• ROGUE-LSUM is the average of all LCS on sentence level.
  • Where ROUGE-L Score doesn't care about new line, Rogue-LSUM takes LCS only from each sentences
• ROGUE = Recall-Oriented Understudy for Gisting Evaluation
• As ROGUE compare with the ALL target sentences, it is often compared with Recall
• Heavily used in Text Summarization, Also usually used in Machine Translation with BLEU Score
• ROGUE-LSUM is used more on those cases where sentence level similarity is needed
  • Like Extractive Summarization

Problems with ROGUE Score

1. Hard to compare with different tokenizers
2. Doesn't consider synonyms