Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"geo-location"”.
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Indoor Geo-location And Tracking Of Mobile Autonomous Robot
… there is signal attenuation outdoors. Indoor geolocation forms the basis of tracking robots inside buildings and other places where GPS signals are unavailable. Indoor geolocation has traditionally been the field of wireless networks using techniques such as low frequency RF signals and …
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Advancing security information and event management frameworks in managed enterprises using geolocation
… techniques and solutions can be complemented by location-based information provided by feeder systems. In addition, and associated with the introduction of location information, it is hypothesised that privacy-enforcing procedures on geolocation data in SIEMs and meta- systems alike are necessary …
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A micropower ultra-wideband RADAR profiling system
… including radar, communications, and geo-location. In this dissertation, UWB technology is utilized to directly generate sub-nanosecond pulses with more than 1 GHz bandwidth to implement radio detection and ranging (RADAR) for distances up to 5 or 10 metres. This low-cost, rnicropower …
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Information cards and a design to extend the claim model to incorporate geolocation
… there have arisen a large number of location aware web application and services which detect and use a user's location to enhance their application experience. These advances, although useful, present new security and privacy issues. This paper investigates the operation of one of the …
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Market research of commercial recommendation engines for online and offline retail
… social log-in, point of sales, mobile payments, geo-location targeting, digital wallet, natural language processing, data aggregation, data warehouse, and data normalization.
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The role of social media in measuring human response to urban flash flooding
… sentiment analysis. In particular, weibos with geo-location information were extracted to draw different sentiment maps for the city. Sentiment maps show the public emotion (polarity, intensity and type) geographically. Through these analyses, I set out to construct a framework to process …
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Constrained Clustering for Frequency Hopping Spread Spectrum Signal Separation
… fingerprinting characteristics or approximate geo-location estimates. This work will consider the characteristics of FHSS signals that can be extracted directly from signal detection. From estimates of these hopping characteristics, novel source separation with classic clustering algorithms can …
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Geo-Locating Tweets with Latent Location Information
… Since many tweets talk about events (with useful location information), such as natural disasters, emergencies, and accidents, it is important to geo-locate those tweets whenever possible. Due to possible location ambiguity, finding a tweet's location often is challenging. Many distinct places …
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Balancing utility and privacy of high-dimensional datasets : mobile phone metadata
… of sensitive information such as citizens' geo-location. Moreover, recent research has shown adversarial methods that successfully associate sensitive information in the datasets to individuals, even under pseudonymization of all personal identifiers. This thesis conceptualizes, relates, and …
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Studying, developing, and experimenting contextual advertising systems
… a conjunct study of Contex-tual Advertising and Geo-Localization, and I study the task of advertising in the field of Multi-Modal Aggregation. The thesis is organized as follows. In Chapter 1, we briefly describe the main aspects of Information Retrieval. Following, the Chapter 2 shows the …
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Bayesian Estimators, Error Bounds, and Applications to Imaging
… in communications, range finding in RADAR, geo-location and tracking in sensor networks. A comparison with the existing bounds on the MMSE shows that our upper bound performs optimally in terms of its tightness to the MMSE and is the best of all bounds that we considered in all regions of …
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Social and engineering perspectives on optimal farm management and reliable grain supply chain networks
… by utilizing Twitter, which also provides geolocation data with finer spatial resolution. The results showed that social networks contribute more real-time regional crop planting schedules compared to official NASS reports, which can be ahead of time by five days on average at the early …
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Accurate Target Geolocation and Vision-Based Landing with Application to Search and Engage Missions for Miniature Air Vehicles
… it is important to be able to accurately geolocate items of interest in the visual data. However, the inaccuracies associated with MAV platforms have led to relatively large errors in previous attempts at geolocation. The first half of this thesis focuses on increasing the accuracy of …
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Android at risk: current threats stemming from unprotected local and external resources
… by an adversary to infer a user’s identity, geo-location, disease condition she is interested in, invest- ment information and her driving route. These information leaks, stem from local resources shared among all installed apps on Android: per-app data- usage statistics; ARP (Address …
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On the feasibility of the communications in the TVWS spectrum analysis and coexistence issue
… unused, due to coverage problems. New spectrum allocation approaches such as the dynamic spectrum access method have been studied. This new concept implies that the radio terminals have the capacity to monitor their own radio environment and consequently adapt to the transmission conditions on …