84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
import fire
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from pyspark.sql import SparkSession
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from pyspark.sql import functions as f
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from similarities_helper import tfidf_dataset, build_weekly_tfidf_dataset, select_topN_subreddits
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def _tfidf_wrapper(func, inpath, outpath, topN, term_colname, exclude, included_subreddits):
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spark = SparkSession.builder.getOrCreate()
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df = spark.read.parquet(inpath)
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df = df.filter(~ f.col(term_colname).isin(exclude))
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if included_subreddits is not None:
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include_subs = set(map(str.strip,open(included_subreddits)))
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else:
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include_subs = select_topN_subreddits(topN)
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dfwriter = func(df, include_subs, term_colname)
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dfwriter.parquet(outpath,mode='overwrite',compression='snappy')
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spark.stop()
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def tfidf(inpath, outpath, topN, term_colname, exclude, included_subreddits):
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return _tfidf_wrapper(tfidf_dataset, inpath, outpath, topN, term_colname, exclude, included_subreddits)
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def tfidf_weekly(inpath, outpath, topN, term_colname, exclude, included_subreddits):
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return _tfidf_wrapper(build_weekly_tfidf_dataset, inpath, outpath, topN, term_colname, exclude, included_subreddits)
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def tfidf_authors(outpath='/gscratch/comdata/output/reddit_similarity/tfidf/comment_authors.parquet',
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topN=None,
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included_subreddits=None):
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return tfidf("/gscratch/comdata/output/reddit_ngrams/comment_authors.parquet",
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outpath,
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topN,
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'author',
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['[deleted]','AutoModerator'],
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included_subreddits=included_subreddits
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)
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def tfidf_terms(outpath='/gscratch/comdata/output/reddit_similarity/tfidf/comment_terms.parquet',
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topN=None,
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included_subreddits=None):
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return tfidf("/gscratch/comdata/output/reddit_ngrams/comment_terms.parquet",
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outpath,
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topN,
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'term',
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[],
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included_subreddits=included_subreddits
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)
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def tfidf_authors_weekly(outpath='/gscratch/comdata/output/reddit_similarity/tfidf_weekly/comment_authors.parquet',
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topN=None,
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included_subreddits=None):
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return tfidf_weekly("/gscratch/comdata/output/reddit_ngrams/comment_authors.parquet",
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outpath,
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topN,
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'author',
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['[deleted]','AutoModerator'],
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included_subreddits=included_subreddits
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)
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def tfidf_terms_weekly(outpath='/gscratch/comdata/output/reddit_similarity/tfidf_weekly/comment_terms.parquet',
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topN=None,
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included_subreddits=None):
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return tfidf_weekly("/gscratch/comdata/output/reddit_ngrams/comment_terms.parquet",
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outpath,
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topN,
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'term',
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[],
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included_subreddits=included_subreddits
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)
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if __name__ == "__main__":
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fire.Fire({'authors':tfidf_authors,
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'terms':tfidf_terms,
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'authors_weekly':tfidf_authors_weekly,
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'terms_weekly':tfidf_terms_weekly})
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