Summarization of Films and Documentaries Based on Subtitles and Scripts
Table 8: ROUGE scores for generated summaries for subtitles, scripts, and scripts+subtitles, against plot synopses. For MMR, λ=0.50; Support Sets used the cosine distance and threshold = 50%; KP-Centrality used 50 key phrases.
['MMR', 'Subtitles', 'R-1 0.08', 'R-2 0.01', 'R-SU4 0.02', 'AVG #Words 435']
The size of synopses is very different from that of plot summaries. Although synopses also focus on the major events of the story, their larger size allows for a more refined description of film events. Additionally, because summaries are created with the same number of sentences of the corresponding synopsis, higher scores are expected. From all algorithms, LexRank clearly stands out with the highest scores for all metrics (except for R-SU4, for scripts).