Deep Temporal-Recurrent-Replicated-Softmax for Topical Trends over Time
Table 6: SPAN (Sk) for selected terms, avg-SPAN and set ||ˆQ|| by LDA, RSM, DTM and RNN-RSM
['[BOLD] Term', '^ [ITALIC] vk', '[BOLD] LDA  [ITALIC] Sk', '[BOLD] LDA  [ITALIC] Sdictk', '[BOLD] RSM  [ITALIC] Sk', '[BOLD] RSM  [ITALIC] Sdictk', '[BOLD] DTM  [ITALIC] Sk', '[BOLD] DTM  [ITALIC] Sdictk', '[BOLD] RNN-RSM  [ITALIC] Sk', '[BOLD] RNN-RSM  [ITALIC] Sdictk']
Higher SPAN suggests that the model is capable in capturing trending keywords. Observe that ||ˆQ||DTM