Convergence of Probability Measures. By P. Billingsley. Chichester, Sussex, Wiley, 1968. xii, 253 p. 9 1/4“. 117s.

Convergence of Probability Measures

Covering point process theory, random geometric graphs and coverage processes, this rigorous introduction to stochastic geometry will enable you to obtain powerful, general estimates and bounds of wireless network performance and make good design choices for future wireless architectures and protocols that efficiently manage interference effects. Practical engineering applications are integrated with mathematical theory, with an understanding of probability the only prerequisite. At the same time, stochastic geometry is connected to percolation theory and the theory of random geometric graphs and accompanied by a brief introduction to the R statistical computing language. Combining theory and hands-on analytical techniques with practical examples and exercises, this is a comprehensive guide to the spatial stochastic models essential for modelling and analysis of wireless network performance.

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Stochastic Geometry for Wireless Networks

MUCKE aims to mine a large volume of images, to structure them conceptually and to use this conceptual structuring in order to improve large-scale image retrieval. The last decade witnessed important progress concerning low-level image representations. However, there are a number problems which need to be solved in order to unleash the full potential of image mining in applications. The central problem with low-level representations is the mismatch between them and the human interpretation of image content. This problem can be instantiated, for instance, by the incapability of existing descriptors to capture spatial relationships between the concepts represented or by their incapability to convey an explanation of why two images are similar in a content-based image retrieval framework. We start by assessing existing local descriptors for image classification and by proposing to use co-occurrence matrices to better capture spatial relationships in images. The main focus in MUCKE is on cleaning large scale Web image corpora and on proposing image representations which are closer to the human interpretation of images. Consequently, we introduce methods which tackle these two problems and compare results to state of the art methods. Note: some aspects of this deliverable are withheld at this time as they are pending review. Please contact the authors for a preview.

http://ieeexplore.ieee.org/iel2/4524/12820/00592460.pdf

Image Processing

https://rss.onlinelibrary.wiley.com/doi/pdf/10.1111/j.2517-6161.1977.tb01615.x

Modelling Spatial Patterns

结节病易误诊,据王洪武等~([1])收集国内18篇关于此病误诊的文献,误诊率高达63.2%,当然有误诊就会有误治,如孙永昌等~([2])报道26例结节病在影像学检查诊断的第一印象中拟诊结核5例,其中就有2例完成规范的抗结核治疗,为此应引起临床对本病诊治的重视。

Sarcoidosis

The response of some nucleation/growth processes to triangular scans of potential

A self-correcting point process

PURPOSE The British Ocular Syphilis Study (BOSS) is the first national prospective epidemiological study of intraocular syphilis (IOS) in light of the global increase in early syphilis (ES). The aims were to ascertain the UK incidence, demographics, clinical features, laboratory data, and posttreatment visual outcomes of patients with IOS. METHODS Prospective study of IOS, reported through the national reporting system (British Ocular Surveillance Unit) from 2009 to 2011. Case definition was any adult presenting with intraocular inflammation in ES. RESULTS A total of 41 new cases (63 eyes) of IOS were reported, giving an annual incidence of 0.3 per million UK adult population. Mean age was 48.7 years (range, 20.6-75.1); 90.2% were male. All had RPR/VDRL titers of ≥1:16. Bilateral ocular involvement occurred in 56%; in unilateral cases, the left eye was more commonly affected (P = 0.009). Mean presenting logMAR visual acuity was 0.52 (20/63 Snellen; range, -0.2 to 2.30 logMAR). Panuveitis was the commonest diagnosis, seen in 41.3%, and isolated anterior uveitis was uncommon (9.5%). Subgroup analysis between HIV-positive and -negative patients found no significant differences in terms of proportion of bilateral disease, presenting or post treatment acuity. HIV-positive patients had higher rates of panuveitis. At final follow-up, 92.1% had visual acuity ≥ 0.3 logMAR (20/40 Snellen) after antibiotic therapy. CONCLUSIONS This study is the largest prospective series of ocular syphilis in the post-penicillin era. It confirms good visual outcomes for treated IOS, irrespective of HIV status or time to presentation. The study identified an unexpected preponderance for left eye involvement in uniocular cases; which is unexplained.

British Ocular Syphilis Study (BOSS): 2-year national surveillance study of intraocular inflammation secondary to ocular syphilis.

Aim: To examine the level of agreement between clinicians in assessing progressive deterioration in visual field series using two different methods of analysis. Methods: Each visual field series satisfied the following criteria: more than 19 reliable fields, patient age over 40 years, macular threshold at least 30 dB. The first three fields in each series were excluded to minimise learning effects: the following 16 were studied. Five expert clinicians assessed the progression status of each series using both standard Humphrey printouts and pointwise linear regression (progressor). The level of agreement between the clinicians was evaluated using a weighted kappa statistic. Results: A total of 432 tests comprising 27 visual field series of 16 tests each were assessed by the clinicians. The level of agreement on progression status between the clinicians was always higher when they used progressor (median kappa = 0.59) than when they used Humphrey printouts (median kappa = 0.32). This was statistically significant (p = 0.006, Wilcoxon matched pairs signed rank sum test). Conclusions: Agreement between expert clinicians about visual field progression status is poor when standard Humphrey printouts are used, even when the field series studied are long and consist solely of reliable fields. Under these ideal conditions, clinicians agree more closely about patients’ visual field progression status when using progressor than when inspecting series of Humphrey printouts.

https://bjo.bmj.com/content/bjophthalmol/87/6/726.full.pdf

Interobserver agreement on visual field progression in glaucoma: a comparison of methods.

This paper is concerned with certain aspects of the theory and application of the probability generating functional (p.g.fl) of a point process on the real line. Interest in point processes has increased rapidly during the last decade and a number of different approaches to the subject have been expounded (see for example [6], [11], [15], [17], [20], [25], [27], [28]). It is hoped that the present development using the p.g.ﬀ will calrify and unite some of these viewpoints and provide a useful tool for solution of particular problems.

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Mark Westcott

Papers

The response of some nucleation/growth processes to triangular scans of potential

A self-correcting point process

British Ocular Syphilis Study (BOSS): 2-year national surveillance study of intraocular inflammation secondary to ocular syphilis.

Interobserver agreement on visual field progression in glaucoma: a comparison of methods.

The probability generating functional