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  • 1.
    Rooth, Anton
    Linköping University, Department of Computer and Information Science, Database and information techniques.
    Improving an open source geocoding service2018Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    There are many map providers on the market today. Anyone who wishes to use a licensed map-service in an application has to pay a license fee. This fee can become a big expense and affect the price that the end costumer has to pay.This thesis has investigated in how to set up and improve an open source geocoding service for it to measure against a licensed map-service. Geocoding is the technique of having an input address and returning a position which consists of a latitude and a longitude coordinate. The investigation has been done by implementing an open source solution as a proof of concept with the goal to answer the question to which extent is it feasible to develop an open source geocoding service to be as fast accurate and complete as a licensed map service.The open source solution has been developed in collaboration with TaxiCaller Nordic AB. In the implementation the Pelias project has been used as a geocoder together with map data from the datasets of OpenStreetMap and Who’s On First and Elasticsearch as the search engine. The work is based on functional, data and performance requirements set by TaxiCaller.The evaluation has shown that most of the requirements set for this work are achieved with the implemented open source geocoding service solution. Examples of these requirements are correctness of the search results and that the address, street, venue or intersection in the search results should be fully specified.The functional requirement to convert an intersection to coordinates is not achieved when the intersection can not be uniquely identified. The performance requirement to search for a venue is not. Also, the data requirement that the postal code in the search results should be fully specified is not achieved.Sometimes but not always a licensed map-service can provide better data.

  • 2.
    Rooth, Anton
    et al.
    Linköping University, Department of Computer and Information Science.
    Ericsson, Daniel
    Linköping University, Department of Computer and Information Science.
    Hammar, Mattias
    Linköping University, Department of Computer and Information Science.
    Log, Natanael
    Linköping University, Department of Computer and Information Science.
    Adolfsson, Oskar
    Linköping University, Department of Computer and Information Science.
    Bergman, Sara
    Linköping University, Department of Computer and Information Science.
    Öhberg, Tomas
    Linköping University, Department of Computer and Information Science.
    Agil utveckling av modul för hantering av XML-baserade kartor2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Rapporten behandlar ett kandidatprojekt som genomfördes av sju studenter på datavetenskapliga civilingenjörsutbildningar på Tekniska högskolan vid Linköpings universitet 2016. Projektet syftade till att skapa en modul, C3 Path Engine, för att hantera kartor till simuleringsverktygen C3Fire och C3Rescue som främst används av räddningstjänsten. Ett av kraven på C3 Path Engine var att kunna hantera kartor både från Open Street Map och kartor ritade för C3-programvarorna. Två andra krav var att kunna redigera vägdata på kartan och att kunna utföra sökningar av kortaste respektive snabbaste väg mellan två punkter. Gruppen arbetade agilt i tre iterationer med metoder från både Scrum och Extreme Programming för att utveckla modulen. Målet att skapa en modul som är enkel att integrera nåddes genom att ha väl utarbetad arkitektur innan programmeringen påbörjades och genom designmönstret Façade. De främsta erfarenheter som insamlades under arbetet var att kommunikation och planering är viktiga för att ett mjukvaruprojekt ska vara framgångsrikt. SEMAT Kernel Alpha State Cards användes under utvecklingen och var ett uppskattat verktyg. Kartor från Open Street Map är publicerade under öppen källkodslicens och visade sig vara väl uppdaterade och lämpliga att använda i projektet. Rapporten innehåller sju bilagor med individuella bidrag där samtliga medlemmar skrivit en egen fördjupning eller undersökning.

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