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Watch the video: https://wp.me/p3RLHQ-kO2
Learn more: https://eurohpc-ju.europa.eu/
and
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Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter
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For more info http://www.oecd.org/cfe/leed/lowcarbon.htm
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At the second CEI – SEENET- MTP Workshop “Promotion of physics in the CEI countries and Integrating Access to Research Infrastructures in Europe", Sofia, Bulgaria, 23-25 November 2014
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Watch the video: https://wp.me/p3RLHQ-kO2
Learn more: https://eurohpc-ju.europa.eu/
and
http://hpcuserforum.com
Sign up for our insideHPC Newsletter: http://insidehpc.com/newsletter
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http://www.yourdatastories.eu
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http://www.yourdatastories.eu
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region, including the main o
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Linked Data for Cross-Domain Decision-making in Tourism
1. ENTER 2015 Research Track Slide Number 1
Linked Data for Cross-Domain
Decision-making in Tourism
Marta Sabou, Adrian M.P. Brașoveanu, & Irem Önder
MODUL University Vienna, Austria
{marta.sabou, adrian.brasoveanu,irem.onder} @modul.ac.at
http://www.modul.ac.at
2. ENTER 2015 Research Track Slide Number 2
Agenda
• Motivation
• Purpose of the study
• Creating the ETIHQ linked data dataset
and dashboard
• Summary
• Lessons learned
3. ENTER 2015 Research Track Slide Number 3
Motivation
• Tourism decision making (i.e. benchmarking,
forecasting) does not only depend on pure
tourism statistics such as arrivals, bednights and
capacity) but must also consider data from other
domains.
• For example:
– Economic indicators (i.e. Inflation rate, unemployment
rate, currency exchange rate) are interlinked with
tourism consumption.
– Environmental indicators (i.e. CO2 emissions) could be
affected in heavily touristic areas.
4. ENTER 2015 Research Track Slide Number 4
Motivation cont.
• Most tourism decision support systems
usually only cater for investigating tourism
indicators in isolation from economic or
sustainability indicators.
• Semantic Web and Linked Data (LD)
technologies have been developed to
support the intelligent integration of data
on the Web (Berners-Lee et al., 2001).
5. ENTER 2015 Research Track Slide Number 5
What is Linked Data?
• Linked Data technologies provide a
mechanism to publish “intelligent” data on
the Web and creating links between
elements of different datasets, thus
facilitating their integration.
6. ENTER 2015 Research Track Slide Number 6
Purpose of the study
• To create the technical solution for
providing TourMIS (tourism related
database) as LD
• To implement a cross-domain decision
support dashboard
• To reflect on the main lessons learned
while using LD technology for tourism.
7. ENTER 2015 Research Track Slide Number 7
Related Work
• Sources of Tourism Indicators: UN’s World
Tourism Organization (UNWTO), Eurostat,
TourMIS, The World Bank.
• Tourism Decision Support Systems:
TourMIS, PATA, Bastis
8. ENTER 2015 Research Track Slide Number 8
Sources of Tourism
indicators
UNWTO Eurostat WorldBank ETIHQ
Country Y Y Y Y
City N N N Y
Year Y Y Y Y
Month N Y N Y
9. ENTER 2015 Research Track Slide Number 9
Tourism decision support
systems
Coverage Indicator’s
domain
Technology
Bastis Baltic Sea
Region
Mixed Wiki/community
contributions
Pata Asia Tourism Not known
(commercial)
ETIHQ Europe Tourism,
economics,
environment
LD (QB)
10. ENTER 2015 Research Track Slide Number 10
Creating the ETIHQ Linked Data
Dataset
• Data Cleaning
• Semantic Modeling
• RDB2RDF conversion
• Interlinking
• Linked Data Interface Publishing
11. ENTER 2015 Research Track Slide Number 11
TourMIS - a key source of European Tourism
Statistics
Developed at
… supported and used by
several national and
European tourism
organisations
Data since 1985
10+ indicators
About 154 destinations
Annual and monthly
measurements
Heterogeneous
ownership
Daily Updates
12. ENTER 2015 Research Track Slide Number 14
Indicators in ETIHQ
• Economic Indicators
– GDP growth (annual %);
– Inflation, consumer prices (annual %);
– Consumer price index (2005 = 100);
– Official exchange rate (LCU per US$, period avg);
– Unemployment rate, total (%of total labor force).
• Sustainability Indicators
– CO2 emissions (kt);
– Forest area (% of land area);
– Roads, paved (% of total roads);
– Agricultural land (% of land area).
13. ENTER 2015 Research Track Slide Number 15
Example: German tourists in
Venice, Budapest and Dubrovnik
14. ENTER 2015 Research Track Slide Number 16
Adding a new indicator to the list
16. ENTER 2015 Research Track Slide Number 18
Summary
• In this paper we described advances to the state of the art
in terms of
(1) publishing TourMIS data as linked data;
(2) interlinking TourMIS data with data form other data sources
covering the economic and statistical domains;
(3) creating a visual dashboard that explores this integrated data
to support cross-domain decision making processes.
17. ENTER 2015 Research Track Slide Number 19
Lessons Learned
• LD technologies, greatly facilitate data integration at the
syntactic and semantic level to establish links between
various datasets.
• Data compatibility (had to make changes to the TourMIS
dataset before publishing it).
• Licensing problems due to the heterogeneous origin of
the TourMIS data set.
18. ENTER 2015 Research Track Slide Number 20
Thank you!
irem.onder@modul.ac.at
marta.sabou@modul.ac.at
adrian.brasoveanu @modul.ac.at
Editor's Notes
Understanding correlations between tourism and economic indicators, for example, can prepare tourism managers to plan their activities according to future financial predictions. Or, contrasting tourism and environmental indicators, as another example, can shed light on environmental impacts (e.g., increased CO2 emissions in heavily touristic areas) potentially caused by (mass)tourism in host countries thus helping to avoid them in the future. Therefore, such cross-domain queries are an important decision support instrument for tourism decision makers
Most tourism decision support systems usually only cater for investigating tourism indicators in isolation from economic or sustainability indicators.
The main reason for this is that technologically, merging data from various sources of indicators is challenging and relies on much manual effort
MS: SW and LD technologies have been developed exactly for addressing such data integration challenges.
However, to date no significant amount of tourism statistics have been published as linked data.
MS: this is a new (more structured version) of the previous slide. See if you like it more
Some examples of tourism decision support systems include DieToRecs, TourBO and MobyRec. However, the studies related to travel recommendation systems are directed towards the consumer (i.e., the individual tourists) rather than the tourism managers therefore focusing on different content (i.e., destinations, touristic offers, events).
There are also yield management systems that are used mainly in hospitality and aviation industry.
This slide depicts the main sources for tourism indicators and their key differences in terms of what data is provided and how. [Remove if this is too much detail]
To important conclusions:
Data access usually through techniques that hamper easy automatic integration
TourMIS provides the most fine-grained data focusing on destinations and reporting monthly figures as opposed to most other sources that provide only contry level and yearly statistics
So, let‘s talk about integration first.
Sources of Tourism Indicators: UN’s World Tourism Organization (UNWTO), Eurostat, TOurMIS, The World Bank.
Although there are various data sources that offer a multitude of indicators in the area of tourism and beyond, the publication of these datasets as LD has been primarily undertaken by third-parties rather than data owners, resulting in low-quality datasets that simply expose database tables into an RDF format without enriching them with domain-specific metadata or linking them to other datasets. Upon inspection, many of these datasets were slow or returned erroneous (or no) data
Some examples of tourism decision support systems include DieToRecs, TourBO and MobyRec. However, the studies related to travel recommendation systems are directed towards the consumer (i.e., the individual tourists) rather than the tourism managers therefore focusing on different content (i.e., destinations, touristic offers, events).
There are also yield management systems that are used mainly in hospitality and aviation industry.
Data Cleaning – This step prepares the raw data for being published as Linked Data and it is especially needed for legacy databases.
Semantic Modelling – Selecting vocabularies, creating ontologies and a structure for the dataset.
RDB2RDF conversion – Databases are transformed into triples using the process defined in the Semantic Modelling step.
Interlinking – Linked Data offers simple mechanisms, such as links, to extend a dataset with connections towards other linked datasets.
Linked Data Interface Publishing – exposes the data of the Web both in a way that it can be browsed by people and queried programmatically.
MS: remove D26.1 from the title
MS: remove D26.1 from the title
These are coming from TourMIS, WorldBank and EuroStat
Let’s say that we want to see the development of German tourists in cities, we chose Venice, Budapest and Dubrovnik. We choose the time frame of dec 2008-dec 2014 (6 years). This data comes from TourMIS and it is bednights data. You can also ask to retrieve arrivals, capacity data as well.
On the right hand side, the map shows the top city destinations German tourists went during this time frame. On the list under the chart, you can see the busiest month was in 2014-11 month in Brussels in terms of German tourists.
We can add any indicator that we have on our system. For instance, I want to see Bednights in Vienna by German tourists. After I click save, it appears on the left hand side menu as an option. This is useful for destination management organization, which are usually reporting about their own destination and their competing cities, which can all be easily added to the list on the left. Each user can have a customized indicator list based on their specific needs.
You can see that the number of bednights in Vienna from Japan shows a similar pattern with the GDP growth of Japan. AS the economy gets better, the number of tourists from Japan to Vienna also increase and vice a versa.
Although the tourism domain heavily relies on complex decision-making, it is currently difficult to build decision support systems for this domain that would be capable of seamlessly integrating and visualising data from multiple data sources of tourism (and other) indicators. LD technologies, on the other hand, when adopted at large scale, greatly facilitate data integration at the syntactic and semantic level alike by providing a uniform data encoding format, as well as the possibility to clearly specify the meaning of the data and to establish links between various datasets.
LD technologies, when adopted at large scale, greatly facilitate data integration at the syntactic and semantic level alike by providing a uniform data encoding format, as well as the possibility to clearly specify the meaning of the data and to establish links between various datasets.
We had to make various changes to the TourMIS dataset before publishing it.
We also encountered licensing problems due to the heterogeneous origin of the TourMIS data set. Although TourMIS is open to anyone who registers to the system, the data comes from different sources and is financed by multiple organizations. Therefore, opening the entire TourMIS data set as Open Data for third parties is an issue which has not yet received a satisfactory answer yet.