Subjects: Library Science，Information Science >> Information Science submitted time 2023-04-01 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] With the developing of cultural heritage digitization and humanities computing paradigm, the demand of cultural heritage data resources from scholars in the field of humanities have increasingly highlighted when participating in digital humanities research. The semantic integration and interoperability of multi-source and heterogeneous cultural heritage information resources has become a key issue in the construction of digital humanities data infrastructure nowadays, and the effective method of entity semantic similarity calculation has became an important means to achieve this goal.[Method/process] Based on the analysis of the ontology model and data framework of Dunhuang Mural Thesaurus Linked Data, this paper proposed an entity semantic similarity calculation method based on the integration of multi granularity matching and weighted calculate, and selected "Feitian" related entities in the dataset as the experimental object to compare the effects of the method proposed in this paper with current methods base on attribute characteristic or edit distance in semantic similarity calculation.[Result/conclusion] The experimental results show that, compareing with the other methods, the entity semantic similarity calculation method based on multi-granularity matching can better adapt to the content and structural characteristics of Dunhuang Mural Thesaurus Linked Data, and has better performance in the accuracy of calculation. Thus this paper has introduced another feasible idea for promoting the data interconnection and knowledge sharing of heterogeneous human information resources under the background of digital humanities.
Subjects: Library Science，Information Science >> Information Science submitted time 2022-11-27 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/Significance] The purpose of this study is to investigate the influence of prior attitudes onusers’access to opposing information , especially the behavioral characteristics of selective exposure , selective under-standing, and selective recall. ( Method/Process] This study adopted the experimental method. Firstly, the prioraltitudes of the participants were understood through the pre-test questionnaire , and then the participants were provid.ed with articles of the same and opposite viewpoints. The participants freely chose the articles to read and thought aoud, and made decisions again after reading and displayed the reasons. After the experiment, the participants filleoin the post-est questionnare. [Result/Conclusion] Participants have selective exposure and selective recall, andprior attitude have a significant effect on selective exposure behaviors and recall after 1 day. On the basis of selectiveexposure , participants show four cognitive and understanding processes for information. There are 11 cognitive mechanisms , including " key item extraction" , " restatement , " semantic fit" and " eliminalion". In the theorelicasense , this study supplements the research results related to selective information behaviors and enriches the researchin the field of the information behavior. From the point of view of practical significance, it helps to promote usersmore objective cognition and scientific decision-making.
Subjects: Biology >> Zoology submitted time 2017-10-23 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在探讨玉米干酒糟及其可溶物（DDGS）有效能值估测模型中定标样品的选择原则。从23个玉米DDGS样品（定义为全样品库）中按酶水解物能值（EHGE）相差0.21 MJ/kg左右的梯度选择9个定标玉米DDGS样品，定义为选择性样品库；将剩余的14个玉米DDGS样品定义为非选择性样品库。然后，比较选择性样品库与非选择性样品库化学成分含量及变异的差异，以及通过全样品库和选择性样品库分别建立其化学成分对EHGE之间的回归模型，比较根据回归模型计算得到的非选择性样品库EHGE的差异。结果表明，选择性样品库和非选择性样品库的玉米DDGS在粗蛋白质（CP）、粗灰分（Ash）、粗脂肪（EE）、粗纤维（CF）、中性洗涤纤维（NDF）、酸性洗涤纤维（ADF）含量及EHGE平均值上均无显著性差异（P>0.05），CP、Ash、EE、CF、ADF、NDF含量及EHGE的变异方差上均无显著性差异（P0.05）。综上所述，在玉米DDGS有效能值的估测建模中，以EHGE作为定标样品的选择依据是可行的。
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究试验鸡不同季节、不同批次间内源总能的变异及其对饲料原料真代谢能值的影响。试验采用单因素完全随机设计，分春季、夏季和秋季3季共计12个批次测定鸡内源总能及其对饲料原料[玉米、玉米干酒糟（DDGS）、木薯干和木薯渣]真代谢能值的影响，每个批次设4个重复，每个重复3只鸡。将各季节内各批次内源总能的平均值作为该季节内源总能，并根据不同季节的内源总能分别计算其对4种饲料原料真代谢能值的影响。结果表明：1）12个测定批次间48 h内源总能差异显著（P0.05），因此，可将测定季节内各个批次间48 h内源总能数据合并，将其平均值作为该季48 h内源总能。2）对比3个季节间的48 h内源总能，秋季48 h内源总能（67.97 kJ/只）极显著低于春季（83.07 kJ/只）和夏季（79.90 kJ/只）（P0.05）。3）季节内48 h内源总能与48 h内源干物质排泄量呈极显著正相关（r≥0.91，P<0.01）。4）在玉米、玉米DDGS、木薯干及木薯渣4种饲料原料中，不同季节48 h内源总能的最大变化量分别占饲料总能排泄量的7.36%~8.38%、2.68%~2.94%、7.92%~10.86%和3.53%~3.96%，不同季节48 h内源总能的变异引起饲料原料真代谢能值的变化范围为0.28~0.36 kJ/g。由此可见，鸡内源总能在季节间存在一定的变异，但是该变异对饲料原料真代谢能值的计算并无显著影响。
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