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Zoho bests Google in mobile app suite? - Computerworld Blogs
blogs.computerworld.com/zoho_bests_google_in_mobil... Zoho bests Google in mobile app suite?
Opinion: Why your next phone will be a wallet
Mobile commerce
eurotechnology.japan.blog: Mobile 2.0 at the Korean Communications Conference
eurotechnology.com/blog/2009/06/mobile-20-at-korea... Phone Interview Tips
VIOLATIONS CODES
绿坝软件侵犯BSD开源软件许可协议
Browse US openings
Genentech
What is O3D?
Wireless Mesh Networks and Mesh Topology for Network Service Providers through Strix Systems - Mesh
www.strixsystems.com/corporate/careers.asp Careers
Welcome to ZeroC™, the Home of Ice™
Introducing JSON
APIs for SME (station management entity) - Wi-Fi Planet Forums
forums.wi-fiplanet.com/showthread.php?t=7100 APIs for SME (station management entity)
How to hide Login User?
X86 Assembly/GAS Syntax - Wikibooks, collection of open-content textbooks
en.wikibooks.org/wiki/X86_Assembly/GAS_Syntax X86 Assembly/GAS Syntax
Stack (data structure) - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Stack_(data_structure)#Stack... [edit] Basic architecture of a stack
Energy War
Linux Kernel Linked List Explained
日文中的1 2 3 4 5 6 7 8 9 0 这几个数字的平假名和片假名各是怎么写的?_百度知道
zhidao.baidu.com/question/81772923.html?fr=qrl&fr2... 日文中的1 2 3 4 5 6 7 8 9 0 这几个数字的平假名和片假名各是怎么写的?
Nabble - SSH (Secure Shell) - Connection closed by remote host
www.nabble.com/Connection-closed-by-remote-host-td... Connection closed by remote host
ssh_exchange_identification: Connection closed by remote host (solved)
www.raditha.com/blog/archives/000604.html ssh_exchange_identification: Connection closed by remote host (solved)
Linux Kernel Development -- Compiling dependent module
lists.linuxcoding.com/kernel/2006-q4/msg02487.html Compiling dependent module
Method and system for noise floor calibration and receive signal strength
detection
Residential Leasing and Management is the Southwest's
premier property management company
Rental/Lease Agreement (Residential) Form from LawDepot.com
www.lawdepot.com/contracts/reslease/index.php?pid=... Get Started on your Rental / Lease Agreement (Residential):
usage
Multiple Kernel Versions Source Files
OpenWrt / Anyone have a external kernel module development example that works?
forum.openwrt.org/viewtopic.php?id=20066 Writing and Compiling A Simple Program For OpenWrt
OpenWrt / how to "make" a single package with the kamikaze SDK ???
forum.openwrt.org/viewtopic.php?id=19545 日文中的1 2 3 4 5 6 7 8 9 0 这几个数字的平假名和片假名各是怎么写的?_百度知道
zhidao.baidu.com/question/81772923.html?fr=qrl&fr2... 日文中的1 2 3 4 5 6 7 8 9 0 这几个数字的平假名和片假名各是怎么写的?
Inside the Linux Packet Filter
民建中央呼吁立法加强保护个人信息数据安全
民建界别建议发展我国软件产业开放标准
Carma Hinton
做小生意必备的头脑
黄光裕死结:中关村 借壳者鉴
环球企业家:国美癌变全解剖
一个主操盘手披露的真实坐庄内幕
Russia Opens LNG Plant to Supply Asia With Fuel - NYTimes.com
www.nytimes.com/2009/02/19/business/worldbusiness/... Russia, Looking Eastward, Opens a Gas Plant to Supply Asian Markets
Welcome to the Social Dance Club at the University of Houston
Technology's next frontier: In-car computing - CNN.com
www.cnn.com/2009/TECH/01/09/ces.cars.computers/ind... Technology's next frontier: In-car computing
Crunchies
长短经
Neuro-linguistic programming - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Neuro-linguistic_programming Neuro-linguistic programming
4万亿投资重点刺激9产业 钢铁汽车振兴规划将出
后来我在上海微软任总经理时,手下的员工里有很多人毕业于复旦。我也去复旦作过很多次演讲。看着他们,心里还是有一点感触。但我是比较乐观的人,我很庆幸自己没有去读复旦。如若当年真考入自己心目中理想的学校、理想的专业,或许如今的我只是众多80年代大学毕业生中的普通一员,在某个政府机关或某家国有企业担任不大不小的领导职务,或者在某所大学里任教,为教授评选资格熬白了头发。我的人生轨迹可能就因此而完全不同了。所以,我特别想告诉很多年轻朋友:
其实这也是很多公司和职场人的通病:战略上理想化、浪漫化,而战术上很苦、很累。其结果往往是徒劳无功。所以,
在硅谷的这次座谈会上,还碰到很多其他创业优秀的留学人员,也有很多在跨国公司任职的高管,如雅虎的高级执行副总裁陆奇博士等。他们在硅谷的成功得益于硅谷的创业环境、创业文化和创业条件。正如朱敏所说,他们在硅谷主要就是BtoB,BtoC,但回到中国,还需要BtoG(government政府),创业条件赶不上硅谷。希望国内能进一步改进创业环境,提倡创业文化,能吸引更多的留学人员回国创业。
中国留学生为何偏爱在美国硅谷创业
温家宝:赞同教育资金来源多样化
早期潜能开发教育
呼唤企业家精神 坚持梦想敢于担当 (2008/12/08 17:25)
马云悟道
“阿米巴经营”的秘密
Matrilineality
在他的团队中有两个很重要的门徒李鸿新和严镜海,李小龙常常有一些关于武术锻炼器 材的构想,然后告诉这两名弟子,并且让他们负责制造出这种训练器材。 这种制度颇有点类似爱迪生的发明办公室,实际上爱迪生当年的很多发明也是由其本人提出设想,他的助手负责去具 体制造和完善。李小 40、经营者要善用人才,并创造一个让员工能发挥所长的环境。学历就好比商品上的标签,论才用人要看品质,不要只注重标签价码。
39、人才是企业成败的关键,惟有顺其自然,不凭自己的好恶用人,容忍与自己个性不合的人,并尽量发挥其优点,才能造就人才。提拔年青人时,不可只提升他的职位,还应该给予支持,帮他建立威信。
38、没有研究心的人不会进步。所以,中央研究的成立,就是要以电器的研究,来促进人类繁荣与同业的发展,就如同开发新药一样,不断研究新电器供应世人。
26、虽然起步迟,只要不畏挫折,坚持到底,照样能超越他人。
24、做生意,要有洞察先机、先发制人的能力、因为这是真刀真枪的决斗,只许赢,不许输。
16、不论处在任何状况,都要有发现光明之路的能力,有视祸为福的坚毅决心。
如果你坚持要上二楼,就会想到搬扶梯;你只想试一试,那就什么都想不到。
参议院议员中村锐一说:松下先生会被实业界称为“神”,大概是因为他以实益性去说服人。 大阪人不喜欢管恩斯如何、加尔布雷斯如何;他只是以电脑般的察觉力,用平实易懂的话来谈:“要怎样赚钱呢?”等等。同样是刻苦成功的人,松下先生丝毫没有自夸的高论,而且他那种人格自然流露无比的说服力,是无法模仿的。或许是关西腔的柔和、率直,会使人产生“对这人可以放心了吧”的想法。这无比的说服力,或许就是基于他“让我们站在同一边,肩并肩(不是面对面)地谈吧”这种根本哲学。
参议院议员安西爱子评价说:松下先生身为世界级的大企业家,对正直人应有的态度,仍时时不离脑海。日本战败后,道德教育全被删除,他忍不住去查遍其他国家严格的教育制度,连文教委员也不如他研究得透彻。今后,已逐渐从学历转移为学习社会。松下先生的生存奋斗方式,将更受重视。即使时代背景不同,这位大前辈对现代青年,永远是不可少的鼓励和心灵寄托。
王永庆在总结台塑企业的发展过程时说:“如果台湾不是幅员如此狭窄,发展经济深为缺乏资源所苦,台塑企业可以不必这样辛苦地致力于谋求合理化经营就能求得生存及发展的话,我们是否能做到今天的PVC塑胶粉粒及其他二次加工均达世界第一,不能不说是一个疑问。他又说:“研究经济发展的人都知道,为什么工业革命和经济先进国家会发源于温带国家,主要是由于这些国家气候条件较差,生活条件较难,不得不求取一条生路,这就是压力条件之一。日本工业发展得很好,也是在地瘠民困之下产生的,这也是压力所促成的;今日台湾工业的发展,也可说是在“退此一步即无死所”的压力条件下产生的。”
在世界化工行业,台塑董事长王永庆在台湾是一个家喻户晓的传奇式人物。他把台湾塑胶集团推进到世界化工工业的前50名。台塑集团取得如此辉煌的成就,是与王永庆善于用人分不开。多年的经营管理实践令王永庆创造出一套科学用人之道,其中最为精辟的是“压力管理”和“奖励管理”两套方法,
王永庆经营成功的八个秘诀: 追根究底:对问题不追究到水落石出,绝不罢休 务本精神:凡事只求根本,只求合理,不问结果 瘦鹅理论:忍饥耐饿,坚韧不屈,等待机会的到来 基层做起:脚踏实地,按部就班,从基层做起,成功的机会就愈大 实力主义:学历不等于实力,实务经验愈丰富,成功的机会就愈大 切身感:制定让员工有切身感的管理制度,发挥员工最大潜能 价廉物美:坚持供应价廉物美的原料给下游客户,企业得以蓬勃发展 客户至上:买卖双方唇齿相依,给客户利益自己才能有最大利益 Chinese buy into currency war plot | The Australian
www.theaustralian.news.com.au/story/0,,22487560-36... Chinese buy into currency war plot
The Singularity Is Near - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/The_Singularity_Is_Near The Singularity Is Near
Go
to Singularity The Movie
BBC NEWS | Asia-Pacific | China dips its toe in Gulf of Aden
news.bbc.co.uk/2/hi/asia-pacific/7789901.stm This is a significant first for China, both strategically and diplomatically. China's navy has tended to operate relatively close to its home ports.
BBC NEWS | Asia-Pacific | China dips its toe in Gulf of Aden
news.bbc.co.uk/2/hi/asia-pacific/7789901.stm The Gulf of Aden is a region of key strategic importance for China, whose growing economy depends heavily upon a secure supply of oil and raw materials from abroad. Some 60% of China's oil comes from the Middle East - much of it through this waterway and it is also an important route for shipments from Africa. YouTube - Daniel Craig & Sienna Miller in "Layer Cake" (2004)
www.youtube.com/watch?v=bYdDnyEKows&feature=relate... CRM - The Leader In Software-as-a-Service (SaaS) - salesforce.com CRM - salesforce.com
www.salesforce.com/ Google
Google Answer to Filling Jobs Is an Algorithm - New York Times
www.nytimes.com/2007/01/03/technology/03google.htm... Google Answer to Filling Jobs Is an Algorithm
Jobs: Android Hurts Google More Than It Helps - Mobile Blog - InformationWeek
www.informationweek.com/blog/main/archives/2008/01... Jobs: Android Hurts Google More Than It Helps
自由主义与新左派之争
Telecommunications industry in China - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Telecommunications_industry_... Telecommunications industry in China
A third observation about the example is that the objective function
in this case does not account for the variation in outcomes. The model
minimizes an expected cost, and its optimal policy gives costs of $1100,
$1400, and $1700 under each scenario. If this were a one-shot decision
then this spread of outcomes might be seen as unacceptable for the gas
company owner if they are unwilling to accept some outcome that costs $1700.
Modelling different attitudes to risk is possible in the stochastic programming
framework by using piecewise linear, or more general nonlinear, objective
functions.
本书的主角武藏,终其一生皆在为这种本能之苦而战斗。宿命之苦永无止境,武藏生存在浩瀚无涯的天地之间,相形之下,他的剑渺小得犹如一根针。虽然如此,剑却代表了武藏内心的形象。
An
important (current) restriction for stochastic programming problems - in
contrast to dynamic programming problems - is that the probability
distributions of the random parameters are assumed to be given, and cannot
depend on the decisions taken.
Web 2.0 entrepreneur cashes out just in time - CNN.com
www.cnn.com/2008/TECH/12/10/ali.entrepreneur.esgut... The 26-year-old, a former Microsoft employee who helped put together the Windows Home Server product, founded a company called Esgut within months of the debut of Facebook's developer platform in May 2007. Esgut is a portfolio of Facebook applications, and a few of them, like Superlatives and Entourage, became genuine viral hits.
Artificial Intelligence Techniques Enhance Business Forecasts - Graziadio Business Report
gbr.pepperdine.edu/022/intelligence.html Artificial Intelligence Techniques Enhance Business Forecasts
SOHO小报:你能想到的最喜欢的女性形象是什么样? 艾未未:一定要说的话,我觉得是《聊斋》里的狐狸精。因为你永远不知道她以什么方式出现,以什么方式消失,她很神秘,而且她的善良是真实的善良,因为她不食人间烟火,跟世间的事情没有利益的纠葛。 SOHO小报:那你觉得“男女平等”的诉求意义何在? 艾未未:男女平等我觉得是建立在一个更广的意识上的,比如说人是平等的,人和动物是平等的。现在通常意义上说的男女平等就是女人要和男人做一样的工作,挣一样的钱,坐到一样高的位置,我觉得这是对男人和女人的一种误解,是对男女先天存在的性别差异的很粗暴的做法。男人女人功能不同,男人怎么能争取到和女人一样的平等呢,可能女人需要关爱,男人需要打打杀杀,表面上男女平等其实没有意义,可能一个女人她完成了先天的功能她就很幸福了,而男人可能终其一生都得不到幸福,无论他有多大的成就。所以我觉得男人是一个宿命的东西,注定是一个悲剧。女人是可以通过分解她身体的一部分使生命延续来寻求幸福,而男人不能。 SOHO小报:波伏娃说“女人不是天生就是女人的,而是变成女人的”,你可能不认同? 艾未未:我想这样说太低估了上帝造人的深意和本意。你观察一个小男孩和一个小女孩,那个小女孩会天然地对一些柔软的,可爱的东西感兴趣,因为女人的身体结构里设计了生育的功能,所以她有与保护她的身体结构的措施,包括她的喜好、情感等。上帝造人还是功能第一,男人和女人是功能的,不是美学的,我们应该相信,由于男人女人有先天的性的不同功能,使女人与男人有完全不同的情感意识和行为方式。 Incompressible flow
Peak oil
Petroleum politicsit does not have any nontrivial realization whose a±ne span
is Rh, where h > d. ??? unique realization uniquely localizable strongly localizable A is SDP -> tr(A) all none negative?? Yij^2<YiiYjj if Y is SDP?? Affine transformation - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Affine_transformation Degeneracy (mathematics) - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Degeneracy_(mathematics) Six-Day War
Lanchester's lawsFrom Wikipedia, the free encyclopediaJump to: navigation, search
Lanchester's laws are mathematical formulae for calculating the relative strengths of a predator/prey pair. This article is concerned with military forces. The Lanchester equations are differential equations describing the time dependence of attacker and defender strengths A and D as a function of time, with the function depending only on A and D.[1] In 1916, during the height of World War I, Frederick Lanchester devised a series of differential equations to demonstrate the power relationships between opposing forces. Among these are what is known as Lanchester's Linear Law (for ancient combat) and Lanchester's Square Law (for modern combat with long-range weapons such as firearms). Lanchester's laws and business strategyIn the 1960s Lanchester's laws found favour with a segment of the Japanese business community [2] popularised by the business consultant Nobuo Taoka. The laws were used to formulate plans and strategies to attack market shares. The Canon–Xerox copier battle in the UK, for example, reads like a classic People's war campaign. In this case, the laws were used firstly through the establishment of a "Revolutionary base area" by concentrating resources on a single geographical area until dominance could be achieved, in this case in Scotland. After this, they carefully defined regions to be individually attacked again with a more focused allocation of resources. The sales and distribution forces built up to support these regions in turn was used in the final "determined push in London with a numerically larger salesforce". If
__all__ is not defined, the statement from sound.effects
import * does not import all submodules from the package
sound.effects into the current namespace; it only ensures that the
package sound.effects has been imported (possibly running any
initialization code in __init__.py) and then imports whatever names are
defined in the package. This includes any names defined (and
submodulesmachine learning
PAC Model-Free Reinforcement Learning
中国首富黄光裕肮脏的发家史 - 百姓爆料 - 海峡社区 海峡社区|中国海峡网 - Powered by Discuz!
bbs.haixiachina.com/viewthread.php?tid=14973 China's richest man, Huang Guangyu - a courteous billionaire - Times Online
www.timesonline.co.uk/tol/life_and_style/men/artic... Electronics Magnate's Fate In Beijing's Hands - Forbes.com
www.forbes.com/markets/2008/11/24/huang-guangyu-go... China Prepares for Urban Revolution - BusinessWeek
www.businessweek.com/globalbiz/content/nov2008/gb2... China Prepares for Urban RevolutionBy 2025, at least 220 Chinese cities likely will have more than 1 million people. Such a colossal population shift requires massive building"The No. 1 challenge for China will be creating enough jobs—and many of those will have to come from the service sector," says Woetzel. Surprise: Japanese, Korean Carmakers Want a Detroit Bailout - BusinessWeek
www.businessweek.com/globalbiz/content/nov2008/gb2... Surprise: Japanese, Korean Carmakers Want a Detroit BailoutFor Toyota, Honda, and Hyundai, a collapse of GM, Ford, or Chrysler would create more problems than opportunitiesHow the Philippines Can Be a Solar Power - BusinessWeek
www.businessweek.com/globalbiz/content/oct2008/gb2... How the Philippines Can Be a Solar PowerWith SunPower and Solaria already operating solar manufacturing plants here, the Philippines could become a profitable "Solar Valley"Amazon.com: The Adventures of Johnny Bunko: The Last Career Guide You'll Ever Need: Daniel H. Pink,
www.amazon.com/Adventures-Johnny-Bunko-Career-Guid... The Adventures of Johnny Bunko: The Last Career Guide You'll Ever Need (Paperback)
802.11 back off
Top 10 Business Movies of All Timehttp://www.youngmoney.com/entertainment/movies/204http://www.entrepreneur.com/movieentrepreneurs/index.html http://www.msnbc.msn.com/id/26891457/ http://www.msnbc.msn.com/id/5497582/ http://busmovie.typepad.com/ http://www.amazon.com/Top-Business-Movies-In-Order/lm/1SIHI5OG8963D CAAM 554: Convex Optimization, Fall 2008
simplex method interior-point methods #3965 ([patch] Slovenian Django javascript translation) - Django ...
code.djangoproject.com/ticket/3965 Apr 8, 2007 ... Add/Change #3965 ([patch] Slovenian Django javascript translation). Your email or username:. Comment (you may use WikiFormatting here): ...
Nan's Games & Comics Too
Gamestop
Phone: (713) 663-6900 Toys R US
Phone: (713) 769-8697 Meet Django
Programming RubyThe Pragmatic Programmer's GuideFirst Edition (*)some books:
paper reading:
Major Breakthrough: Music's 'DNA' Decoded | Listening Post from Wired.com
blog.wired.com/music/2008/08/major-breakthro.html http://www.businessweek.com/globalbiz/content/aug2008/gb2008088_236082.htm
What Will the Olympics Do for China?Potential problems range from too much pollution to an act of terrorism. But a successful Olympics could improve Beijing's standing in the worldEdward O. Thorp - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Edward_O._Thorp#Applied_rese... It is also worth noting that Thorp's blackjack research is one of the very few examples where results from such reached the public first, completely bypassing the usual academic journal publications and peer review process cycle. Moreover, Thorp became one of the very few, if any, applied mathematicians who risked physical harm in verifying a computer simulation. He has also stated that he considered the whole experiment an academic exercise.[4] This also marked the first time in the history of computing that a computer was used as a gambling aid.
Posted by
timothy
on Tuesday July 29, @02:43PM from the hoping-for-even-cheaper-subnotebooks dept.
Posted by
kdawson
on Tuesday July 29, @01:50AM
from the unblinking-eye dept.
Repton writes with news of a company, Behavioral Recognition Systems, that has received 16 patents on a new video surveillance application that can convert video images into machine-readable language, and then analyze them for anomalies that suggest suspicious behavior in the camera's field of view. The software can 'recognize' up to 300 objects and establish a baseline of activity. It should go on sale in September. "...the BRS Labs technology will likely create a fair number of false positives, [the CEO] concedes. 'We think a three-to-one ratio of alerts to actual events is what the market will accept,' he says. 'We could be wrong.'"
Posted by
kdawson
on Monday July 28, @11:05PM
from the don't-stamp-so-hard dept.
Iddo Genuth writes "Alaskan state officials have recently announced their intention to begin funding the exploration and surveying of Alaska's largest volcanoes in hopes of utilizing these as a
source of geothermal energy. They say this volcano could provide enough energy to power thousands of households, and according to some estimates, Alaska's volcanoes and hot springs could supply up to 25% of the state's energy needs."
paper reading: Algorithms for Low-Latency Remote File Synchronization
set reconciliation http://technet.microsoft.com/en-us/library/ms187103.aspx http://en.wikipedia.org/wiki/De_Bruijn_graph paper reading: a tutorial on decomposition methods for network utility maximization
mobile operating systems
http://www.reghardware.co.uk/2008/06/05/smartphone_os_linux/
http://www.limofoundation.org/what-is-the-platform.html http://code.google.com/android/ http://www.osimworld.com/newt/l/handsetsvision/osim08/ http://www.gizmos2go.com/hp-ipaq-hw6515-mobile-messenger-fa639aaba.html http://www.linuxdevices.com/products/PD7399900675.html http://en.wikipedia.org/wiki/Access_Linux_Platform operating system
UNIX
CMS BSD Virtual Memory page referenced bit LRU SWS PR-bit, valid bit, two context switches Multics Clock policy two hand policy What space is the memory management process running? Mach http://en.wikipedia.org/wiki/Mach_kernel multi-processor support Threads vs copy-on-write Distributed Shared Memory Munin http://citeseer.ist.psu.edu/5317.html eager release TreadMarks http://www.cs.rice.edu/~willy/TreadMarks/overview.html lazy release Midway http://citeseer.ist.psu.edu/bershad91midway.html ?? ping pong effect ??invalidation protocal Cache replacement policy 2Q? ARC Spin ??collocation modula 3 why can spin overcome the speed issue of microkernel os? Nooks PCC SAFE KERNEL EXTENSIONS WITHOUT RUN-TIME CHECKING formal safety proof proof validation http://raw.cs.berkeley.edu/pcc.html#experiments http://en.wikipedia.org/wiki/First-order_logic http://en.wikipedia.org/wiki/LF_(logical_framework) ??forged proof? Midterm fast file system block size consideration cylinder group internal fragmentation: sub-blocks VM context switch overhead: clock hand scan rate swap area? evolving page policies:two hands page on file system dirty code segement? address map limitation of LRU: not scanning resistent kernel fine grained protection domain copy kernel data structure for extension: kernel structure won't be left in undefined state extension doesn't do inconsistent modification of the kernel easy to recover: restart extension overhead: checking, copying kernel data structure can't recover file system inconsistency ?scan resistant sequential process communication csp http://en.wikipedia.org/wiki/Communicating_sequential_processes Totem Lamport’s causal order multiple ring: dummy message http://en.wikipedia.org/wiki/Venona_project Kerberos ??? short ticket time: short delay between password and full action RAID http://www.pcguide.com/ref/hdd/perf/raid/levels/singleLevel3-c.html http://www.pcguide.com/ref/hdd/perf/raid/concepts/perf_ReadWrite.htm small write problem raid 3? larger memory : cache will capture most read accesses? no Log based file system synchronism writes http://www.usenix.org/publications/library/proceedings/als01/full_papers/venkatesh/venkatesh_html/node21.html inode map write cost http://www.eecs.berkeley.edu/Research/Projects/CS/sprite/sprite.html Journaling vs soft updates delete directory inode first , then file inode? wafs NFS Midterm Friday: review session sequential sharing toteom: how to guruntee total order of messages. security: skip confinement problem. raid 1, raid 5, small write problem LFS paper. how LFS improve FFS Journaling and softupdates: NFS: statelessness, robustlessness, performance price lamport physical clock protocal. what's the function of NFS stale file handle: file generation number A Case For Adapting Channel Width in Wireless Networks
?? The gain is maximum in the Far-near case because sharing the same channel introduces the rate anomaly problem by which the slower flow reduces total capacity. narrower channels have a smaller per-packet relative overhead. ?? " We note that even though we do not increase total spectrum usage by splitting flows, we do increase total transmit power because narrower channels have higher power (although the same energy). It is thus an open question if the gain from such division persists in large-scale systems. " can't we ajust the transmission power accordingly? " Clearly, probing this entire search space is inefficient and we need methods that quickly converge to the optimal point. " well, it's only 32 "T (B) = B · R(B)" data rate and modulation? Distributed Robust Optimization for Communication Networks
http://en.wikipedia.org/wiki/Dual_problem Wrap testbed deployment:
ahdemo mode of madwifi driver: wlanconfig ath0 create wlandev wifi0 wlanmode ahdemo agent process deployment: deploy one complete image copy its fs online new system install business simulation games:
single player games: capitalism capitalism II industry tycoon(basicly it's a supply chain game) http://titan.ja.org/ : only one industry: holo gen! http://www.informatist.net/: text only http://www.industryplayer.com/ : real time online multilayer game. yes, real time!! non-linear and mixed integer optimization:fundamentals and applications
page 53 the gradient of equality constraints are linearly independent(i.e., x is a regular point) in general x=x(b), lambda=lambda(b) page 117 l1 or l(inf) sum of constraint violations l1-minimization problem: minimization of L1 norm: http://mathworld.wolfram.com/L1-Norm.html l inf-minimization problem: minimization of L inf norm: http://mathworld.wolfram.com/L-Infinity-Norm.html page 117: minimization is not ?? persudo convex quasi-convex subgradient: http://en.wikipedia.org/wiki/Subderivative use hessian to determine convexity(concavity) if a function: http://www.economics.utoronto.ca/osborne/MathTutorial/CVNF.HTM affine function http://mathworld.wolfram.com/AffineFunction.html page 87 ?? the master is greater than dual Characterizing the Capacity Region in Multi-Radio Multi-Channel Wireless Mesh Networks
Murali Kodialam Bell Labs, Lucent Technologies Holmdel, NJ 07733. USA muralik@lucent.com Thyaga Nandagopal Bell Labs, Lucent Technologies Holmdel, NJ 07733. USA thyaga@lucent.com a network model for multi-channel wireless network. necessary condition for rate vector static/dynamic channel assignment scheme Capacity of Multi-Channel Wireless Networks:Impact of Number of Channels and Interfaces
"In this paper, we have derived the lower and upper bounds on the capacity of static multi-channel wireless networks. We have shown that in an arbitrary network, there is a loss in network capacity when the number of interfaces per node is smaller than the number of channels. However, we have shown that surprisingly, in a random network, a single interface suffices for utilizing multiple channels, as long as the number of channels is not too large. We have also shown that interface switching delay has no impact on capacity, provided each node is provisioned with a few extra interfaces. It is part of our ongoing work to extend these results to mobile networks as well. We also plan to apply the insights gained from this work to build practical routing and MAC algorithms that approach the capacity limit " The above results are for channel model 1, in which the total bandwidth utilized doesn't vary. The network capacity is measured in terms of “bit-meters/sec” switching delay won't have much impact on the network provided that every node has a few extra interfaces. animation on linux
ktoon synfig Routing and Link-layer Protocols for Multi-Channel Multi-Interface Ad Hoc Wireless Networks
We propose a link layer protocol to manage multiple channels, and it can be implemented over existing IEEE 802.11 hardware. We also propose a routing protocol that operates over the link layer protocol, and is specifically designed for multichannel, multi-interface ad hoc wireless networks. "Several researchers have proposed MAC protocols for utilizing multiple channels [7]–[12]. These multi-channel protocols require changes to existing standards, such as IEEE 802.11, and therefore cannot be deployed by using commodity hardware. In contrast, our proposal can be implemented with standard 802.11 interfaces. Adya et al. [13] propose a link-layer solution for striping data over multiple interfaces, but their solution is designed for the scenario where number of interfaces is equal to number of channels. Bahl et al. [14] propose SSCH, a link layer solution that uses a single interface, and can run over unmodified IEEE 802.11 MAC. In contrast, our link layer protocol is designed for multi-interface networks, and we complement the link layer protocol with a routing protocol as well. " "For simplifying the description of the protocol, we assume M = 2;K = 1 for all nodes, i.e., there is one fixed, and one switchable interface" cunqing's assignment paper:
mixed interger non linear programming bender's decomposition primal/master dual problem Infeasible primal reading notes: Dichotomy: A Practical Architecture for Multi-channel IEEE 802.11 Multi-hop Networks
round robin RDT MMAC SSCH 802.11 TSF virtue of Dichotomy: flexible link level channel switching hopper/anchor seperation scatter net reading:
scatternet: optimization is not extensively studied in this area. so called optimizations are just distributed local optimization common approaches: 1. start from a plausible structure. 2. define "moves" to vary upon this structure 3. use moves to do local optimization. Bluetooth Scatternet Optimization with Hop Count Minimization: Our work builds on an optimization problem regarding the hop count minimization in scatternets. We provide a formal definition to this problem taking advantage of our matrixbased scatternet model that reflects the links and relationships between the nodes of the scatternet topology. For solving this optimization problem we defined and implemented four types of so-called moves, which are series of modifications on the master-slave relationship of the nodes. Thus, by performing a move, a node can switch to a new master (SS move), create a new piconet by becoming a master itself (SM move), give up its role of master and connect its slaves to other masters (MS move) and merge to its own piconet that of another master (MM move). Taking advantage of these moves and the matrixbased scatternet model we defined a set of algorithms capable of reconfiguring the scatternet topology such that to reduce the number of hops between the communicating nodes [5]. Distributed Self-Healing and Variable Topology Optimization Algorithms for QoS Provisioning in Scatternets In [13], loop scatternet formation is presented In [15],Tan et al. introduce the tree scatternet formation (TSF) protocol; Some other works discuss scatternet topology optimization. This issue is faced in [23] and [6] by adopting centralized approaches. "A scatternet must be formed by means of distributed algorithms running on each device. By means of these algorithms, nodes must discover their neighbors, establish links, and interconnect piconets, leading to a suitable topology." Furthermore, a scatternet formation algorithm should have the following properties: a) guarantee full connectivity to all the involved devices even in multihop scenarios, when devices are scattered in an area where not all of them are within radio range of each other (also referred to as multihop scenario); b) achieve full connectivity after limited time; c) guarantee a self-healing behavior in variable network conditions; in particular the algorithm should handle: i) entrance of new nodes in the network; ii) mobility or failure/deactivation of nodes; d) guarantee multiple and short paths between any pair of nodes; e) optimize the topology according to suitable performance metrics (e.g., overall network capacity). SHAPER-OPT: A. Step 1: Forming a Connected Tree via SHAPER B. Step 2: Optimizing the Topology via DSOA C. Step 3: Maintaining the Logical Tree for the Self-Healingness Ad hoc networking with Bluetooth: key metrics and distributed protocols for scatternet formation "a distributed algorithm for scatternet topology optimization is introduced, that supports the formation of a "locally optimal" scatternet based on a selected metric. Numerical results obtained by adopting this distributed approach to ‘‘optimize’’ the network topology are shown to be close to the global optimum." Combinatorial optimization http://en.wikipedia.org/wiki/Combinatorial_optimization metaheuristic algorithms optimization
Optimization Using Neural Networks http://portal.acm.org/citation.cfm?id=126183.126194 "The design of feedback (or recurrent) neural networks to produce good solutions to complex optimization problems is discussed. The theoretical basis for applying neural networks to optimization problems is reviewed, and a design rule that serves as a primitive for constructing a wide class of constraints is introduced. The use of the design rule is illustrated by developing a neural network for producing high-quality solutions to a probabilistic resource allocation task. The resulting neural network has been simulated on a high-performance parallel processor that has been optimized for neural network simulation." Mixed-Integer Nonlinear Programming www.gamsworld.org/minlp/siagopt.pdf " Recent research has also focused on combining of Random Search (RS), such as Tabu, Scatter Search, Simulated Annealing or Genetic Algorithms, with NLP methods. Recent implementations like OQNLP [12, 30] and LaGO [21, 22] have proven to be quite successful. Finally, the area of Disjunctive Programming uses disjunctions and logic propositions to represent the discrete decisions in the continuous and discrete space respectively. Disjunctive programs, conveniently modeled and automat- ically reformulated in big M or convex region models, give access to a rich area of applications. Widespread interest in such models has spawned a new computing environment (LogMIP [31]), developed specifically for generalized disjunctive programming. " disunctive programming www.gams.com/presentations/present_disj.pdf "" Nonlinear and mixed-integer optimization : fundamentals and applications / Christodoulos A. Floudas http://library.uh.edu/search?/Xnonlinear%20and%20Mixed%20Integer%20Optimization&CFID=298573&CFTOKEN=91041869&SORT=D/Xnonlinear%20and%20Mixed%20Integer%20Optimization&CFID=298573&CFTOKEN=91041869&SORT=D&SUBKEY=nonlinear%20and%20Mixed%20Integer%20Optimization/1%2C2%2C2%2CB/frameset&FF=Xnonlinear%20and%20Mixed%20Integer%20Optimization&CFID=298573&CFTOKEN=91041869&SORT=D&1%2C1%2C nonlinear programming, dimitri P. regular feasible: constraints satisfied feasible variation: first order feasible variation: ?? strict local minimum Weierstrass's theorem some old stuff that i don't remember: http://en.wikipedia.org/wiki/Vector_calculus http://en.wikipedia.org/wiki/Matrix_calculus something wrong with the proof in page 288: A*inv(A'*A)*A'!=I
\nabla\left|\left|x^2\right|\right| = 2x http://mathworld.wolfram.com/VectorDerivative.html Labels:
optimization Bruce Lee: Tao of Jeet Kune Do (selections from the book)
spiritdimension.com/martial-arts-texts/bruce-lee-t... Bruce Lee: Tao of Jeet Kune Do (selections from the book)Who are the super financiers of biotechnology?
http://www.nature.com/bioent/2003/030501/full/bioent733.html IP/Technology Transferhttp://www.nature.com/bioent/2008/080401/full/bioe.2008.4.html三力士(002224)首次公开发行股票招股意向书--WWW.CNLIST.COM 中国上市公司资讯网
news.cnlist.com/CnlistNewsDetail.aspx?tablename=gs... 三、简要会计报表
一)合并资产负债表主要数据 (二)合并利润表主要数据 (三)合并现金流量表主要数据 流动比率 速动比率 审计报告 古之成大
事者,规模远大与综理密微,二者阙一不可
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