB (94%)	718
University	32 MB	7.5 MB (77%)	3.4 MB (89%)	690
Game	1 MB	188 KB (82%)	132 KB (87%)	660
Album	327 MB	116 MB (65%)	13 MB (96%)	650
Organization	1.32 GB	564 MB (57%)	46 MB (96%)	680
Place	4.43 GB	1.8 GB (60%)	125 MB (97%)	720
Work	1.7 GB	663 MB (61%)	27 MB (98%)	710
		68.4%	93.5%	716

The second column shows the original size of the file
Columns 3, 4 and 5 show the file size reduction after the program converts the file to Excel, removes the null and invalid values, and splits the file. The percentage of file reduction is given in parentheses. The bottom line indicates the average percentage of the file reduction of each step