Single-Pass, Adaptive Natural Language Filtering: Measuring Value in User Generated Comments on Large-Scale, Social Media News Forums

Abstract: There are large amounts of insight and social discovery potential in mining crowd-sourced comments left on popular news forums like Reddit.com, Tumblr.com, Facebook.com and Hacker News. Unfortunately, due the overwhelming amount of participation with its varying quality of commentary, extracting value out of such data isn't always obvious nor timely. By designing efficient, single-pass and adaptive natural language filters to quickly prune spam, noise, copy-cats, marketing diversions, and out-of-context posts, we can remove over a third of entries and return the comments with a higher probability of relatedness to the original article in question. The approach presented here uses an adaptive, two-step filtering process. It first leverages the original article posted in the thread as a starting corpus to parse comments by matching intersecting words and term-ratio balance per sentence then grows the corpus by adding new words harvested from high-matching comments to increase filtering accuracy over time.