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<front>
<journal-meta>
<journal-id journal-id-type="publisher">AGILE-GISS</journal-id>
<journal-title-group>
<journal-title>AGILE: GIScience Series</journal-title>
<abbrev-journal-title abbrev-type="publisher">AGILE-GISS</abbrev-journal-title>
<abbrev-journal-title abbrev-type="nlm-ta">AGILE GIScience Ser.</abbrev-journal-title>
</journal-title-group>
<issn pub-type="epub">2700-8150</issn>
<publisher><publisher-name>Copernicus Publications</publisher-name>
<publisher-loc>Göttingen, Germany</publisher-loc>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="doi">10.5194/agile-giss-1-16-2020</article-id>
<title-group>
<article-title>Whom to Follow? A Comparison of Walking Routes Computed Based on Social Media Photos from Different Types of Contributors</article-title>
</title-group>
<contrib-group><contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Mor</surname>
<given-names>Matan</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Oehrlein</surname>
<given-names>Johannes</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Haunert</surname>
<given-names>Jan-Henrik</given-names>
</name>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author" xlink:type="simple"><name name-style="western"><surname>Dalyot</surname>
<given-names>Sagi</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
</contrib>
</contrib-group><aff id="aff1">
<label>1</label>
<addr-line>Mapping and Geoinformation Engineering, The Technion, Haifa, Israel</addr-line>
</aff>
<aff id="aff2">
<label>2</label>
<addr-line>Geoinformation Group, University of Bonn, Bonn, Germany</addr-line>
</aff>
<pub-date pub-type="epub">
<day>15</day>
<month>07</month>
<year>2020</year>
</pub-date>
<volume>1</volume>
<elocation-id>16</elocation-id>
<permissions>
<copyright-statement>Copyright: &#x000a9; 2020 Matan Mor et al.</copyright-statement>
<copyright-year>2020</copyright-year>
<license license-type="open-access">
<license-p>This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit <ext-link ext-link-type="uri"  xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link></license-p>
</license>
</permissions>
<self-uri xlink:href="https://agile-giss.copernicus.org/articles/1/16/2020/agile-giss-1-16-2020.html">This article is available from https://agile-giss.copernicus.org/articles/1/16/2020/agile-giss-1-16-2020.html</self-uri>
<self-uri xlink:href="https://agile-giss.copernicus.org/articles/1/16/2020/agile-giss-1-16-2020.pdf">The full text article is available as a PDF file from https://agile-giss.copernicus.org/articles/1/16/2020/agile-giss-1-16-2020.pdf</self-uri>
<abstract>
<p>Since many tourists share the photos they take on social media channels, large collections of tourist attraction photos are easily accessible online. Recent research has dealt with identifying popular places from these photos, as well as computing city tourism routes based on these photo collections. Although current approaches show great potential, many tourism attractions suffer from being overrun by tourists, not least because many tourists are aware of only a few tourism hot spots that are trending. In the worst case, automatic city route recommendations based on social media photos will intensify this issue and disappoint tourists who seek individual experiences. In the best case, however, if individual preferences are appropriately incorporated into the route planning algorithm, more personalized route recommendations will be achieved. In this paper, we suggest distinguishing two different types of photo contributors, namely: first-time visitors who are usually tourists who &quot;follow the crowd&quot; (e.g., to visit the top tourist attractions), and repeated visitors who are usually locals who &quot;don’t follow the crowd&quot; (e.g., to visit photogenic yet less well-known places). This categorization allows the user to decide how to trade the one objective off against the other. We present a novel method based on a classification of photographers into locals and tourists, and show how to incorporate this information into an algorithmic routing framework based on the Orienteering Problem approach. In detailed experiments we analyze how choosing the parameter that models the trade-off between both objectives influences the optimal route found by the algorithm, designed to serve the user’s travel objective and preferences in terms of visited attraction types.</p>
</abstract>
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