Impact of Lexical Features on Answer Detection Model in Discussion Forums

Table 2

A brief description for lexical features.

Code	Abbreviation	Description
F1	title_reply_cosin_similarity	Cosine similarity between reply post and thread title
F2	question_reply_cosin_similarity	Cosine similarity of an initial post with the reply post
F3	thread_centroid_reply_cosin_similarity	Cosine similarity between thread centroid and reply
F4	Reply_words_overlapping_thrd_title	Thread title and reply common words ratio with the reply words
F5	reply_words_overlapping_initial_post	Question and reply common words ratio with the reply words
F6	total_num_of_words_in_reply	Total number of reply words
F7	unique_words_in_reply	Number of unique reply words
F8	title_reply_wmd	Thread title and reply word mover distance
F9	question_reply_wmd	Question and reply word mover distance
F10	thread_centroid_reply_wmdistance	Word mover distance between thread centroid and reply post