结果：找到“Hara”相关内容675个，排序为按回复时间降序，搜索更多相关帖子请点击“高级”
全套汽车功能安全ISO26262工作模板-英文：FMEA,FTA,HARA, Safety plan6 个回复 - 2466 次查看 汽车功能安全ISO26262工作模板-英文：FMEA,FTA,HARA, Safety plan，control plan.......... 全套汽车功能安全ISO26262工作模板-英文：FMEA,FTA,HARA, Safety plan，control plan.......... 全套汽车功能安全IS ...2020-11-20 12:37 - Fu-pear - 现金交易版
【ISO26262，FMEA，FTA，HARA】全面的软、硬件产品功能安全工作模板, 专家解读3 个回复 - 1427 次查看 【ISO26262，FMEA，FTA，HARA】全面的软、硬件产品功能安全工作模板，权威专家解读 【ISO26262，FMEA，FTA，HARA】全面的软、硬件产品功能安全工作模板 【ISO26262，FMEA，FTA，HARA】全面的软、硬件产品功能安 ...2019-12-11 12:46 - Mujahida - 现金交易版
半个世纪概率论：个人的一些回忆（上、下）Harald Cramer
31 个回复 - 4204 次查看 半个世纪概率论：个人的一些回忆（上）Harald Cramer； 半个世纪概率论：个人的一些回忆（下）Harald Cramer； **** 本内容被作者隐藏 ****2016-7-8 15:33 - hylpy1 - 经济金融数学专区
31 个回复 - 4204 次查看 半个世纪概率论：个人的一些回忆（上）Harald Cramer； 半个世纪概率论：个人的一些回忆（下）Harald Cramer； **** 本内容被作者隐藏 ****2016-7-8 15:33 - hylpy1 - 经济金融数学专区
A Real Estate Boom with Chinese Characteristics
2 个回复 - 981 次查看 【作者(必填)】Edward Glaeser, Wei Huang, Yueran Ma and AndreiShleifer 【文题(必填)】A Real Estate Boom with Chinese Characteristics 【年份(必填)】Journal of EconomicPerspectives Vol. 31,Issue 1 ...2017-7-2 11:11 - 飞天玄舞6 - 求助成功区
2 个回复 - 981 次查看 【作者(必填)】Edward Glaeser, Wei Huang, Yueran Ma and AndreiShleifer 【文题(必填)】A Real Estate Boom with Chinese Characteristics 【年份(必填)】Journal of EconomicPerspectives Vol. 31,Issue 1 ...2017-7-2 11:11 - 飞天玄舞6 - 求助成功区
求O 'Hara Market Microstructure Theory pdf
11 个回复 - 3940 次查看 【作者(必填)】O 'Hara 【文题(必填)】Market Microstructure Theory 【年份(必填)】1995 【全文链接或数据库名称(选填)】http://zh.scribd.com/doc/110370524/Maureen-O-Hara-Market-Microstructure-Th ...2014-5-15 13:09 - onroad24 - 求助成功区
11 个回复 - 3940 次查看 【作者(必填)】O 'Hara 【文题(必填)】Market Microstructure Theory 【年份(必填)】1995 【全文链接或数据库名称(选填)】http://zh.scribd.com/doc/110370524/Maureen-O-Hara-Market-Microstructure-Th ...2014-5-15 13:09 - onroad24 - 求助成功区
Birkhäuser - Operator Relations Characterizing Derivatives (2018)
6 个回复 - 1579 次查看 This monograph develops an operator viewpoint for functional equations in classical function spaces of analysis, thus filling a void in the mathematical literature. Major constructions or operations i ...2018-10-4 09:47 - nivastuli - 博弈论
6 个回复 - 1579 次查看 This monograph develops an operator viewpoint for functional equations in classical function spaces of analysis, thus filling a void in the mathematical literature. Major constructions or operations i ...2018-10-4 09:47 - nivastuli - 博弈论
The Practice of Econometric Theory: An Examination of the Characteristics
1 个回复 - 1019 次查看 Econometric theory, as presented in textbooks and the econometric literature generally, is a somewhat disparate collection of findings. Its essential nature is to be a set of demonstrated results that ...2015-10-3 19:07 - exuan1991 - 计量经济学与统计软件
1 个回复 - 1019 次查看 Econometric theory, as presented in textbooks and the econometric literature generally, is a somewhat disparate collection of findings. Its essential nature is to be a set of demonstrated results that ...2015-10-3 19:07 - exuan1991 - 计量经济学与统计软件
Stress Testing for Financial Institutions by Harald (ed) Scheule (Author), Danie
31 个回复 - 4264 次查看 Stress Testing for Financial Institutions by Harald (ed) Scheule (Author), Daniel (ed) Roesch (Author) Stress-testing for Financial Institutions is a comprehensive guide to this unsolved issue i ...2016-4-11 17:03 - exuan1991 - 金融学（理论版）
31 个回复 - 4264 次查看 Stress Testing for Financial Institutions by Harald (ed) Scheule (Author), Daniel (ed) Roesch (Author) Stress-testing for Financial Institutions is a comprehensive guide to this unsolved issue i ...2016-4-11 17:03 - exuan1991 - 金融学（理论版）
Homo Deus: A Brief History of Tomorrow by Yuval Noah Harari 未来简史
11 个回复 - 3255 次查看 Yuval Noah Harari, author of the critically-acclaimed New York Times bestseller and international phenomenon Sapiens, returns with an equally original, compelling, and provocative book, turning his fo ...2017-1-13 09:22 - FrozensnakeJ - 经管书评
11 个回复 - 3255 次查看 Yuval Noah Harari, author of the critically-acclaimed New York Times bestseller and international phenomenon Sapiens, returns with an equally original, compelling, and provocative book, turning his fo ...2017-1-13 09:22 - FrozensnakeJ - 经管书评
Market Microstructure 领域经典教材 （Joel Hasbrouck, Maureen O'Hara）
7 个回复 - 2787 次查看 Maureen O'Hara - Market Microstructure Theory (1998) Joel Hasbrouck - Empirical market microstructure USA (2004) Maureen O'Hara, Marcos Lopez de Prado, David Easley - High-frequency (2013) 这三本教 ...2020-2-27 18:17 - 广财金融学院 - 金融工程（数量金融）与金融衍生品
7 个回复 - 2787 次查看 Maureen O'Hara - Market Microstructure Theory (1998) Joel Hasbrouck - Empirical market microstructure USA (2004) Maureen O'Hara, Marcos Lopez de Prado, David Easley - High-frequency (2013) 这三本教 ...2020-2-27 18:17 - 广财金融学院 - 金融工程（数量金融）与金融衍生品
mplus Input line exceeded 90 characters报错？
8 个回复 - 9319 次查看 刚刚接触Mplus 输入10个变量后运行报错求助？ 是数据太多dat文件需要修改吗？ *** WARNING Input line exceeded 90 characters. Some input may be truncated.2018-2-5 00:36 - bimomo14 - LISREL、AMOS等结构方程模型分析软件
8 个回复 - 9319 次查看 刚刚接触Mplus 输入10个变量后运行报错求助？ 是数据太多dat文件需要修改吗？ *** WARNING Input line exceeded 90 characters. Some input may be truncated.2018-2-5 00:36 - bimomo14 - LISREL、AMOS等结构方程模型分析软件
destring在转换字符型数据时老出现：contains nonnumeric characters，no replace，该
42 个回复 - 97789 次查看 2012-6-26 13:35 - yuyu1195 - Stata专版
42 个回复 - 97789 次查看 2012-6-26 13:35 - yuyu1195 - Stata专版
暨南大学经济学院经济讲坛-Characteristics of Shadow Price of Non-performing Loan
11 个回复 - 7317 次查看 主 题：Characteristics of Shadow Price of Non-performing Loans: Evidence from Chinese Commercial Banks 地 点：经济学院经济系会议室（501）2013-5-6 21:53 - Toyotomi - 暨南大学经济学院
11 个回复 - 7317 次查看 主 题：Characteristics of Shadow Price of Non-performing Loans: Evidence from Chinese Commercial Banks 地 点：经济学院经济系会议室（501）2013-5-6 21:53 - Toyotomi - 暨南大学经济学院
Markov Processes Characterization and Convergence
5 个回复 - 931 次查看 进一步学习随机过程的参考书2019-3-19 00:58 - 月有阴晴胖瘦 - Forum
5 个回复 - 931 次查看 进一步学习随机过程的参考书2019-3-19 00:58 - 月有阴晴胖瘦 - Forum
转换字符型数据时出现contains nonnumeric characters
4 个回复 - 5303 次查看 按照网友的指导输入了tab ap if regexm(ap,"[^0-9.]")以后还是没有看出问题，请问这是为什么呀？由于长度限制，截取了输入命令以后的部分数据如下：2021-3-18 20:53 - GreatEscape21 - Stata专版
4 个回复 - 5303 次查看 按照网友的指导输入了tab ap if regexm(ap,"[^0-9.]")以后还是没有看出问题，请问这是为什么呀？由于长度限制，截取了输入命令以后的部分数据如下：2021-3-18 20:53 - GreatEscape21 - Stata专版
【运动员精神】 Sport and Character: Reclaiming the Principles of Sportsmanship
8 个回复 - 684 次查看 Sport and Character: Reclaiming the Principles of Sportsmanship by Craig Clifford (Author), Randolph Feezell (Author) In an era when our nightly news is filled with reports of athletes run ...2016-11-15 20:54 - cmwei333 - 经管书评
8 个回复 - 684 次查看 Sport and Character: Reclaiming the Principles of Sportsmanship by Craig Clifford (Author), Randolph Feezell (Author) In an era when our nightly news is filled with reports of athletes run ...2016-11-15 20:54 - cmwei333 - 经管书评
Capitalism with Chinese Characteristics:Entrepreneurship and the State
3 个回复 - 2669 次查看 中译名：有中国特色的资本主义：企业家精神与国家 英文原版高清PDF，目录书签一应俱全。可惜暂时还未有中译本，所以本书值得收藏！！ 本书作者黄亚生为MIT华裔终身教授。关于本书的英文详细介绍请见豆瓣： http:/ ...2009-9-11 11:18 - longzaizhonghua - 经管书评
3 个回复 - 2669 次查看 中译名：有中国特色的资本主义：企业家精神与国家 英文原版高清PDF，目录书签一应俱全。可惜暂时还未有中译本，所以本书值得收藏！！ 本书作者黄亚生为MIT华裔终身教授。关于本书的英文详细介绍请见豆瓣： http:/ ...2009-9-11 11:18 - longzaizhonghua - 经管书评
[下载]MIT华裔经济学家黄亚生新作Capitalism with Chinese Characteristics Entrepreneurship and t
96 个回复 - 19002 次查看 MIT华裔经济学家黄亚生在中国公开出版的作品只有一本《改革时期的外国直接投资》，本次上传的是他的新作Capitalism with Chinese Characteristics Entrepreneurship and the Statemysky321 金钱 +50 &n ...2009-3-2 14:05 - pengdyu - 经管书评
96 个回复 - 19002 次查看 MIT华裔经济学家黄亚生在中国公开出版的作品只有一本《改革时期的外国直接投资》，本次上传的是他的新作Capitalism with Chinese Characteristics Entrepreneurship and the Statemysky321 金钱 +50 &n ...2009-3-2 14:05 - pengdyu - 经管书评
Food Compass is a nutrient profiling system using expanded characteristics for a
6 个回复 - 864 次查看 【作者(必填)】 2323 【文题(必填)】 Food Compass is a nutrient profiling system using expanded characteristics for assessing healthfulness of foods【年份(必填)】 2021 【全文链接或数据库名称(选填)】 ...2021-12-10 20:10 - internet.hzx - 求助成功区
6 个回复 - 864 次查看 【作者(必填)】 2323 【文题(必填)】 Food Compass is a nutrient profiling system using expanded characteristics for assessing healthfulness of foods【年份(必填)】 2021 【全文链接或数据库名称(选填)】 ...2021-12-10 20:10 - internet.hzx - 求助成功区
A Hybrid Data-Driven Approach for Forecasting the Characteristics of Production
0 个回复 - 555 次查看 【作者(必填)】Mohammad Reza Bazargan-Lari[/backcolor] and Sharareh Taghipour[/backcolor] 【文题(必填)】A Hybrid Data-Driven Approach for Forecasting the Characteristics of Production Disruptions an ...2022-8-31 15:28 - zhouyu738 - 文献求助专区
0 个回复 - 555 次查看 【作者(必填)】Mohammad Reza Bazargan-Lari[/backcolor] and Sharareh Taghipour[/backcolor] 【文题(必填)】A Hybrid Data-Driven Approach for Forecasting the Characteristics of Production Disruptions an ...2022-8-31 15:28 - zhouyu738 - 文献求助专区
求助 Characteristics and Procedure ofCommon Stock Split-Ups（Dolly 1933）
5 个回复 - 3809 次查看 【作者(必填)】 J. C. Dolly 【文题(必填)】 Characteristics and Procedure ofCommon Stock Split-Ups 【年份(必填)】 1933 【全文链接或数据库名称(选填)】Harvard Business Review,Vol. 11, No. 3, 1933, ...2020-3-31 11:01 - 无情兽 - 求助成功区
5 个回复 - 3809 次查看 【作者(必填)】 J. C. Dolly 【文题(必填)】 Characteristics and Procedure ofCommon Stock Split-Ups 【年份(必填)】 1933 【全文链接或数据库名称(选填)】Harvard Business Review,Vol. 11, No. 3, 1933, ...2020-3-31 11:01 - 无情兽 - 求助成功区
为什么state变量的类型是integer而不是character
1 个回复 - 557 次查看 >Pur conc rate state 1 0.02 76 treated 2 0.02 47 treated 3 0.06 97 treated 4 0.06 107 treated 5 0.11 123 treated 6 0.11 139 treated 7 0.22 159 treated 8 ...2022-7-11 16:23 - 16639529600 - R语言论坛
1 个回复 - 557 次查看 >Pur conc rate state 1 0.02 76 treated 2 0.02 47 treated 3 0.06 97 treated 4 0.06 107 treated 5 0.11 123 treated 6 0.11 139 treated 7 0.22 159 treated 8 ...2022-7-11 16:23 - 16639529600 - R语言论坛
Thermal and chemical characterization of the solid-electrolyte interphase in Li-
2 个回复 - 597 次查看 【作者(必填)】 【文题(必填)】 Thermal and chemical characterization of the solid-electrolyte interphase in Li-ion batteries using a novel separator sampling method 【年份(必填)】 【全文链接或数 ...2022-7-5 11:14 - ticket1988 - 求助成功区
2 个回复 - 597 次查看 【作者(必填)】 【文题(必填)】 Thermal and chemical characterization of the solid-electrolyte interphase in Li-ion batteries using a novel separator sampling method 【年份(必填)】 【全文链接或数 ...2022-7-5 11:14 - ticket1988 - 求助成功区
Characteristics of and factors influencing thermal runaway propagation in lithiu
1 个回复 - 390 次查看 【作者(必填)】 【文题(必填)】 Characteristics of and factors influencing thermal runaway propagation in lithium-ion battery packs 【年份(必填)】 【全文链接或数据库名称(选填)】https://www.scien ...2022-7-3 18:29 - ticket1988 - 求助成功区
1 个回复 - 390 次查看 【作者(必填)】 【文题(必填)】 Characteristics of and factors influencing thermal runaway propagation in lithium-ion battery packs 【年份(必填)】 【全文链接或数据库名称(选填)】https://www.scien ...2022-7-3 18:29 - ticket1988 - 求助成功区
Characterization of external short circuit faults
1 个回复 - 286 次查看 【作者(必填)】 【文题(必填)】 Characterization of external short circuit faults in electric vehicle Li-ion battery packs and prediction using artificial neural networks 【年份(必填)】 【全文链 ...2022-7-1 19:01 - ticket1988 - 求助成功区
1 个回复 - 286 次查看 【作者(必填)】 【文题(必填)】 Characterization of external short circuit faults in electric vehicle Li-ion battery packs and prediction using artificial neural networks 【年份(必填)】 【全文链 ...2022-7-1 19:01 - ticket1988 - 求助成功区
Thermal runaway characteristics on NCM lithium-ion batteries
1 个回复 - 273 次查看 【作者(必填)】 【文题(必填)】 Thermal runaway characteristics on NCM lithium-ion batteries triggered by local heating under different heat dissipation conditions 【年份(必填)】 【全文链接或数据 ...2022-7-1 15:24 - ticket1988 - 求助成功区
1 个回复 - 273 次查看 【作者(必填)】 【文题(必填)】 Thermal runaway characteristics on NCM lithium-ion batteries triggered by local heating under different heat dissipation conditions 【年份(必填)】 【全文链接或数据 ...2022-7-1 15:24 - ticket1988 - 求助成功区
SAS dataset转换成.xpt 文件时不能超过8个character???
12 个回复 - 8453 次查看 在将SAS dataset转换成.xpt 文件的时候，如果variable name和dataset name 超过8 character 就会有ERROR, 如果指定 VALIDVARNAME=V6就会截断字符串，所以想请教下怎样才可以不截断保留8位以上的变量名或数据集名在生 ...2013-9-23 14:18 - previal - SAS专版
12 个回复 - 8453 次查看 在将SAS dataset转换成.xpt 文件的时候，如果variable name和dataset name 超过8 character 就会有ERROR, 如果指定 VALIDVARNAME=V6就会截断字符串，所以想请教下怎样才可以不截断保留8位以上的变量名或数据集名在生 ...2013-9-23 14:18 - previal - SAS专版
The moral characters of men are formed not by heredity but by environment
0 个回复 - 1496 次查看 heredity [həˈredəti] n.遗传;遗传特征 【英文释义】the process by which mental and physical characteristics are passed by parents to their children; these characteristics in a part ...2022-5-26 20:14 - 杨明凡 - 外语学习
0 个回复 - 1496 次查看 heredity [həˈredəti] n.遗传;遗传特征 【英文释义】the process by which mental and physical characteristics are passed by parents to their children; these characteristics in a part ...2022-5-26 20:14 - 杨明凡 - 外语学习
求助：character 转换成 numeric?
8 个回复 - 33013 次查看 有一列数据data[,"price"]: "2,112.00" "2,113.00" "2,114.00" 是character 用as.numeric(data[,"price"])， 显示警告：强制改变的过程中产生了NA。 请问，该怎么才能正确转换？谢谢2015-4-13 17:14 - 灵石路8号 - R语言论坛
8 个回复 - 33013 次查看 有一列数据data[,"price"]: "2,112.00" "2,113.00" "2,114.00" 是character 用as.numeric(data[,"price"])， 显示警告：强制改变的过程中产生了NA。 请问，该怎么才能正确转换？谢谢2015-4-13 17:14 - 灵石路8号 - R语言论坛
Development and validation of the Characteristics
5 个回复 - 446 次查看 【作者(必填)】 Decroos, S., Lines, R. L. J., Morgan, P. B. C., Fletcher, D., Sarkar, M., Fransen, K., Boen, F., & Vande Broek, G 【文题(必填)】 Development and validation of the Characteristics of ...2022-2-5 15:32 - superzhousi - 求助成功区
5 个回复 - 446 次查看 【作者(必填)】 Decroos, S., Lines, R. L. J., Morgan, P. B. C., Fletcher, D., Sarkar, M., Fransen, K., Boen, F., & Vande Broek, G 【文题(必填)】 Development and validation of the Characteristics of ...2022-2-5 15:32 - superzhousi - 求助成功区
Efficient Intra-Household Allocations: A General Characterization and Empirical
3 个回复 - 387 次查看 【作者(必填)】 M. Browning & P. A.Chiappori 【文题(必填)】 EfficientIntra-Household Allocations: A General Characterization and Empirical Tests 【年份(必填)】 1998 【全文链接或数据库名称(选填)】 ...2022-4-14 06:35 - nieqiang110 - 求助成功区
3 个回复 - 387 次查看 【作者(必填)】 M. Browning & P. A.Chiappori 【文题(必填)】 EfficientIntra-Household Allocations: A General Characterization and Empirical Tests 【年份(必填)】 1998 【全文链接或数据库名称(选填)】 ...2022-4-14 06:35 - nieqiang110 - 求助成功区
基于Tomlinson-Harashima的鲁棒快于Nyquist PDM-mQAM系统
预编码
0 个回复 - 167 次查看 摘要翻译： 针对Tomlinson-Harashima预编码(THP)的快于Nyquist的PDM-mQAM(m=4,16,64）系统，提出了一种基于训练的信道估计算法。这对现有算法所遭受的收敛失败现象是鲁棒的，但仍然是格式透明的。仿真结果表明，在存 ...2022-4-10 10:55 - nandehutu2022 - Forum
0 个回复 - 167 次查看 摘要翻译： 针对Tomlinson-Harashima预编码(THP)的快于Nyquist的PDM-mQAM(m=4,16,64）系统，提出了一种基于训练的信道估计算法。这对现有算法所遭受的收敛失败现象是鲁棒的，但仍然是格式透明的。仿真结果表明，在存 ...2022-4-10 10:55 - nandehutu2022 - Forum
用于双向中继的鲁棒Tomlinson-Harashima预编码
0 个回复 - 164 次查看 摘要翻译： 基于Tomlinson Harashima(TH)预编码的双向中继网络的非线性收发信机大多采用完全信道状态信息(CSI)。本文提出了一种新的鲁棒的TH预编码方案，适用于收发信机和中继节点都有多个天线的双向中继网络。我们假 ...2022-3-7 08:03 - mingdashike22 - Forum
0 个回复 - 164 次查看 摘要翻译： 基于Tomlinson Harashima(TH)预编码的双向中继网络的非线性收发信机大多采用完全信道状态信息(CSI)。本文提出了一种新的鲁棒的TH预编码方案，适用于收发信机和中继节点都有多个天线的双向中继网络。我们假 ...2022-3-7 08:03 - mingdashike22 - Forum
The Sources of Risk Spillovers among U.S. REITs: Financial Characteristics and R
1 个回复 - 798 次查看 【作者(必填)】 23 【文题(必填)】 The Sources of Risk Spillovers among U.S. REITs: Financial Characteristics and Regional Proximity【年份(必填)】 23 【全文链接或数据库名称(选填)】https://onlinelib ...2022-2-4 22:35 - internet.hzx - 求助成功区
1 个回复 - 798 次查看 【作者(必填)】 23 【文题(必填)】 The Sources of Risk Spillovers among U.S. REITs: Financial Characteristics and Regional Proximity【年份(必填)】 23 【全文链接或数据库名称(选填)】https://onlinelib ...2022-2-4 22:35 - internet.hzx - 求助成功区
数据库查询出错，[Err] ERROR: operator does not exist: integer = character var
5 个回复 - 3622 次查看 我在进行一个数据库查询时出现错误，出现下面提示，请哪位懂得老师帮我解决下，万分感谢！！！ [Err] ERROR: operator does not exist: integer = character varying LINE 87: on ie.icustay_id = labs.icustay ...2019-6-24 00:31 - lcyxwrl - SQL及关系型数据库数据分析
5 个回复 - 3622 次查看 我在进行一个数据库查询时出现错误，出现下面提示，请哪位懂得老师帮我解决下，万分感谢！！！ [Err] ERROR: operator does not exist: integer = character varying LINE 87: on ie.icustay_id = labs.icustay ...2019-6-24 00:31 - lcyxwrl - SQL及关系型数据库数据分析
转换字符型数据时出现contains nonnumeric characters
1 个回复 - 2827 次查看 我尝试了黄老师7月20号发布的转换方法和网友们提供的方法，但都无法把字符型行业代码转换成数值型，这是输入tab IndustryCode if regexm(IndustryCode,"[^0-9.]")出现的结果，请大家帮我看一看，该怎么解决这个问题， ...2021-12-20 22:28 - Fffsssxueshu - Stata专版
1 个回复 - 2827 次查看 我尝试了黄老师7月20号发布的转换方法和网友们提供的方法，但都无法把字符型行业代码转换成数值型，这是输入tab IndustryCode if regexm(IndustryCode,"[^0-9.]")出现的结果，请大家帮我看一看，该怎么解决这个问题， ...2021-12-20 22:28 - Fffsssxueshu - Stata专版
如何将带有逗号的数字转化成numeric characters
7 个回复 - 7375 次查看 dta格式的文件 数字是带有逗号的 如1，000 stata认为是nonnumeric characters，所以不能进行处理，也不能用destring转化，请问怎样可以转化成numeric characters? 谢谢2010-8-19 10:16 - wonway - Stata专版
7 个回复 - 7375 次查看 dta格式的文件 数字是带有逗号的 如1，000 stata认为是nonnumeric characters，所以不能进行处理，也不能用destring转化，请问怎样可以转化成numeric characters? 谢谢2010-8-19 10:16 - wonway - Stata专版
ggplot报错: "rescale"没有适用于"character"目标
4 个回复 - 3020 次查看 最近做间断时间序列分析，用ggplot画图的时候报错："rescale"没有适用于"character"目标对象的方法”，求大佬解答（图为代码）2021-8-25 11:04 - Gre27 - R语言论坛
4 个回复 - 3020 次查看 最近做间断时间序列分析，用ggplot画图的时候报错："rescale"没有适用于"character"目标对象的方法”，求大佬解答（图为代码）2021-8-25 11:04 - Gre27 - R语言论坛
Stata用spread命令时，提示characteristic contents too long
4 个回复 - 2028 次查看 Stata用spread命令时，提示characteristic contents too long. The maximum value of the contents is 67,784.请问该如何解决 我的命令是: spread list Element （注意：这里只给出部分数据，应该不会报错） ...2021-8-3 20:52 - 周正 - Stata专版
4 个回复 - 2028 次查看 Stata用spread命令时，提示characteristic contents too long. The maximum value of the contents is 67,784.请问该如何解决 我的命令是: spread list Element （注意：这里只给出部分数据，应该不会报错） ...2021-8-3 20:52 - 周正 - Stata专版
【比尔盖茨系列】品格之路 The Road to Character
141 个回复 - 21728 次查看 2015年最新畅销书，比尔盖茨强烈推荐，也被《经济学人》和多位政商学界精英推荐，降价出售3天，想要随时跟踪最新好书，请点击头像下方“加关注”。关注成功后，查看这里即可：关注的帖子。近千本好书等你来拿！详情请 ...2015-12-8 19:18 - wwqqer - 金融学（理论版）
141 个回复 - 21728 次查看 2015年最新畅销书，比尔盖茨强烈推荐，也被《经济学人》和多位政商学界精英推荐，降价出售3天，想要随时跟踪最新好书，请点击头像下方“加关注”。关注成功后，查看这里即可：关注的帖子。近千本好书等你来拿！详情请 ...2015-12-8 19:18 - wwqqer - 金融学（理论版）
Structural Characteristics of the Regional Economic Correlation Network...
0 个回复 - 576 次查看 【作者(必填)】Weihua Su, Dongcai Zhang, Nan Wang, Shouzhen Zeng 【文题(必填)】Structural Characteristics of the Regional Economic Correlation Network in Eastern China. From the Provincial Industri ...2021-6-25 08:59 - 蜗牛飞呀 - 文献求助专区
0 个回复 - 576 次查看 【作者(必填)】Weihua Su, Dongcai Zhang, Nan Wang, Shouzhen Zeng 【文题(必填)】Structural Characteristics of the Regional Economic Correlation Network in Eastern China. From the Provincial Industri ...2021-6-25 08:59 - 蜗牛飞呀 - 文献求助专区
【Bharatendra Rai】Advanced Deep Learning with R
1 个回复 - 500 次查看 2021-6-20 22:59 - Nicolle - winbugs及其他软件专版
1 个回复 - 500 次查看 2021-6-20 22:59 - Nicolle - winbugs及其他软件专版
Performance and Heat Transfer Characteristics of a Latent Heat Storage Unit with
4 个回复 - 677 次查看 【作者(必填)】YAMASHITA YOSHIHIKO (Osaka Univ. Graduate School of Engineering Sci., JPN) , HIRATA YUUSHI (Osaka Univ. Graduate School of Engineering Sci., JPN) , IWATA YUKIO (Osaka Gas Co. ...2021-5-25 13:59 - 真龙121 - 文献求助专区
4 个回复 - 677 次查看 【作者(必填)】YAMASHITA YOSHIHIKO (Osaka Univ. Graduate School of Engineering Sci., JPN) , HIRATA YUUSHI (Osaka Univ. Graduate School of Engineering Sci., JPN) , IWATA YUKIO (Osaka Gas Co. ...2021-5-25 13:59 - 真龙121 - 文献求助专区
Chandrasekharan 1968
3 个回复 - 840 次查看 Chandrasekharan, Introduction to Analytic Number Theory 19682021-5-6 05:27 - ress1992 - 悬赏大厅
3 个回复 - 840 次查看 Chandrasekharan, Introduction to Analytic Number Theory 19682021-5-6 05:27 - ress1992 - 悬赏大厅
R语言做大选择检验时报错”Do not know how to handle objects of class character“
3 个回复 - 1810 次查看 大选择检验报错不知道如何处理类字符对象？ 我在R上做最大选择检验时用了如下语句 max_No.OR2021-4-28 13:13 - KnTao_ - R语言论坛
3 个回复 - 1810 次查看 大选择检验报错不知道如何处理类字符对象？ 我在R上做最大选择检验时用了如下语句 max_No.OR2021-4-28 13:13 - KnTao_ - R语言论坛
【Entrepreneurship】By: Bygrave, W., and Zacharakis, A.,3rd
4 个回复 - 1644 次查看 Entrepreneurship 3rd Author William D. Bygrave; Andrew Zacharakis Publisher John Wiley & Sons Edition: 3rd, Third, 3e Year: 2014 Format: Paperback 608 p ...2015-9-5 14:02 - wan6313515 - 求助成功区
4 个回复 - 1644 次查看 Entrepreneurship 3rd Author William D. Bygrave; Andrew Zacharakis Publisher John Wiley & Sons Edition: 3rd, Third, 3e Year: 2014 Format: Paperback 608 p ...2015-9-5 14:02 - wan6313515 - 求助成功区
Relations Between Work Group Characteristics and Effectiveness
1 个回复 - 515 次查看 【作者(必填)】Campion, M. A., Medsker, G. J. & Higgs, A. 【文题(必填)】Relations Between Work Group Characteristics and Effectiveness: Implications for Designing Effective Work Groups 【年份(必填 ...2021-3-27 15:24 - yuan.ying - 求助成功区
1 个回复 - 515 次查看 【作者(必填)】Campion, M. A., Medsker, G. J. & Higgs, A. 【文题(必填)】Relations Between Work Group Characteristics and Effectiveness: Implications for Designing Effective Work Groups 【年份(必填 ...2021-3-27 15:24 - yuan.ying - 求助成功区
Customer-Value Based Segmentation and Characteristics Analysis of Credit Card
2 个回复 - 622 次查看 【作者(必填)】Changzheng HeMingzhu ZhangJianguo Zheng[/backcolor]Xiaoyu LiDongyue Du 【文题(必填)】Customer-Value Based Segmentation and Characteristics Analysis of Credit Card Revolver 【年份(必填 ...2021-3-24 15:44 - eric_darcy - 文献求助专区
2 个回复 - 622 次查看 【作者(必填)】Changzheng HeMingzhu ZhangJianguo Zheng[/backcolor]Xiaoyu LiDongyue Du 【文题(必填)】Customer-Value Based Segmentation and Characteristics Analysis of Credit Card Revolver 【年份(必填 ...2021-3-24 15:44 - eric_darcy - 文献求助专区
求 Customer-Value Based Segmentation and Characteristics Analysis of Credit Card
2 个回复 - 635 次查看 【作者(必填)】Changzheng HeMingzhu ZhangJianguo Zheng 【文题(必填)】Customer-Value Based Segmentation and Characteristics Analysis of Credit Card Revolver 【年份(必填)】 2014[/backcolor] 【全文 ...2021-3-24 17:21 - eric_darcy - 求助成功区
2 个回复 - 635 次查看 【作者(必填)】Changzheng HeMingzhu ZhangJianguo Zheng 【文题(必填)】Customer-Value Based Segmentation and Characteristics Analysis of Credit Card Revolver 【年份(必填)】 2014[/backcolor] 【全文 ...2021-3-24 17:21 - eric_darcy - 求助成功区
Executive Turnover: The Influence of Dispersion and Other Pay System Characteris
1 个回复 - 277 次查看 【作者(必填)】Messersmith, Jake G.1 Guthrie, James P.2 Yong-Yeon Ji3 Jeong-Yeon Lee2 【文题(必填)】Executive Turnover: The Influence of Dispersion and Other Pay System Characteristics 【年份 ...2021-3-21 14:34 - lyh853 - 求助成功区
1 个回复 - 277 次查看 【作者(必填)】Messersmith, Jake G.1 Guthrie, James P.2 Yong-Yeon Ji3 Jeong-Yeon Lee2 【文题(必填)】Executive Turnover: The Influence of Dispersion and Other Pay System Characteristics 【年份 ...2021-3-21 14:34 - lyh853 - 求助成功区
Estimating willingness to pay for housing characteristics
1 个回复 - 284 次查看 【作者(必填)】 【文题(必填)】 Estimating willingness to pay for housing characteristics: An application of the Ellickson bid-rent model 【年份(必填)】 【全文链接或数据库名称(选填)】https://www ...2021-3-8 14:46 - ticket1988 - 求助成功区
1 个回复 - 284 次查看 【作者(必填)】 【文题(必填)】 Estimating willingness to pay for housing characteristics: An application of the Ellickson bid-rent model 【年份(必填)】 【全文链接或数据库名称(选填)】https://www ...2021-3-8 14:46 - ticket1988 - 求助成功区
Compensation committee characteristics
1 个回复 - 417 次查看 【作者(必填)】Yu Ling Tsai & Hua-Wei Huang 【文题(必填)】Compensation committee characteristics and voluntary executive compensation disclosure 【年份(必填)】2020 【全文链接或数据库名称(选填) ...2021-2-20 10:07 - fxq2327 - 求助成功区
1 个回复 - 417 次查看 【作者(必填)】Yu Ling Tsai & Hua-Wei Huang 【文题(必填)】Compensation committee characteristics and voluntary executive compensation disclosure 【年份(必填)】2020 【全文链接或数据库名称(选填) ...2021-2-20 10:07 - fxq2327 - 求助成功区
CEO horizon problem and characteristics of board of directors
1 个回复 - 358 次查看 【作者(必填)】Ruonan Liu Zhenfeng Liu 【文题(必填)】CEO horizon problem and characteristics of board of directors and compensation committee 【年份(必填)】2020 【全文链接或数据库名称(选填)】 ...2021-2-16 22:01 - fxq2327 - 求助成功区
1 个回复 - 358 次查看 【作者(必填)】Ruonan Liu Zhenfeng Liu 【文题(必填)】CEO horizon problem and characteristics of board of directors and compensation committee 【年份(必填)】2020 【全文链接或数据库名称(选填)】 ...2021-2-16 22:01 - fxq2327 - 求助成功区
measuring mutual fund performance with characteristic--based benchmarks
3 个回复 - 844 次查看 【作者(必填)】 Daniel,K.,M.Grinblatt,S.Titman,and R.Wermers 【文题(必填)】 measuring mutual fund performance with characteristic--bases benchmarks 【年份(必填)】 1997 【全文链接或数据库名称(选填 ...2017-10-27 12:34 - cohen-ci - 求助成功区
3 个回复 - 844 次查看 【作者(必填)】 Daniel,K.,M.Grinblatt,S.Titman,and R.Wermers 【文题(必填)】 measuring mutual fund performance with characteristic--bases benchmarks 【年份(必填)】 1997 【全文链接或数据库名称(选填 ...2017-10-27 12:34 - cohen-ci - 求助成功区
Does Character Similarity Increase Identification and Persuasion?
1 个回复 - 289 次查看 【作者(必填)】 【文题(必填)】Does Character Similarity Increase Identification and Persuasion? 【年份(必填)】 【全文链接或数据库名称(选填)】 Does Character Similarity Increase Identification ...2021-1-8 08:27 - 江夏雁 - 求助成功区
1 个回复 - 289 次查看 【作者(必填)】 【文题(必填)】Does Character Similarity Increase Identification and Persuasion? 【年份(必填)】 【全文链接或数据库名称(选填)】 Does Character Similarity Increase Identification ...2021-1-8 08:27 - 江夏雁 - 求助成功区
Optical Character Recognition Systems for Different Languages with Soft Computin
6 个回复 - 740 次查看 【作者(必填)】Arindam Chaudhuri (Author), Krupa Mandaviya (Author), Pratixa Badelia (Author) 【文题(必填)】Optical Character Recognition Systems for Different Languages with Soft Computing 【年份 ...2021-1-4 07:12 - happydude - 求助成功区
6 个回复 - 740 次查看 【作者(必填)】Arindam Chaudhuri (Author), Krupa Mandaviya (Author), Pratixa Badelia (Author) 【文题(必填)】Optical Character Recognition Systems for Different Languages with Soft Computing 【年份 ...2021-1-4 07:12 - happydude - 求助成功区
Sketch Based 3D Character Deformation
0 个回复 - 405 次查看 【作者(必填)】Mo Li 【文题(必填)】Sketch Based 3D Character Deformation 【年份(必填)】2011 【全文链接或数据库名称(选填)】https://www.researchgate.net/publication/220094658_Sketch_Based_3D_C ...2020-11-13 15:01 - hebaoxing - 文献求助专区
0 个回复 - 405 次查看 【作者(必填)】Mo Li 【文题(必填)】Sketch Based 3D Character Deformation 【年份(必填)】2011 【全文链接或数据库名称(选填)】https://www.researchgate.net/publication/220094658_Sketch_Based_3D_C ...2020-11-13 15:01 - hebaoxing - 文献求助专区
【学习笔记】62、determined to think the true character， reading to do h ...
1 个回复 - 545 次查看 62、determined to think the true character， reading to do hard work。 -- ruan yuan 立志宜思真品格，读书须尽苦功夫。——阮元2020-11-7 18:42 - 李沐寒521521 - Forum
1 个回复 - 545 次查看 62、determined to think the true character， reading to do hard work。 -- ruan yuan 立志宜思真品格，读书须尽苦功夫。——阮元2020-11-7 18:42 - 李沐寒521521 - Forum
解决 Some character data was lost during transcoding in the dataset问题
12 个回复 - 15214 次查看 问题介绍：我安装的SAS软件在读取朱世武老师的样本数据resdat是总是会出现 Some character data was lost during transcoding in the dataset 的问题。经过一段时间的瞎倒腾，好像这个问题被我解决的（至少我现在可以 ...2012-4-27 21:52 - 数量经济学zuo - SAS专版
12 个回复 - 15214 次查看 问题介绍：我安装的SAS软件在读取朱世武老师的样本数据resdat是总是会出现 Some character data was lost during transcoding in the dataset 的问题。经过一段时间的瞎倒腾，好像这个问题被我解决的（至少我现在可以 ...2012-4-27 21:52 - 数量经济学zuo - SAS专版
【学习笔记】2020/08/21-Oracle’s Ellison steps out of character with app ...
1 个回复 - 418 次查看 2020/08/21-Oracle’s Ellison steps out of character with approach for TikTok2020-8-21 09:49 - fangchouzhu - Forum
1 个回复 - 418 次查看 2020/08/21-Oracle’s Ellison steps out of character with approach for TikTok2020-8-21 09:49 - fangchouzhu - Forum
Does Economic Freedom Matter to Foreign Direct Investment in Sub-Saharan Africa?
1 个回复 - 403 次查看 【作者(必填)】SooreeaBheemul [/backcolor] 【文题(必填)】Does Economic Freedom Matter to Foreign Direct Investment in Sub-Saharan Africa? 【年份(必填)】2020 【全文链接或数据库名称(选填) ...2020-8-5 11:30 - xiaoxingyunlala - 求助成功区
1 个回复 - 403 次查看 【作者(必填)】SooreeaBheemul [/backcolor] 【文题(必填)】Does Economic Freedom Matter to Foreign Direct Investment in Sub-Saharan Africa? 【年份(必填)】2020 【全文链接或数据库名称(选填) ...2020-8-5 11:30 - xiaoxingyunlala - 求助成功区
Effective Design of Cushioning Package to Improve Shockproof Characteristics of
1 个回复 - 391 次查看 【作者(必填)】 【文题(必填)】Effective Design of Cushioning Package to Improve Shockproof Characteristics of Large-Sized Home Appliances# 【年份(必填)】2009 【全文链接或数据库名称(选填)】https: ...2020-7-18 23:48 - victorbian - 求助成功区
1 个回复 - 391 次查看 【作者(必填)】 【文题(必填)】Effective Design of Cushioning Package to Improve Shockproof Characteristics of Large-Sized Home Appliances# 【年份(必填)】2009 【全文链接或数据库名称(选填)】https: ...2020-7-18 23:48 - victorbian - 求助成功区
R studio求助 Error: invalid multibyte character in parser at line 1
21 个回复 - 12604 次查看 R studio 求助 Error: invalid multibyte character in parser at line 1 之前一直都很好用，没出现过这种问题，但是这个错误前两天突然就出现了，然后就发现R studio打开一段时间以后就会特别慢，这种慢首先肯 ...2017-9-14 17:49 - 青瘦不儒 - R语言论坛
21 个回复 - 12604 次查看 R studio 求助 Error: invalid multibyte character in parser at line 1 之前一直都很好用，没出现过这种问题，但是这个错误前两天突然就出现了，然后就发现R studio打开一段时间以后就会特别慢，这种慢首先肯 ...2017-9-14 17:49 - 青瘦不儒 - R语言论坛
Executive Team Characteristics, Internal Control, and Corporate Social Responsib
1 个回复 - 397 次查看 【作者(必填)】Qi Du 【文题(必填)】Executive Team Characteristics, Internal Control, and Corporate Social Responsibility 【年份(必填)】7 January 2020 【全文链接或数据库名称(选填)】https://www.at ...2020-4-30 07:54 - tangwei070504 - 求助成功区
1 个回复 - 397 次查看 【作者(必填)】Qi Du 【文题(必填)】Executive Team Characteristics, Internal Control, and Corporate Social Responsibility 【年份(必填)】7 January 2020 【全文链接或数据库名称(选填)】https://www.at ...2020-4-30 07:54 - tangwei070504 - 求助成功区
A Transaction-Cost Perspective on the Multitude of Firm Characteristics
0 个回复 - 680 次查看 A Transaction-Cost Perspective on the Multitude of Firm Characteristics Victor DeMiguel London Business School Alberto Martín-Utrera New Jersey Institute of Technology Francisco J. Nogales Univ ...2020-4-25 16:49 - 2464_1576338390 - 论文版
0 个回复 - 680 次查看 A Transaction-Cost Perspective on the Multitude of Firm Characteristics Victor DeMiguel London Business School Alberto Martín-Utrera New Jersey Institute of Technology Francisco J. Nogales Univ ...2020-4-25 16:49 - 2464_1576338390 - 论文版
Dissecting Characteristics Nonparametrically
0 个回复 - 799 次查看 Dissecting Characteristics Nonparametrically Joachim Freyberger University of Wisconsin-Madison Andreas Neuhierl Olin Business School MichaelWeber University of Chicago We propose a nonparametr ...2020-4-25 16:47 - 2464_1576338390 - 论文版
0 个回复 - 799 次查看 Dissecting Characteristics Nonparametrically Joachim Freyberger University of Wisconsin-Madison Andreas Neuhierl Olin Business School MichaelWeber University of Chicago We propose a nonparametr ...2020-4-25 16:47 - 2464_1576338390 - 论文版
Dissecting Characteristics Nonparametrically
1 个回复 - 854 次查看 【作者(必填)】 Joachim Freyberger, Andreas Neuhierl, Michael Weber 【文题(必填)】 Dissecting Characteristics Nonparametrically【年份(必填)】 May 2020 【全文链接或数据库名称(选填)】https://academi ...2020-4-23 08:53 - leosong - 求助成功区
1 个回复 - 854 次查看 【作者(必填)】 Joachim Freyberger, Andreas Neuhierl, Michael Weber 【文题(必填)】 Dissecting Characteristics Nonparametrically【年份(必填)】 May 2020 【全文链接或数据库名称(选填)】https://academi ...2020-4-23 08:53 - leosong - 求助成功区
A Transaction-Cost Perspective on the Multitude of Firm Characteristics
1 个回复 - 394 次查看 【作者(必填)】 Victor DeMiguel, Alberto Martín-Utrera, Francisco J Nogales, Raman Uppal 【文题(必填)】 A Transaction-Cost Perspective on the Multitude of Firm Characteristics【年份(必填)】 May 20 ...2020-4-23 08:51 - leosong - 求助成功区
1 个回复 - 394 次查看 【作者(必填)】 Victor DeMiguel, Alberto Martín-Utrera, Francisco J Nogales, Raman Uppal 【文题(必填)】 A Transaction-Cost Perspective on the Multitude of Firm Characteristics【年份(必填)】 May 20 ...2020-4-23 08:51 - leosong - 求助成功区
【学习笔记】A man\'s character may be learned from the adjectives whic ...
0 个回复 - 563 次查看 A man\'s character may be learned from the adjectives which he habitually uses in conversation. 可以从谈吐中使用的形容词了解一个人的性格。2020-4-21 06:31 - ccwwccww - Forum
0 个回复 - 563 次查看 A man\'s character may be learned from the adjectives which he habitually uses in conversation. 可以从谈吐中使用的形容词了解一个人的性格。2020-4-21 06:31 - ccwwccww - Forum
【哈佛商学院教授 Bharat Anand 著作】 The Content Trap (2016)
27 个回复 - 3913 次查看 The Content Trap: A Strategist's Guide to Digital Change by Bharat Anand (Author) “As Bharat Anand shows in this eminently readable book, connections are now more important than content.” ...2016-12-11 12:10 - cmwei333 - 商学院
27 个回复 - 3913 次查看 The Content Trap: A Strategist's Guide to Digital Change by Bharat Anand (Author) “As Bharat Anand shows in this eminently readable book, connections are now more important than content.” ...2016-12-11 12:10 - cmwei333 - 商学院
Regional Characteristics and Causes of Farmers' Poverty
2 个回复 - 465 次查看 【作者(必填)】Wang BW, Wang YN, Li H, Yao SB 【文题(必填)】Regional Characteristics and Causes of Farmers' Poverty in the Perspective of Agricultural Development 【年份(必填)】2019,36,1：33-45 ...2020-3-28 17:14 - 匿名 - 求助成功区
2 个回复 - 465 次查看 【作者(必填)】Wang BW, Wang YN, Li H, Yao SB 【文题(必填)】Regional Characteristics and Causes of Farmers' Poverty in the Perspective of Agricultural Development 【年份(必填)】2019,36,1：33-45 ...2020-3-28 17:14 - 匿名 - 求助成功区
Skew CIR process, conditional characteristic function, moments and bond pricing
1 个回复 - 544 次查看 【作者(必填)】 【文题(必填)】Skew CIR process, conditional characteristic function, moments and bond pricing 【年份(必填)】 【全文链接或数据库名称(选填)】https://www.sciencedirect.com/science/a ...2020-3-24 18:07 - ssylzz - 求助成功区
1 个回复 - 544 次查看 【作者(必填)】 【文题(必填)】Skew CIR process, conditional characteristic function, moments and bond pricing 【年份(必填)】 【全文链接或数据库名称(选填)】https://www.sciencedirect.com/science/a ...2020-3-24 18:07 - ssylzz - 求助成功区
求助论文：Top Management Team Characteristics and Financial Reporting Quality
4 个回复 - 619 次查看 各位大神： 求助各位大神下载该篇论文：Top Management Team Characteristics and Financial Reporting Quality （高层管理团队特征和财务报告质量） 本人通过doi在sci-hub上下载的论文与标题不符，求助各路大 ...2019-12-6 22:37 - tangwei070504 - 会计与财务管理
4 个回复 - 619 次查看 各位大神： 求助各位大神下载该篇论文：Top Management Team Characteristics and Financial Reporting Quality （高层管理团队特征和财务报告质量） 本人通过doi在sci-hub上下载的论文与标题不符，求助各路大 ...2019-12-6 22:37 - tangwei070504 - 会计与财务管理
OHara《市场微观结构理论》和 Frank等人的《金融市场微观结构》
11 个回复 - 6275 次查看 都是研究市场微观结构相当有用的经典参考书籍。2011-4-8 07:58 - lauralupku - 金融学（理论版）
11 个回复 - 6275 次查看 都是研究市场微观结构相当有用的经典参考书籍。2011-4-8 07:58 - lauralupku - 金融学（理论版）
求书Structural and Return Characteristic of Small and Large Firms
0 个回复 - 424 次查看 请问有人有这本书吗？2020-3-15 23:01 - 张Sea - 爱问频道
0 个回复 - 424 次查看 请问有人有这本书吗？2020-3-15 23:01 - 张Sea - 爱问频道
求书Structural and Return Characteristic of Small and Large Firms
0 个回复 - 413 次查看 请问有人有这本书吗，谢谢。2020-3-15 22:59 - 张Sea - 爱问频道
0 个回复 - 413 次查看 请问有人有这本书吗，谢谢。2020-3-15 22:59 - 张Sea - 爱问频道
Understanding the time characteristic of user behavior on online forums
1 个回复 - 324 次查看 【作者(必填)】Guirong Chen; Ning Wang; Fengqin Zhang; Hua Jiang 【文题(必填)】Understanding the time characteristic of user behavior on online forums 【年份(必填)】2015 【全文链接或数据库名称 ...2020-3-12 16:41 - hou0922 - 求助成功区
1 个回复 - 324 次查看 【作者(必填)】Guirong Chen; Ning Wang; Fengqin Zhang; Hua Jiang 【文题(必填)】Understanding the time characteristic of user behavior on online forums 【年份(必填)】2015 【全文链接或数据库名称 ...2020-3-12 16:41 - hou0922 - 求助成功区
