Adhering to the experimental settings of BIBREF1 , we concatenate sentence representations produced from our model with those obtained from the state-of-the-art unsupervised learning model (Layer Normalized Skip-Thoughts, ST-LN) BIBREF31 . Following the experimental design of BIBREF1 , we conduct experiments on three different learning objectives: Cap2All, Cap2Cap, Cap2Img. 
 Question: What baselines are the proposed method compared against?
(Layer Normalized Skip-Thoughts, ST-LN) BIBREF31 Cap2All, Cap2Cap, Cap2Img