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951.
Automatic Chinese text summarization for dialogue style is a relatively new research area. In this paper, Latent Semantic Analysis (LSA) is first used to extract semantic knowledge from a given document, all question paragraphs are identified, an automatic text segmentation approach analogous to Text'filing is exploited to improve the precision of correlating question paragraphs and answer paragraphs, and finally some "important" sentences are extracted from the generic content and the question-answer pairs to generate a complete summary. Experimental results showed that our approach is highly efficient and improves significantly the coherence of the summary while not compromising informativeness. 相似文献
952.
Manuel Toral Ibañez Margarita Caru Miguel A. Herrera Luis Gonzalez Luis M. Martin Jorge Miranda Rafael M. Navarro-Cerrillo 《Journal of Zhejiang University. Science. B》2009,10(2):112-119
A protocol of polymerase chain reaction-random amplified polymorphic DNAs (PCR-RAPDs) was established to analyse the gene
diversity and genotype identification for clones of Sequoia sempervirens (D. Don) Endl. in Chile. Ten (out of 34) clones from introduction trial located in Voipir-Villarrica, Chile, were studied.
The PCR-RAPDs technique and a modified hexadecyltrimethylammonium bromide (CTAB) protocol were used for genomic DNA extraction.
The PCR tests were carried out employing 10-mer random primers. The amplification products were detected by electrophoresis
in agarose gels. Forty nine polymorphic bands were obtained with the selected primers (BG04, BF07, BF12, BF13, and BF14) and
were ordered according to their molecular size. The genetic similarity between samples was calculated by the Jaccard index
and a dendrogram was constructed using a cluster analysis of unweighted pair group method using arithmetic averages (UPGMA).
Of the primers tested, 5 (out of 60) RAPD primers were selected for their reproducibility and high polymorphism. A total of
49 polymorphic RAPD bands were detected out of 252 bands. The genetic similarity analysis demonstrates an extensive genetic
variability between the tested clones and the dendrogram depicts the genetic relationships among the clones, suggesting a
geographic relationship. The results indicate that the RAPD markers permitted the identification of the assayed clones, although
they are derived from the same geographic origin.
Project (No. CONICYT-FONDEF PROYECT D01 I 1008) supported by the National Commission of Science and Research of Chile 相似文献
953.
徐国明 《唐山师范学院学报》2014,(6):27-30
(食)字由“(亼)”和“ (皀)”两部分构成。当我们结合“(食)”→“(即)”→“(饗)”→“(既)”这一系相连贯的古人用食动作,或者“”→“(飤)”→“”这一过程分析时,就会明确食字所从的“(亼)”象盖形,本义为盖子。食字所从的“皀”字甲骨文作:,其象:食器中堆满饭(小米饭)的形状(上部的数点表示饭散发的热气或香气)。食字由这两部分构成,但又不是如《说文》及《注》所认为的:食是会意字,意思由“亼”与“皀”两字所会。实际上(食)为象形字,象:食器中堆满饭并盖上盖子之形;它与(皀)字的意思相同都指:食器中堆满饭,二者仅有的不同在于(食)有盖子(皀)没有盖子。这是食字的本义,由这个意思可引出仅指食器中的饭食之食物,食物是供人吃的,由此又可指食用之食,如甲文(食麦)。在吃食的过程中食器中堆积如小山般的饭食会逐渐缺少,这就有了缺损义,由此又可指日月食,如(月有食)。吃食在一个时间段进行,由此又可指时间,如(大食)(小食)。 相似文献
954.
知识管理态势下的图书情报学变革与发展 总被引:5,自引:3,他引:5
介绍知识管理的各种概念,从研究对象、研究重点、处理方式、组织地位、所起作用等5个方面对图书情报学和知识管理两者之间的差异进行比较;从研究对象、研究内容、研究方法、技术研究4个方面分析知识管理给图书情报学带来的变革;运用SWOT分析方法对图书情报学的学科竞争力进行评估,探讨知识管理态势下图书情报学的发展策略,并从学科建设和人才培养两个方面提出相应的学科发展建议。 相似文献
955.
《国际创新研究学报(英文)》2021,5(4):175-189
The digital revolution has shaped the modern world in unprecedented ways. Moreover, the COVID-19 pandemic has highlighted the value of digital technologies. As the health crisis’ effect rippled through economic, political, and social structures worldwide, it also accelerated the adoption of digital tools to pool expertise, ideas, and capacities for generating solutions to the pandemic’s short- and long-term implications. One of the areas where major challenges have arisen is employment.In the whole panorama of digital social innovation in Spain, we find an experience that can be described as outstanding and that links employment and digitalization. However, despite being highly successful, there is hardly any academic literature on this experience. The Connect Employment Shuttles will be the subject of specific in-depth analysis in this article. This is a socially innovative program that has been developed since 2020 in collaboration with the Santa María la Real Foundation. The Connect Employment Shuttles are an existing model specialization, the Employment Shuttles, but applied in the field of digitalization. In this article, we present the origin of the Employment Shuttles and the differences between them and other labor market integration initiatives, their constituent elements, and the social impact they exert.The research question of our study is whether this innovative mechanism combining employment and digitalization is valid and reliable. The answer is particularly relevant for private and public entities interested in implementing effective measures against unemployment, especially in vulnerable groups. The main contribution of this study is the systematized presentation of the experience of the Connect Employment Shuttles and its results so far, being the major limitation is the scarcity and dispersion of information sources. 相似文献
956.
定义了广义基本有限生成的TS1-模.主要证明了广义基本有限生成的TS1-模的广义基本有限生成的type子模是广义基本有限生成的TS1-模;M是广义基本有限生成的TS1-模当且仅当对M的任意广义基本有限生成子模N,存在KIM,使得N≤geK. 相似文献
957.
958.
In the economic order quantity (EOQ) model, the decision maker has vague information about holding cost, ordering cost and market demand. With these uncertainties characterized as fuzzy variables, a new formula is developed by analyzing the fuzzy total cost. By comparing with other four EOQ formulas, i.e., using the crisp numbers with the highest membership values in classic EOQ formula, using the expected values of fuzzy parameters in classic EOQ formula, using the fuzzy variables in classic EOQ formula and then calculating the expected value, and calculat- ing EOQ by hybrid intelligent algorithm simulation, the effectiveness of this formula Js illustrated. 相似文献
959.
以马来酸酐(MAH)为接枝单体和过氧化二异丙苯(DCP)为引发剂制备了石油树脂接枝马来酸酐(PR-g-MAH),研究了DCP和MAH用量以及反应时间对石油树脂接枝率的影响,并将PR-g-MAH产物应用于LDPE/POE/LLDPE复合物中,制备了热熔胶,研究了PR-g-MAH用量对热熔胶粘结性能的影响。结果表明,MAH成功接枝到石油树脂上;当MAH用量为8%,DCP用量为2%,反应时间为2 h时,PR-g-MAH的接枝率最大,颜色也较浅;PR-g-MAH的用量为20%时,制备的热熔胶具有最高的剥离强度,达到110 N cm-1。 相似文献
960.
[目的/意义]论文回答的研究问题是:在新文科建设背景下,图书馆信息学与数据科学、数字人文与健康信息学等新文科交叉领域的关系发展的未来前景是什么?[方法/过程]论文从现有研究文献中图书馆信息学与数字人文、数据科学、健康信息学三个新文科交叉领域的关系类型出发,设计了民族志未来访谈,邀请三十四位国内图书馆信息学和情报学等学科的学者提炼这四个学科(领域)的核心竞争力,判断其相互间价值,并预测2030年最乐观、最悲观和最有可能的发展前景。[结果/结论]图书馆信息学与数字人文、与数据科学、与健康信息学在2030年更有可能出现的前景是并列有交集的关系,健康信息学相对更可能成为图书馆信息学的下位类,数据科学与图书馆信息学的关系相对更独立。 相似文献