The document discusses how to build an automatic title generator by investigating title structure and common patterns in titles. It analyzes over 10,000 computer science article titles from arXiv.org to determine average length, common sentence structures, nouns, adjectives and punctuation. The analysis found the average title length is 8.91 words and common structures include noun phrase verb noun phrase or noun phrase preposition noun. Frequent nouns included image, evaluation, study and algorithms. Questions in titles lead to more downloads but less citations.