Results 41 to 50 of about 28,661,875 (311)
Cumulants of Hawkes point processes
, 2015 We derive explicit, closed-form expressions for the cumulant densities of a multivariate, self-exciting Hawkes point process, generalizing a result of Hawkes in his earlier work on the covariance density and Bartlett spectrum of such processes.
Hertz, John +2 more
core +1 more source
Low-Rank Factorization of Determinantal Point Processes [PDF]
AAAI Conference on Artificial Intelligence, 2016 Determinantal point processes (DPPs) have garnered attention as an elegant probabilistic model of set diversity. They are useful for a number of subset selection tasks, including product recommendation.
Mike Gartrell +2 more
semanticscholar +1 more source
Fixed point results and their applications to Markov processes
Fixed Point Theory and Applications, 2005 New existence and comparison results are proved for fixed points of increasing operators and for common fixed points of operator families in partially ordered sets.
Heikkilä S
doaj +2 more sources
The Extreme Value Support Measure Machine for Group Anomaly Detection
MathematicsGroup anomaly detection is a subfield of pattern recognition that aims at detecting anomalous groups rather than individual anomalous points. However, existing approaches mainly target the unusual aggregate of points in high-density regions. In this way,
Lixuan An, Bernard De Baets, Stijn Luca
doaj +1 more source
Evaluating Approximate Point Forecasting of Count Processes
Econometrics, 2019 In forecasting count processes, practitioners often ignore the discreteness of counts and compute forecasts based on Gaussian approximations instead.
Annika Homburg +4 more
doaj +1 more source
Point processes and stochastic displacement fields
, 2004 The effect of a stochastic displacement field on a statistically independent point process is analyzed. Stochastic displacement fields can be divided into two large classes: spatially correlated and uncorrelated.
Gabrielli, Andrea
core +1 more source
Quantitative Assessment of the Trigger Effect of Proton Flux on Seismicity
EntropyAn estimate of the trigger effect of the proton flux on seismicity was obtained. The proton flux time series with a time step of 5 min, 2000–2024, was analyzed.
Alexey Lyubushin, Eugeny Rodionov
doaj +1 more source
Deconvolution of point processes [PDF]
, 2012 The superposition of two independent point processes can be described by multiplication of their probability generating functionals (p.g.fl.s). The inverse operation, which can be viewed as a deconvolution, is defined by dividing the superposed process ...
Clark, Daniel Edward
core
Amplitude and phase variation of point processes [PDF]
, 2016 We develop a canonical framework for the study of the problem of registration of multiple point processes subjected to warping, known as the problem of separation of amplitude and phase variation. The amplitude variation of a real random function $\{Y(x):
V. Panaretos, Y. Zemel
semanticscholar +1 more source
Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis +9 more
wiley +1 more source