Network arrivals are often modeled as Poisson processes for analytic simplicity, even though a number of traffic studies have shown that packet interarrivals are not exponentially distributed. We evaluate 24 wide-area traces, investigating a number of wide-area TCP arrival processes (session

The 2–Poisson model for term frequencies is used to suggest ways of incorporating certain variables in probabilistic models for information retrieval. The variables concerned are within-document term frequency, document length, and within-query term frequency. Simple weighting functions

depremselliğini araştırmak için Gutenberg-Richter magnitüd-frekans ilişkisi, sismik risk ve tekrarlanma peryodu hesaplanmıştır. Çözümlemede 1900 öncesi tarihsel dönem (I0 ≥ 5.0 şiddet değerleri MS ≥ 4.4 magnitüdlerine karşılık gelmektedir) ve 2007’ye kadar olan aletsel dönem (MS ≥ 4.0) deprem verileri kullanılmıştır. İnceleme alanı bölgenin sismotektonik özellikleri, levha tektoniği modelleri ve jeolojisi dikkate alınarak 15 alt-bölgeye ayrılmıştır ve tüm hesaplamalar bu alt-bölgeler için ayrı ayrı yapılmıştır. Elde edilen sonuçlara gore, hesaplanan magnitüd-frekans ilişkisindeki a ve b değerleri 3.10±0.24-5.29±0.52 and 0.39±0.03-0.73±0.08 aralığında bulunmuştur. En yüksek b değerleri 7. (Gökova Körfezi-Muğla-Gölhisar) ve 1. (İzmir-Sakız adası) alt-bölgeler için, en düşük b-değerleri ise 15. (Antakya) ve 8. (Bodrum-İstanköy) alt-bölgeler için bulunmuştur. Son olarak a ve b değerlerinden yararlanarak yapılan sismik risk ve tekrarlanma peryodları hesaplamaları en yüksek risklerin ve en kısa tekrarlanma peryodlarının en düşük b değerlerine sahip 15 ve 8.alt-bölgelerde olduğunu göstermiştir.

potentials is clusters or bursts, and these tend to be poorly described a purely Poisson spike-generation process. Below, I present ways of extending the Poisson model to account for refractoriness and bursting. 1 Probability and Random Processes A random variable is a number assigned to every outcome

Harter’s 2-Poisson model of Information Retrieval is a univariate model of the raw term frequencies, that does not condition the probabilities on document length [2]. A bivariate stochastic model is thus introduced to extend Harter’s 2-Poisson model, by conditioning the term frequencies

for earthquake frequency uncertainties in seismic hazard analysis

We show that surface reconstruction from oriented points can be cast as a spatial Poisson problem. This Poisson formulation considers all the points at once, without resorting to heuristic spatial partitioning or blending, and is therefore highly resilient to data noise. Unlike radial basis

Weak solutions of a Vlasov-Schrödinger-Poisson system are shown to exist in the stationary and time-dependent situations. This system models the transport and interaction of electrons in a bidimensional electron gas. The particles are assumed to have a wave behaviour in the confinement directions

Evaluation of the electrostatic properties of biomolecules has become a standard practice in molecular biophysics. Foremost among the models used to elucidate the electrostatic potential is the Poisson-Boltzmann equation, however, existing methods for solving this equation have limited the scope

) in terms of the spatial density of measurements over the sensor observation region. In particular, the measurements are modelled as a Poisson process with a spatially dependent rate parameter. This representation allows us to model extended targets as an intensity distribution rather than a set of points