togo: a contextual tourist mobile guide
DESCRIPTION
We present TOGO, a general model and a limited prototype of a contextual tourist mobile guide dedicated TO the city of GOrizia. Our goal is twofold: first, we offer contextual views to the users, and, second, we provide them with a personal workspace in which they can also create new, personalized paths. In order to capture semantic interconnections among data, we use advanced data structures called zz-structures, a graph-centric system of conventions for data and computing, able to simply offer semantic modalities of navigation.TRANSCRIPT
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
TOGO: a Contextual Tourist Mobile Guide
Dattolo A., Pitassi E., Onza A., Urgolo A.
SASWEB Research Lab, Department of Mathematics and Computer ScienceUniversity of Udine, ITALY
ITIS 2012, Doleniske Toplice, SloveniaNovember 7-9, 2012
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
1 IntroductionChallenging IssuesRelated Work
2 TOGO: a framework and a prototypeThe TOGO architectureThe Contextual KnowledgeThe zz-structure instantiation flowThe zz-structure instantiationUse CasesNavigationAuthoring Personal Paths
3 Conclusions and Future WorkLooking beyond: Go!The App NowResearch Engine
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Introduction
Due to the wide diffusion of mobile systems (as tablet orsmartphone), the number of tourist mobile guides is rapidlyincreasing (Kenteris, 2011).A recent study on U.S. Android and iOS users revealed thatapps dominate mobile time spent accessing travel (95%),versus only 5% dedicated to mobile websites (Nielsen, 2012).
They offer detailed information, and interesting tours related,for example, to museums, cultural heritage, shopping,attractions, services.
They also share some drawbacks asi) the lack of customized and dedicated user workspaces;ii) a limited semantic navigation;iii) the lack of capability to create new tours and share them.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Challenging Issues
We identified five challenging aspects for an innovative mobileguide and concrete issues in the current systems:
Provide personalized content and views.
Enable user to author new tours.
Apply semantic relations.
Provide support to social aspects.
Provide contextual information and navigation.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Related Work
Current mobile guides of (also international) museums suffer fromsome limitations:
Musee du Louvre (http://www.louvre.fr/en): this app is richof information and multimedia contents, but it presentsnavigation issues, and emphasizes disorientation.MOMA (http://www.moma.org/explore/mobile/): althoughthis app helps the visitor with an audio support, it limits theuser navigation with rigid and predefined paths of visit.AccessSights (Krosche et al., 2004): subproject ofMobiDENK, this app assists tourists in a tour in theHerrenhausen Gardens, in Hannover (Germany); also for blindusers, it works only inside the park.GeoNotes (Espinoza et al., 2001): tourists can retrieve notesregarding their current location and participate in the creationof the information space, but presents a main weakness: thetrust of the information given by the community.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
TOGO: a framework and a prototype
The TOGO mobile guide:
offers contextual and semantic navigation on the data;introduces user personal workspaces and manages userprofiles;enables the users to create and share news paths.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The TOGO architecture I
Figure : TOGO architecture
The main components of our architecture, distributed amongserver and mobile client, are:
Model
Controller
View
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The TOGO architecture II
Model: it contains data and knowledge and a set ofmethods. The data is organized in two separated datasets,Knowledge Base and User Profiles. This data is aggregatedand structured by: (a) the Contextual Knowledge and (b) theUser Model.
Controller: this component mediates between the Model andthe View. It has been organized in terms of a multi-agentsystem, able to receive the user (and system) requests andmanage them in order to carry out the appropriate actions.
View: this component gives a graphical interface to theController and Model activities. View implements differentscreen panels, one for each type of content (e.g. personal userworkspace, specific items of the museum - rooms, plans,collections).
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The Contextual Knowledge I
The cultural heritage virtual tours, mainly based on mobileguide, suffer from a rigid navigation.
In order to overcoming this issue and provide new, advanced,and contextual navigation modalities, the TOGO navigationmodel is based on zz-structures (Nelson, 2004, Dattolo&Luccio, 2009).
Zz-structure
Zz-structure is an edge-colored multigraph, subject to thefollowing constraint: the degree of each node for a given color canassume only three possible values: 0, 1, or 2.For each color/label the multigraph presents or singletons, orlinear paths, or cycles.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The Contextual Knowledge II
Figure : Multiple starview
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The Contextual Knowledge III
The nodes (zz-cells) represent rooms and objects of theCoronini Museum
the colored (labeled) edges define semantic relations amongrooms and objects
from c1 we can reach all the semantically connectedinformation; they are identified by different colors and labels.
links connect the plans of different floors, the paintings,elements visited by a specific user (a personal path), thedifferent rooms of the museum, the furnishes, and thesilverware present in it.
zz-structure can be created in a flexible way: each dimensioncan contain one or more ranks and the logic mapping of ranksand dimensions can be interchangeably arranged.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The zz-structure instantiation flow
Figure : zz-structure instantiation
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The zz-structure instantiation
In our prototype the instantiation of the zz-structure containingour case of study is made up of the following steps:
the agent zzXMLOperator pre-loads the XML KnowledgeBase, organized in terms of XML file containing the ‘items’and ‘rooms’ details (data.xml), on the mobile client;
then zzXMLOperator dynamically defines the interconnections(zz-dim between items and rooms zz-cell, inquiring theXML documents containing:
the collections (collection.xml),the plans (plan.xml),the personalized paths (paths.xml),the predefined tours (tour.xml),the restauration (restauration.xml).
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Use Cases
The prototype TOGO is based on Flash technology, ActionScript language programming, and XML semi-structureddatabase.
We implement two use cases:
I NavigationII Authoring Path
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Navigating though ranks and dimension
Figure : Navigation scenario
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Authoring Personal Paths
Figure : authoring scenario Starting from her personalspace, each user cancreate a personal path(‘Crea percorso/Create apath’)
She chooses the‘nome/name’, and adds allthe items/rooms that sheprefers (using the ‘+’button)
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Conclusions
We presented TOGO, an innovative mobile guide which offerscontextual and semantic navigation on the data and userpersonal workspaces.
Currently, we are working on the extension of the tier-layer ofour framework in order to:
support user recommendation,harvest complex relationships among items,enhance social aspects.
We called the new app simply Go! (for Gorizia). We wouldlike to present now, for you, in first preview, just somefeatures and screenshots of it in next slides.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Looking beyond: Go!
Go! is the new version that uses HTML 5 and native codes for themobile systems.In this new version there are:
1781 interesting sites about the city of Gorizia
728 interesting elements, splitted in 4 special buildings:
Palazzo Coronini Cronberg MuseumGorizia’s CastleDe Grazia PalaceSanta Chiara Museum
The users have the possibility to give a rating to every interestingelement or site, or add them to the their personal paths.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
The App Now
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Research Engine I
A new feature developed for the system is the internal Researchengine, that works with a special adaptive semantic algorithmbased on 3 types of tags (primary, secondary and referential) andon synonyms.
The algorithm provides search results referring to a list of5581 tags and 3225 synonyms.
The order of the results changes depending on previousresearch carried out by the user: the selected elements withgreater frequency will have higher priority and will bedisplayed in the top of the results list.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Research Engine II
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Biblio I
Kenteris, M.; Gavalas, D.; Economou, D. Electronic mobileguides: a survey. Personal and Ubiquitous Computing 15(1),pages 97-111, Springer London, 2011.
Nielsen.com, “Apps Dominate Mobile Time Spent AccessingTravel in U.S.”, (29 Agosto 2012).http://blog.nielsen.com/nielsenwire/online_mobile/
apps-dominate-mobile-time-spent-accessing-travel-in-u-s/
Nelson, T. H. A cosmology for a different computer universe:data model mechanism, virtual machine and visualizationinfrastructure J. Digital Information 5(1), no. 298, 2004.
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Biblio II
Dattolo A., Luccio F. A formal description of ZigZagStructures. Workshop on New Forms of Xanalogical Storageand Function - HT 2009, pages 7-11, Turin, Italy, June 29-July1, 2009.
“Musee du Louvre”, Paris, The mobile application.http://www.louvre.fr/en. July, (2012).
Moma Mobile. The Museum of Modern Art, New York.http://www.moma.org/explore/mobile. July, (2012).
Krosche, J.; Baldzer, J.; Boll, S. mobiDENK - Mobile,Location-Aware Multimedia Support in Modern MonumentConservation, IEEE Multimedia, vol. 11, no. 1, (2004).
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Biblio III
Espinoza, F.; Persson, P.; Sandin, A.; H. Nystrm, Cacciatore,E.;Bylund, M. GeoNotes: Social and Navigational Aspects ofLocation-Based Information Systems, Conference on HumanFactors in Computing Systems, pp. 43-44, (2001).
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide
Outline Introduction TOGO: a framework and a prototype Conclusions and Future Work
Thank you for the attention.
http://www.cego.uniud.it
For contacts: [email protected]
Dattolo A., Pitassi E., Onza A., Urgolo A. TOGO: a Contextual Tourist Mobile Guide