The formation and preservation of longterm memories critically depend upon coordinated activity of neuronal circuits,intracellular signaling cascades and synaptic remodeling(Josselyn et al.,2015).These essential proce...The formation and preservation of longterm memories critically depend upon coordinated activity of neuronal circuits,intracellular signaling cascades and synaptic remodeling(Josselyn et al.,2015).These essential processes occur in specific cell populations known as the engram ensemble(Josselyn et al..展开更多
The evolution of terminology in a given field of science and technology is a good indicator of the context in which inventions originated and how concepts have evolved.This is the case of photogrammetry,remote sensing...The evolution of terminology in a given field of science and technology is a good indicator of the context in which inventions originated and how concepts have evolved.This is the case of photogrammetry,remote sensing and related methods,whose terminology evolved,first under the influence of the early inventors Laussedat and Meydenbauer,in French and German,respectively,and then in English and other languages as an international professional community developed.The development of space remote sensing and analytical photogrammetry led to the modification of old concepts and the renewal of terminology,and more recently,the advent of digital photography has blurred the boundaries between different fields and the meaning of the terms.This article proposes an analysis of the evolution of technical terms through the Google Ngram Viewer tool,which allows the visualization of the occurrence of terms in documents accessible on the web.Despite its biases,this tool allows an interpretation of the evolution of the terminology over a long period of time,as well as a comparison of the evolution observed in the different languages.In particular,it makes it possible to highlight the periods when these methods were very popular,as well as a recent decline in the use of classical terms such as photogrammetry and remote sensing in favor of a new vocabulary,due to the blurring of boundaries between disciplines and to the emergence of new solutions related to UAVs,computer vision,etc.,which have renewed the potential of classical methods.展开更多
文本自动校对是蒙古文信息处理核心技术之一,是基础研究和应用技术的有机融合。文本校对包含词典建设、词法分析等基础资源建设和底层技术研发,也包括针对具体需求的系统研发。由于蒙古文自身的特点,现有的有关文本校对或拼写检查方面...文本自动校对是蒙古文信息处理核心技术之一,是基础研究和应用技术的有机融合。文本校对包含词典建设、词法分析等基础资源建设和底层技术研发,也包括针对具体需求的系统研发。由于蒙古文自身的特点,现有的有关文本校对或拼写检查方面的技术不能满足蒙古文需求。本文在借鉴中文、英文、阿拉伯文、印度文等多种语言拼写检查技术的基础上,介绍了一种基于混合策略的蒙古文非词检查及纠错建议生成方法。在非词检查阶段融合正字法词典和相关语法规则,研制了蒙古文有限状态自动机,大大提高了词语识别速度和非词查准率。在纠错建议生成阶段,首先以3500万词文本语料为基础,构建蒙古文全词词典,并解决了动词纠错建议的生成问题。之后以上述文本语料为基础,构建了蒙古文Ngram模型,并将最小编辑距离和词根Bigram融合,研制了六种候选词排序算法。经试验,本文提出的基于字符相似度的编辑距离计算方法以及与Bigram值加权融合的排序算法表现最好,正确候选词排在第一位和前三位的准确率分别达到了92.01%和96.51%,并且已实现在商业化校对软件Mongolian Editor Version 6.0中。展开更多
文摘The formation and preservation of longterm memories critically depend upon coordinated activity of neuronal circuits,intracellular signaling cascades and synaptic remodeling(Josselyn et al.,2015).These essential processes occur in specific cell populations known as the engram ensemble(Josselyn et al..
文摘The evolution of terminology in a given field of science and technology is a good indicator of the context in which inventions originated and how concepts have evolved.This is the case of photogrammetry,remote sensing and related methods,whose terminology evolved,first under the influence of the early inventors Laussedat and Meydenbauer,in French and German,respectively,and then in English and other languages as an international professional community developed.The development of space remote sensing and analytical photogrammetry led to the modification of old concepts and the renewal of terminology,and more recently,the advent of digital photography has blurred the boundaries between different fields and the meaning of the terms.This article proposes an analysis of the evolution of technical terms through the Google Ngram Viewer tool,which allows the visualization of the occurrence of terms in documents accessible on the web.Despite its biases,this tool allows an interpretation of the evolution of the terminology over a long period of time,as well as a comparison of the evolution observed in the different languages.In particular,it makes it possible to highlight the periods when these methods were very popular,as well as a recent decline in the use of classical terms such as photogrammetry and remote sensing in favor of a new vocabulary,due to the blurring of boundaries between disciplines and to the emergence of new solutions related to UAVs,computer vision,etc.,which have renewed the potential of classical methods.
文摘文本自动校对是蒙古文信息处理核心技术之一,是基础研究和应用技术的有机融合。文本校对包含词典建设、词法分析等基础资源建设和底层技术研发,也包括针对具体需求的系统研发。由于蒙古文自身的特点,现有的有关文本校对或拼写检查方面的技术不能满足蒙古文需求。本文在借鉴中文、英文、阿拉伯文、印度文等多种语言拼写检查技术的基础上,介绍了一种基于混合策略的蒙古文非词检查及纠错建议生成方法。在非词检查阶段融合正字法词典和相关语法规则,研制了蒙古文有限状态自动机,大大提高了词语识别速度和非词查准率。在纠错建议生成阶段,首先以3500万词文本语料为基础,构建蒙古文全词词典,并解决了动词纠错建议的生成问题。之后以上述文本语料为基础,构建了蒙古文Ngram模型,并将最小编辑距离和词根Bigram融合,研制了六种候选词排序算法。经试验,本文提出的基于字符相似度的编辑距离计算方法以及与Bigram值加权融合的排序算法表现最好,正确候选词排在第一位和前三位的准确率分别达到了92.01%和96.51%,并且已实现在商业化校对软件Mongolian Editor Version 6.0中。
