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Table 1 The 30 technical and tactical analysis indices based on the double three-phase evaluation method

From: Technical and tactical diagnosis model of table tennis matches based on BP neural network

  The beginning of a game The middle of a game The end of a game
Phases Bh Name Bh Name Bh Name
serve and attack phase X1 UR of Serve X3 UR of Serve X5 UR of Serve
X2 SR of Serve X4 SR of Serve X6 SR of Serve
X13 UR of the third stroke X15 UR of the third stroke X17 UR of the third stroke
X14 SR of the third stroke X16 SR of the third stroke X18 SR of the third stroke
receive and attack phase ×7 UR of Receive X9 UR of Receive X11 UR of Receive
X8 SR of Receive X10 SR of Receive X12 SR of Receive
X19 UR of the fourth stroke X21 UR of the fourth stroke X23 UR of the fourth stroke
X20 SR of the fourth stroke X22 SR of the fourth stroke X24 SR of the fourth stroke
stalemate phase X25 UR after the fourth strokes X27 UR after the fourth strokes X29 UR after the fourth strokes
X26 SR after the fourth strokes X28 SR after the fourth strokes X30 SR after the fourth strokes