[目的/意义]社交媒体用户已逐渐由主动、积极地使用转向被动、消极地使用,传统的信息系统持续使用理论已不足以准确地刻画社交媒体等一类享乐型信息系统用户的负面情绪与消极使用行为,通过对相关文献综述,以期为未来研究提供理论基础和...[目的/意义]社交媒体用户已逐渐由主动、积极地使用转向被动、消极地使用,传统的信息系统持续使用理论已不足以准确地刻画社交媒体等一类享乐型信息系统用户的负面情绪与消极使用行为,通过对相关文献综述,以期为未来研究提供理论基础和方法借鉴。[方法/过程]从Elsevier和Web of Science数据库选出相关的英文研究文献69篇;从CNKI数据库检索出45篇中文文献。对社交媒体负面情绪与消极行为进行细分,由此梳理社交媒体用户的倦怠、焦虑等负面情绪和隐藏、回避、忽略、退出等细分的消极行为的研究脉络,借鉴组织行为学、社会学、营销学、医学等领域对情绪和行为的研究成果,分析现有研究的不足,并对未来研究方向进行展望。[结果/结论]国内外对于社交媒体用户负面情绪和消极使用行为的研究尚处于起步阶段,二者间的内在联系还未引起学者足够的重视,同时,研究方法也比较单一。因此,这一主题值得学者从多种视角深入研究。展开更多
Comprehensive study on land-use change of spatial pattern and temporal process is the key component in land use/land cover changes (LUCC) study nowadays. According to the theories and methods of Geo-information Tupu (...Comprehensive study on land-use change of spatial pattern and temporal process is the key component in land use/land cover changes (LUCC) study nowadays. According to the theories and methods of Geo-information Tupu (Carto-methodology in Geo-information, CMGI) for geospatial and temporal analysis and integration models of spatial pattern and temporal processes in GIS, the paper puts forward Tupu methodology of land-use change and names the basic synthetic unit of spatial-temporal information Tupu unit. Tupu unit is the synthetic unit for geospatial-temporal analysis, which is synthesized by “space·attribute·process”features and composed of relatively homogeneous geographic unit and temporal unit. Based on the spatial features of 4 stages of land-use change in 1956, 1984, 1991, and 1996, a series of Tupu on land-use change in the Yellow River Delta (YRD) are created and studied in the paper, which includes 3 temporal units of spatial-temporal Tupu, process Tupu of land-use changes during the last 40 years, and reconstructions of a series of “arisen”Tupu, “arisen”process Tupu and pattern Tupu on land-use changes in the last 40 years by remapping tables of a reclassifying system. There are 3 methods of Tupu analysis on land-use change that are used to disclose change processes of land-use spatial conversion in YRD, such as spatial query and statistics, order of Tupu units by area and land-use conversion matrixes. In order to reveal the spatial pattern of land-use change processes, we analyze spatial-temporal changes of each Tupu above in various temporal units and spatial difference of pattern Tupu in the last 40 years by dynamic Tupu units. Tupu analysis on regional land-use is a promising trial on the comprehensive research of “spatial pattern of dynamic process”and “temporal process of spatial pattern”in LUCC research. The geo-information Tupu methodology would be a powerful and efficient tool on integrated studies of spatial pattern and temporal process in geoscience.展开更多
文摘[目的/意义]社交媒体用户已逐渐由主动、积极地使用转向被动、消极地使用,传统的信息系统持续使用理论已不足以准确地刻画社交媒体等一类享乐型信息系统用户的负面情绪与消极使用行为,通过对相关文献综述,以期为未来研究提供理论基础和方法借鉴。[方法/过程]从Elsevier和Web of Science数据库选出相关的英文研究文献69篇;从CNKI数据库检索出45篇中文文献。对社交媒体负面情绪与消极行为进行细分,由此梳理社交媒体用户的倦怠、焦虑等负面情绪和隐藏、回避、忽略、退出等细分的消极行为的研究脉络,借鉴组织行为学、社会学、营销学、医学等领域对情绪和行为的研究成果,分析现有研究的不足,并对未来研究方向进行展望。[结果/结论]国内外对于社交媒体用户负面情绪和消极使用行为的研究尚处于起步阶段,二者间的内在联系还未引起学者足够的重视,同时,研究方法也比较单一。因此,这一主题值得学者从多种视角深入研究。
基金supported by the National Natural Science Foundation of China(40371093)the Special Funds for Major State Basic Research Project(G20000779,2002CB412408)+2 种基金Opening Fund projects of State Key Laboratory of Remote Sensing Science in the Institute of Remote Sensing Applications(SK040006)Opening Fund projects of State Key Laboratory of Estuarine and Coastal Research of East China Normal University,China Postdoctoral Science Foundationthe Project from'863'Marine Monitor of Hi-Tech Research and Development Program of China(2001AA633010).
文摘Comprehensive study on land-use change of spatial pattern and temporal process is the key component in land use/land cover changes (LUCC) study nowadays. According to the theories and methods of Geo-information Tupu (Carto-methodology in Geo-information, CMGI) for geospatial and temporal analysis and integration models of spatial pattern and temporal processes in GIS, the paper puts forward Tupu methodology of land-use change and names the basic synthetic unit of spatial-temporal information Tupu unit. Tupu unit is the synthetic unit for geospatial-temporal analysis, which is synthesized by “space·attribute·process”features and composed of relatively homogeneous geographic unit and temporal unit. Based on the spatial features of 4 stages of land-use change in 1956, 1984, 1991, and 1996, a series of Tupu on land-use change in the Yellow River Delta (YRD) are created and studied in the paper, which includes 3 temporal units of spatial-temporal Tupu, process Tupu of land-use changes during the last 40 years, and reconstructions of a series of “arisen”Tupu, “arisen”process Tupu and pattern Tupu on land-use changes in the last 40 years by remapping tables of a reclassifying system. There are 3 methods of Tupu analysis on land-use change that are used to disclose change processes of land-use spatial conversion in YRD, such as spatial query and statistics, order of Tupu units by area and land-use conversion matrixes. In order to reveal the spatial pattern of land-use change processes, we analyze spatial-temporal changes of each Tupu above in various temporal units and spatial difference of pattern Tupu in the last 40 years by dynamic Tupu units. Tupu analysis on regional land-use is a promising trial on the comprehensive research of “spatial pattern of dynamic process”and “temporal process of spatial pattern”in LUCC research. The geo-information Tupu methodology would be a powerful and efficient tool on integrated studies of spatial pattern and temporal process in geoscience.
