Using lexical chains for keyword extraction

Keywords can be considered as condensed versions of documents and short forms of their summaries. In this paper, the problem of automatic extraction of keywords from documents is treated as a supervised learning task. A lexical chain holds a set of semantically related words of a text and it can be said that a lexical chain represents the semantic content of a portion of the text. Although lexical chains have been extensively used in text summarization, their usage for keyword extraction problem has not been fully investigated. In this paper, a keyword extraction technique that uses lexical chains is described, and encouraging results are obtained.     

歌唱中的心理境界与内心视象

就声乐作品的演唱而言 ,歌唱者在演唱状态中会形成一定的心理境界和内心视象 ,这是表现歌曲的主题内容和思想感情 ,表现声乐艺术美 ,塑造完美的艺术形象的基本心理条件。     

文化差异与英汉翻译

思维是人类所特有的，有其共性，也有其个性。传统思维对传统文化的影响，主要表现在思维才式与思维形象上。思维方式、思维形象的异同会造成语言文化差异，翻译时可采取思维方式的转换、思维形象的转换与移植来处理。     

Digital Signal Processing Based Real Time Vehicular Detection System

Traffic monitoring is of major importance for enforcing traffic management policies. To accomplish this task, the detection of vehicle can be achieved by exploiting image analysis techniques. In this paper, a solution is presented to obtain various traffic parameters through vehicular video detection system( VVDS). VVDS exploits the algorithm based on virtual loops to detect moving vehicle in real time. This algorithm uses the background differencing method, and vehicles can be detected through luminance difference of pixels between background image and current image. Furthermore a novel technology named as spatio-temporal image sequences analysis is applied to background differencing to improve detection accuracy. Then a hardware implementation of a digital signal processing (DSP) based board is described in detail and the board can simultaneously process fourchannel video from different cameras. The benefit of usage of DSP is that images of a roadway can be processed at frame rate due to DSP‘s high performance. In the end, VVDS is tested on realworld scenes and experiment results show that the system is both fast and robust to the surveillance of transportation.     

离心泵特性曲线测定中的Excel 2000的应用

简述了“离心泵特性曲线测定”中实验原理、实验装置和实验方法;重点探讨了 Excel 2000在化学工艺学实验数据处理中的应用。     

灵魂的安居工程--论郁达夫作品中母亲意象建构

郁达夫时母亲有一种复杂而矛盾的爱。童年时期的生命体验和成年后的命运遭际使他陷入生存困境和精神痛苦。现实中的郁达夫渴望拥有一种温馨的、理想的母爱，反映在其作品中，则是他创造了一个母亲意象世界，建构了灵魂的安居工程，从一而获得自我灵魂拯救。     

刻板印象与消费主义文化下的媒介女性形象——基于京、沪、赣等地问卷调查分析

刻板印象是人们社会活动中认识他人的角色图示,随着全媒体时代的到来,大众传媒成为了人们形成角色图式的重要途径之一,其所传播的观念和行为方式对受众有着内在的、深层次的、潜移默化的影响,在一定程度上强化或改变着受众的刻板印象。文章以"媒介女性形象"的实地调查问卷为主要分析文本,试图了解受众对当今媒介女性形象的认知状态,并探讨消费主义文化于媒介女性形象塑造过程中在受众心理的映射,以此彰显大众媒介在传播女性形象上的效果问题,为我国媒介改善女性刻板印象报道,塑造真实女性形象提供可行性策略。     

武夷岩茶产业的形象与效益

武夷岩茶产自于拥有多茶类的福建省,却能在福建众多名优茶中凸现出来,除了岩茶本身品质上佳外,很大一部分原因在于武夷岩茶拥有良好的形象。因而就要以形象塑造为视角,阐述武夷岩茶形象与效益的关系,以形象带动效益,以效益促进岩茶产业的发展。     

北岛早期的诗

北岛诗的“质地”是坚硬的,是“黑色”的。他的诗表现了强烈的否定意识,强烈的怀疑、批判精神。这种怀疑和批判,不只是针对所处的环境,而且也涉及人自身的分裂状况;这是北岛“深刻”的地方。在北岛的诗里,意象的使用十分自觉,意象在诗中,处于十分密集的状态,而且他使用的意象,也大多带有某种程度的象征性。     

论计算机图形图像软件应用

文章就当前中国计算机图形图像软件的应用进行论述,对他们的发展方向、利弊也进行了评述和分析.