Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deconvolving Feedback Loops in Recommender Systems   Collaborative filtering is a popular technique to infer users' preferences on
new content based on the collective information of all users preferences.
Recommender systems then use this information to make personalized suggestions
to users. When users accept these recommendations it creates a feedback loop in
the recommender system, and these loops iteratively influence the collaborative
filtering algorithm's predictions over time. We investigate whether it is
possible to identify items affected by these feedback loops. We state
sufficient assumptions to deconvolve the feedback loops while keeping the
inverse solution tractable. We furthermore develop a metric to unravel the
recommender system's influence on the entire user-item rating matrix. We use
this metric on synthetic and real-world datasets to (1) identify the extent to
which the recommender system affects the final rating matrix, (2) rank
frequently recommended items, and (3) distinguish whether a user's rated item
was recommended or an intrinsic preference. Our results indicate that it is
possible to recover the ratings matrix of intrinsic user preferences using a
single snapshot of the ratings matrix without any temporal information.

7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat