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Big Data Stream Analytics for Near Real-Time Sentiment Analysis

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Journal of Computer and Communications 2015年第5期3卷 189-195页

作者： Otto K. M. Cheng raymond lau Department of Information Systems City University of Hong Kong Hong Kong China

In the era of big data, huge volumes of data are generated from online social networks, sensor networks, mobile devices, and organizations’ enterprise systems. This phenomenon provides organizations with unprecedented opportunities to tap into big data to mine valuable business intelligence. However, traditional business analytics methods may not be able to cope with the flood of big data. The main contribution of this paper is the illustration of the development of a novel big data stream analytics framework named BDSASA that leverages a probabilistic language model to analyze the consumer sentiments embedded in hundreds of millions of online consumer reviews. In particular, an inference model is embedded into the classical language modeling framework to enhance the prediction of consumer sentiments. The practical implication of our research work is that organizations can apply our big data stream analytics framework to analyze consumers’ product preferences, and hence develop more effective marketing and production strategies.

关键词： Big Data Data Stream Analytics Sentiment Analysis Online Review

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凌空流动

缤纷 2014年第11期 170-177页

作者： raymond lau 张晓 Jerry Yin

本案中的样板问位于上海虹桥机场旁边的凌空SOHO内。为了配合建筑师扎哈强烈的个人风格，设计师将空间以相适应的建筑语言进行演绎。其目的就在于通过恣意流动的轮廓让参观者对主体建筑形态产生一种深刻的形态体验和感受。本次案例的空... 详细信息

本案中的样板问位于上海虹桥机场旁边的凌空SOHO内。为了配合建筑师扎哈强烈的个人风格，设计师将空间以相适应的建筑语言进行演绎。其目的就在于通过恣意流动的轮廓让参观者对主体建筑形态产生一种深刻的形态体验和感受。本次案例的空间，位于世界著名建筑大师扎哈·哈迪德在上海的作品凌空SOHO之内。这栋总面积超过35万平方米的大型建筑比邻上海虹桥机场，是SOHO中国在上海的标志性发展项目。而这个350平方米的样板间则位于建筑的二层，通过窗口人们可以俯瞰整个建筑的南人口。

关键词： SOHO 虹桥机场建筑形态建筑师个人风格建筑语言建筑大师大型建筑

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澳门珠海蓝色海岸计划建议工程可行性探讨

澳门珠海蓝色海岸计划建议工程可行性探讨

第四届粤港澳可持续发展研讨会

作者：黄灿光 raymond lau 梁浩瀚香港奥雅纳英国伦敦扎哈·哈迪德建筑事务所美国纽约州立大学Oneonta分校社会系

本研究课题是继第一部分人文社会学论新城和第二部分城市规划看新城后论工程的可行性。建议在澳门和横琴南面的浅海区填海造地而得各16km作新城。澳门以岛屿出现在距路环黑沙海滩约1～2 km 的浅海上。珠海以一半岛出现在横琴南面。本课...

本研究课题是继第一部分人文社会学论新城和第二部分城市规划看新城后论工程的可行性。建议在澳门和横琴南面的浅海区填海造地而得各16km作新城。澳门以岛屿出现在距路环黑沙海滩约1～2 km 的浅海上。珠海以一半岛出现在横琴南面。本课题是要通过不太复杂的工程手段将现时海湾含大量泥沙的水改造为清澈的蓝色。方法是在低潮时阻隔上游来的含大量泥沙的水,而在高潮时让海水通过堤坝流进湾内。利用此法改善水质。项目除了要得到珠海方面配合外,整个项目必须得到中央政府批准及广东省政府支持才能办起。本文目的是希望通过这研究课题探讨在离开澳门特别行政区中心的其他地方建新城的可能性。让中心地段得以舒缓,保护文化遗产。珠海可利用此新城建一高速公路连接珠海西部至港珠澳大桥起点,打通东西两地。并与澳门特别行政区一起发展深水码头。更大胆的构思是建一跨海桥到黄茅岛而与澳门特别行政区共同发展那里的一个很好的天然深水港,可作邮轮码头、海洋公园等等高档次的产业,提高两地的国际形象及地位。最后,以近期国内完成的同类工程为参考做出造价估算,当在 400亿～600亿。又以澳珠两地的平均地价作参考,假设将来以25%土地面积及5倍的地枳比出售作补贴,如全部成功售出可得3,000亿～3,600亿。也就是说本项目的所有基建包括填海、造路、架桥、隧道等可以完全由城市发展时的部分卖地所得支付,只要做好环保的补偿工作,诚是不可多得的项目。

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澳门珠海蓝色海岸计划建议(英文)

澳门珠海蓝色海岸计划建议(英文)

Portal venous gas and thrombosis in a Chinese patient with fulminant Crohn’s colitis: A case report with literature review

第四届粤港澳可持续发展研讨会

作者： Ho Hon Leung raymond lau Carlos Wong 美国纽约州立大学Oneonta分校社会系英国伦敦扎哈·哈迪德建筑事务所香港奥雅纳

本文旨在为澳门特别行政区和珠海的碧海工程理念提出一个概念性框架。该理念的提出以广泛的社会学和建筑学理论与实际研究为依据。本文论述了民族特性和建筑之间的互动关系。虽然社会学和建筑学属于完全不同的两个学科,但是在这两个学科... 详细信息

本文旨在为澳门特别行政区和珠海的碧海工程理念提出一个概念性框架。该理念的提出以广泛的社会学和建筑学理论与实际研究为依据。本文论述了民族特性和建筑之间的互动关系。虽然社会学和建筑学属于完全不同的两个学科,但是在这两个学科里,民族特性的表达方式是相同的,那就是土地。许多关于民族特性的理论研究都突出了领土和家园的重要性,而任一历史时期的建筑都可以反映出当时的社会发展状况以及族群的特点。这类理论的探讨主要采用对文献的研究以及借鉴梁和刘对加拿大、美国、希腊和香港特别行政区等国家和地区的许多案例分析。我们认为对于建筑而言,不可能不参考任何外界因素而完全孤立的建造,而应该充分考虑其被社会所能接受的程度,即生活在当地的族群的接受程度。同时,研究这些社会条件的学者和专业人士也不应该忽视建筑和建筑产生的环境对社会的重要贡献。因此而形成的这种社会学和建筑学之间的互动关系可以多方面为实践工作服务:有助于研究一个地方或城市的历史发展;对某个地方或城市今后的可持续发展提供预策和决策;为未来的建筑和建筑营造出来的建筑环境提出规划设想。本届会议的其他两篇文章将详细介绍我们如何在该框架内提出澳门特别行政区和珠海的碧海工程的构想。

关键词：建筑环境设计理念民族特性

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World Journal of Gastroenterology 2006年第34期12卷 5582-5586页

作者： Simon Siu-Man Ng raymond Ying-Chang Yiu Janet Fung-Yee Lee Jimmy Chak-Man Li Ka-lau Leung Department of Surgery The Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong SAR China

Ever since its earliest reports, portal venous gas (PVG) has been associated with numerous intraabdominal catastrophes and has served as an indication for urgent surgical exploration. It is traditionally regarded to be an ominous finding of impending death, with highest mortality reported in patients with underlying bowel ischemia. Today, computed tomography has demonstrated a wider range of clinical conditions associated with PVG, some of which are ‘benign’ and do not necessarily require surgery, unless when there are signs of intraabdominal catastrophe or systemic toxicity. One of these ‘benign’ conditions is Crohn’s disease. The present report describes a 19-year-old Chinese boy with Crohn’s pancolitis who presented with septic shock associated with PVG and portal vein thrombosis, and was successfully managed surgically. To our knowledge, this is the fi rst report of PVG and portal vein thrombosis associated with Crohn’s disease in a Chinese patient. In addition, we have also reviewed the reports of another 18 Crohn’s patients with PVG previously described in the English literature. Specifi c predisposing factors for PVG were identified in 8 patients, including barium enema, colonoscopy, blunt abdominal trauma, and enterovenous f istula. The patients who developed PVG following barium enema and blunt trauma were all asymptomatic and no specifi c treatment was necessary. Eleven patients (58%) who presented with signs of intraabdominal catastrophe or systemic toxicity required either immediate or eventual surgery. The overall mortality rate among the 19 patients was only 11%. The present literature review has shown that the f inding of PVG associated with Crohn’ s disease does not always mandate surgical intervention. It is the clinical features and the related complications that ultimately determine the treatment approaches. The overall outcome of PVG associated with Crohn’s disease has been favourable.

关键词： Portal venous gas Portal vein thrombosis Pylephlebitis Crohn's disease Chinese

Lack of evidence of active lytic replication of Epstein-Barr and cytomegaloviruses in patients with systemic lupus erythematosus

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Chinese Medical Journal 1998年第7期 84-89页

作者： lau Chak Sing, Yuen Yung, Chan Hung and Wong raymond Woon Sing

Objectives Systemic lupus erythematosus (SLE) is a multifactorial disease. Environmental factors such as viral infection(s) have been proposed as pathaetiological factors. There are particular interests in studying lymphotropic viruses such as the Epstein-Barr virus (EBV) and cytomegalovirus (CMV). Although previous case reports and in vitro studies suggested that they may have a role, there is no direct evidence that onset of SLE or disease exacerbation is associated with active infection by these viruses. Using the very sensitive polymerase chain reaction (PCR) technique, we tried to find out evidence of active replication of these viruses in patients with SLE. Methods Thirty-four patients with SLE were compared with matched normal controls. Eleven patients were newly diagnosed to have SLE and 18 of the 34 patients had active disease as determined by a SLE Disease Activity Index (SLEDAI) score of ≥10 at the time of study. Results Our results showed no evidence of active replication or reactivation of EBV in the leucocytes amongst the newly diagnosed SLE patients, established SLE patients, patients with SLEDAI ≥10, patients with SLEDAI <10, and control subjects. There was no evidence of CMV infection in any of the subjects studied. The IgG and IgA responses against EBV early antigen (EA) and viral capsid antigen (VCA) were also studied. The IgG and IgA responses against VCA of EBV were increased in patients with SLE when compared with controls. However, there were no differences in these responses among different subgroups of patients. The mechanism of these responses was not apparent but may represent non-specific hyperimmune responses in these patients. There were no differences in the titre of IgG and IgA against EBV EA between the patient groups and *** There is no direct evidence that either EBV or CMV plays a direct role in the onset and/or exacerbation of SLE.

关键词： Lack of evidence of active lytic replication of Epstein-Barr and cytomegaloviruses in patients with systemic lupus erythematosus

Lycium barbarum polysaccharides promotes in vivo proliferation of adult rat retinal progenitor cells

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Neural Regeneration Research 2015年第12期10卷 1976-1981页

作者： Hua Wang Benson Wui-Man lau Ning-li Wang Si-ying Wang Qing-jun Lu raymond Chuen-Chung Chang Kwok-fai So Beijing Tongren Eye Center Beijing Tongren HospitalCapital Medical University Beijing Ophthalmology & Visual Sciences Key Laboratory Department of Rehabilitation Science The Hong Kong Polytechnic University Department of Anatomy Li Ka Shing Faculty of MedicineThe University of Hong KongPokfulam The State Key Laboratory of Brain and Cognitive Sciences The University of Hong Kong Research Centre of Heart BrainHormone and Healthy AgingFaculty of MedicineThe University of Hong Kong Department of Ophthalmology Li Ka Shing Faculty of MedicineThe University of Hong KongPokfulam GMH Institute of Central Nervous System Regeneration Jinan University

Lycium barbarum is a widely used Chinese herbal medicine prescription for protection of optic ***,it remains unclear regarding the effects of Lycium barbarum polysaccharides,the main component of Lycium barbarum,on in vivo proliferation of adult ciliary body *** this study,adult rats were intragastrically administered low-and high-dose Lycium barbarum polysaccharides（1 and 10 mg/kg）for 35 days and those intragastrically administered phosphate buffered saline served as *** number of Ki-67-positive cells in rat ciliary body in the Lycium barbarum polysaccharides groups,in particular low-dose Lycium barbarum polysaccharides group,was significantly greater than that in the phosphate buffered saline ***-67-positive rat ciliary body cells expressed nestin but they did not express glial fibrillary acidic *** findings suggest that Lycium barbarum polysaccharides can promote the proliferation of adult rat retinal progenitor cells and the proliferated cells present with neuronal phenotype.

关键词： nerve regeneration traditional Chinese medicine Lycium barbarum polysaccharides Lycium barbarum (wolJberry) retinal disease neurogenesis adult neural regeneration

A Cooperative Autonomous Mechatronic System for Fault Tolerant Control of Material Handling Operations

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A Cooperative Autonomous Mechatronic System for Fault Tolera...

Factors Affecting Mesenchymal Stromal Cells Yield from Bone Marrow Aspiration

第11届粤港机械电子工程技术与应用研讨会

作者： raymond C.M.Chan Henry Y.K.lau Department of Industrial and manufacturing Systems Engineering The University of Hong Kong Pokfulam Road Hong KongPRC

＜正＞Sustainable control of a cooperative autonomous mechatronic system is a challenging undertaking and it is one of the focuses which many researchers have been working on for *** this paper,we introduce the design of an immune-inspired decentralized sustainability control methodology for cooperative autonomous mechatronic system such as multi-agent systems （MAS） to optimize the overall performance in terns of longevity through the trade-off between maintenance activity and task *** resulting system will have favorable characteristics of good fault tolerant as well as task achievement.A design of a multi-robot system that is amenable for the experimentation of the proposed methodology is presented together with a simulation platform for investigating its performance.

关键词： multi-agent system artificial immune systems robotic control

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Chinese Journal of Cancer Research 2011年第1期23卷 43-48页

作者： Jing Li Wilfred Hing-Sang Wong Shing Chan James Chor-San Chim Kenneth Man-Chee Cheung Tsz-Leung Lee Wing-Yan Au Shau-Yin Ha Albert Kwok-Wei Lie Yu-Lung lau raymond Hin-Suen Liang Godfrey Chi-Fung Chan China Oxford Centre for International Health Research Cardiovascular Institute ＆ Fuwai HospitalChinese Academy of Medical Sciences ＆ Peking Union Medical CollegeBeijing 100037China Department of Paediatrics and Adolescent Medicine Department of Medicine Department of Orthopaedics ＆Traumatology the University of Hong KongHKSARChina

Objective：This study was to investigate the variables in bone marrow harvesting procedure and individual donor factors which can potentially affect the yield of mesenchymal stromal cells（MSC）.Methods：We determined the yield of MSC from bone marrow under different clinical conditions by comparing the MSC colony numbers from：（1） donors of different ages;（2） healthy donors and patients with leukemia;（3） bone marrow aspirated at different time points during marrow harvesting;（4） bone marrow harvested by different ***：During the process of harvesting,the number of MSC significantly decreased with increase number of aspiration,from 675/ml at the initial decreased to 60/ml after 100 ml bone marrow aspirated,and 50/ml after 200 ml bone marrow *** number of MSC retrieved from leukemia patients（99/ml bone marrow） was significantly lower than that of healthy donors（708/ml bone marrow）.However,there was no significant difference in growth *** was no significant age-related difference of MSC yielded from donors 55 *** there was no significant difference in MSC number between the samples from single end-holed needle and those from multiple-side-hole ***：The optimal bone marrow samples for MSC collection should be obtained earlier in the process of harvesting *** marrow from donors 55 years was equally good as MSC *** autologous MSC from leukemia patients can be utilized for in-vitro MSC expansion.

关键词： Mesenchymal stromal cell CFU-F Bone marrow aspiration Leukemia