Semantic Annotation using Horizontal and Vertical Contexts

Abstract. This paper addresses the issue of semantic annotation using horizontal and vertical contexts. Semantic annotation is a task of annotating web pages with ontological information. Information on a web page is usually two-dimensionally laid out, previous semantic annotation methods that view a web page as an ’object ’ sequence has limitations. In this paper, to better incorporate the two-dimensional contexts, semantic annotation is formalized as a problem of block detection and text annotation. Block detection is aimed at detecting the text block by making use of context in one dimension and text annotation is aimed at detecting the ‘targeted instance ’ in the identified blocks using the other dimensional context. A two-stage method for semantic annotation using machine learning has been proposed. Experimental results indicate that the proposed method can significantly outperform the baseline method as well as the sequence-based method for semantic annotation. 1

A New Approach to Personal Network Search based on Information Extraction. Demo paper

Abstract. In this paper, we propose a new approach based on information extraction for constructing a personal network by discovering and identifying personal information from the web. We have developed a system called ‘Personal Network Search’. The paper describes the architecture and main features of the system. 1

General Terms

In this paper, we present the design and implementation of our expertise oriented search system, EO

All-Optical Switching Based on Sub-Bandgap Photoactivation of Charge Trapping in Metal Halide Perovskites

Controllable optical properties are crucial for the application of light-emitting materials in optical devices. In this work, controllable photoluminescence in metal halide perovskite crystals is realized via photoactivation of their defects. It is found that under continuous excitation, the photoluminescence intensity of a CH3NH3PbBr3 crystal can be fully controlled by sub-bandgap energy photon illumination. Such optically controllable emission behavior is rather general as it is observed also in CsPbBr3 and other perovskite materials. The switching mechanism is assigned to reversible light-induced activation/deactivation of nonradiative recombination centers, the presence of which relates to an excess of Pb during perovskite synthesis. Given the success of perovskites in photovoltaics and optoelectronics, it is believed that the discovery of green luminescence controlled by red illumination will extend the application scope of perovskites toward optical devices and intelligent control

Association between <i>LRH-1</i> single nucleotide polymorphisms and unexplained recurrent spontaneous abortion in Chinese Han couples

<p>To explore the genetic relationships between <i>LRH-1</i> (rs2816948), <i>CYP19</i> (rs727479 and rs700518), and <i>P450scc</i> (rs4077582) as a potential mechanism behind unexplained recurrent spontaneous abortions in a Chinese Han population. A case-control study was used and featured two groups: Patients with unexplained recurrent miscarriage (<i>n</i> = 82, abortion group) and those who voluntary surrendered of a normal early pregnancy (<i>n</i> = 97, control group). Abortion villi samples were obtained from all patients. Genomic DNA was later extracted and sequenced, after which statistical analyses performed to assess the relationship between single nucleotide polymorphisms and unexplained recurrent spontaneous abortions. There were significant differences in the genotypic and allelic distribution (<i>p</i> < .05) for <i>CYP19</i> (rs727479) between the abortion and the control groups. There were no significant differences in the genotypic or allelic distributions (<i>p</i> > .05) for either the <i>LRH-1</i> (rs2816948) or <i>CYP19</i> (rs700518). There were also significant genotypic differences (<i>p</i> < .05) for <i>P450scc</i> (rs4077582), but no significant differences for its allelic distribution (<i>p</i> > .05). There was a significant correlation between the occurrence of unexplained recurrent spontaneous abortion and <i>CYP19</i> (rs727479) single nucleotide polymorphisms.</p> <p>本研究将探讨LRH-1（rs2816948）, CYP19（rs727479和rs700518）和P450scc（rs4077582）作为中国汉族人群原因不明的复发性自然流产的潜在机制之间的遗传关系。采用病例对照研究, 分为两组：原因不明的复发性流产患者（n = 82, 流产组）和自愿放弃正常早孕的患者（n = 97, 对照组）。从所有患者获得流产绒毛样品, 随后提取基因组DNA并测序, 之后进行统计分析以评估单核苷酸多态性与不明原因的复发性自然流产之间的关系。在流产和对照组之间, CYP19（rs727479）的基因型和等位基因分布（p <.05）存在显著差异。对于LRH-1（rs2816948）或CYP19（rs700518）, 基因型或等位基因分布（p> .05）没有显著差异。 P450scc（rs4077582）也存在显著的基因型差异（p <.05）, 但其等位基因分布没有显著差异（p> .05）。 不明原因复发性自然流产的发生与CYP19（rs727479）单核苷酸多态性之间存在显著相关性。</p

Media 3: Multiple ray cluster rendering for interactive integral imaging system

Originally published in Optics Express on 22 April 2013 (oe-21-8-10070

Media 1: Multiple ray cluster rendering for interactive integral imaging system

Originally published in Optics Express on 22 April 2013 (oe-21-8-10070