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cdsc_reddit/similarities/#tfidf_weekly.py#

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2020-12-09 01:32:20 +00:00
from pyspark.sql import functions as f
from pyspark.sql import SparkSession
from pyspark.sql import Window
from similarities_helper import build_weekly_tfidf_dataset
import pandas as pd
def tfidf_weekly(inpath, outpath, topN, term_colname, exclude):
spark = SparkSession.builder.getOrCreate()
df = spark.read.parquet("/gscratch/comdata/output/reddit_ngrams/comment_terms.parquet")
include_subs = pd.read_csv("/gscratch/comdata/output/reddit_similarity/subreddits_by_num_comments.csv")
include_subs = set(include_subs.loc[include_subs.comments_rank <= 25000]['subreddit'])
# remove [deleted] and AutoModerator (TODO remove other bots)
# df = df.filter(df.author != '[deleted]')
# df = df.filter(df.author != 'AutoModerator')
df = build_weekly_tfidf_dataset(df, include_subs, 'term')
df.write.parquet('/gscratch/comdata/output/reddit_similarity/tfidf_weekly/comment_terms.parquet', mode='overwrite', compression='snappy')
spark.stop()