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Semantic Ubiquitous Services (SUBI)

Timespan: Dec 2009 - Sept 2012

Project Description

The general research goal of the SUBI project is to support people in real-world tasks at each stage from 1) planning agendas through 2) mobile use on the road to 3) reminiscing about the experience afterwards. Our primary focus is on culture: 1) selecting and attending cultural events such as exhibitions and musical performances as well as 2) selecting and visiting points of interest such as statues, historic sites and museums. However, to widen the scope acute healthcare as well as longer term health promotion agendas are also considered.

The project aims at immediate real world relevance by working with actual stakeholder data and prototyping the system in real world scenarios. A major showcase of the project results will be Turku -- European Capital of Culture 2011. Other material comes from some 30 content producers, including museums, public libraries, event information aggregators, healthcare officials, city officials and copyleft content providers. At the start of the project, this knowledge base already contains some 85 million entities and 700 million triples of information. Of these, some 20 million entities have coordinate information.

The major components of the system visible to the user are as follows:

  1. A web interface for searching for interesting events and places of interest. This will be used both in specifying event/POI watches as well as trip planning.
  2. A mobile web interface to be used on the road that highlights nearby events and places of interest according to trip planning and interest profile
  3. A web interface for reminiscing about and sharing the trip afterwards

The project bases partly on the results of the National Semantic Web Ontology Project in Finland (FinnONTO) and the EU FP7 project SmartMuseum. Particularly, the technical solution bases on the Semantic Web 2.0 portal CultureSampo.

Research Questions

  • Using knowledge from the Semantic Web to support real-life tasks
  • Discovering the interesting relations between Semantic Web content and places and events
  • The usefulness and particular questions of integrating to each stage of the tasks
  • Bettering state of the art in event watches by making use of semantic information
  • Semantic integration of large geospatial datasets
  • Combining statistical profile information with formal intent-based recommendation, and migrating information between the two (I'm going to Turku next weekend, give me an interesting agenda vs. I'm interested in all death metal concerts taking place at a reasonable distance from my living place
  • Intent-based search of events and places of interest
  • Generating optimal search constraints by matching richly semantically annotated intentions to richly annotated yet heterogeneous semantic data
  • Mapping out and analyzing the relations between different kinds of profile information: interests, goals, contextual constraints, abilities/disabilities and social environment
  • Content-spanning collaborative filtering (from library loan information to event recommendations)
  • Serendipidously expanding a user's field of interest using social and interest profiles
  • Data-mining algorithms for migrating information from visit logs to semantic profiles
  • Information extraction algorithms for discovering formal semantic annotations from event and POI text
  • Presentation functionality ("Give me a presentation on everything related to Akseli Gallen-Kallela")
  • Dynamic real-world routing based on contextual and interest information
  • Content recommendation between portals

Partnering Organizations and Funding

The consortium behind the project includes 18 public organizations and companies funding the research. The participants represent a wide area of functions of the society including museums, libraries, business, health organizations, government and media. The main funding organization is the Finnish Funding Agency for Tecnology and Innovation Tekes where the projects is part of the Tekes Ubicom programme.

Contact Persons

Researcher Eetu Mäkelä
Professor Eero Hyvönen

Publications

2011

Eetu Mäkelä, Aleksi Lindblad, Jari Väätäinen, Rami Alatalo, Osma Suominen and Eero Hyvönen: Discovering Places of Interest through Direct and Indirect Associations in Heterogeneous Sources -- The TravelSampo System. Terra Cognita 2011: Foundations, Technologies and Applications of the Geospatial Web, CEUR Workshop Proceedings, Vol-798, 2011. bib pdf
Linked data related to places has a potential to offer a vastly superior collection of information to base search and recommendation functionality on in eTourism visit planning as well as location-aware mobile applications. Particularly, through linked data, besided places interesting in themselves, it is possible to discover places interesting only through association, such as being the venue for a concert by an artist with an interesting genre. However, in order to harness this collective data source, challenges relating to data heterogeneity, quality, scale, and indexing and querying complexity must be resolved. In this paper, the TravelSampo visit planning and mobile application is presented, which tackles these issues. Using the system, queries describing both simple and complex interests can be run over some 17 million places of interest from over 20 vastly heterogeneous sources.
A. Thalhammer, T. Ermilov, K. Nyberg, A Santoso and J. Domingue: MovieGoer - Semantic Social Recommendations and Personalized Location-based Offers. The 10th International Semantic Web Conference (ISWC 2011), poster papers, Bonn, Germany, Oct, 2011. bib pdf
Tuukka Ruotsalo, Krister Haav, Antony Stoyanov, Sylvain Rochee, Elena Fanid, Romina Deliaic, Eetu Mäkelä, Tomi Kauppinen and Eero Hyvönen: Context-aware Information Filtering on the Web of Data: The SMARTMUSEUM system. October, 2011. bib
Semantic and context knowledge have been envisioned as an appropriate solution to deal with the information overload in mobile Web information access. Semantic Web technologies provide a solid base for standard representation of Web data and have been successfully used to support information retrieval and filtering, but few have explored their full potential in context-aware mobile scenarios, where information is connected to their physical counterparts in the real world and personalized for users. We present the SMARTMUSEUM system, a mobile tour guide to support information needs of tourists in on-site, context-aware access to cultural heritage. The SMARTMUSEUM system utilizes Semantic Web languages as the data representation format, makes use of ontologies to map content descriptions and sensor inputs to user profiles and to background knowledge that is consumed by a novel information filtering framework. The system has empirically proven information filtering performance in laboratory experiments and in real world user trials.
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