question: public void makeGraph ( File linkGraph ) throws Exception { String temp212 ; int rowNum = 0 ; BufferedReader br = new BufferedReader ( new InputStreamReader ( new FileInputStream ( linkGraph ) ) ) ; while ( ( temp212 = br . readLine ( ) ) != null ) { String [ ] strs = temp212 . split ( " " ) ; for ( int i = 0 ; i < strs . length ; i ++ ) { graph [ rowNum ] [ i ] = Double . parseDouble ( strs [ i ] ) ; } rowNum ++ ; } for ( int i = 0 ; i < dataNum ; i ++ ) { for ( int j = 0 ; j < dimension ; j ++ ) { W [ i ] [ j ] = r . nextDouble ( ) ; H [ j ] [ i ] = r . nextDouble ( ) ; } } for ( int i = 0 ; i < dataNum ; i ++ ) { double sumW = 0 ; double sumH = 0 ; for ( int j = 0 ; j < dimension ; j ++ ) { sumW += W [ i ] [ j ] * W [ i ] [ j ] ; sumH += H [ j ] [ i ] * H [ j ] [ i ] ; } sumW = Math . sqrt ( sumW ) ; sumH = Math . sqrt ( sumH ) ; for ( int j = 0 ; j < dimension ; j ++ ) { W [ i ] [ j ] /= sumW ; H [ j ] [ i ] /= sumH ; } } trainW ( ) ; init = false ; }
target:  Read in the normalized Category file.