Zugl.: Stuttgart, Univ., Diss., 2009

<p>Det finns flera fördelar med robotiserad bågsvetsning jämfört med manuell bågsvetsning. När det gäller produktivitet och repeterbarhet är robot överlägsen människa, vilket gör att produkterna håller jämnare kvalitet. I slutet av 80-talet började offline-programmering att tillämpas. Att programmera en robot offline innebär att utföra programmeringen med dator utan direkt tillgång till roboten. Genom simulering visualiseras ett robotprogram i en grafisk modell av den fysiska robotcellen utan att den fysiska roboten behöver tas ur produktion. För att systemet för offline-programmering (OLP) ska vara effektivt, måste dess modellers kinematik överensstämma med dess fysiska motsvarigheter. En virtuell modell av en cell skiljer sig dock alltid något från verkligheten. Därför krävs kalibrering När simuleringsprogrammet är färdigt och kalibreringen är utförd, ska programmet översättas till ett för roboten specifikt programspråk. Detta görs genom en så kallad translator.</p><p>Denna rapport har skrivits på uppdrag av Delfoi. Delfoi har i flera år använt sig av DELMIA IGRIP för offline-programmering av bågsvetsningsrobotar. DELMIA har nu gett ut en ny generation program i den gemensamma plattformen V5. Plattformen innehåller bland annat DELMIA V5 Robotics och CATIA V5. Området för bågsvetsning har varit relativt outforskat. Därför vill företaget undersöka hur långt V5 Robotics har utvecklats inom detta område. Syftet är att undersöka om utvecklingen av V5 Robotics kommit tillräckligt långt för att kunna säljas till kund för offline-programmering av bågsvetsning.</p><p>Arbetet påbörjades genom att kartlägga den arbetsmetodik som Delfoi använder sig av vid bågsvetsning i IGRIP. Detta har skett i programvaran UltraArc, som innehåller IGRIP’s applikation för bågsvetsning. Dessutom gjordes en kartläggning av användandet av AMP, Arc weld Macro Programming, vid offline-programmering av bågsvetsning. Nästa del var att ta fram en metodik för bågsvetsning i V5 Robotics. De båda programmen och dess metodik har sedan jämförts, för att ta reda på om V5 Robotics är tillräckligt utvecklat för att migrera från IGRIP till V5 Robotics. Demonstrationer av arbetssättet i V5 Robotics har genomförts på Delfoi samt hos en av Delfois kunder, BT Industries i Mjölby.</p><p>Författarnas slutsats är att V5 Robotics är redo att användas för OLP av bågsvetsning. För de företag som använder sig av CATIA V5 finns det stora fördelar med att starta migrationen från IGRIP till V5 Robotics. Metodiken mellan de båda mjukvarorna har stora likheter, men vissa delar har utvecklats till det bättre i V5 Robotics. Dock kan den nya programvaran behöva testas i verkliga projekt för att säkerställa att hela programmeringsprocessen fungerar tillfredsställande innan bytet genomförs.</p> / <p>There are several advantages in robotic arc welding, compared to manual arc welding. When it comes to productivity and repeatability, robot is superior to man, which generates more even quality in products. In the end of the 1980’s, offline programming was put into practice. To program a robot offline means to perform the programming on a computer with no direct access to the robot. Through simulation, the robot program is visualized as a graphic model of the actual workcell, without having to take the actual robot out of production. For the offline programming system (OLP) to be efficient, the kinematics of the models need to correspond to its physical counterpart. A virtual model is always slightly different from the reality. That is why calibration is necessary. When the simulation program is complete and the calibration is done, the program needs to be translated to the language of the target robot. This is done through a post processor.</p><p>This thesis was written as an assignment from the company Delfoi. Delfoi has been using DELMIA IGRIP for offline programming of robotic arc welding for several years. DELMIA now has released a new generation of programs in the common platform V5. The platform includes for example DELMIA V5 Robotics and CATIA V5. The area of arc welding has been relatively unexplored. That is why the company wants to investigate how far V5 Robotics has developed in this area. The purpose is to investigate if the development of V5 Robotics has come far enough for V5 Robotics to be taken to customers for OLP of arc welding.</p><p>The work was begun by surveying the methodology used by Delfoi in arc welding in IGRIP. This has been done in the software UltraArc, which consists of the arc welding application from IGRIP. There was also a surveillance of the application of AMP, Arc weld Macro Programming, in offline programming of arc welding. The next step was to evolve a methodology for arc welding in V5 Robotics. The two softwares and their methodologies were then compared to find out whether or not V5 is enough developed for migration from IGRIP to V5 Robotics. Demonstrations of the method of working in V5 Robotics were held on Delfoi and on BT Industries in Mjölby, which is one of Deloi’s clients.</p><p>The conclusion of the writers is that V5 Robotics is ready to be used in OLP of arc welding. For companies using CATIA V5, there are great advantages in migrating from IGRIP to V5 Robotics. The methodoldgies of the softwares show great similarities, but some parts have been developed to the better in V5 Robotics. Though, the new software needs to be tested in real projects to assure that the entire process of programming functions satisfying before the change is completed.</p>

abstract: Detecting anatomical structures, such as the carina, the pulmonary trunk and the aortic arch, is an important step in designing a CAD system of detection Pulmonary Embolism. The presented CAD system gets rid of the high-level prior defined knowledge to become a system which can easily extend to detect other anatomic structures. The system is based on a machine learning algorithm --- AdaBoost and a general feature --- Haar. This study emphasizes on off-line and on-line AdaBoost learning. And in on-line AdaBoost, the thesis further deals with extremely imbalanced condition. The thesis first reviews several knowledge-based detection methods, which are relied on human being's understanding of the relationship between anatomic structures. Then the thesis introduces a classic off-line AdaBoost learning. The thesis applies different cascading scheme, namely multi-exit cascading scheme. The comparison between the two methods will be provided and discussed. Both of the off-line AdaBoost methods have problems in memory usage and time consuming. Off-line AdaBoost methods need to store all the training samples and the dataset need to be set before training. The dataset cannot be enlarged dynamically. Different training dataset requires retraining the whole process. The retraining is very time consuming and even not realistic. To deal with the shortcomings of off-line learning, the study exploited on-line AdaBoost learning approach. The thesis proposed a novel pool based on-line method with Kalman filters and histogram to better represent the distribution of the samples' weight. Analysis of the performance, the stability and the computational complexity will be provided in the thesis. Furthermore, the original on-line AdaBoost performs badly in imbalanced conditions, which occur frequently in medical image processing. In image dataset, positive samples are limited and negative samples are countless. A novel Self-Adaptive Asymmetric On-line Boosting method is presented. The method utilized a new asymmetric loss criterion with self-adaptability according to the ratio of exposed positive and negative samples and it has an advanced rule to update sample's importance weight taking account of both classification result and sample's label. Compared to traditional on-line AdaBoost Learning method, the new method can achieve far more accuracy in imbalanced conditions. / Dissertation/Thesis / M.S. Computing Studies 2011

This diploma thesis treats of affiliate marketing in the Czech Republic and is divided up into two parts.The first, the theoretical one, is about explaining of affiliate marketing in general, historical milestones of affiliate marketing, affiliate networks, affiliate programs, but also about online and offline marketing and other affiliate marketing related terms. The own part of work includes a survey results researching awareness of affiliate marketing among respondents and their perceiving of online advertising, then SWOT matrixs identifying of strenghts, weaknesses, opportunities and threats of affiliate marketing as for merchants as for partners. At least but not last there are explored affiliate softwares for smaller merchants and also costs of affiliate marketing in the first year and consequently reviewed and eventually selected the best possible option for czech market.

I dagsläget saknas ett effektivt sätt att ute i fält kunna mäta in sträckor och tillhörande kartobjekt vid planering av nybyggnation av vägar. Skogsbolagen önskar att kunna göra detta med en mobil enhet med eller utan internetuppkoppling med hjälp av ett geografiskt informationssystems-ramverk med öppen källkod. Därför har vi utfört en fallstudie. Det vi behövde ha svar på var vilka krav som ställts på en sådan lösning. Dessa krav fördes fram genom en intervju med en person hos vår samarbetspartner som hade haft kontakt med ett skogsbolag. Vi identifierade åtta ramverk varav fem återstod efter sållningen. Sållningen utfördes genom att avfärda ramverk som ej uppfyllde de huvudkrav framförda genom intervjun. Dessa fem ramverk analyserades genom att ta fram för- och nackdelar baserat på hur väl dessa ramverk uppfyllde de jämförelsekriterier vi tagit fram. Jämförelsekriterierna baserades på kraven vi fick fram genom intervjun, samt ytterligare kriterier som ansågs vara viktiga vid arbete med öppna källkods-lösningar. Som t.ex. kvalitén på ramverkets dokumentation, när ramverket senast uppdaterades, kostnad mm. Det ramverk som vi slutligen kunde rekommendera var “Mapbox”. Detta ramverk hade inte den högsta kravtäckningen av de kraven framförda genom intervjun. Dock beslutade vi att det var det lämpligaste valet då sett till de övriga kriterierna gällande öppna källkods-lösningar så hade Mapbox bäst förutsättningar. / Today, there’s no effective way for field data collection and its associated map objects when planning construction of new roads. The forest industry wishes to be able to do this with a mobile device with or without an internet connection, with the help of an open-source geographical information system-framework. We have therefore conducted a case study. We needed to know what the requirements were. The requirements needed was forwarded during an interview with one person from our partner organization that had contact with a forest company. We identified eight frameworks, whereas five were left after the screening. The screening was done by discarding the frameworks that didn’t fulfill the main requirements that we got from the interview. The five remaining frameworks were analyzed by identifying the pros and cons that were based on how well the frameworks fulfilled the evaluation criterias. The evaluation criterias were based on the requirements we got from the interview as well as the additional criterias that we considered important when working with open-source frameworks. E.g. the quality of the documentation, when the framework was last updated, the eventual cost etc. The framework we finally recommended was “Mapbox”. This framework did not have the highest coverage of requirements. However we decided that it was the most well-suited choice based on the open-source criteria’s we put forward.

Submitted by Automação e Estatística (sst@bczm.ufrn.br) on 2018-07-02T21:38:08Z No. of bitstreams: 1 DominiqueDosSantosTiago_DISSERT.pdf: 3876931 bytes, checksum: c8bf52241dd0815d350eca4a2b642532 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-07-09T11:50:39Z (GMT) No. of bitstreams: 1 DominiqueDosSantosTiago_DISSERT.pdf: 3876931 bytes, checksum: c8bf52241dd0815d350eca4a2b642532 (MD5) / Made available in DSpace on 2018-07-09T11:50:39Z (GMT). No. of bitstreams: 1 DominiqueDosSantosTiago_DISSERT.pdf: 3876931 bytes, checksum: c8bf52241dd0815d350eca4a2b642532 (MD5) Previous issue date: 2018-02-28 / A convivência com os animais de companhia em nossas casas, famílias, entre nossos amigos, em lugares públicos, em eventos privados, no mundo online/offline, pode estar se moldando e sendo moldada pelas interações e rituais convencionais dos humanos. Além da preocupação com o bem-estar do animal, condenando a “desumanidade” em relação aos maus-tratos, a relação de afeto, de empatia, faz com que o animal como ator possa ser construído e movimentar-se em sociedade, possui agência animal, como sugere Osório (2016). Na medida em que se torna ator social e passa a ter possibilidade de acesso a direitos sociais ou, pelo menos, possibilidade de acesso online, produz redes complexas de relacionamentos e estratégias de construção de subjetividades complexas entre humanos e não humanos. / Living with companion species in our homes, families, among our friends, in public places, in private events, in the online/offline world, may be shaping and being shaped by the conventional interactions and rituals of humans. In addition to concern for animal welfare, condemning "inhumanity" in relation to ill-treatment, a relationship of affection, empathy, makes the animal as an actor intended to be built and move in society, has animal agency, as Osório suggests (2016). Insofar as it becomes a social actor, and it passes the possibility of access to social rights or, at least, possibility of online access, it produces complex networks of relationships and structures of construction of complex subjectivities between humans and nonhumans.

Background: The development of the O2O market in China has been increasingly growing and will remain a steady growth in 2017 (iiMedia Research, 2016), but it is still an ambiguous phenomenon in the academic world and lack of relevant research, especially the influential factors to customer experience in the O2O business model. Research question: What factors affect customer experience in China in the context of O2O business? Purpose: The primary objective of this paper is to examine the influential factors of the customer experience in the context of O2O context, especially to the Chinese customers in the online travel industry. The purpose is to contribute to theoretical development on this topic. Method: The research is a quantitative study with deductive reasoning which was carried out by the survey. The data collection was conducted through online questionnaires. Conclusion: The findings of this study show that all five variables (reference group influence, perceived ease-of-use, sensory experience, brand association and spatial accessibility) are positively influential to Chinese customer experience in the context of O2O business. Perceived ease-of-use and Sensory experience are the most dominant influential factors followed by the Reference group influence and Spatial accessibility. The Brand association impacts customer O2O experience least.

Technical advances have made it possible for small enterprises to go international already at inception since the internet has made the internationalization process cost-effective. With the existence of the offline and online arena, the companies have to consider how they allocate their resources between these fields; not allocating resources to offline methods can save money, but could reduce adaptation to the new market which can lead to reduced firm performance. However, overspending on offline methods can be costly and could jeopardize the financial stability of the company. Although this is noted by previous research, little is still known about how companies balance the resources between online and offline presence. Especially when it comes to e-commerce companies and how the benefits of online and offline presence are balanced by this type of firms in their expansion into foreign markets. This is also what is meant to be explored in this paper. The data has been collected through semi-structured interviews with seven Swedish e-commerce companies that have internationalized their operations in an active way. The results show that online and offline benefits can be divided into four categories, namely local knowledge, local connection, promotion and services. These categories could in turn bring benefits to the company that are either substitutable, non-substitutable or complementary. The findings indicate that firms could balance their resources in online and offline presence in order to gain benefits that cannot be found in the counterparts of each presence. This could be of interest for entrepreneurs and managers that plan to engage in internationalization within e-commerce.

The positioning performance with the LVC (Last Visited Cells) report is evaluated and compared with extended reports with signal strength data. The LVC report contains cell identities and time spent in the last cells listened to. This is an off-line data source and the purpose of the positioning is to extract information about users’ whereabouts, which for example can be used to optimize the cellular network or vehicular traffic. The positioning evaluation is done in Matlab with a log-distance model, a fingerprinting algorithm, and a new LVC specific algorithm. A particle filter and a particle smoother is used to process simulated LVC reports and extended reports with different amount of information. The results are compared and evaluated with regard to the positioning accuracy and the information density of the reports.

Syftet med denna studie var att undersöka hur lärare på fritidshem upplever att sociala medier påverkar elevers relationer, vilka för- och nackdelar det finns med dessa, samt hur fritidslärare ser på sin egen samt vårdnadshavarnas roll i elevernas sociala medie-användande. Insamlingen av empiriskt material har skett via intervjuer av fritidslärare som arbetar på sju olika skolor i Stockholms innerstad och förorter. Materialet har analyserats med hjälp av Scheffs (1994) teori om sociala band och resultatet har utmynnat i att lärarna på fritidshemmen upplever att sociala medier har stor betydelse för elevernas sociala relationer. Fritidslärarna upplever att sociala medier ger elever möjlighet att utveckla sin kommunikativa förmåga samt upprätthålla sina sociala relationer. De uttrycker även att elever lätt hamnar i konflikter, utsätts för näthat och har svårigheter med bemötanden av varandra vid kommunikation via sociala medier. De upplever även att eleverna har lättare att kränka någon via sociala medier eftersom man inte behöver mötas ansikte mot ansikte. Fritidslärarna upplever att användandet av sociala medier skapar gemenskap men även utanförskap hos eleverna samt att vuxna har en betydande roll i elevers användande av sociala medier för att förebygga eventuella konflikter.