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��[Purpose/significance] By using corpus-based sentiment analysis, opinion word polarity can be predicted in accordance with its context. The method is significant in applications oriented to specific-domains sentiment analysis tasks since it can improve the prediction accuracy.[Method/process] In the paper, context-oriented sentiment polarity identification for emotion expressions was investigated. A Pointwise Mutual Information(PMI) based algorithm was proposed to solve the problem. In terms of PMI, polarity of an emotion expression \"feature-opinion\" was inferred according to the co-occurrence of the expression with contextual opinion seed words. Furthermore, employing dependence relation analysis to detect sentimental reverse in context; with the modified PMI algorithm, we can predict polarity of emotion expressions in a sentence more accurately.[Result/conclusion] The results indicate, compared with the Lexicon-based method and the classical PMI, the modified method performs better. With it, opinion-words unlisted in lexicons can be identified, and context-specific sentimental orientation of an expression can be detected precisely as well. Modifying the macro F1 value to 0.827 and 0.878 in cater-review corpus and electronic-product review corpus separately. The algorithm, supported by large-scale domain-specific corpus and based on statistics and dependency analysis, is efficient due to convenience for data acquisition, which make it easier be applied in other domain-specific sentimental analysis tasks.     

中国科学院沪区生物口图书情报队伍分析

通过对中国科学院沪区生命科学图书情报队伍的分析,认为现有人员结构难以适应业务发展的需要,提出应通过引进、培养研究生和加强在职教育,促进队伍建设     

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��[Purpose/significance] By means of the classification and circulation data of library collection, the paper finds the close correlation between reader characteristics and library collection circulation, establish the relationship model. And through model fitting and prediction, this study explores the implicit rule between reader and library circulation which provides technical and means support for the intelligent management of library.[Method/process] Firstly, this paper used clustering and correlation analysis techniques to extract the macroscopic observable characteristics of readers, constructed the direct and indirect mapping relationship between reader characteristics and book classification, and then constructed the regression model of the circulation of reader characteristics and classified books, and verified the validity of the model and optimized the goodness of fit of the model. According to the effective model, this paper explored the trend change of library circulation, and sum up the underlying rules of knowledge construction of the macroscopic characteristics of readers, as well as the impact on the circulation of books.[Result/conclusion] There are 3 classification characteristics of readers, namely, the professional learning direction representing the social role requirements of readers, the enrollment batch representing the interaction effect between readers and the number of readers, which can effectively fit and predict the book circulation. The prediction results show that the model has high accuracy and can be used as an effective tool to provide reliable technical support for library to develop knowledge service.     

加强学位论文的研究开发工作

在分析研究生学位论文的基础上,阐述开发研究生学位论文对于优化图书馆藏书建设的重要意义,并就如何解决现今学位论文开发研究工作中存在的问题提出了建议。     

冲出摇篮——走向社会——未来文献情报学

??The documentary information and science is now still neglected compared with the other vast kinds of scienres. There exists great limitation in the area regarding to the object of study,coverage of its utilization and science system. To some extent it is closed behind the door and one sidedness. The future information science as mentioned in the paper should be forged ahead outwardly in sis aspects. lt means its way out in the future is to face the wholc society.     

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��[Purpose/significance] In line with the national intellectual property strategic development, some university libraries have tried to develop intellectual property information services in recent years. Since the intellectual property information service breaks through the original information service, it is urgent to train a batch of librarians with corresponding service capabilities. In addition, as an important source of intellectual property, university library directors, researchers and students' intellectual property information literacy needs to be improved. Therefore, it is necessary to establish a complete and standardized training system for intellectual property information services in universities.[Method/process] This paper used literature research, expert interviews, questionnaires and other methods to conduct extensive research on four groups of universities, and built a multi-agent intellectual property information service training system. The training content has five modules:intellectual property awareness strength, intellectual property basic knowledge, intellectual property information retrieval, intellectual property information analysis and application, as well as intellectual property application process explanation and patent document writing. Among which basic knowledge, information retrieval, information analysis and application were key modules, which were divided into primary, medium and high levels. The modular course can be assembled to implement the training.[Result/conclusion] The training system has the advantages of completeness, operability and adaptability. It can meet the needs of multi-level and diversified intellectual property training in universities. Its effective implementation will improve the intellectual property information service capabilities and intellectual property information literacy.     

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��[Purpose/significance] This paper defines the hierarchical types and baselines of organizational climate of university libraries in China, provides a value judgment and reference basis for self-assessment of university library organizational climate.[Method/process] A nationwide survey of the library organizational climate was conducted, and 11 libraries were selected to take assessment. According to the current situation, the characteristics and development level of the participating libraries, the clustering analysis method was used to classify and define the baseline.[Result/conclusion] The organizational climate of university libraries in China can be divided into three types:neutral, stimulating and efficient.