Reverse direction-based surrounder queries for mobile recommendations
X Guo, Y Ishikawa, Y Xie, A Wulamu - World Wide Web, 2017 - Springer
This paper proposes a new spatial query called a reverse direction-based surrounder
(RDBS) query, which retrieves a user who is seeing a point of interest (POI) as one of their
direction-based surrounders (DBSs). According to a user, one POI can be dominated by a
second POI if the POIs are directionally close and the first POI is farther from the user than
the second is. Two POIs are directionally close if their included angle with respect to the user
is smaller than an angular threshold 𝜃. If a POI cannot be dominated by another POI, it is a …
(RDBS) query, which retrieves a user who is seeing a point of interest (POI) as one of their
direction-based surrounders (DBSs). According to a user, one POI can be dominated by a
second POI if the POIs are directionally close and the first POI is farther from the user than
the second is. Two POIs are directionally close if their included angle with respect to the user
is smaller than an angular threshold 𝜃. If a POI cannot be dominated by another POI, it is a …
Reverse direction-based surrounder queries
X Guo, Y Ishikawa, A Wulamu, Y Xie - Web Technologies and Applications …, 2015 - Springer
This paper proposes a new spatial query called the reverse direction-based surrounder
(RDBS) query, which retrieves a user who is seeing a point of interest (POI) as one of their
direction-based surrounders (DBSs). According to a user, one POI can be dominated by a
second POI if the POIs are directionally close and the first POI is farther from the user than
the second is. Two POIs are directionally close if their included angle with respect to the user
is smaller than an angular threshold, θ. If a POI cannot be dominated by another POI, it is a …
(RDBS) query, which retrieves a user who is seeing a point of interest (POI) as one of their
direction-based surrounders (DBSs). According to a user, one POI can be dominated by a
second POI if the POIs are directionally close and the first POI is farther from the user than
the second is. Two POIs are directionally close if their included angle with respect to the user
is smaller than an angular threshold, θ. If a POI cannot be dominated by another POI, it is a …
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