tfidf_authors.py

   1 from pyspark.sql import SparkSession
   2 from similarities_helper import build_tfidf_dataset
   3
   4 ## TODO:need to exclude automoderator / bot posts.
   5 ## TODO:need to exclude better handle hyperlinks.
   6 spark = SparkSession.builder.getOrCreate()
   7
   8 df = spark.read.parquet("/gscratch/comdata/users/nathante/reddit_tfidf_test_authors.parquet_temp/part-00000-d61007de-9cbe-4970-857f-b9fd4b35b741-c000.snappy.parquet")
   9
  10 include_subs = set(open("/gscratch/comdata/users/nathante/cdsc-reddit/top_25000_subs_by_comments.txt"))
  11 include_subs = {s.strip('\n') for s in include_subs}
  12 df = df.filter(df.author != '[deleted]')
  13 df = df.filter(df.author != 'AutoModerator')
  14
  15 df = build_tfidf_dataset(df, include_subs, 'author')
  16
  17 df.cache()
  18
  19 df.write.parquet('/gscratch/comdata/users/nathante/subreddit_tfidf_authors.parquet',mode='overwrite',compression='snappy')