Some Location Based Services (LBS) can automatically find geographic locations that are relevant to the everyday smartphone user. A relevant location, or place, is a location that is of some significance to a user, e.g. home, workplace, airports or stores. Knowledge of these places can be used to enhance a smartphone application. However, most approaches to finding places are coarse, and simply define a place with a circle or polygon representing a geographical area. Instead this paper explored the feasibility of defining a place by using the natural boundaries found in the information of a map. The developed algorithm calculated the center of a cluster of location points by adding biased weights to each point. A close proximity of the center point was then searched for certain types of map elements such as buildings or parks. Because of time restrictions, map images were used instead of the underlying data. The developed algorithm found the correct place in 78% of the 45 test cases. In 15% of the cases it could not find anything, mainly because the map did not contain sufficiently detailed information about buildings outside of cities. The remaining 7% were incorrect results, some of which might have been remedied by more detailed map information. Overall the suggested approach was viable when a user had been in a building, park, or other clearly defined place, and when there was sufficiently detailed map information. To further this research an algorithm that processes geographical data directly instead of using map images could be tested. It would avoid some of the problems created by having an image as a middle layer between data and algorithm. / Vissa tjänster baserade på användarens geografiska position kan automatiskt hitta områden som är relevanta för en smartphoneanvändare. En relevant plats är ett område som har någon betydelse för en användare, till exempel ett hem, en arbetsplats, flygplats eller butik. Information om dessa platser kan användas för att berika en smartphoneapplikation. De flesta ansatser till att hitta relevanta platser är mindre detaljerade, och definierar en plats med en cirkel eller polygon som beskriver ett geografiskt område. Den här uppsatsen utforskar istället om det är möjligt att definiera en plats genom att använda naturliga gränser som finns i informationen på en karta. Den utvecklade algoritmen beräknade mittpunkten av ett cluster av GPS-punkter genom att partiskt ge varje punkt en vikt. Den sökte sedan igenom ett område runt mittpunkten efter en viss typ av kartelement, till exempel byggnader eller parker. På grund av tidbegränsningar användes kartbilder istället för underliggande geografisk data. Den utvecklade algoritmen hittade rätt plats i 78% av de 45 testfallen. I 15% av fallen hittade den ingen plats, främst på grund av att kartan saknade information om byggnader utanför städer. De resterande 7% var inkorrekta resultat, varav vissa skulle kunna räddats om kartan innehöll information om byggnaderna i området. Generellt var den föreslagna strategin användbar främst när en användare hade varit i en byggnad, park eller annan tydligt avgränsad plats, och när kartan innehöll tillräckligt detaljerad information. För att fortsätta denna undersökning kan en algoritm som använder den underliggande geografiska datan istället för en kartbild utvecklas. Det skulle undvika vissa av problemen som skapas av att ha en bild som mellanlager mellan data och algoritm.

Au cours des dernières années, nous avons observé le développement de dispositifs connectéset nomades tels que les téléphones mobiles, tablettes ou même les ordinateurs portablespermettant aux gens d’utiliser dans leur quotidien des services géolocalisés qui sont personnalisésd’après leur position. Néanmoins, les services géolocalisés présentent des risques enterme de vie privée qui ne sont pas forcément perçus par les utilisateurs. Dans cette thèse,nous nous intéressons à comprendre les risques en terme de vie privée liés à la disséminationet collection de données de localisation. Dans ce but, les attaques par inférence que nousavons développé sont l’extraction des points d’intérêts, la prédiction de la prochaine localisationainsi que la désanonymisation de traces de mobilité, grâce à un modèle de mobilité quenous avons appelé les chaînes de Markov de mobilité. Ensuite, nous avons établi un classementdes attaques d’inférence dans le contexte de la géolocalisation se basant sur les objectifsde l’adversaire. De plus, nous avons évalué l’impact de certaines mesures d’assainissement àprémunir l’efficacité de certaines attaques par inférence. En fin nous avons élaboré une plateformeappelé GEoPrivacy Enhanced TOolkit (GEPETO) qui permet de tester les attaques parinférences développées. / In recent years, we have observed the development of connected and nomad devices suchas smartphones, tablets or even laptops allowing individuals to use location-based services(LBSs), which personalize the service they offer according to the positions of users, on a dailybasis. Nonetheless, LBSs raise serious privacy issues, which are often not perceived by the endusers. In this thesis, we are interested in the understanding of the privacy risks related to thedissemination and collection of location data. To address this issue, we developed inferenceattacks such as the extraction of points of interest (POI) and their semantics, the predictionof the next location as well as the de-anonymization of mobility traces, based on a mobilitymodel that we have coined as mobility Markov chain. Afterwards, we proposed a classificationof inference attacks in the context of location data based on the objectives of the adversary.In addition, we evaluated the effectiveness of some sanitization measures in limiting the efficiencyof inference attacks. Finally, we have developed a generic platform called GEPETO (forGEoPrivacy Enhancing Toolkit) that can be used to test the developed inference attacks

De nos jours, les services Web sont très utilisés notamment par les entreprises pour rendre accessibles leurs métiers, leurs données et leurs savoir-faire via le Web. L'émergence des services Web a permis aux applications d'être présentées comme un ensemble de services métiers bien structurés et correctement décrits, plutôt que comme un ensemble d'objets et de méthodes. La composition automatique de services est une tâche complexe mais qui rend les services interopérables, ainsi leur interaction permet d’offrir une valeur ajoutée dans le traitement des requêtes des utilisateurs en prenant en compte des critères fonctionnels et non fonctionnels de la qualité de service. Dans ce travail de thèse, nous nous intéressons plus précisément aux services à base de localisation (LBS) qui permettent d'intégrer des informations géographiques, et de fournir des informations accessibles depuis des appareils mobiles via, les réseaux mobiles en faisant usage des positions géographiques de ces appareils. L'objectif de ce travail est de proposer une approche orientée modèles pour spécifier, valider et mettre en œuvre des processus de composition automatique de services à des fins de sécurité routière dans les transports. Cette approche est basée sur deux outils formels à savoir les Réseaux de Petri (RdP) et l'algèbre (max,+). Pour cela, nous préconisons l'utilisation des workflow patterns dans la composition, où chaque pattern est traduit par un modèle RdP et ensuite par une équation mathématique dans l'algèbre (max,+). Les modèles formels développés ont conduits, d'une part, à la description graphique et analytique des processus considérés, et d'autre part, à l'évaluation et la vérification quantitatives et qualitatives de ces processus. Une plateforme, appelée TransportML, pour la collaboration et l'interopérabilité de services à base de positionnement a été implémentée. Les résultats obtenus par la simulation des modèles formels sont comparés à ceux issus des simulations du fonctionnement de la plateforme et des expérimentations sur le terrain.Cette thèse est effectuée dans le cadre des projets Européens FP7 ASSET (2008-2011) et TeleFOT (2008-2012). / Web services are widely used by organizations to share their knowledge over the network and facilitate business-to-business collaboration. The emergence of Web services enabled applications to be presented as a set of business services well structured and correctly described. However, combining Web services and making them interoperable, to satisfy user requests taking into account functional and non-functional quality criteria, is a complex process. In this work, we focus specifically on location-based services (LBS) that integrate geographic information and provide information reachable from mobile devices, through wireless network by making use of the geographical positions of the devices. The aim of this work is to develop a model driven approach to specify, validate and implement service composition process in an automatic fashion for road security. This approach is based on two formal tools namely Petri nets (PN) and (max, +) algebra used to model, to verify and to evaluate the performance of service composition process. Workflow patterns are used to represent service composition processes. The behavior of each pattern is modeled by a PN model and then by a (max,+) state equation. The developed formal models allow the graphical and analytical description of the considered processes. Also, these models enable to evaluate some quantitative and qualitative properties of the considered processes. A platform, called TransportML, has been developed for collaboration and interoperability of different LBS. The obtained simulation results from the formal models are compared, on one hand, to those obtained from trials of the platform, and on the other hand, to those obtained from the real experimentations on the field.This work is a part of the FP7 European projects ASSET (2008-2011) and TeleFOT (2008-2012).

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智慧型手機市場近年來成長迅速，台灣智慧型手機的銷售在2011年的第四季已經超越了功能型手機，成為市場主力。而這波成長帶動了另外一個令人興奮的市場，就是行動應用軟體市集。因為智慧型手機提供良好的軟體開發平台以及軟體拆帳模式，讓一些小型軟體公司以及一些個人軟體開發者願意在上面開發軟體，並且有機會從中獲取利益。 因此，本研究想要了解行動應用軟體是用什麼方式獲利？找出可能的獲利模式，分析影響獲利模式的因素有那些？並且探討各類型應用軟體最常使用的獲利模式為何？ 本研究主要分析手機作業系統平台上官方的軟體市集，收集各類型軟體的前十名，分析其獲利模式。並且歸納出影響獲利模式的因素。根據本研究所得到的結論，行動應用軟體的獲利模式可以分為單次付費下載、軟體內購買、廣告、付費訂閱、平台整合、適地性服務以及行銷等七種模式。而影響這些獲利模式的因素可以分為平台、軟體類型、競爭者的獲利模式、地區以及技術。 最後，期望透過本研究，讓欲進入行動應用軟體的個人開發者或者軟體公司能夠找到合適的獲利方式。

3G 行動網路的發展和智慧型手機銷售量的大幅成長之助力下,使得全球適地性服務進入多元化的發展階段。而處於萌芽期的台灣適地性服務市場,近年來,隨著傳統語音服務業務的飽和,電信商紛紛希望藉由提供行動加值服務開創新的商機,於是行動加值服務中的適地性服務成了新的發展契機。 本研究認為適地性服務亦屬於服務的一類,但與一般實體服務業、線上購物的服務類型有所差異,故選擇以消費者直接接觸的電信商提供之適地性服務軟體 為研究對象,探討服務品質、顧客滿意度、顧客忠誠度的影響及其關係。以中華電信為研究對象,針對曾經參與適地性服務軟體開發的人員進行深度訪談,並根據質性研究的結果設計量化問卷及建立假設。本研究將問卷連結張貼於電子佈告欄系統的相關討論區,共取得 253 份有效問卷,以 SPSS19.0 軟體進行資料統計分析,驗證假設並提出研究發現與結論建議。 本研究得到以下的主要結論: 一、消費者在服務品質之感受程度,與電信商的關鍵資源和關鍵流程有關 二、服務品質對於顧客滿意度具有顯著影響,且不同要項之影響效果不同 三、服務品質對於顧客忠誠度具有顯著影響,且不同要項之影響效果不同 四、顧客滿意度對於顧客忠誠度具有顯著影響,且不同要項之影響效果不同 五、服務品質、顧客滿意度對於顧客忠誠度具有顯著影響,且顧客滿意度的影響 效果較高 / Recently, the development of 3G mobile networks and the huge growth of smartphone, Location-based service has diverse application. In Taiwan, with the saturation of traditional voice service, oprators hope to find new opportuneities by providing mobile value-added service so Location-based service in the mobile value-added service has become a new direction of development. This study is to investigate the relationship among the service quality, customer satisfaction and customer loyalty of Location-based services providing from oprators. Chunghwa Telecom is the main case for this study. This study obtains information by using both qualitative and quantitative research methods: in-depth interview and online survey. In the part of qualitative interview, interviewees are those participants who have been involved in the development of Location-based service in Chunghwa Telecom. As for the part of online survey, this study uses SPSS 19.0 software to analyze 253 valid questionnaires from PTT, the largest bulletin board system in Taiwan. After analyzing, this study comes to the following conclusions: 1. The key resources and key processes of the oprators affect the feelings of the consumers' service quality. 2. A significant relationship exisits between service quality and customer satisfaction, and different items have the different degree of influence. 3. A significant relationship exisits between service quality and customer loyalty, and different items have the different degree of influence. 4. A significant relationship exisits between customer satisfaction and customer loyalty, and different items have the different degree of influence. 5. A significant relationship exisits among service quality, customer satisfaction and customer loyalty, and customer satisfaction have a higher degree of influence on customer loyalty than service quality.

Made available in DSpace on 2016-08-17T14:53:00Z (GMT). No. of bitstreams: 1 Erich Farias Monteiro.pdf: 1651070 bytes, checksum: 78b0c023947fd323c362d0dc88c2ac6d (MD5) Previous issue date: 2005-10-03 / FUNDAÇÃO SOUSÂNDRADE DE APOIO AO DESENVOLVIMENTO DA UFMA / This work presents the actual stage for the mobile objects location and for the development of location based applications or services (LBS). We make a review of available system architectures and functional requirements to the development of location based applications. Also we suggest an architecture to this class of applications that encapsulate the location information management that is completely reusable. To implement this architecture we describe the implementation of a reusable framework to the location information management, that makes available functionalities to the efficient management of mobile objects location information, that is evaluated trough the development of an location based application to track mobiles objects in an historical site of São Luis city the capital of Maranhão. / Apresenta-se o estado atual das tecnologias para a localização de objetos móveis e para o desenvolvimento de sistemas baseados em localização (LBS). Realiza-se uma revisão das arquiteturas e dos requisitos funcionais para a construção de aplicações baseadas em localização e propõe-se uma arquitetura para essas aplicações onde a gerência da informação de localização está desacoplada e pode ser facilmente reutilizada, levando à proposta e implementação de um framework reutilizável para a gerência da informação de localização, que disponibiliza funcionalidades para a gestão eficiente da localização dos objetos móveis. Finalmente, avalia-se a utilização do framework proposto através do desenvolvimento de uma aplicação LBS para o rastreamento dos usuários que estiverem transitando na região do centro histórico da cidade de São Luís, disponibilizando recursos de rastreamento, determinação de proximidade e consultas de rotas percorridas pelo usuário.

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本內容為手機社群平台介面設計創作論述。PostHere 是一個讓使用者在智慧型手機上分享和接收情境內容的社群平台。使用者根據所在的情境，產製出一則則多媒體數位故事，並利用全球定位系統（GPS) 與數位羅盤技術，將內容留在空間中，共同建立地點資料庫。其他使用者便可從不同地點的資料庫中讀取內容，並利用擴增實境、數位地圖或街景重新建構的情境觀看內容，有如在真實空間中覆蓋一層數位故事空間。平台使用了社群機制進行內容排序和篩選，並刺激使用者更踴躍分享內容。 本論述探討了關於情境內容、社群服務和使用者介面與經驗設計的文獻，並進行個案分析，作為介面設計之基礎。設計的過程中也咨詢了介面設計領域專業人員的意見。 PostHere的主要目標族群為21至35歲的社青，有四個主要功能。使用者可創作情境故事留在特定地理位置上、閱讀其他使用者在目前位置上留下的故事、搜尋其他地點的故事、以及與有興趣的使用者聯結。本社群平台將先鼓勵使用者分享微旅遊紀錄，作為內容範例。 / This paper presents the prototype design of PostHere, a mobile social networking platform that will enable users to share and receive context aware content through an application on the smartphone. Digital stories in multimedia forms created by the mass users in relation to their spatial and temporal context are “planted” and left on a location using Global Positional System (GPS) and compass technology. These stories are stored in a location database for other users to retrieve and view in recreated context through augmented reality, world map or street view, like over layering a digital space on top of the physical space. Social mechanisms are used to sort out and filter content, while motivating users to share content actively. Literature review on context aware content, social networking and user experience design, together with case study on current mobile social networking app act as the basis of the development. Professionals from the app development field were consulted throughout the course of the user interface and user experience design. The final prototype has four main functions, targeted at urban young adult ranging from the age of 21 to 35. User may create and leave stories on a geographical spot, explore stories at their current location, search for interesting stories shared by others and connect with users they are interested in. Micro- travel log is chosen as the main content to help build up content paradigm. The prototype received positive feedback from test participants in Taiwan and will be ready for development into an actual product.