1 INTRODUCTION  
2 GALAXY FORMATION MODEL AND CALIBRATION  
2.1 Galaxy formation model: Galacticus  
2.2 Merger tree catalogs  
2.3 Calibration with \(H\alpha\) luminosity function  
3 PREDICTIONS FOR \(H\alpha\) EMISSION LINE GALAXIES  
4 PREDICTIONS FOR [OIII] EMISSION LINE GALAXIES  
5 DISCUSSION AND CONCLUSION