如何作网络通信领域的研究

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  • 1. 如何做网络通信领域的研究? Yanglet 上海交通大学 2011年12月1日
  • 2. 来源与参考0. 2010年和2011年,本实验室组会和973联合实验室组会; 2010年6~8月973论文培训; 2011年10~11月SIGCOMM、MobiCom论文集训;参考1. 倪明选 , 香港科技大学讲座教授 上海交通大学致远讲习教授; 《如何做应用型研究?》2. Qiang Yang, 香港科技大学讲座教授 人工智能; 《The Road from Research IDEAs to Papers》3. 冯丹, 华中科技大学 计算机学院副院长 存储; 《科技论文写作》5. Jennifer Rexford, Princeton University 《The Networking Philosopher’s Problem》 CCR, 2011-06-034. 伍民友 , 上海交通大学 电院计算系 教授; 《做研究与怎样做研究》
  • 3. 提纲 什么是科学研究? 理论研究与应用型研究 网络通信领域的科学研究• 网络领域的重要会议与期刊• 如何搜索论文• 如何阅读论文? 什么样的课题可以做,有哪些研究类型? 如何去找一个好的研究题目? ― 几位师兄的例子• Sensor Networks:赵铭辰、孔令和• VANETs:朱弘恣、李智、吴宇晨 如何把一个研究题目做好? 如何把一篇文章写好? 关于论文审稿 结论
  • 4. 什么是研究(research)?研究是 Re (repeat) + search 吗?资料收集是研究吗?事实的发现(fact discovery)是研究吗?研究是创造新的知识研究并没有一个简单的模式 ― 做研究的方法会因人而异或因事而异 ― 不同的人做研究的方法也可能不同理论型研究:Theoretical Research应用型研究:Applied Research 4
  • 5. Theoretical or Applied Research ?网络通信领域与物理,数学等领域是不同的― 理论物理,实验物理,计算物理― 纯数学,应用数学,计算数学网络通信领域是应用科学,也有理论问题,也需理论研究基础什么是网络通信领域的理论研究?― Algorithms, NP-complete, graph theory, game theory, information theory, coding theory, queuing theory, etc.― 研究结果不一定有直接应用价值 • 例如电子系王新兵老师:Network Capacity & Connectivity网络通信领域基本上是应用型科学研究― 研究的结果可能有实际的应用价值― 需要的支撑技术成熟了吗?― 解决的问题有意义吗?― 解决问题的方法可行吗? • 解决问题的方法常需要理论研究的基础(如:NP) 5
  • 6. 关于科学研究 John Day (参与ARPANET的设计)计算机科学与其他科学领域的最大区别是:我们构建自己所测量的! Mark Twain《Life on the Mississippi》科学使人着迷:在其中我们可以通过对少量事实进行研究而获得大量的猜想! 金海老师计算机学科没有科学问题,因为计算机领域的所有科学问题都是数学问题!
  • 7. 网络领域的重要会议与期刊博士毕业相关:根据上海交大计算机系与中国计算机学会评级国际会议― 毕业: SIGCOMM、MobiCom、INFOCOM、ICDCS、IPDPS、(网络安全:S&P, STOC) 信息处理、知识发现与数据库:SIGKDD、SIGMETRICS、 SIGMOD、VLDB、SIGIR、ICDE― Rank 1: SIGCOMM、MobiCom― Rank 2: NSDI、ICNP、MobiHoc、SenSys、PerCom、IMC、CoNEXT 、IPSN― Rank 3: SECON、WCNC、ICC、Globecom顶级期刊― 毕业:ToN、JSAC、ToIT、TPDS、TMC、TWC、ToSN 、JPDC、 Trans. on (Communications, Computers, Computer Systems)、 Computer Networks重要信息:接收率、截稿日期与收录篇数(大致)― 15~18% INFOCOM~7月30日(290/1600) ICDCS~12月15日(80/580)― 12% SIGCOMM~1月27日(33/270) MobiCom~3月9日(30/270)― 35~45% GlobeCom~3月15日(1100/3000) ICC、WCNC~9月20日(1000,550)
  • 8. 要读多少有关文章?要读什么有关文章?Top conferences or workshops first ― ACM Sigcomm, ACM/IEEE Mobicom, IEEE Infocom ― IEEE ICNP, ACM MobiHoc , IEEE ICDCSSecond tier conferences only for reference ― IEEE Globecom, ICC,WCNCAvoid bad conferencesLook for some known researchers web sitesFor me ― Dina Katabi @ MIT, Lili Qiu & Yin Zhang @UTCS, Peter Steenkiste@CMU; ― Sachin Katii@Stanford, Tian He@ Minnesota ; ― Qian Zhang@HKUST, Yunhao Liu@Tsing Hua;Read journal papers only it has not been published else where, orwhen it contains more detailed and complete treatment.
  • 9. 如何搜索论文?网络通信领域的顶级会议的主页
  • 10. 如何搜索论文?网络通信领域的顶级会议的主页跟踪10位学术牛人的主页― Lili Qiu @UTCS
  • 11. 如何搜索论文?网络通信领域的顶级会议的主页跟踪10位学术牛人的主页― Lili Qiu @UTCS搜索引擎― Google Scholar, Microsoft Academic Search;― Google;― IEEE Elec. Library Search.
  • 12. 如何读论文?问题― What― Why • 为什么要解决这个问题?解决的问题有意义吗?为什么别人没想到这个问题?解决方案― 方法合理吗?方法够好吗?评估的方法合理吗?别人有类似的方法吗?文章的罩门在那里?― 用了那些假设? 什么条件下不能适用?还可以做什么― 改良, 对基于模型的文章改良,往往不是好工作― 基于此: 在此之上,顺势思维(掌握新方法和工具时)― 与此类似: 与此平行,发散思维(了解新特性和新问题时)― 由此需要: 在此之下,逆向思维(对问题有了更加本质的认识)例子:李智ICDCS 2011,朱弘恣INFOCOM 2010 Mini:基于此和与此类似; MobiCom这几年收录的多天线: 与此平行 在此之下,往往是SIGCOMM论文的风格,喜欢做基础性研究,有高屋建瓴的姿态!
  • 13. 研究的四个种类New problem and new solution ― This comes rarely, perhaps something you could only wish, once a life-time experience (such as Shannon theory)Old problem and old solution ― Plenty of out there under the category of “Yet another paper on … ”New problem and old solution/Old problem and new solution ― You may target the above two ― Examples: new routing algorithms, a new branch of sub-problems Problem Old New Old Method New
  • 14. New PerspectiveCommunication networksNetwork Diversity and Economic Development (Science, May, 2010)
  • 15. New ProblemDisease / virus / opinion SpreadingA high-resolution human contact network for infectious disease transmission (PNAS November 2010)Understanding the spreading patterns of mobile phone viruses. (Science 2009)
  • 16. 赵铭辰Surface Coverage in Wireless Sensor NetworksINFOCOM 2009,Citation:13
  • 17. 孔令和Optimizing the Spatio-Temporal Distribution of CyberPhysical Systems for Environment AbstractionICDCS 2010,Citation:5
  • 18. 朱弘恣Impact of Traffic Influxes: Revealing Exponential Inter-Contact Timein urban VANETs. TPDS2010.Recognizing Exponential Inter-Contact Time in VANETs. INFOCOM 2010(Mini-conference). Citation 13.IDEA Source:“Study of a Bus-based Disruption-Tolerant Network: Mobility Modeling andImpact on Routing” ACM/IEEE MOBICOM, 2007.
  • 19. 李智Compressive Sensing Approach to Urban Traffic SensingIEEE ICDCS, 2011IDEA Source: Yin Zhang@UTCS,Spatio-Temporal Compressive Sensing and Internet TrafficMatrices (SIGCOMM 2009)
  • 20. 吴宇晨Trajectory Improves Data Delivery in Vehicular NetworksIEEE INFOCOM, 2011
  • 21. 如何去找一个好的研究题目?Drink a beer, relax, and ideas will come to youThe ideas fall from the sky!Understanding the existing work, build upon thatincrementally ― A thorough understanding of those is the basisIdeas in most cases come from the deep understanding of asubject, and possess of broad knowledge ― This is not a technical training, i.e., this is not about solving a differential equations ― This is about relating them to real world problems ― This is about providing new insight beyond known ― This is about your creativity! 21
  • 22. 如何把一个课题做好?如何评价好― 问题新、解决方法新(Novelty)― 研究深入(Depth),如:新问题  NP  近似算法的近似度  模拟/仿真/实现― 解决方案(Soundness)问题― What:把问题定义想清楚,讲清楚― Why:把问题要解决的目标目的讲清楚解决方案 ― 如果问题太大,“分治法”在研究中,可以给一些合理的假设(也是罩门所在)你知道可能的解决方法吗?方法够实际吗?有类似的解决方法吗?与其他的方法有比较吗?多讲讲― 实验室师兄弟们,室友,老板,来访教授多听听― 组会上其他同学的研究思路― 网络通信领域其他学者的做法(如,你所跟踪的牛人)
  • 23. 论文格式 A Generic Paper Outline Courtesy of Dr. Steve Goddard at CSE-UNL: http://cse.unl.edu/‾goddard1. Introduction ― What is the problem ― Why is it not already solved, or other solutions are inferior in one or more important ways ― Why is our solution worth considering and why is it superior in some way ― How the rest of the paper is structured2. Related Work ― What other efforts to solve this problem exist and why do they solve it less well than we do ― What other efforts to solve related problems exist which are relevant to our effort, and why are they less good than our solution for this problem3. Our Design / Implementation ― What we (will do, did): Our Solution ― How our solution works : A basic overview is good! ― The detailed logic of our work.
  • 24. 论文格式 A Generic Paper Outline4. Evaluation ― How we tested our solution ― How our solution performed and how this performance compared to that of other solutions ― Why, how, and to what degree our solution is better than other solutions ― Why you should be impressed with our solution to the problem5. Conclusion and Future Work ― What is the problem ― What is our solution to the problem ― Why our solution is better ― Why you should be impressed ― What we will do next to: • improve our solution • apply our solution to harder versions of this problem • solve related problems with this solution or a realted solution
  • 25. 论文撰写 科技论文的结构论文题名作者姓名+通讯地址摘要+关键词引言(Introduction)方法、实验(methods and Implementation )结果(Results)讨论(Discussion)/结论(Conclusion)致谢参考文献
  • 26. Conference PapersStart earlier for a conference submissionWhich conference to submit?Deadline is the best drive for making progressWhat make a good paper: content and writing!Clear, convincing, simple and good English ― This is a never-ending optimization process, do this within the time and page limitsReview process 5/30 rule ― 5 minutes - Abstract, introduction, figure and conclusion ― 30 minutes – understand 90% of the paperAbout Conference Review ― 3‾6 Reviewer ― 1‾5 Points ― Given independently, then those reviewer decide the paper to go: • Accept (555,554,544,444 一定收;345,344,335,334不确定,看运气!) • Discuss at TPC meeting (333,345,344,335,334,255,245,235,145等等) • Reject (111, 123等)
  • 27. Journal PapersA good conference paper (10%-25% acceptance rate) can besubmitted to a journal, with 30% new resultsReport more complete and focused resultsWhich journal to submit the paper?Give yourself a deadlineBe patient with the long review and re-reviewAt the earlier stage of one’s career, don’t quit if asked formajor revision ― But don’t do seemingly impossible
  • 28. Review ProcessLow acceptance rate ― Typical in many CSE conferencesReviewers are potential competitors ― Try to convince them and don’t give them excuses to kill the paperReviewers are very busy ― Try to make their job easierEnglish is not our strengthDon’t try your luck, it won’t work!
  • 29. What Does a Reviewer Look for?New problem or new solution?Are the main results significant?Is the paper technically correct?Does the paper provide a fair assessment of itsstrength and limitation?Is the paper clearly written, thus accessible togeneral readers?Are the references adequate?Is the paper appropriate for conference/journal?…
  • 30. 关于审稿 The Evil ReviewerHow long do they take to reject your paper? If (Abstract: Search for “In this paper…”=OK) then { If(Introduction: Search for “In this paper…”=OK) then{ (If(Theoretical/Experimental results: Search for key theorems or key charts = OK) then{ If(Related Work: Search for key=OK) then If(English = OK) then(accept pile) Else reject
  • 31. 论文撰写 A Reviewer’s Rejection CommentsThis paper attempts to explain the success of Naive Bayes classifiersby showing that…Unfortunately, this paper was extremely difficult to follow. ― In fact, it took several readings before I even understood the papers basic claims. ― The paper should have stated, at the beginning, that it is focusing on the representational (as opposed to learnability) issue: … ― It would also have been useful to connect this notation with something practical--for example, …The arguments and proofs were difficult to follow. ― They would probably have been easier if the paper had first outlined their structure, before giving the details. ……
  • 32. 总结 《一个英国主教的墓志铭》“我年少时,意气风发,踌躇满志,当时曾想要改变世界。 但当我年事渐长,阅历增多,我发觉自己无力改变世界, 于是缩小了范围,决定先改变我的国家。 但这个目标还是太大了。哥们,这不就是“修身,齐家,治国平天 接着,我步入了中年,无奈之时, 下”,有木有!!! 我将试图改变的对象锁定在最亲密的家人身上。 但天不遂愿,他们个个还是维持原样。 当我垂垂老矣,我终于顿悟了一件事, 我应该先改变自己用以身作则的方式影响家人。 若我能先当家人的榜样,也许下一步就能改变我的国家, 再后来我甚至可能改变整个世界,谁知道呢?”
  • 33. Thank you!给你材料,油盐酱醋味精、佐料,和食 谱, 你会做一道什么样的菜?