X-Git-Url: https://code.communitydata.science/cdsc_reddit.git/blobdiff_plain/541e125b28dbca5c06d2160a5cd59ce112657b2a..65deba5e4e4ad9e3f23e82573491f7d6b190e644:/similarities/tfidf.py?ds=sidebyside

diff --git a/similarities/tfidf.py b/similarities/tfidf.py
index 01b0b20..3356299 100644
--- a/similarities/tfidf.py
+++ b/similarities/tfidf.py
@@ -2,9 +2,12 @@ import fire
 from pyspark.sql import SparkSession
 from pyspark.sql import functions as f
 from similarities_helper import tfidf_dataset, build_weekly_tfidf_dataset, select_topN_subreddits
+from functools import partial
 
-def _tfidf_wrapper(func, inpath, outpath, topN, term_colname, exclude, included_subreddits):
-    spark = SparkSession.builder.getOrCreate()y
+inpath = '/gscratch/comdata/users/nathante/competitive_exclusion_reddit/data/tfidf/comment_authors_compex.parquet'
+# include_terms is a path to a parquet file that contains a column of term_colname + '_id' to include.
+def _tfidf_wrapper(func, inpath, outpath, topN, term_colname, exclude, included_subreddits, included_terms=None, min_df=None, max_df=None):
+    spark = SparkSession.builder.getOrCreate()
 
     df = spark.read.parquet(inpath)
 
@@ -15,50 +18,72 @@ def _tfidf_wrapper(func, inpath, outpath, topN, term_colname, exclude, included_
     else:
         include_subs = select_topN_subreddits(topN)
 
-    dfwriter = func(df, include_subs, term_colname)
+    include_subs = spark.sparkContext.broadcast(include_subs)
+
+    #    term_id = term_colname + "_id"
+
+    if included_terms is not None:
+        terms_df = spark.read.parquet(included_terms)
+        terms_df = terms_df.select(term_colname).distinct()
+        df = df.join(terms_df, on=term_colname, how='left_semi')
+
+    dfwriter = func(df, include_subs.value, term_colname)
 
     dfwriter.parquet(outpath,mode='overwrite',compression='snappy')
     spark.stop()
 
-def tfidf(inpath, outpath, topN, term_colname, exclude, included_subreddits):
-    return _tfidf_wrapper(tfidf_dataset, inpath, outpath, topN, term_colname, exclude, included_subreddits)
+def tfidf(inpath, outpath, topN, term_colname, exclude, included_subreddits, min_df, max_df):
+    tfidf_func = partial(tfidf_dataset, max_df=max_df, min_df=min_df)
+    return _tfidf_wrapper(tfidf_func, inpath, outpath, topN, term_colname, exclude, included_subreddits)
+
+def tfidf_weekly(inpath, outpath, static_tfidf_path, topN, term_colname, exclude, included_subreddits):
+    return _tfidf_wrapper(build_weekly_tfidf_dataset, inpath, outpath, topN, term_colname, exclude, included_subreddits, included_terms=static_tfidf_path)
 
-def tfidf_weekly(inpath, outpath, topN, term_colname, exclude, included_subreddits):
-    return _tfidf_wrapper(build_weekly_tfidf_dataset, inpath, outpath, topN, term_colname, exclude, included_subreddits)
 
 def tfidf_authors(inpath="/gscratch/comdata/output/reddit_ngrams/comment_authors.parquet",
                   outpath='/gscratch/comdata/output/reddit_similarity/tfidf/comment_authors.parquet',
                   topN=None,
-                  included_subreddits=None):
+                  included_subreddits=None,
+                  min_df=None,
+                  max_df=None):
 
     return tfidf(inpath,
                  outpath,
                  topN,
                  'author',
                  ['[deleted]','AutoModerator'],
-                 included_subreddits=included_subreddits
+                 included_subreddits=included_subreddits,
+                 min_df=min_df,
+                 max_df=max_df
                  )
 
 def tfidf_terms(inpath="/gscratch/comdata/output/reddit_ngrams/comment_terms.parquet",
                 outpath='/gscratch/comdata/output/reddit_similarity/tfidf/comment_terms.parquet',
                 topN=None,
-                included_subreddits=None):
+                included_subreddits=None,
+                min_df=None,
+                max_df=None):
 
     return tfidf(inpath,
                  outpath,
                  topN,
                  'term',
                  [],
-                 included_subreddits=included_subreddits
+                 included_subreddits=included_subreddits,
+                 min_df=min_df,
+                 max_df=max_df
                  )
 
 def tfidf_authors_weekly(inpath="/gscratch/comdata/output/reddit_ngrams/comment_authors.parquet",
+                         static_tfidf_path="/gscratch/comdata/output/reddit_similarity/tfidf/comment_authors.parquet",
                          outpath='/gscratch/comdata/output/reddit_similarity/tfidf_weekly/comment_authors.parquet',
                          topN=None,
-                         included_subreddits=None):
+                         included_subreddits=None
+                         ):
 
     return tfidf_weekly(inpath,
                         outpath,
+                        static_tfidf_path,
                         topN,
                         'author',
                         ['[deleted]','AutoModerator'],
@@ -66,13 +91,16 @@ def tfidf_authors_weekly(inpath="/gscratch/comdata/output/reddit_ngrams/comment_
                         )
 
 def tfidf_terms_weekly(inpath="/gscratch/comdata/output/reddit_ngrams/comment_terms.parquet",
+                       static_tfidf_path="/gscratch/comdata/output/reddit_similarity/tfidf/comment_terms.parquet",
                        outpath='/gscratch/comdata/output/reddit_similarity/tfidf_weekly/comment_terms.parquet',
                        topN=None,
-                       included_subreddits=None):
+                       included_subreddits=None
+                       ):
 
 
     return tfidf_weekly(inpath,
                         outpath,
+                        static_tfidf_path,
                         topN,
                         'term',
                         [],