groceryheist/cdsc_reddit
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limit output to only the subreddits in clusters.

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This commit is contained in:
Nathan TeBlunthuis 2025-01-11 19:52:54 -08:00
parent 9892315234
commit d0f37fe33a
2 changed files with 18 additions and 8 deletions
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9
similarities/similarities_helper.py
View File

@ -17,6 +17,7 @@ from datetime import datetime
from pathlib import Path
import pickle
import pytz
import duckdb
class tf_weight(Enum):
MaxTF = 1
@ -179,7 +180,7 @@ def similarities(inpath, simfunc, term_colname, outfile, min_df=None, max_df=Non
else:
proc_sims(sims, outfile)
def write_weekly_similarities(path, sims, week, names):
def write_weekly_similarities(path, sims, week, names, clusters=None):
sims['week'] = week
p = pathlib.Path(path)
if not p.is_dir():
@ -187,7 +188,11 @@ def write_weekly_similarities(path, sims, week, names):
# reformat as a pairwise list
sims = sims.melt(id_vars=['_subreddit','week'],value_vars=names.subreddit.values)
sims.to_parquet(p / week)
if clusters is not None:
cluster_sims = duckdb.sql("SELECT sims.* FROM sims SEMI JOIN clusters ON _subreddit == sr_i AND variable == sr_j").df()
cluster_sims.to_parquet(p / week)
def column_overlaps(mat):
non_zeros = (mat != 0).astype('double')

13
similarities/weekly_cosine_similarities.py
View File

@ -31,7 +31,7 @@ outfile="/gscratch/comdata/users/nathante/competitive_exclusion_reddit/data/simi
# static_tfidf = "/gscratch/comdata/users/nathante/competitive_exclusion_reddit/data/tfidf/comment_authors_compex.parquet"
# dftest = spark.read.parquet(static_tfidf)
def _week_similarities(week, simfunc, tfidf_path, term_colname, included_subreddits, outdir:Path, subreddit_names, nterms, topN=None, min_df=None, max_df=None):
def _week_similarities(week, simfunc, tfidf_path, term_colname, included_subreddits, outdir:Path, subreddit_names, nterms, topN=None, min_df=None, max_df=None, clusters=None):
term = term_colname
term_id = term + '_id'
term_id_new = term + '_id_new'
@ -57,8 +57,9 @@ def _week_similarities(week, simfunc, tfidf_path, term_colname, included_subredd
sims = pd.DataFrame(sims)
sims = sims.rename({i: sr for i, sr in enumerate(subreddit_names.subreddit.values)}, axis=1)
sims['_subreddit'] = subreddit_names.subreddit.values
outfile = str(Path(outdir) / str(week))
write_weekly_similarities(outfile, sims, week, subreddit_names)
write_weekly_similarities(outfile, sims, week, subreddit_names, clusters=clusters)
def pull_weeks(batch):
return set(batch.to_pandas()['week'])
@ -78,7 +79,7 @@ def cosine_similarities_weekly_lsi(*args, n_components=100, lsi_model=None, **kw
return cosine_similarities_weekly(*args, simfunc=simfunc, **kwargs)
#tfidf = spark.read.parquet('/gscratch/comdata/users/nathante/competitive_exclusion_reddit/data/tfidf_weekly/comment_submission_terms_tfidf.parquet')
def cosine_similarities_weekly(tfidf_path, outfile, term_colname, included_subreddits = None, topN = None, simfunc=column_similarities, min_df=0, max_df=None, static_tfidf_path=None):
def cosine_similarities_weekly(tfidf_path, outfile, term_colname, included_subreddits = None, topN = None, simfunc=column_similarities, min_df=0, max_df=None, static_tfidf_path=None, clusters_path=None):
print(outfile)
# do this step in parallel if we have the memory for it.
# should be doable with pool.map
@ -99,8 +100,12 @@ def cosine_similarities_weekly(tfidf_path, outfile, term_colname, included_subre
weeks = weeks.week.values
conn.close()
if clusters is not None:
clusters_raw = pd.read_feather(clusters)
clusters = duckdb.sql("SELECT A.subreddit AS sr_i, B.subreddit AS sr_j FROM clusters_raw AS A JOIN clusters_raw AS B ON A.cluster == B.cluster WHERE A.cluster != -1 AND B.cluster != -1").df()
print(f"computing weekly similarities")
week_similarities_helper = partial(_week_similarities,simfunc=simfunc, tfidf_path=tfidf_path, term_colname=term_colname, outdir=outfile, min_df=min_df, max_df=max_df, included_subreddits=included_subreddits, topN=None, subreddit_names=subreddit_names,nterms=nterms)
week_similarities_helper = partial(_week_similarities,simfunc=simfunc, tfidf_path=tfidf_path, term_colname=term_colname, outdir=outfile, min_df=min_df, max_df=max_df, included_subreddits=included_subreddits, topN=None, subreddit_names=subreddit_names,nterms=nterms, clusters = clusters)
# for week in weeks:
# week_similarities_helper(week)