Results 231 to 240 of about 38,209 (266)
Some of the next articles are maybe not open access.
Medium PRF radar PRF optimisation using evolutionary algorithms
Proceedings of the 2003 IEEE Radar Conference (Cat. No. 03CH37474), 2004In this paper we employ evolutionary algorithms for the selection of optimal pulse repetition frequency (PRF) sets to minimise range-Doppler blindness in a model of a medium PRF radar. Both eight and nine PRF schedules are considered and the algorithm ensures that all the solutions produced are fully decodable and have no blind velocities.
E.J. Hughes, C.M. Alabaster
openaire +1 more source
On the Adaptive Security of MACs and PRFs
2020We consider the security of two of the most commonly used cryptographic primitives—message authentication codes (MACs) and pseudorandom functions (PRFs)—in a multi-user setting with adaptive corruption. Whereas is it well known that any secure MAC or PRF is also multi-user secure under adaptive corruption, the trivial reduction induces a security loss ...
Andrew Morgan, Rafael Pass, Elaine Shi
openaire +2 more sources
[Proceedings] IGARSS'91 Remote Sensing: Global Monitoring for Earth Management, 2005
For high precision Synthetic Aperture Radar (SAR) processing, the determination of the Doppler centroid is indispensable. The Doppler frequency estimated from azimuth spectra, however, suffers from the fact that the data are sampled with the pulse repetition frequency (PRF) and an ambiguity about the correct PRF band remains.
Bamler, Richard, Runge, Hartmut
openaire +2 more sources
For high precision Synthetic Aperture Radar (SAR) processing, the determination of the Doppler centroid is indispensable. The Doppler frequency estimated from azimuth spectra, however, suffers from the fact that the data are sampled with the pulse repetition frequency (PRF) and an ambiguity about the correct PRF band remains.
Bamler, Richard, Runge, Hartmut
openaire +2 more sources
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010
In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a language, we take the help of another language to ameliorate the well known problems of PRF, viz.
CHINNAKOTLA, MK +2 more
openaire +1 more source
In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a language, we take the help of another language to ameliorate the well known problems of PRF, viz.
CHINNAKOTLA, MK +2 more
openaire +1 more source
Watermarking PRFs from Lattices: Stronger Security via Extractable PRFs
2019A software watermarking scheme enables one to embed a “mark” (i.e., a message) within a program while preserving the program’s functionality. Moreover, there is an extraction algorithm that recovers an embedded message from a program. The main security goal is that it should be difficult to remove the watermark without destroying the functionality of ...
Sam Kim, David J. Wu 0001
openaire +2 more sources
Medium PRF radar PRF selection using evolutionary algorithms
IEEE Transactions on Aerospace and Electronic Systems, 2003Evolutionary algorithms are applied to the optimization of pulse repetition frequency (PRF), for both eight-and nine PRFs, in medium PRF radar while considering the detailed effects of sidelobe clutter and many other technical factors. The algorithm presented also ensures that all the solutions produced are fully decodable and have no blind velocities.
C.M. Alabaster +2 more
openaire +1 more source
Educational and Psychological Measurement, 1980
The study represents a followup to an ealier one of the relation ship between measures of personality characteristics and peer rat ings. Applicants for positions as college dormitory resident assistants participated in small group workshops followed by peer ratings of group members on five criteria regarding their potential as a resi dent assistant ...
Alan J. Klockars, Hugh R. Walkup
openaire +1 more source
The study represents a followup to an ealier one of the relation ship between measures of personality characteristics and peer rat ings. Applicants for positions as college dormitory resident assistants participated in small group workshops followed by peer ratings of group members on five criteria regarding their potential as a resi dent assistant ...
Alan J. Klockars, Hugh R. Walkup
openaire +1 more source
Titanium platelet–rich fibrin (T-PRF) as high-capacity doxycycline delivery system
Clinical Oral Investigations, 2022Esra Ercan +2 more
exaly