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| 1 | 基于在线客户评论的客户细分研究显示文摘针对基于在线客户评论数据进行客户细分分析的问题,设计了二阶段客户细分分析框架。在客户偏好建模阶段,设计了同义属性识别方法和属性偏好换算方法,基于产品属性树结构,构建粒度统一的客户偏好向量;在客户聚类阶段,设计了包含最优聚类数识别的聚类流程,基于模糊C均值聚类方法,对客户进行聚类。 | 蔡淑琴 蒋士淼 G D OLLE OLLE 秦志勇 | 2015 | 管理学报2015,12,7: | 9 |
| 2 | Epidemiologic characteristics of Helicobacter pylori infection in southeast Hungary显示文摘BACKGROUND Epidemiologic studies have revealed a decrease in the prevalence of Helicobacter pylori(H.pylori)infection in Western Europe.AIM To obtain data regarding the prevalence of H.pylori in Csongrád and Békés Counties in Hungary,evaluate the differences in its prevalence between urban and rural areas,and establish factors associated with positive seroprevalence.METHODS One-thousand and one healthy blood donors[male/female:501/500,mean age:40(19–65)years]were enrolled in this study.Subjects were tested for H.pylori IgG antibody positivity via enzyme-linked immunosorbent assay.Subgroup analysis by age,gender,smoking habits,alcohol consumption,and urban vs nonurban residence was also performed.RESULTS The overall seropositivity of H.pylori was 32%.It was higher in males(34.93%vs 29.2%,P=0.0521)and in rural areas(36.2%vs 27.94%,P=0.0051).Agricultural/industrial workers were more likely to be positive for infection than office workers(38.35%vs 30.11%,P=0.0095)and rural subjects in Békés County than those in Csongrád County(43.36%vs 33.33%,P=0.0015).CONCLUSION Although the prevalence of H.pylori infection decreased in recent decades in Southeast Hungary,it remains high in middle-aged rural populations.Generally accepted risk factors for H.pylori positivity appeared to be valid for the studied population. | Lenke Bálint Andrea Tiszai Gábor Kozák Ilona Dóczi Veronika Szekeres Orsolya Inczefi Georgina Ollé Krisztina Helle Richárd Róka András Rosztóczy | 2019 | World Journal of Gastroenterology2019,25,42: | 5 |
| 3 | Stable femtosecond X-rays with tunable polarization from a laser-driven accelerator显示文摘Technology based on high-peak-power lasers has the potential to provide compact and intense radiation sources for a wide range of innovative applications.In particular,electrons that are accelerated in the wakefield of an intense laser pulse oscillate around the propagation axis and emit X-rays.This betatron source,which essentially reproduces the principle of a synchrotron at the millimeter scale,provides bright radiation with femtosecond duration and high spatial coherence.However,despite its unique features,the usability of the betatron source has been constrained by its poor control and stability.In this article,we demonstrate the reliable production of X-ray beams with tunable polarization.Using ionization-induced injection in a gas mixture,the orbits of the relativistic electrons emitting the radiation are reproducible and controlled.We observe that both the signal and beam profile fluctuations are significantly reduced and that the beam pointing varies by less than a tenth of the beam divergence.The polarization ratio reaches 80%,and the polarization axis can easily be rotated.We anticipate a broad impact of the source,as its unprecedented performance opens the way for new applications. | Andreas Döpp Benoit Mahieu Agustin Lifschitz Cedric Thaury Antoine Doche Emilien Guillaume Gabriele Grittani Olle Lundh Martin Hansson Julien Gautier Michaela Kozlova Jean Philippe Goddet Pascal Rousseau Amar Tafzi Victor Malka Antoine Rousse Sebastien Corde Kim Ta Phuoc | 2017 | Light(Science & Applications)2017,6,1: | 2 |
| 4 | Three-di?mensionally ordered array of air bubbles in a polymer film显示文摘 | Srinivasarao M Ollings D Philips A etal | 2001 | Science2001,292,: | 1 |
| 5 | Optical performance of an oscillating, pinned-contact double droplet liquid lens显示文摘 | Joseph D Olles Michael J Vogel | 2011 | Optics Express2011,19,19: | 1 |
| 6 | Effect of pre- and post-veraison water deficit on proanthocyanidins and anthocyanin accumulation during Shiraz berry development显示文摘 | Olle D Guiraud J L Souquet J M | 2011 | Australian Jour- nal of Grape and Wine Research2011,17,: | 1 |
| 7 | Pathogenesis of avian pneumovirus infection in Turkeys 显示文摘 | Jirjis F F Oll S L Halvorson D Avet a1 | 2002 | Vet Pathol2002,39,: | 1 |
| 8 | 显示文摘 | Srinivasarao M Ollings D Philips A | 2001 | Science2001,292,79: | 1 |
| 9 | Pathogenesis of avian pneumovirus infection in Turkeys 显示文摘 | Jirjis F F Oll S L Halvorson D A | 2002 | Vet Pathol2002,39,: | 1 |
| 10 | Effect of pre-and post-ve-raison water deficit on proanthocyanidins and anthocyanin accumulationduring Shiraz berry development显示文摘 | OLLE D GUIRAUD J L SOUQUET J M | 2011 | Australian Journal of Grape andWine Research2011,17,: | 1 |
| 11 | Assessing the quality of re- ports of randomized clinical trials:is blinding necessary? 显示文摘 | Jadad AR Moore RA Can'oll D | 1996 | Con- tr Clin Trials1996,17,1: | 1 |
| 12 | Three-dimensionally ordered array of air bubbles in a polymer film显示文摘 | Srinivasarao M Ollings D Philips A | 2001 | Science2001,292,: | 1 |
| 13 | Roles of calcium and annexins in phagocytosis and elimination of an attenuated strain of Mycobacterium tuberculosis in human neutrophils显示文摘 | Meytham Majeed Nasrin Perskvist Joel D Ernst Kristina Orselius Olle Stendahl | 1998 | Microbial Pathogenesis1998,,5: | 1 |
| 14 | Effect of pre-and post-veraison water deficit on proanthocyanidinsand anthocyanin accumulation during Shiraz berry de-velopment显示文摘 | OlléD Guiraud J L Souquet J M | 2011 | Australian Journal of Grape and WineResearch2011,17,1: | 1 |
| 15 | Three-dimensionallyordered array of air bubbles in a polymer film显示文摘 | Srinivasarao M Ollings D Philips A | 2001 | Science2001,292,: | 1 |
| 16 | Electromagnetic liquid pistons for capillarity-based pumping显示文摘 | MALOUIN B VOGEL M J OLLES J D | | 0,,03: | 1 |
| 17 | 基于人工神经网络的微博投诉句识别显示文摘近年来,微博投诉成为用户维权的新途径。面对海量微博投诉,企业如何在有限资源下实现微博投诉自动诊断和处理,引发了学术和业界的高度关注。微博投诉句识别是微博投诉自动化处理的前提。本文针对微博投诉句识别问题,设计了微博投诉句识别框架,提出了投诉句识别的MCSI模型;应用人工神经网络方法,基于投诉信息特征、语句位置、句式、句长、词频5个属性,识别语句是否为投诉句。与多种基线模型相比,本文提出的模型可以提高投诉句识别性能。 | 蔡淑琴 蒋士淼 秦志勇 G D Olle Olle | 2014 | 情报学报2014,33,11: | 1 |
| 18 | Matrix metalloproteinase-9 is an important factor in hepatic regeneration after partial hepatectomy in mice显示文摘 | Olle E W Ren X McClintock S D | 2006 | Hepatology2006,44,3: | 1 |
| 19 | Cancer-specific mortality after surgery or radiation for patients with clinically localized prostate cancer managed during the prostate-specific antigen era 显示文摘 | D'Amieo AV Moul J Can'oll PR | 2003 | J Clin Onc012003,21,: | 1 |
| 20 | Seroprevalence of hepatitis A, B, C, and D markers and liver function abnormalities in intravenous heroin addicts 显示文摘 | Tennant F M oll D | 1995 | J Addict Dis1995,14,: | 1 |