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发信人: cercis (meme), 信区: PhD标 题: 张启发院士给他的博士生的一封信发信站: 水木社区 (Sun Mar 22 00:32:42 2009), 站内最近我拜读了各位送交的⑥年度工作计划，仔细推敲后，仍感到有三个方面的问题十分严重： 第一，对课题理解不够，有的根本谈不上理解，做了不止一年，尚未进入角色。 第二，已经完成的工作量严重偏少，博士（有的是从本室硕士上来的）做了几年还未见到可以发表的东西。 第三，在计划中倾向于以最低工作量结束研究。即游击战法。以消耗最少的人力来解决战斗。 这是从纸上看到的。从实验

system of systems 是好书[@more@]

SCA、JBI之比较 SCA最早是由IBM、BEA、Oracle、SAP四大家发起的规范，现在已经有18家成员加入了此规范，包括SUN; JBI是由SUN主导的规范;区别如下（偶在国外的一个论坛上摘来的，就不翻译了，还是原汁原味的好） ： 1. Supporters of SCA view JBI as a Java Platform standard that can be helpful in implementing SCA on the Java platform.2. Supporters of JBI view SCA as providing additional service metadata that can help simplify and standardize service composition within the Java Platform

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ddd[@more@]http://grass.itc.it/download/index.php

ESB core functionality DescriptionLocation transparency The ESB helps with decoupling the service consumer from theservice provider location. The ESB provides a central platformto communicate with any application necessary without couplingthe message sender to the message receiver.Transport protocol conversion An ESB should be able to seamlessly integrate applicationswith different transport protocols like HTTP(S) to JMS, FTP toa file batch, and SMTP to TCP.Message transformation The ESB provide

Algorithms and Theory Artificial Intelligence and Data Mining Audio, Video, and Image Processing Distributed Systems and Parallel Computing Education Human-Computer Interaction and Visualization Hypertext and the Web Information Retrieval Machine Learning Natural Language Processing Operating Systems Profiling and Benchmarkin

哥德尔完备性定理完整性，暂时没有通用定义[@more@]w