Implementation for the paper Time-aware Collaborative Topic Regression: Towards Higher Relevance in Textual Item Recommendation.
Extends Collaborative Topic Modelling CTR Recommender System
used in the work of Wang and Blei
to consider the temporal aspect in recommendation.
This project generates a recommender system model. To evaluate the generated model,
use the Recommender Evaluator System, which is responsible for splitting the labeled data
and computing the evaluation metrics.
- python 3.5
- numpy
This work uses dataset collected from citeulike, you can downlowd it from here
@inproceedings{DBLP:conf/sigir/Alzogbi18,
author = {Anas Alzogbi},
title = {Time-aware Collaborative Topic Regression: Towards Higher Relevance
in Textual Item Recommendation},
booktitle = {Proceedings of the 3rd Joint Workshop on Bibliometric-enhanced Information
Retrieval and Natural Language Processing for Digital Libraries {(BIRNDL}
2018) co-located with the 41st International {ACM} {SIGIR} Conference
on Research and Development in Information Retrieval {(SIGIR} 2018),
Ann Arbor, USA, July 12, 2018.},
pages = {10--23},
year = {2018},
crossref = {DBLP:conf/sigir/2018birndl},
url = {http://ceur-ws.org/Vol-2132/paper2.pdf},
timestamp = {Mon, 09 Jul 2018 18:23:12 +0200},
biburl = {https://dblp.org/rec/bib/conf/sigir/Alzogbi18},
bibsource = {dblp computer science bibliography, https://dblp.org}
}
The following directory tree illustrates how the structure of data directory will be:
|__ [USER_RATINGS_FILE.dat]
|__ [SPLIT_DIRECTORY]
......|__ fold[1-5]
......|......|_ train-fold_[1-5]
-items.dat
......|......|_ test-fold_[1-5]
-items.dat
......|......|_ train-fold_[1-5]
-users.dat
......|......|_ test-fold_[1-5]
-users.dat
......|__ [EXPERIMENT_DIRECTORY]
.............|_ [EXPERIMENT_NAME]
_eval_results.txt
.............|_ results-matrix.npy
.............|_ fold[1-5]
.............|......|_ final-U.dat
.............|......|_ final-V.dat
.............|......|_ score.npy
.............|......|_ results-users.dat