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 20 of 93 for “"Data Aggregation"”.
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Beyond Cryptography: Deniable Privacy for Secure Data Aggregation
… properties of the count function, an essential data aggregation primitive, in the context of a real-world secure data aggregation platform called SCRAM (Secure Cyber Risk Aggregation and Measurement). Subject to the constraints of few data contributors and a limited tolerance for noise in the …
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Automatic data aggregation for software distributed shared memory systems
… programs typically achieve better data aggregation in their messages than programs using software DSM. Software DSM has poorer data aggregation because the system lacks the knowledge of the application's behavior that a programmer or compiler analysis can provide. We propose four …
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Data Aggregation and Dissemination in Vehicular Ad-Hoc Networks
… category, depend on having certain vehicular data(vehicular speed, <em>X</em> position and <em>Y</em> position) available. Although these applications appear to use the same vehicular data, the characteristics of this data (<em>i.e.</em>, amount, accuracy, and update rate) will vary based on …
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Improving parts delivery through data aggregation, analysis, and consumption
Data analytics and visualization are topics of significant interest in the business and manufacturing communities. This research investigates the hypothesis that, if production floor managers consume properly analyzed data, then their ability to solve problems and prevent production system …
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Automating data aggregation for collaborative filtering in Ruby on Rails
… tried and proven methods of utilizing aggregated data about a website's users to provide catered content. Passive filters are one subset of such algorithms that utilize data about a user's interactions with a website in viewing content, purchasing items, etc. My work develops a set of extensions …
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Mobile Network and Cloud Based Privacy-Preserving Data Aggregation and Processing
… has brought a new and efficient way for data to be collected, processed and stored by mobile users. With improved specifications of mobile devices and various mobile applications provided by cloud servers, mobile users can enjoy tremendous advantages to manage their daily life through …
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Achieving Privacy and Integrity of Data Aggregation in Wireless Sensor Networks
… and compare their performance to a typical data aggregation scheme, Tiny Aggregation protocol (TAG), where no privacy preservation and integrity protection is provided. We explore multiple dimensions in design space, and investigate the tradeoffs in protocol design. To the best of our …
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Data Aggregation Reporting Tool for Implementation in Home Health Fall Reduction Program
… of the project consisted of aggregating fall data for benchmarking metrics to bring the agency’s Fall Reduction Program closer to compliance with state and national fall prevention guidelines. Two hundred and three fall event reports were analyzed and a problem arose from the collected …
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Location aware data aggregation for efficient message dissemination in Vehicular Ad Hoc Networks
… the LA mechanism - an intelligent, locationaware data aggregation mechanism for real-time observation, estimation and efficient dissemination of messages in VANETs. The proposed mechanism is based on a generic modelling approach which makes it applicable to any type of VANET applications. The data …
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Optimizing, Testing, and Securing Mobile Cloud Computing Systems For Data Aggregation and Processing
… and fields of research, such as crowdsourced data collection, and has helped spur substantial changes in research fields such as vehicular ad hoc networking. However, the growth of Mobile Cloud Computing has resulted in a number of new challenges, such as testing large-scale Mobile Cloud …
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Performance evaluation of different data aggregation algorithms for different types of sensors in WSN based cluster
In wireless sensor networks, data aggregation algorithms are used to extend the network lifetime Size of data transmission from the cluster head node to base station show a critical role in CH nodes energy consumption. In this project three different data aggregation algorithms coding schemes based …
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Digital Health-Data platforms : biometric data aggregation and their potential impact to centralize Digital Health-Data
Digital Health-Data is being collected at unprecedented rates today as biometric micro sensors continue to diffuse into our lives in the form of smart devices, wearables, and even clothing. From this data, we hope to learn more about preventative health so that we can spend less money on the …
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An exploration of the effects of data aggregation and other factors on empirical estimates of market power
… require detailed price, quantity, and cost data regarding the industry being studied. The models used are derived from the profit maximization problem of individual firms. In spite of this fact, many previous studies have relied on publicly available industry aggregate data, often also …
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Secure and privacy-preserving smart metering systems: a novel framework for data aggregation using encryption and reversible watermarking
A mesura que el món adopta la nova era de les tecnologies intel·ligents i la proliferació d'equips IoT, com ara les xarxes elèctriques intel·ligents i els sistemes de mesura, sorgeix una preocupació creixent pel que fa a la privadesa i la seguretat de la informació confidencial dels usuaris. Els …
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The effects of data aggregation on econometric estimates of climate change impact on corn and soybean production in the Midwest
Climatologists have attempted to predict changes in regional climate patterns caused by increasing levels of CO$\sb2$ and other trace gases in the atmosphere. Although the effects of climate are felt at the individual firm level, aggregate effects on crop production will determine if significant …
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A Multidimensional Study of Transit Ridership and Station Mode Shares in the United States: Nonlinear Effects, Data Aggregation, and Post-Pandemic Changes
… behavior (Delclòs-Alió et al.) and assessing data aggregation effects around different transit station types at the local level, along with identifying key predictors of ridership across transit modes at the regional level, offers valuable insights for policy efforts. Specifically, the …
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Evaluation of application of ontology and semantic technology for improving data transparency and regulatory compliance in the global financial industry
… there are increasing motivations for financial data standardization. The financial crisis in 2008 revealed the risk management issues, including risk data aggregation and risk exposure reporting, at many banks and financial institutions. After the crisis, the Dodd-Frank Act required transaction …
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Energy efficient organization and modeling of wireless sensor networks
… is considered and studied. Based on the data-centric characteristic of wireless sensor networks, an efficient Quality of Service (QoS)-constrained data aggregation and processing approach for distributed wireless sensor networks is investigated and analyzed. One of the key features of the …
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Aukšto dažnio duomenų agregavimas ir vertės pokyčio rizika /
… currencies position VaR estimates’ dependence on data aggregation functions (pointwise, maximum value, minimum value and average value) is provided. Functional ρ−GARCH(1,1) model is introduced and theorems of the stationary solution existence and maximum likelihood estimators of model parameters …
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