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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>AI-Driven Personalization in Tourism: Enhancing Visitor Experiences Through Real-Time Data</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Ioannis Deliyannis</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Ioanna Afroditi Mazi</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Sofia Maria Poulimenou</string-name>
          <email>poulimenouf@ionio.gr</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Despina</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Elisabeth Filippidou</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Eleni Christodoulopoulou</string-name>
          <xref ref-type="aff" rid="aff2">2</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Anastasios Manos</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Minas Pergantis</string-name>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Dotsoft S.A.</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Athens Greece</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Dotsoft S.A.</string-name>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Athens Greece</string-name>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>Ionian University, Department of Audio and Visual Arts</institution>
          ,
          <addr-line>Corfu</addr-line>
          ,
          <country country="GR">Greece</country>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Ionian University, Department of Tourism</institution>
          ,
          <addr-line>Corfu</addr-line>
          ,
          <country country="GR">Greece</country>
        </aff>
        <aff id="aff2">
          <label>2</label>
          <institution>Ionian University, inArts Research Laboratory</institution>
          ,
          <addr-line>Corfu</addr-line>
          ,
          <country country="GR">Greece</country>
        </aff>
      </contrib-group>
      <abstract>
        <p>The widespread use of big data in several aspects of social sciences, has found application in the tourism industry, especially in enabling deeper insights into travelers' behaviors and preferences. The analysis of large datasets, assists tourism stakeholders to optimize resources and meet the expectations of visitors, with personalization. The INDIANA Project introduces an innovative platform that utilizes artificial intelligence (AI) and big data to transform the tourism experience through highly personalized, real-time recommendations. This platform integrates data from multiple sources, including recommendation systems, cultural organizations, tourism-related businesses and users, to provide visitors with tailored suggestions based on their preferences and real-time conditions such as location, weather, and activity level. Central to the system is the concept of a "Digital Twin," an anonymous profile that reflects the traveler's demographics and behaviors, updated through IoT devices like smartphones and wearables. This allows the platform to offer dynamic, AI-driven recommendations while respecting user privacy. The platform further enhances user interaction through augmented reality (AR), push notifications and an adaptive reasoning system that takes into account the changes that occur on a daily basis, locally, delivering immersive experiences and timely content. With its advanced segmentation of tourist typologies, the system supports targeted recommendations, helping visitors explore lesser-known areas, thereby contributing to the sustainability of tourism by reducing overcrowding at popular destinations. Additionally, INDIANA enables local businesses and cultural organizations to gain valuable insights from visitor data, refining their offerings to align with evolving traveler behaviors. Developed through a collaboration between Ionian University and DOTSOFT S.A. and funded by the European Union, the project represents a significant step forward in integrating technology with tourism, combining personalization, sustainability, and economic development for a comprehensive enhancement of the visitor experience.</p>
      </abstract>
      <kwd-group>
        <kwd>eol&gt;AI in tourism</kwd>
        <kwd>Big data analytics</kwd>
        <kwd>Personalized travel</kwd>
        <kwd>Digital twin</kwd>
        <kwd>Smart tourism</kwd>
        <kwd>Augmented reality in tourism1</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. Introduction</title>
      <p>
        The use of recommendation systems in tourism has changed the way travelers engage with
destinations by offering personalized suggestions for activities and visits. These recommendation
systems often rely on a combination of big data and artificial intelligence (AI) as they gather and
analyze vast amounts of data, including traveler preferences, behaviors, real-time location, and
environmental factors, to create customized itineraries and experiences. Through the application of
machine learning and AI, recommendation systems can continuously refine suggestions by adapting
to the evolving preferences of tourists, offering a dynamic and personalized user experience [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. Big
data plays a fundamental role in the quick processing of diverse inputs, such as user reviews, trends,
real time weather and traffic situations, ensuring timely and relevant recommendations for users
[
        <xref ref-type="bibr" rid="ref2 ref3">2,3</xref>
        ]. Furthermore, the optimization of visitor distribution by these systems, can support sustainable
tourism, prevent overcrowding at popular sites and promote lesser-known attractions [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ]. The
combination of AI and big data in tourism recommendation systems enhances user satisfaction while
fostering a deeper connection with local cultures and destinations [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ].
      </p>
      <p>This research focuses on the above-mentioned aspects in the creation of an innovative tourism
recommendation system, based on AI and Big Data. This system is designed in the framework of a
European co-funded project, named “Indiana: Intelligent Management System”. The INDIANA
project involves the research, design, and development of an innovative platform that disseminates
tourist and cultural Points of Interest (POIs) to travelers, on a highly personalized level, with the use
of state-of-the-art technologies, Big Data and Artificial Intelligence. The type of service it will
provide, is a recommendation system that considers the traveler’s profile, personalized requirements,
position, disposition, and real-time conditions. The users of this innovative service are mainly
travelers and professionals in the tourism and cultural field. Users will aid the design and
dissemination of personalized services, aiming to create on-demand service for travelers, in the form
of a “Digital Twin”. This will be implemented via the design and deployment of a travelers’ data
repository consisting of demographics, physical and expert activities, number of participants, and
their current location, which will then form specific clauses or “expert rules”.</p>
      <p>Innovation lies in the deployment of AI technologies for achieving a higher standard of
personalization in tourist recommendation systems, through real-time data and big data analysis and
customization of recommendations. Overall, the project aims to disseminate tourist and cultural
information and services as an added value to travelers and establish the personalization of services
as a brand for professionals to attract travelers more successfully. The innovative final product will
be up for immediate commercial exploitation. Last but not least, a crucial aspect of this project's
implementation is the integration of Information Technologies with Tourism, Culture, and Creative
Industries, as well as the spread of technical expertise and technology from research institutions to
businesses.</p>
    </sec>
    <sec id="sec-2">
      <title>2. Methodology</title>
      <p>There are six phases during the implementation of the INDIANA project, each involving different
work packages, distributed between researchers from the Ionian University (IU) and the
collaborating company named “DOTSOFT S.A.”. The first phase aims to define the requirements for
the functions of the system as a whole and to integrate them into the architecture, in conjunction
with the development of the technical specifications/standards of the platform. The requirements
analysis report, describing the non-functional and functional requirements of potential users, a
description, and the UML diagrams of usage scenarios, will be implemented by the IU. In this stage,
DOTSOFT S.A. will be involved in the report on the system’s architecture.</p>
      <p>In the second phase, the infrastructure for data storage will be centered around a Data Hub and
ETL tools will be developed and utilized for data transformation and integration into the Data Hub.
Additionally, a curated repository of expert recommendations will be maintained to enrich the
system's recommendation capabilities. The company is responsible for the implementation of this
stage.</p>
      <p>The third phase aims to collect models of the traveler's tourist experience, analyze them into
parameters, and match them to data-expert activities. To capture the result of the "matching"
between the traveler's behavioral model and the categories of information and services provided by
professionals in the tourism-culture industry, a set of indicators will be designed regarding the
traveler's "Quality of Destination Experience". These indicators will allow the system's feedback on
the traveler's satisfaction regarding the added value of the tourist experience provided and the
"feedback" of the business models.</p>
      <p>The next phase shared between the IU and the company is to develop code for creating a
pervasive data-collecting platform and to create augmented (AR) tourist experience
recommendations for travelers.</p>
      <p>During the fifth phase, collaborators work towards the integration and test application of the
recommendation system. A test operation and a pilot application of the platform on real data will be
carried out, to confirm the added value to the tourist and cultural experience of the traveler, as well
as debug. Also, publications deriving from previous research conducted throughout the phases will
serve as publicity for the project.</p>
      <p>Lastly, in the sixth phase, an economic impact assessment will be conducted, by examining
relevant economic indicators to gauge the influence of the metasearch engine on the tourism
industry, thereby closing the feedback loop for iterative enhancement of the final product.</p>
      <p>It is deemed suitable to commence the procedure from the third stage, as a review and assessment
of existing business models of tourism recommendation systems could be used as a guide and may
indicate gaps that the INDIANA project could strive to fill.</p>
      <p>This analysis aims to record and categorize the most widespread Business Models in the field of
information and service provision to travelers so as to showcase the gaps that exist in the market.
The ultimate goal of the research was not only to map existing business models of the traveler’s
tourism experience, but mainly to analyze them into parameters, and match them to data – expert
activities. The result of the "matching" between the traveler’s behavioral model and the categories of
information and services provided by professionals in the tourism and cultural sector, a set of
indicators related to the “Quality of Destination Experience” of the traveler will be designed. These
indicators are tailored to measure traveler satisfaction in a tourism context, assessing added value
and the perceived quality of experiences. By measuring satisfaction metrics directly linked to tourism
outcomes (e.g., enjoyment, cultural enrichment, convenience), the system’s effectiveness can be
evaluated with respect to its impact on the traveler’s destination experience. Most recommendation
systems assess their effectiveness through standard machine learning metrics while the INDIANA
platform is moving beyond conventional metrics, focusing on specialization of indicators to target
the “Quality of Destination Experience”. These indicators will allow for the feedback of the system
with the traveler’s satisfaction regarding the added value of the tourism experience provided to them
and the "feedback" of the business models.</p>
    </sec>
    <sec id="sec-3">
      <title>3. Reviewing the Business Models of Selected Tourism</title>
    </sec>
    <sec id="sec-4">
      <title>Recommendation Systems</title>
      <p>
        Our initial investigation into actual recommendation systems, designed to be used by travelers,
provides a comprehensive overview of various business models in the travel and tourism industry,
focusing on different types of businesses and their operational features. For this scope, we gathered
the most frequently mentioned recommendation systems in travel sites by searching for various
business models and their alternatives. We based the research on key concepts such as context
awareness, social media, IoT and augmented reality, big data and user modelling [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ]. Sentiment
analysis had also been suggested during the clustering procedure, in order to rank attractions
according to the user's preferences as well as contextual information [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ]. Conducting this research
and clustering was important to pinpoint different provided services among popular internet sites
like Trip Advisor, Booking, Airbnb, etc. The conceptual model took into consideration the above
future aspects such as visitor profiles, services repository, big data mining, and trip planner items
[
        <xref ref-type="bibr" rid="ref8">8</xref>
        ].
      </p>
      <p>As business models tend to adapt to emerging technology advancements, several travel sites
previously functioning as online travel agencies, like Booking, enrich their services by providing
tours and activity packages. Subsequently, it became crucial to map the various services several
travel sites provide, to be able to detect possible gaps in their operational functions and general
service. The list of systems is selected below based on their search engine popularity (Google search
on tourist recommendation systems) and a review on forums regarding highly recommended
systems.</p>
      <p>The list was then enriched by identifying and listing their main business model, which helps us
categorize systems into several types, such as tour/activity marketplaces, Online Travel Agencies
(OTAs), experience providers, and digital nomad-related services.</p>
      <p>•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•</p>
      <sec id="sec-4-1">
        <title>Airbnb Experiences - Tour/Activity Marketplace</title>
        <p>Booking - Online Travel Agency (OTA)
Culture Trip - Experience
Digital Nomad World - Digital Nomad Review (DN-REVIEW)
Eventbrite - Tour/Activity Marketplace
Expedia - Online Travel Agency (OTA)
GetYourGuide - Tour/Activity Marketplace
Google Travel - Search
Kayak - Metasearch
Live like local (Paros Antiparos) - Experience
Live the World - Experience
Nomad List - Digital Nomad Review (DN-REVIEW)
ToursByLocals - Tour/Activity Marketplace
Trip Advisor - Metasearch
Trip Canvas (AAA Travel) - Experience + Tour/Activity Marketplace
Tripit - Planner
Viator (TripAdvisor) - Tour/Activity Marketplace
Wanderlog - Experience
WithLocals - Tour/Activity Marketplace</p>
        <p>Yelp – Metasearch</p>
        <p>The data is structured using a spreadsheet to list each business using several criteria, including
its global reach, whether it offers free services, and if it includes features like AI assistance,
accommodation/travel booking, itinerary planning, ready-made itineraries, simple activity
suggestions, tour orientation, local activities, reviews/ratings, smart functions (e.g., push
notifications, weather updates, chat), and discovery tools.</p>
        <p>Beyond business types, the other key insights from our research data include the following:
•
•
•
•</p>
        <p>Global Reach: Companies are classified based on their operational scope—either global (G),
global with limitations (GL), or local (L). Most listed businesses have a global presence.
Service Offering: The document identifies whether the services are free and if they offer AI
assistant features. Most services are not free, and AI assistance is not commonly mentioned,
indicating a potential area for innovation.</p>
        <p>Operational Features: It highlights various operational features, including
accommodation/travel booking capabilities, itinerary planning, ready itineraries, activity
suggestions, a focus on tours, local activities, and the presence of reviews/ratings. These
features suggest the businesses' efforts to cater to diverse traveler needs, from
accommodation to activity planning.</p>
        <p>Smart Functions and Discovery: Few businesses currently utilize smart functions or
discovery tools, pointing to an area where the travel industry could further integrate
technology to enhance customer experience.</p>
        <p>
          This summary reflects the current landscape of business models in the tourism sector,
emphasizing the diversity of services available to modern travelers and the opportunities for
incorporating advanced technologies to improve the travel experience. Current research on business
models in tourism is mostly taxonomical focusing on different variations [
          <xref ref-type="bibr" rid="ref9">9</xref>
          ]. At the same time, the
use of technology for data analysis may transform service provision and value proposition through
the exchange of resources such as user experience and culture [
          <xref ref-type="bibr" rid="ref10">10</xref>
          ].
        </p>
        <p>Within the INDIANA project, the preference for using artificial intelligence (AI) as a processor
over traditional approaches is driven by several compelling advantages. AI's ability to analyze vast
datasets dynamically allows for the personalization of tourist experiences at an unprecedented scale
and depth. Unlike traditional methods, which often rely on static, one-size-fits-all recommendations,
AI can adapt to the evolving preferences and behaviors of each user, ensuring that the cultural and
tourist recommendations are not only relevant but also timely and context-aware. This adaptability
extends to real-time adjustments based on a variety of factors, including location, weather, and the
current density of visitors at points of interest, optimizing the visitor experience while aiding in
sustainable tourism management. Moreover, AI's predictive capabilities enable the platform to
forecast trends and preferences, facilitating more effective planning and resource allocation for
tourism operators. In essence, the use of AI as a processor within the INDIANA project represents a
paradigm shift towards more intelligent, responsive, and personalized tourism and cultural
exploration, harnessing the power of technology to enrich cultural experiences in a way that
traditional methods cannot match. The next section describes the investigation implemented by the
INDIANA system designers to provide a new service that collects all the important functionalities
for the intended purpose.</p>
      </sec>
    </sec>
    <sec id="sec-5">
      <title>4. System Design and Implementation</title>
      <p>• IoT Integration: To monitor and manage the flow of visitors at points of interest, aiding in
crowd management and enhancing visitor experience.</p>
      <p>Research and Community Engagement:
• Stakeholder Involvement: Engaging public sector bodies and businesses in the tourism and
cultural sectors, particularly in Corfu, to recognize project benefits and bolster its
applicability. This involves collaboration with tourist offices and enterprises, leveraging
their expertise and insights.
• Dissemination and Development: The project plans to share its findings with the scientific
community and stakeholders through publications, virtual workshops, social media
announcements, and articles aimed at the commercial and business community.
• Corporate Identity and Outreach:
ü Development of a brand identity, bilingual website, and social media presence.
ü Promotion of the project through partners' communication channels, MOOCs,
virtual and physical workshops (Living labs), and informative signage at key
locations.
ü Utilization of QR codes for easy app downloads.
ü Organization of an information week in Corfu to introduce the program to students,
residents, and visitors through open presentations, work meetings, and distribution
of printed and digital materials designed for this purpose.</p>
      <p>Connecting those characteristics to the previous research on business models, the INDIANA
project aims to adopt a highly personalized approach to travel and cultural experiences, leveraging
data analytics, IoT, and augmented reality. This approach aligns with trends in the tourism sector
towards more customized, interactive, and sustainable experiences, showcasing a shift from
traditional one-size-fits-all models to dynamic, user-centered platforms.</p>
    </sec>
    <sec id="sec-6">
      <title>5. Results &amp; Discussion</title>
      <p>When contrasted with other existing systems, as described before, several key differences and
advancements become evident:</p>
      <p>ü Personalization and User Profiles
INDIANA Project: Prioritizes deep personalization based on dynamic user profiles, which include
not just demographic information but also real-time data on physical activities, location, and the
traveler's current mood or companions. This level of customization goes beyond basic preferences to
adapt recommendations in real time.</p>
      <p>Other Systems: Generally offer personalization mainly based on static user preferences and
historical data. They may lack the capability to adjust recommendations based on real-time physical
activity or the specific context of the user's current situation.</p>
      <p>ü Integration of Modern Technologies
INDIANA Project: Integrates a wide range of contemporary technologies, such as IoT for crowd
management and augmented reality for on-demand content, offering a more immersive and
informed tourism experience.</p>
      <p>Other Systems: While they might utilize AI for recommendations and have mobile applications, the
integration of IoT and AR is not as prevalent, limiting their ability to offer real-time, context-aware
content and manage visitor flow effectively.</p>
      <p>ü Stakeholder Engagement and Community Involvement
INDIANA Project: Involves a broad spectrum of stakeholders from the outset, including public
sector bodies, local businesses, and the wider community in Corfu. This approach aims to ensure the
project's benefits are maximized for all involved, from tourists to local service providers.
Other Systems: They may primarily focus on the end-user experience without a similar level of
engagement with the broader ecosystem of stakeholders in the tourism and cultural sectors,
potentially limiting their impact and sustainability.</p>
      <p>ü Educational and Dissemination Activities
INDIANA Project: Plans for extensive dissemination and educational activities, including virtual
workshops, social media campaigns, and open information sessions for locals and visitors in Corfu.
This comprehensive outreach is designed to foster community support and awareness.
Other Systems: Typically focus on user acquisition and marketing rather than community
education and engagement, which may not build as strong a foundation for long-term adoption and
support within the local context.</p>
      <p>ü</p>
      <sec id="sec-6-1">
        <title>Crowd Management</title>
        <p>INDIANA Project: Utilizes IoT technologies to monitor and manage the number of visitors at points
of interest, enhancing the visitor experience by preventing overcrowding and ensuring
sustainability.</p>
        <p>Other Systems: Often lack real-time crowd management capabilities, which can lead to issues with
overcrowding at popular tourist sites, detracting from the visitor experience and posing challenges
to sustainable tourism.</p>
      </sec>
    </sec>
    <sec id="sec-7">
      <title>6. Conclusion and Future Work</title>
      <p>The INDIANA project represents an important advancement in the tourism and cultural sector,
integrating state-of-the-art technological features, supported by the synthesis of contemporary
innovations and personalized user engagement. Initial key findings from the project design and
implementation, accent the potential of such technological integrations to the significant
enhancement of the quality and sustainability of cultural experiences for tourists. The use of visitor
profiling, leverages data analytics and user preferences, enabling the platform to customize
experiences for each visitor, ensuring that they receive content that is engaging to them. On the
other hand, the use of augmented reality (AR) and Internet of Things (IoT) technologies, in particular,
has demonstrated the capacity to encompass even more immersive, tailored, and engaging content.
AR allows visitors to overlay digital information onto the physical world, providing them with a
substantial understanding of their visiting surroundings. Meanwhile, IoT technologies enable
realtime data collection and analysis, allowing for dynamic content adaptation and effective crowd
management. As far as the latter is concerned, the platform may assist stakeholders in mitigating
over-tourism and minimizing the negative impacts at a destination.</p>
      <p>
        Reflecting on the project's contributions, INDIANA sets a new benchmark for how tourism and
cultural heritage can be experienced in the digital age. It offers a blueprint for future innovations in
the sector, highlighting the importance of personalization, technological integration, and stakeholder
engagement. The role of personalization has been outlined by many researchers in the past years
[
        <xref ref-type="bibr" rid="ref11 ref12 ref13 ref14">11, 12, 13, 14</xref>
        ], but the Indiana project elaborates even more and presents the ability for constant
customization and proposal modifications, using AI algorithms.
      </p>
      <p>The main innovation lies in the use of state-of-the-art technologies and the design of the system
can be adapted without major restructuring, according to future input in the field. Furthermore,
the project underlines the value of real-time data analytics in enhancing visitor experiences and
operational efficiency. Potential areas for future research could explore the scalability of such
platforms across different cultural contexts and their impact on local economies and community
engagement. Additionally, investigating the long-term effects of personalized tourism experiences
on cultural heritage preservation presents an important aspect for exploration.</p>
      <p>For the further development and deployment of the INDIANA platform, several considerations
emerge. Firstly, the scalability and adaptability of the technology to different cultural and
geographical contexts are paramount. This involves all kinds of technical aspects but also the
customization of content to respect and highlight the unique details of each destination's heritage.
Customization and personal recommendation are relevant to the users’ needs but at the same time
respect the unique characteristics of each destination. Secondly, ongoing engagement with and
feedback from all stakeholders—including tourists, local communities, and the public and private
sectors—is essential to refine and enhance the platform's offerings. Finally, addressing privacy and
data security concerns will be crucial in maintaining user trust and compliance with global data
protection regulations. The continued evolution of the INDIANA platform should aim not only to
leverage emerging technologies but also to foster an inclusive, sustainable, and enriching tourism
experience that benefits all stakeholders involved.</p>
    </sec>
    <sec id="sec-8">
      <title>Acknowledgements</title>
      <p>This research has been co-financed by the European Regional Development Fund of the European
Union and Greek national funds through the Operational Program Competitiveness,
Entrepreneurship and Innovation, under the call "Partnerships between Enterprises and Research
and Knowledge Transfer Organizations in the fields of RIS3 of the Region Ionian Islands with the id:
IONP2-0075453. Gratitude towards all collaborators and participants in the project.</p>
    </sec>
    <sec id="sec-9">
      <title>Declaration on Generative AI</title>
      <sec id="sec-9-1">
        <title>The authors have not employed any Generative AI tools.</title>
      </sec>
    </sec>
    <sec id="sec-10">
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