陈老师您好,我按照博文“如何解决“Could not create the Java virtual machine”的问题”下载了2G的citespace2gb.jnlp。但双击后出现error:Could not create the Java virtual machine.error:a fatal exception has occurred.Program will exit.我需要扩展内存吗?谢谢陈老师。
陈老师,我按照您的教程,一步一步做。sci下载了txt,命名为download_2001.txt。project home填了C:\Users\tcl\Desktop\test\project,data directory填了C:\Users\tcl\Desktop\test\data。可是,一点“go”,space status里的space、nodes、links全是0,什么也分析不出来。请教您怎么办?
它提示,make sure that your data files indeed include relevant information,sucn as references;try again with lower thresholds.
陈老师,您好。我是一名在校本科生,近期跟老师做一个信息可视化的项目,需要用到您开发的citespace,可我的电脑怎么也启动不了,我已经装了java,但每次启动launch.jnlp时,都会弹出“应用程序错误”的对话框,点击详细信息,会看到——
错误:无法加载资源:file:/C:/CitespaceII/dist/launch.jnlp
异常:
com.sun.deploy.net.FailedDownloadException: 无法加载资源:file:/C:/CiteSpaceII/dist/launch.jnlp
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
封装异常:
java.io.FileNotFoundException: C:\CiteSpaceII\dist\launch.jnlp (系统找不到指定的路径。)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at sun.net.www.protocol.file.FileURLConnection.connect(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doRequest(Unknown Source)
at com.sun.deploy.net.BasicHttpRequest.doGetRequest(Unknown Source)
at com.sun.deploy.net.DownloadEngine.actionDownload(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResourceCacheEntry(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.deploy.net.DownloadEngine.getResource(Unknown Source)
at com.sun.javaws.Launcher.updateFinalLaunchDesc(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)
at com.sun.javaws.Launcher.launch(Unknown Source)
at com.sun.javaws.Main.launchApp(Unknown Source)
at com.sun.javaws.Main.continueInSecureThread(Unknown Source)
at com.sun.javaws.Main$1.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
不知是何原因,迫切需要的到陈老师您的解答!
陈老师,我在DCA聚类分析中,按步骤做到了Cluster Explorer,但是无法做到像您的著作《The Structure and Dynamics of Co‐Citation Clusters:A Multiple‐Perspective Co‐Citation Analysis》中,从最大的聚类中找到cited references as the Intellectual Base或者Citing Articles as Research Fronts,那些cited reference还有citing article是怎么找出来的?我在cluster explorer中可以找到每个聚类的cluster members还有cluster makers。cluster members中有author但是title下面都是省略号“.....”。cluster makers显示正常,下面的文献是不是应该对应的是citing article呢?谢谢陈老师,我的每步都是在您的指导下完成的,真心感谢您,真想拜您当导师。
我的回复(2011-12-23 21:39):cluster members == cited references == intellectual base
cluster makers == citing articles == research fronts
cited references的title你要逐个找一下,最简单的办法是在网络中找到相应的节点,右键》DOI, 或Google Scholar来找title.