tfidf_comments.py

   1 from pyspark.sql import functions as f
   2 from pyspark.sql import SparkSession
   3 from pyspark.sql import Window
   4 from similarities_helper import build_tfidf_dataset
   5
   6 ## TODO:need to exclude automoderator / bot posts.
   7 ## TODO:need to exclude better handle hyperlinks.
   8
   9 spark = SparkSession.builder.getOrCreate()
  10 df = spark.read.parquet("/gscratch/comdata/users/nathante/reddit_tfidf_test.parquet_temp")
  11
  12 include_subs = set(open("/gscratch/comdata/users/nathante/cdsc-reddit/top_25000_subs_by_comments.txt"))
  13 include_subs = {s.strip('\n') for s in include_subs}
  14
  15 df = build_tfidf_dataset(df, include_subs, 'term')
  16
  17 df.write.parquet('/gscratch/comdata/users/nathante/subreddit_tfidf.parquet',mode='overwrite',compression='snappy')
  18 spark.stop()