Performance Enhancement of XML Parsing Using Regression and Parallelism

The Extensible Markup Language(XML)files,widely used for storing and exchanging information on the web require efficient parsing mechanisms to improve the performance of the applications.With the existing Document Object Model(DOM)based parsing,the performance degrades due to sequential processing and large memory requirements,thereby requiring an efficient XML parser to mitigate these issues.In this paper,we propose a Parallel XML Tree Generator(PXTG)algorithm for accelerating the parsing of XML files and a Regression-based XML Parsing Framework(RXPF)that analyzes and predicts performance through profiling,regression,and code generation for efficient parsing.The PXTG algorithm is based on dividing the XML file into n parts and producing n trees in parallel.The profiling phase of the RXPF framework produces a dataset by measuring the performance of various parsing models including StAX,SAX,DOM,JDOM,and PXTG on different cores by using multiple file sizes.The regression phase produces the prediction model,based on which the final code for efficient parsing of XML files is produced through the code generation phase.The RXPF framework has shown a significant improvement in performance varying from 9.54%to 32.34%over other existing models used for parsing XML files.

Genetic and Correlation Analysis of Grain Characters in Three-line Hybrid Rice

Abst[Objective] This study was to understand the genetic dynamics of three-line hybrid rice, and explore the respective effect of sterile line and restoring line on grain characters of hybrid rica. [Method] Four three-line stedle lines and 27 restoring lines（cultivars） commonly culti- vated in Central China region were regarded as expadmental materials to conduct 4 x27NCII cross design, and the grain characters of three-line hybrid rico were analyzed at genetic and correlation levels. [ Result] Four characters of grain length, grain width, 1 000-grain weight and length- width ratio play the leading role in additive gene effect; these four characters were simultaneously influenced by male parent and female parent, but the effect from male parent was relatively larger. The grain length, grain width, 1 000-grain weight and length-width ratio all have high brood hedtabUities（ respectively 99.65%, 98.31%, 95.27% and 98.81% ）. Correlation analysis showed that grain length was positively correlated with 1 000-grain weight and length-width ratio at extremely significant level; 1 000-grain weight was positively correlated with grain length and length- width ratio at extremely significant level, and was insignificantly correlated with grain width; grain width was negatively correlated with grain length and length-width ratio at extremely significant level. Path analysis showed that the direct path coefficients of grain length, grain width and 1 0（30- grain weight to length-width ratio were 0.624 6, -0.555 9 and -0.015 8, respectively. [ Conclusion] This study systematically analyzed the effects of stedle line and restoring line on grain characters of hybrid rice, which provided theoretical basis for breeding high quality and yield hy- brid dce.

Reproduction of the Three-line Genic Male Sterile Line Parent Mian 7MB-1 （Brasscia Napus L.） and Seed Production of F1 Based on Somatic Tissue Culture

[Objective] The aim was to study the reproduction of the three-line genic male sterile （GMS） lineparent Mian7MB-1 （B. NapusL.） and the seed production of F1 through somatic tissue culture. [Methed] Through hybridization, a new breeding material Mian 7MB-1 in three-line genic temporary maintainer line propagated by tissue culture was used to improve the sterile plant rate of rapeseed in dual-purpose recessive GMS line, such as Mian 7AB type, S45AB type, and etc. And then the variety comparative test was performed. [Result] In order to avoid some fertility restoration phenomena occurring during the process of self-reproduction, Mian 7AB was propagated in bulk with somatic tissue culture of temporary maintainer line plant stem. The propagated temporary maintainer line seedlings were applied to the breeding and seed production of net room male sterile line parent, promoting the sterile plant rate of the male sterile line parent to 91.7% -93.5%. The male sterile line parents per hectare were enough for the seed production of hybrid F1 in 7 500 -15 000 hm^2. [ Conclusion ] Compared with the original dual-purpose GMS line, the seed production ultilizing male sterile line with high sterile plant rate greatly reduced the labor, significantly improved the seed yield, ensuring the seed quality and forming a perfect breeding and seed production system.

Technical Specification for Producing Hybrid Pepper Seed Using Three-line Male Sterility

This paper described the whole process of three line hybrid pepper seed production in detail, including requirement of the seed production base, parent culti- vation, field management, and specified the key operation techniques in seed pro- duction, such as parental impurity removal to preserve pure state, pollen collection, pollination and seed collecting essentials. This specification is of guiding significance for the production of hybrid pepper seed and ensuring the purity of hybrid pepper seed.

从功能和认知的视角看Parallelism

从功能解释语言现象是人类认知和交际的普通模式。普通模式的建立是作为对语言进行功能解释的前提 ,也是人类认知世界和传递信息的哲学抽象。我们可以从功能和认知的视角 。

“Parallelism”与“排比”辨异

英语 Parallelism与汉语“排比”长期以来被误为等值术语 ;1。其实 ,两者之间虽有相似之处 ,但明显的区别仍然不可忽视 ,本文拟从四个方面对此加以对比论证。一、英语 Parallelism既是修辞术语 ,又是语法术语 ;而汉语“排比”只是修辞术语。二、英语“平行项”既可以是三个或三个以上 ,也可以是两个 ;而汉语“排比项”只可以是三个或三个以上。三、英语 Parallelism既可以是并列结构 ,也可以是从属结构 ;而汉语“排比”却只能是并列结构。四、较之英语 Parallelism ,汉语“排比”更加讲究形式上的对称。

Parallelism、antithesis与排比、对偶

Parallelism与antithesis是英语中广泛使用的修辞手段。Parallelism常译为平行式平行结构 ,由两个或两个以上结构完全相同或非常类似的句子构成。并且句子或句子之间的联系由于语义上的一致和句法关系的相关得到加强。Antithesis意味相关、相对 ,是把相反的词、短语或从句用平行或对称的结构排列起来 ,以表达相反或相对的意思 ,使两层意思互相对照 ,达到加强语气的目的。Parallelism及antithesis与汉语的排比、对偶有相似之处 。

英语Parallelism修辞格

英语Parallelism译成汉语时分别为“对偶”、“排比”或“排偶” ,因为它在文中起的修辞作用不同 ,有时它相当于对偶的修辞方法 ,有时它又相当排比修辞方法。它的格式除在句法结构上相对外 ,有时也在音律、韵律、语法。

论Parallelism的形式及功能

本文从形式及功能两个方面对英语ｐａｒａｌｌｅｌｉｓｍ进行了较为深入的探讨，并将其定义为：将同一词语并列重复，或将结构相同或相似、语义相关（相同、相似、互补或相反）、语气一致的词、词组、分句、句子或段落并列使用的一种修辞手段，同时指出，Ｐａｒａｌｌｅｌｉｓｍ不仅具有突出语义、增强韵律的功能，而且具有很强的语篇功能。

浅析“Parallelism”在布什就职演说中的运用

在对修辞与演讲关系简要分析的基础上,文章通过对小布什总统连任就职演说辞中排偶的大量运用的分析,揭示修辞在演讲中的巨大作用和排偶的运用给演讲者带来的恢弘气势、清晰的说理与强大的感召力,以增强读者对演说辞的深刻理解。

Parallelism的结构特征及其语义特点

文章从修辞和语法的角度,探讨了Parallelism的定义,并与汉语中的"排比"修辞格进行了比较。与此同时,文章还通过大量的例句,分析了Parallelism的结构特征及其所具有的语义特点。

功能对等理论指导下Parallelism的翻译——以The Road Less Traveled为例

Parallelism在英语中具有修辞和语法双重功能。在英汉翻译对比研究中,学术界关注较多的是它与中文排比的构成差异及修辞功用,对它的语法功能研究较少。实践证明,英汉排比结构的对等转译不仅有助于保留源文本的语言特色和功能,还可以帮助译文读者更好地把握原文结构,明了行文思路。Parallelism的修辞功能和语法功能同等重要,都应引起译界的足够重视。本文在功能对等理论的指导下,以美国作家M·斯科特·派克的心理学著作——The Road Less Traveled中的排比句的翻译为例,探讨如何通过直译法、转译法、分句法、逆序法、增词法和减词法来提高原文读者和译文读者反应的相似性,实现功能对等目的。

Parallelism和排比的话语特征赏析

英语Parallelism和汉语排比是相类似的修辞手段,二者有相同或相似的话语特征,即结构匀称,衔接流畅,层层排叠,使人读后得到强烈的感染,获得韵律美和语势美的感受。拟以散文、诗歌、演说辞为实例,分析语篇结构和话语语势这两种修辞格的话语特征。

Parallelism修辞格探微

Parallelism意为“平行结构”,即将结构相同或相似、意义并重、语气一致的语言成分并行排列的一种修辞手法。它与汉语“排比”颇为相似,但不等同。从平行项数来看,它可以有两项,也可以有三项或三项以上,通常以二项或三项并行最为常见;就构成格式而言,它有单层次格式和多层次格式两种。

Frequency-domain elastic full-waveform multiscale inversion method based on dual-level parallelism

The complexity of an elastic wavefield increases the nonlinearity of inversion, To some extent, multiscale inversion decreases the nonlinearity of inversion and prevents it from falling into local extremes. A multiscale strategy based on the simultaneous use of frequency groups and layer stripping method based on damped wave field improves the stability of inversion. A dual-level parallel algorithm is then used to decrease the computational cost and improve practicability. The seismic wave modeling of a single frequency and inversion in a frequency group are computed in parallel by multiple nodes based on multifrontal massively parallel sparse direct solver and MPI. Numerical tests using an overthrust model show that the proposed inversion algorithm can effectively improve the stability and accuracy of inversion by selecting the appropriate inversion frequency and damping factor in low- frequency seismic data.

Parallelism之分类、特征、功能及应用

一般来说,写文章都离不开修辞(Figure ofspeech),Parallelism(平行结构,又称排比结构)是英语修辞上的一种写作技巧,即用类似的语法形式来表达类似的概念。具体地说,平行结构要求:当—个句子的某些部分并列使用或由关联词连接时,句子的这些部分必保持相同的语法结构。