Top-k Context-Aware Tour Recommendations for Groups

  • Frederick Ayala-GómezEmail author
  • Barış Keniş
  • Pınar Karagöz
  • András Benczúr
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11289)


Cities offer a large variety of Points of Interest (POI) for leisure, tourism, culture, and entertainment. This offering is exciting and challenging, as it requires people to search for POIs that satisfy their preferences and needs. Finding such places gets tricky as people gather in groups to visit the POIs (e.g., friends, family). Moreover, a group might be interested in visiting more than one place during their gathering (e.g., restaurant, historical site, coffee shop). This task is known to be the orienteering under several constraints (e.g., time, distance, type ordering). Intuitively, the POI preference depends on the group, and on the context (e.g., time of arrival, previously visited POIs in the itinerary). Recent solutions to the problem focus on recommending a single itinerary, aggregating individual preferences to build the group preference, and contextual information does not affect the scheduling process. In this paper, we present a novel approach to the following setting: Given a history of previous group check-ins, a starting POI, and a time budget, find top-k sequences of POIs relevant to the group and context that satisfy the constraints. Our proposed solution consists of two primary steps: training a POI recommender system for groups, and solving the orienteering problem on a candidate set of POIs using Monte Carlo Tree Search. We collected a ground-truth dataset from Foursquare, and show that the proposed approach improves the performance in comparison to a Greedy baseline technique.


Recommender systems for groups Tour recommendation Orienteering 



The authors would like to thank Aristides Gionis, and Levente Kocsis for their input to our work. Frederick Ayala-Gómez was supported by the Mexican Postgraduate Scholarship of the Mexican National Council for Science and Technology (CONACYT). This work is partially supported by TUBITAK under the project grant number 117E566, by the Hungarian Government project 2018-1.2.1-NKP-00008: Exploring the Mathematical Foundations of Artificial Intelligence and by the Momentum Grant of the Hungarian Academy of Sciences.


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Copyright information

© Springer Nature Switzerland AG 2018

Authors and Affiliations

  • Frederick Ayala-Gómez
    • 1
    • 2
    Email author
  • Barış Keniş
    • 2
  • Pınar Karagöz
    • 3
  • András Benczúr
    • 4
  1. 1.Faculty of InformaticsEötvös Loránd UniversityBudapestHungary
  2. 2.Computer Science DepartmentAalto UniversityEspooFinland
  3. 3.Computer Engineering Department, METUAnkaraTurkey
  4. 4.Institute for Computer Science and ControlHungarian Academy of Sciences (MTA SZTAKI)BudapestHungary

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