Results 271 to 280 of about 914,102 (311)
Some of the next articles are maybe not open access.
2014
For digital devices to interact with the physical world, an interface is needed that transforms the signals from analog to digital and vice versa. Ideal samplers and zero-order hold devices are incorporated to derive discrete-time models of continuous-time systems. State variable descriptions and transfer functions are used.
Antsaklis, P., Trentelman, H. L.
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For digital devices to interact with the physical world, an interface is needed that transforms the signals from analog to digital and vice versa. Ideal samplers and zero-order hold devices are incorporated to derive discrete-time models of continuous-time systems. State variable descriptions and transfer functions are used.
Antsaklis, P., Trentelman, H. L.
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2020
Think about a time when you heard someone talking in a different language. Maybe you listened to the voice tones or the volume or the flow of words. Maybe you almost started thinking you could hear a familiar word or two, only to realize not. Statistics can sometimes feel like you are listening to a different language.
Matt Wiley, Joshua F. Wiley
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Think about a time when you heard someone talking in a different language. Maybe you listened to the voice tones or the volume or the flow of words. Maybe you almost started thinking you could hear a familiar word or two, only to realize not. Statistics can sometimes feel like you are listening to a different language.
Matt Wiley, Joshua F. Wiley
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Providing Data Samples for Free
SSRN Electronic Journal, 2020We consider the problem of a seller of data who sells information to a buyer regarding an unknown (to both parties) state of the world. Traditionally, the literature explores one-round strategies for selling information because of the seller’s holdup problem: once a portion of the data set is released, the buyer’s estimate improves, and as a result ...
Kimon Drakopoulos, Ali Makhdoumi
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Data sampling and data recovery
Experiments in Fluids, 1991The sampling theorem states that a continuous signal can always be reconstructed from an equi-spaced set of samples of the signal, as long as the sampling rate has been chosen in accordance with the Nyquist criterion, thus allowing economical use of sampling rate and data storage.
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Proceedings of the 24th ACM International on Conference on Information and Knowledge Management, 2015
The increasing prevalence of sensors and mobile devices has led to an explosive increase of the scale of spatio-temporal data in the form of trajectories. A trajectory aggregate query, as a fundamental functionality for measuring trajectory data, aims to retrieve the statistics of trajectories passing a user-specified spatio-temporal region.
Yanhua Li +7 more
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The increasing prevalence of sensors and mobile devices has led to an explosive increase of the scale of spatio-temporal data in the form of trajectories. A trajectory aggregate query, as a fundamental functionality for measuring trajectory data, aims to retrieve the statistics of trajectories passing a user-specified spatio-temporal region.
Yanhua Li +7 more
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Data Collection and Data Sample
2009The seventh chapter illustrates the process of data collection and the data sample. Firstly, the data collection method is outlined. Then, the generation of the data sample and its characteristics are presented. Finally, the data sample is evaluated in terms of representativeness and possible sample biases.
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The analysis of contact sampling data
Oecologia, 1980Use of the chi-square statistic for investigating interspecific association has been incorrectly applied to the contact sampling method because of an invalid probability argument. The usual method of calculating expected frequencies leads to a large overestimation and hence bias towards negative association.
Piet, de Jong +2 more
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2009 IEEE Custom Integrated Circuits Conference, 2009
The papers in this session highlight both emerging applications of over-sampling techniques and newer methods of their implementation in traditional analog-to-digital converters architectures. Performance enhancement techniques for both discrete- and continuous-time oversampled analog-to-digital converters are presented.
Pavan Kumar Hanumolu +1 more
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The papers in this session highlight both emerging applications of over-sampling techniques and newer methods of their implementation in traditional analog-to-digital converters architectures. Performance enhancement techniques for both discrete- and continuous-time oversampled analog-to-digital converters are presented.
Pavan Kumar Hanumolu +1 more
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Poučak : časopis za metodiku i nastavu matematike, 2016 U ovom članku objašnjavamo važnost podataka u današnjem svijetu i na primjeru ilustriramo potrebu da informacije sažmemo u formi tablice i histograma. U drugom dijelu članka objašnjavamo sto je to uzorak i simulacijama objašnjavamo zašto često zaključke donosimo upravo na temelju uzorka.
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Representative Sample Data for Data Warehouse Environments
2000The lack of sample data for data warehouse or OLAP systems usually makes it difficult for enterprises to evaluate, demonstrate or benchmark these systems. However, the generation of representative sample data for data warehouses is a challenging and complex task. Difficulties often arise in producing familiar, complete and consistent sample data on any
Thanh N. Huynh +3 more
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