The ultimate goal of image understanding is to transfer visual images into numerical or symbolic descriptions of the scene that are helpful for decision making. Knowing when, where, and in which direction a picture was taken, the task of geo-calibration makes it possible to use imagery to understand the world and how it changes in time. Current models for geo-calibration are mostly deterministic, which in many cases fails to model the inherent uncertainties when the image content is ambiguous. Furthermore, without a proper modeling of the uncertainty, subsequent processing can yield overly confident predictions. To address these limitations, we propose a probabilistic model for camera geo-calibration using deep neural networks. While our primary contribution is geo-calibration, we also show that learning to geo-calibrate a camera allows us to implicitly learn to understand the content of the scene.

在現今車載傳輸安全資訊中最重要的兩個評估效能參數 -- Latency和reliability，要兼顧到這兩個的效能在現今不可靠的無線連接中是很困難的工作。這主要的挑戰是來自於在網路連接層的廣播，使用了不可靠的傳輸，例如:當某點接受到一個訊息時並不會傳輸一個反饋的信息給來源端通知它已接受到此信息。在現今有許多的方法是利用多於的點去增加接受的可靠性，但這將會增加網路頻寬的負載。 在我們的論文中我們提出了一個新的傳輸安全資訊的方法，使用少數relay去完成快速的安全資訊傳輸，並且在相同時間內去保持高效能傳輸的可靠性。在這我們介紹了兩個relay的型式同時地去減少end-to-end 傳輸延遲時間和增加傳輸範圍可靠性。地理樹狀演算法是由樹演算法而來的，它可以減少不必要的relay和傳輸資訊碰撞的發生，而802.11p則是用在優先權比較高的點擁有比較小的重新傳輸延遲時間。 / Vehicular environments impose a set of new requirements on today’s wireless communication systems. Latency and reliability are very important means to disseminate safety information like time-sensitive emergency messages (EMs) in Vehicular Ad hoc Networks (VANETs). Providing low-latency, high-coverage and scalable multi-hop EM broadcast is a hard task in VANET with unreliable links. The major challenge comes from the fact that the link-layer broadcast uses unreliable transmissions, i.e., no positive feedback to acknowledge the reception of the message. Many existing works have used redundant relay nodes to enhance the reliability of broadcast packet reception. However they often involve more relays than it is necessary, which increases the network load and undermines the scalability of the protocol. Moreover, large latency is often incurred due to coarse protocol design. In this thesis, we propose a new EM broadcast scheme that uses a small number of relays to achieve fast multi-hop EM propagation, at the same time to maintain a high level of transmission reliability. Two types of relays are introduced to reduce latency and to enhance reliability simultaneously, so that low-latency, the desired reliability level and small overhead can be achieved at the same time. The inverse tree algorithm (ITA) is based on tree algorithm, the mechanism to select single relay distributive, which features an effective redundant relay suppressing mechanism and very small rebroadcast delay for high priority nodes. Simulation study shows that ITA and multi-channel achieves close to 100% reliability, while using a small number of relays with very low broadcast latency under a wide range of road traffic conditions.

Des charrettes de la civilisation ancienne au Véhicule Utilitaire Sportif (VUS) actuels, la dépendance de l'homme pour les véhicules reste incontournable. Les avancements rapides des infrastructures de transport aujourd'hui, couplé au désir de voyager de plus en plus rapidement, conduisent à de graves problèmes de transport: accidents, pollution et embouteillages. Afin de réduire ces problèmes et augmenter la capacité de l'infrastructure actuelle, plusieurs approches ont été proposées. Les résultats se présentent, d'une part, sous forme de panneau à message variable qui affiche la situation du trafic aux conducteurs sur la route ; d' autre part, sous forme de dos d'âne pour la prévention des accidents en réduisant la vitesse des conducteurs dans les zones urbaines ; et enfin sous forme de décisions gouvernementale permettant de lutter contre la pollution en interdisant, les jours de forte pollution, l'accès au centre-ville pour les véhicules avec des numéros immatriculés pair ou impair. A la fin du XXe siècle, des efforts considérables sont apparus pour introduire l'intelligence dans les systèmes de transport. Afin de s'adapter à la complexité du système de transport, cela constitue un des facteurs déterminants pour une action durable et plus efficace. Au début, les initiatives se sont limitées au niveau de la télésurveillance sur les incidents de la circulation à l'aide de caméras pour en informer les utilisateurs via des panneaux à messages. Peu après, avec l'avènement de la communication sans fil, le monde a ouvert ses portes en direction de la recherche sur la communication inter-véhiculaires. Plus précisément, en permettant aux véhicules de détecter et de communiquer automatiquement sur les incidents de trafic avec d'autres véhicules on peut atteindre une connaissance étendue sur la situation de la circulation locale autour du conducteur. C'est un facteur très important pour l'installation efficace du Système des Transports Intelligent (STI). A l'heure actuelle, le principal défi est d'exploiter et utiliser efficacement la communication entre les véhicules afin de réduire, sinon éliminer complètement, les problèmes précités: accidents - par le biais de la sécurité active ; la pollution et les embouteillages - grâce à la fluidité du trafic et en guidant les conducteurs des transports à emprunter des itinéraires qui permettent d'économiser la consommation d'énergie et réduire les émissions. Cette thèse présente un élément important qui réalise le déploiement d'une STI à grande échelle: la communication entre les véhicules sur la route. Ce manuscrit est consacré au développement d'un algorithme de diffusion "Multi-Hop Vehicular Broadcast"(MHVB), en utilisant la localisation de véhicules pour permettre la communication entre les véhicules.

No description available.

This paper summarises the results of using image processing technique to get information about the load of timber trucks before their arrival using digital images or geo tagged images. Once the images are captured and sent to sawmill by drivers from forest, we can predict their arrival time using geo tagged coordinates, count the number of (timber) logs piled up in a truck, identify their type and calculate their diameter. With this information we can schedule and prioritise the inflow and unloading of trucks in the light of production schedules and raw material stocks available at the sawmill yard. It is important to keep all the actors in a supply chain integrated coordinated, so that optimal working routines can be reached in the sawmill yard.

No description available.

In China¡¦s view, it is necessary to get crude oil and oil pipeline. Under Russia and China strategic partnership, China tries to obtain ¡§long term promises¡¨ and ¡§Pipeline Corporation¡¨ from Russia in oil diplomacy. There are several findings in this article: 1. International oil prices are important to China¡¦s oil diplomacy with Russia. 2.China¡¦s oil diplomacy with Russia includes geop olitcs and diversification. 3. Due to economic development, China needs long term oil supply contract. Putin did not prove this contract. 4. Because of navel and air forces are not strong enough, China develops oil pipeline to protect oil security.

Crowd-sourced crisis mapping is a relatively new phenomenon and platform that enables the collection and visualization of real-time crisis data submitted by users through social media tools and cellular technologies. Crisis maps are generally used by both state and nonstate actors for sense-making and as a reference point for action. The current crisis map visualizations only show the location documents such as reports or short messages have been generated from. Such a limited representation fails to immediately show important content, such as themes from a document and their changes over time. As a result, sense-making becomes time-consuming and cognitively demanding. I present a set of visualization tools: Geo-Temporal Tag Visualization (GTViz), Geo-Temporal Pies and Geo-SparkClouds that treat the tags on the crowd-sourced reports as spatio-temporal textual datasets and provide interaction tools to explore the content of the reports. I also demonstrate the value of such tools with case studies and a controlled user study.

Title: A study of how the Brick and Mortar business can utilize Location-based Marketing in Sweden. - Technologies, Strategies, Privacy & Integrity and Receptiveness from a consumer and expert perspective. Date: 2014-05-20 Level: Bachelor Thesis in Marketing Authors: Philip Lagström and Gustaf Stenlund. Supervisor: Klaus Solberg Søilen. Purpose: The purpose of this research is to create an understanding of what location-based marketing is and how brick and mortar businesses in Sweden can use this type of marketing, and how it affects sales and the customer experience. The objective is also to find out how consumers percept location-based marketing and possible privacy and integrity concerns. Theoretical framework: The theoretical framework begins with theory regarding Smartphone usage in Sweden and privacy & integrity concerns. The theory also discusses the brick and mortar business. Further, it discusses what kinds of techniques and methods that are used by location-based marketing today is, and how push and pull strategies can be used within location-based marketing. Method: The research is based on a combination of a qualitative and quantitative study. This was made to get the experts point of view and also the consumers’ perspective. The qualitative part consisted of three interviews with experts in the field of location-based marketing, mobile applications, Smartphone marketing and digital marketing. The quantitative part consisted of a survey with 357 participants Empirical framework: The empirical study consists of interviews and a survey. It begins with the interviews with the three experts; this part involves thoughts regarding location-based marketing within brick and mort, best method of LBM, consumer receptiveness, negative/positive aspects, privacy and integrity and future prospects for location-based marketing. This followed by the results from the quantitative survey with our 357 respondents; the survey gives a consumer point of view on important factors such as Smartphone use, consumer interest regarding LBM, receptiveness, privacy and integrity concerns and loyalty. Conclusion: The conclusion made in this dissertation is that location-based marketing is a great part of the digital marketing mix, and could potentially work well for Swedish brick and mortar businesses. It has potential to create increased value for consumers, which in turn can develop into a loyal customer base. The respondents of our survey are not concerned about their privacy and integrity. However, it could be a devastating blow for retailers if dealt with incorrectly.

Submitted by Biblioteca de Arquitetura (bibarq@ufba.br) on 2016-10-10T19:55:14Z No. of bitstreams: 1 Magno Araujo.pdf: 21073520 bytes, checksum: 7bcf42f30fb8ef762b76342f9f2cf5a8 (MD5) / Rejected by Edilene Costa (ec@ufba.br), reason: on 2016-10-10T21:14:35Z (GMT) / Submitted by Biblioteca de Arquitetura (bibarq@ufba.br) on 2016-10-10T21:20:58Z No. of bitstreams: 1 Magno Araujo.pdf: 21073520 bytes, checksum: 7bcf42f30fb8ef762b76342f9f2cf5a8 (MD5) / Approved for entry into archive by Edilene Costa (ec@ufba.br) on 2016-10-11T19:08:35Z (GMT) No. of bitstreams: 1 Magno Araujo.pdf: 21073520 bytes, checksum: 7bcf42f30fb8ef762b76342f9f2cf5a8 (MD5) / Made available in DSpace on 2016-10-11T19:08:35Z (GMT). No. of bitstreams: 1 Magno Araujo.pdf: 21073520 bytes, checksum: 7bcf42f30fb8ef762b76342f9f2cf5a8 (MD5) / A historiografia paraibana aponta no sentido de que a produção inicial do espaço, ao norte da capitania de Itamaracá, deveria ter ocorrido na desembocadura do Rio Paraíba, em ambiente de morfologia plana e baixa, de constituição areno-lamosa e desprovido de água potável. Em momento posterior, provavelmente por razões de ordem ambiental, o primeiro assentamento humano se estabeleceria a montante do estuário, em área diferente daquela inicialmente estabelecida nas determinações reais. O novo sítio se caracterizava por apresentar topografia elevada, pela existência de um porto com bom calado e ao abrigo dos ventos, pela presença de rochas calcárias e pela abundância de regatos e fontes de água potável. Essas singularidades do meio físico atendiam às necessidade imediatas para implantação de um núcleo populacional na época colonial, constituindo um bom "sítio" e em área de boa "situação" geográfica. O objetivo desta pesquisa é estudar as características do meio físico desse sítio, local onde foi fundada a cidade de Nossa Senhora das Neves, atual cidade de João Pessoa - PB. Para tanto, se utilizou o método analógico-dedutivo e como metodologia de pesquisa, levantamento bibliográfico e documental, elaboração de cartas, trabalho de campo e análise comparativa das informações geológicas. O estudo contribuiu para a compreensão da fisiologia do meio natural e das características geológicas, geomorfológicas e hidrológicas do antigo sítio onde foi fundada a cidade de Nossa Senhora das Neves. O entendimento da existência de uma falha geológica perpassando os limites entre a Cidade Alta e a Cidade Baixa explica as singularidades do sítio e responde pela grande quantidade de calcários aflorantes e fontes de água potável existentes nas encostas do morro. É no entorno desta elevação, com cota topográfica entre 16 e 18 metros, que se posicionam as seis principais fontes que abasteceram a cidade por cerca de 350 anos, que são: a Bica da Maria Feia, a Cacimba do Povo, a fonte dos Milagres, a fonte do Gravatá, a fonte de Tambiá e a fonte de Santo Antonio