Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Successive Point-of-Interest Recommendation with Local Differential
  Privacy   A point-of-interest (POI) recommendation system performs an important role in
location-based services because it can help people to explore new locations and
promote advertisers to launch advertisements at appropriate locations. The
existing POI recommendation systems require raw check-in history of users,
which might cause location privacy violations. Although there have been several
matrix factorization (MF) based privacy-preserving recommendation systems, they
can only focus on user-POI relationships without considering the human
movements in check-in history. To tackle this problem, we design a successive
POI recommendation framework with local differential privacy, named SPIREL.
SPIREL uses two types of information derived from the check-in history as input
for the factorization: a transition pattern between two POIs and the visit
counts of POIs. We propose a novel objective function for learning the user-POI
and POI-POI relationships simultaneously. We further integrate local
differential privacy mechanisms in our proposed framework to prevent potential
location privacy breaches. Experiments using four public datasets demonstrate
that SPIREL achieves better POI recommendation quality while accomplishing
stronger privacy protection.

11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
16
The categories of this paper are: stat
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph