t**********3
发帖数: 12623 | 1 October 4, 2013
About the Model?S fire
By Elon Musk, Chairman, Product Architect & CEO
Earlier this week, a Model?S traveling at highway speed struck a large metal
object, causing significant damage to the vehicle. A curved section that
fell off a semi-trailer was recovered from the roadway near where the
accident occurred and, according to the road crew that was on the scene,
appears to be the culprit. The geometry of the object caused a powerful
lever action as it went under the car, punching ... 阅读全帖 |
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x**********i
发帖数: 4964 | 2 diameter< a quarter about 40$
but propagation without guarantee in the future |
|
x**********i
发帖数: 4964 | 3 Propagation of the fracture exhibits brand new face every morning
Quarter size is almost the limit to fix , no cure for the 30cm one
It is around 3-500$ |
|
b**a
发帖数: 1009 | 4 看到有人遇到车祸不知咋办，刚好看到篇文章，希望有人受益。摘抄，略有删减。
You already know about contacting the police, filing an accident report, and
notifying your insurance company. But here are five steps that can
literally save your financial hide should you be involved in an accident
that results in a dispute, perhaps even landing you in a courtroom.
1. Take Pictures
You don't have to get out of the car when you do this. Just snap a few
photos with your cell phone from your driver's seat that clearly shows the
area of impact ... 阅读全帖 |
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a****2
发帖数: 3735 | 5 太精彩了！
This is a story of hubris, determination, emissions, an Impala, and, of
course, the amazing Soichiro Honda. It's a reminder that innovation can beat
strength, and that the most defining characteristic of any giant is not its
size, but it's susceptibility to cleverness.
I'm sort of amazed we've never officially talked about this here on Jalopnik
, because it's an amazing story. It's a story you may have heard before, but
it's absolutely worth repeating.
The most often cited version of the s... 阅读全帖 |
|
e****m
发帖数: 428 | 6 [出售]Books are In excellent condition, $5/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 7 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 8 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 9 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 10 出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An In... 阅读全帖 |
|
e****m
发帖数: 428 | 11 出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An In... 阅读全帖 |
|
d*****e
发帖数: 3868 | 12 We're sorry, an unexpected error occurred with your submission.
有时候说成功了，其实没成功，
You have successfully updated your listings. It may take up to 15 minutes
for your changes to propagate to all systems.
等15分钟或者更长时间看价格还是没变。
太坑爹了 |
|
q******g
发帖数: 390 | 13 https://www.fastlane.nsf.gov/a6/A6RC_THISWEEK.html
43. CAREER: Novel Approaches and Instrumentation for 21cm Cosmology
Experiments
Award#:1352519 Current Year Award Amount:$787,369 Cumulative Award Amount:$
787,369 Estimated Total Award Amount:$787,369
Original Start Date:Sep 01, 2014 Projected Duration:0 Months
PI: Parsons Institution:U of Cal Berkeley State:California District:13
44. CAREER: Discovering the Underpinnings of Statistical Language
Learning in Infants
Award#:1352443 Curren... 阅读全帖 |
|
发帖数: 1 | 14
Download pdf published by SfN (Chapter from 'The History of Neuroscience in
Autobiography, Volume 8' edited by Larry R. Squire)
Yuh-Nung Jan's CV
Lily Jan's CV
Yuh-Nung Jan and Lily Jan
Birth
Family History and Growing Up
National Taiwan University
The Hiking Trip to Shitou in the Spring of 1967
Graduate School Application
Graduate Study at Caltech (1968锟974)
Seymour Benzer Lab (1974锟977)
Steve Kuffler锟絪 Lab at H... 阅读全帖 |
|
s*******t
发帖数: 7746 | 15 【 以下文字转载自 NextGeneration 讨论区 】
发信人: summercat (夏天的懒猫), 信区: NextGeneration
标 题: 【紧急投票】改写亚裔孩子要比非裔SAT高450分才能入名校的现实
发信站: BBS 未名空间站 (Tue Feb 28 14:01:24 2012, 美东)
请您立即投票赞成（FOR） 80-20全美亚裔教育基金会的民调书
请置顶，请在以下网页签名，请转发！
http://admin.80-20nj.info/cgi/80/e?l=8/11e/f&w=no
发信人: alderbrook (Alderbrook), 信区: Parenting
标 题: 【紧急投票】改写亚裔孩子要比非裔SAT高450分才能入名校的现实
发信站: BBS 未名空间站 (Tue Feb 28 01:38:53 2012, 美东)
【紧急投票动员】改写亚裔孩子要比非裔SAT高450分才能入名校的现实
决战最高法院， 请投庄严一票，来捍卫你孩子公平竞争入学名校的机会
请置顶，请在以下网页签名，请转发！
http://admin.80-20nj.info... 阅读全帖 |
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l*****r
发帖数: 131 | 16 刚收到的，请大家转发给自己的朋友。
紧急动员：决战最高法院， 请投庄严一票
捍卫你孩子公平竞争入学名校的机会
（必须是绿卡或公民才可以投票，谢谢合作。）
历史性的时刻已经到来了：2/21/2012，美国最高法院决定审理用“族裔”的理由来提
高亚裔和白人高校入学门槛的做法是否违宪。您--关爱孩子未来的父母--现在就可以花
一分钟时间来帮助孩子增大孩子上他们理想大学的机会。请您立即投票赞成（FOR） 80
-20全美亚裔教育基金会的民调书，清楚明白地表明亚裔在这件案子上的立场。
http://admin.80-20nj.info/cgi/80/e?l=8/11e/f&w=no
资料显示，亚裔在美国要比其他族裔成绩优秀许多才能上同样的学校。要上同样的名校
，亚裔SAT要考1550分，白人1410分，而非裔只需要1100分*（英文和数学满分是1600）
。亚裔入学这么高的门槛使得许多亚裔的大学申请者非常害怕，有些干脆拒绝列出他们
是亚裔—其实学校一看名字还是能知道哪些孩子是亚裔。。。
下面几周内，我们需要征集到至少五万个签名，让结果写入Amicus Curiae (“法庭之
友”的文书)作为证... 阅读全帖 |
|
e****m
发帖数: 428 | 17 Books are In excellent condition, $5/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An Intro... 阅读全帖 |
|
e****m
发帖数: 428 | 18 [出售]Books are In excellent condition, $5/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 19 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 20 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 21 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 22 [出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An I... 阅读全帖 |
|
e****m
发帖数: 428 | 23 出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An In... 阅读全帖 |
|
e****m
发帖数: 428 | 24 出售]Books are In excellent condition, $3/本+ $3.99S/H./本
1. WCDMA 技术与系统设计 - Harri Holma & Antti Toskala, 周胜译
2. Cellular Mobile Systems Engineering - Saleh Faruque
3. Switching in IP Networks - Bruce Davie, Paul Doolan
4. MPLS - Technology & Applications - Bruce Davie, Yakov Rekhter
5. 第三代移动通信系统原理与工程设计（IS-95 CDMA and CDMA2000) - Vijay Garg,
于鹏译
6。Wireless Communications Principles & ractice - Theodore S. Rappaport
7. Wireless and Personal Communications Systems - Vijay Garg, Joseph Wilkes
8. An In... 阅读全帖 |
|
c**i
发帖数: 6973 | 25 In the posting No. 9, I misspelled "takeawy." It should be "takeaway."
Adequate Intake (AI) is a term coined by Institute of Medicine, and
Recommended Daily Allowance (RDA), Food and Drug Administration (FDA).
In the previous posting, I wrote something which is attached below. It may
be construed that genetic engineered grape(s) is already in the market or in
the pipeline for commercialization.
A check of any GMO database will tell you there is no GMO grape. I apologize.
The second most popular ... 阅读全帖 |
|
z*****9
发帖数: 256 | 26 For more information about whether or not to rinse kefir grains:
DO I NEED TO RINSE KEFIR GRAINS OR FAST THEM IN WATER. WHAT'S BEST?
Under most circumstances kefir grains do not need to be rinsed with water [
or fresh milk] between each milk change, or fasted in fresh cold water
either. If you ever do rinse your grains with water, just be sure to use non
chlorinated, sterile, COLD water [The water should first be boiled then
cooled to room temperature]. Using fresh milk instead of water to rinse... 阅读全帖 |
|
|
G****o
发帖数: 229 | 28 我在听，目前主要是讲如何推箱子
project是做 guitar amp 估计都是重点在做音箱吧
Week 1
Lesson 1: Introduction to wave propagation, simple oscillating systems,
sound pressure, sound waves, the speed of sound, wavelength, frequency and
wavenumber, sound pressure level, and auditory directional cues.
Lesson 2: Electronics fundamentals - charge, current, voltage, resistance,
Ohm’s law, DC circuits, finding currents and voltages in simple circuits
Week 2
Lesson 1: Reflection and absorption of sound, resonances in air columns,
res... 阅读全帖 |
|
l*****x
发帖数: 3431 | 29 3 resolution = bit rate / clock freq /#channel
4 应该是P-type，因为都做在N-well里，可以有效去除substrate propagated noise，
更稳定 |
|
y******r
发帖数: 2986 | 30 【 以下文字转载自 CivilEngineering 讨论区 】
发信人: yalinger (已经告别孤独), 信区: CivilEngineering
标 题: Please give me suggestions for my career path.
发信站: BBS 未名空间站 (Fri Dec 31 12:28:41 2010, 美东)
Hello, everyone,
I will graduate soon from Michigan State University, and I am looking for
new positions. Right now I am a little confused about my career path.
Description below is my brief introduction. I do not know which field is
better to fit me, and please give me any suggestion as you like. Any reply
is highly appr... 阅读全帖 |
|
s********x
发帖数: 914 | 31 难道是build.xml有问题？我用eclipse自动生成的。大家帮忙看看。Ｉ ｈａｔｅ ｔ
ｈａｔ ｒｏｂｏｔ！！！
阅读全帖 |
|
d*******l
发帖数: 338 | 32 我觉得上面的分析不无道理，一旦要输出所有的解很可能就没有办法降低复杂度，这跟
问题本身的性质有关。上面火鸡的方法应该是非常典型，在面试中的首选方法。
如果只是考虑这个问题本身，或许可以尝试下BFS？如果我们已经有一个解，然后所有
的解应该都能通过这个解propagate得到。对每一个1，都尝试把它替换成低位的两个1
。不过这个应该不会有本质的改善.代价就是更多的空间。
另外有个问题？比如9=5+2+2这种表示是不考虑的是吧？就是某个数出现了两次，这样
就没法在二进制表示中体现出来了。
2
2 |
|
Y**i
发帖数: 6922 | 33 Job Description:
General Job Description:
The Radio Frequency (RF) Engineer will be deployed in a project office. This
individual will work to design, develop, and specify RF designs for cell
sites, in particular using GSM/UMTS technology and add LTE to these sites.
The RF Engineer will report to the Senior RF Engineer.
Position Duties and Responsibilities:
Review site surveys, design sites with existing RF configuration for LTE
overlay and create new RF datasheets based on the given information... 阅读全帖 |
|
f*****e
发帖数: 2992 | 34 首先进程i与i+n/2通信，进程i存和。这个为一个step，并行进行。所有进程参与通信。
再进程i与i+n/4通信，进程i存和。进程0至n/2参与通信
.
.
.
最后进程0与1通信，进程0存和。
然后上面过程倒过来propagate sum
总共2log(n) steps.
学过并行算法的这个应该都知道。 |
|
f*****e
发帖数: 2992 | 35 首先进程i与i+n/2通信，进程i存和。这个为一个step，并行进行。所有进程参与通信。
再进程i与i+n/4通信，进程i存和。进程0至n/2参与通信
.
.
.
最后进程0与1通信，进程0存和。
然后上面过程倒过来propagate sum
总共2log(n) steps.
学过并行算法的这个应该都知道。 |
|
P*******1
发帖数: 169 | 36 “For many American PIs, they still write good letters for students even if
they quit.”
So what? So did I. I wrote two letters for my students who quit in the
middle. I said, give me a reasonable reason! This student is already
planning to quit before he even comes. How many American PIs do you know? I
have plenty of them around me that complain a lot about current Chinese
students, and for “National” reasons I had to defend for them, trying to
look for excuses for them. One American professor ne... 阅读全帖 |
|
l*****t
发帖数: 2019 | 37 我还以为是decision tree 的 pruning 和神经网络的backward propagation 的。 |
|
z***m
发帖数: 1602 | 38 最近看了下machine learning，感觉很多idea挺有意思，虽然也不是很新。感觉搞
machine learning研究的，主要都用概率统计，比如Beyesian information 和EE那些
搞信息论，detection and estimation的用的东西很像。
classifer一定程度上，也可以理解成多元检测。
还有EE里搞compressed sensing，在ML里也看到搞dimension reduction用到。
neural network里的back propagation还有点像EE里coding的，都用message passing。
当然了，convex optimization在EE的信号处理和ML里都用到不少。
搞ML是不是很多东西可以借鉴EE里现成的啊？ML里最前沿的研究都是做什么啊？听说
data scientist也不怎么像马工那样写code。
EE（通信理论方向的）转ML，当data scientist是不是也比较自然啊？ |
|
m**l
发帖数: 15 | 39 【 以下文字转载自 JobMarket 讨论区 】
发信人: merl (merl), 信区: JobMarket
标 题: Internship opening at Mitsubishi Electric Labs
发信站: BBS 未名空间站 (Sun Dec 22 20:17:55 2013, 美东)
Mitsubishi Electric Research Laboratories (MERL, based in Cambridge, MA) is
looking for a qualified intern to conduct research in the area of applied
electromagnetics. A solid background in theory and applications of
electromagnetic fields, computational electromagnetic methods, and microwave
engineering is required. An ideal candidate shoul... 阅读全帖 |
|
c***z
发帖数: 6348 | 40 【 以下文字转载自 DataSciences 讨论区 】
发信人: chaoz (面朝大海，吃碗凉皮), 信区: DataSciences
标 题: 最近的一些面经
发信站: BBS 未名空间站 (Tue Jun 10 01:52:38 2014, 美东)
首先说说教训。如果你是技术骨干，那么在介绍项目的时候，得悠着点，注意不能说涉
及保密的东西。这个对于有些人来说是常识，但是对于比较呆的人（比如我），却是需
要栽几个跟头才能学到的。
然后是面经。大概有这么几类的题目：
1，理论类。Netflix爱问，追着我问Random Forest怎么split，怎么cross validate，
还有Neural Network怎么back propagate, 怎么feature selection，用的什么包裹，
什么原理，一直问到survival analysis的公式，很久没用于是歇菜了（和treatment
model混淆了）。对不起内推的大哥了。
2，实践类。小公司爱问，类似于码工面试的设计题。这种情况怎么搞，那种情况怎么
搞，没见到data只能胡说，就说以前我有一个项目，情况有点... 阅读全帖 |
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f*****d
发帖数: 2285 | 41 大家支持一下Uber！
The affordable, reliable rides you love are under threat once again:
tomorrow, the CA Senate Insurance Committee is voting on two bills that
would disrupt ridesharing in the state of California and we need your voice
to send one powerful message: #CAlovesUber!
These bills (AB 2293 & AB 612) are backed by Big Taxi, the insurance
industry and trial attorneys who want to use the regulatory system to their
advantage and undermine the benefits that ridesharing brings to both riders
and dr... 阅读全帖 |
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f***s
发帖数: 112 | 42 没太明白，粗浅理解gossip比较适合对响应不是怎么敏感的boolean信息传递吗？譬如
经典例子就是机器的health信息。
在这个问题场景下怎么解决propagation速度不可控的问题？譬如client在欧洲，手机
在美国，当client上传了一些照片，欧洲的服务器要到哪年才能把这个信息传给美国负
责手机同步的服务器？
我理解这样来处理，一套处理文件的系统，blockserver负责上传数据，并且更新meta
server集群中的信息。
meta server集群中记录文件更改情况和时间，按照时间戳来处理冲突（参考g家牛叉的
spanner）
meta server最后将数据按照primary key进行 partition 然后用consistent hashing
存在不同的存储节点上，存储节点上用leader election写在leader，传递给slaves 用
quorum consistency 保证availability。
当meta server更新结束，给一个distributed queue发送更新指令，说明用户和需要更
新的设备信息，在queue的另一端... 阅读全帖 |
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c*********n
发帖数: 87 | 43 Intelligent Fusion Technology (IFT) is a Research and Development (R&D)
company focused on information fusion technologies from basic research to
industry transition and product development and support. IFT is located in
Germantown, Maryland. We are working on modeling, control, communication,
signal/image/speech/text processing, security, autonomy, and decision making
in networked systems. We are looking for talented developers majoring in
engineering (e.g., EE, ME, AE), computer science, and/o... 阅读全帖 |
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m**l
发帖数: 15 | 44 This opening is for a wireless power transfer project.
Description
MERL is looking for a qualified intern to conduct research in applied
electromagnetics. A solid background in theory and applications of
electromagnetic fields, with numerical simulation and experiment expertise
is required. An ideal candidate should have extensive experience with
electromagnetic field propagation analysis, RF engineering, novel
electromagnetic material/metamaterial and device design, numerical
simulations, exper... 阅读全帖 |
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c***z
发帖数: 6348 | 45
要赞就赞烙印，人家确实团结，妈的
然后是要有策略，人家也没有说我什么，而是就事论事的说他觉得candidate答得没问
题。就是不知道为啥要和我私底下argue，我明明已经解释过了为什么答得不合适。
PS：我挑的问题，一个是neural network的原理，relation between back
propagation and gradient descent；一个是处理noisy data的时候怎么区别signal (
fraud) and noise (bad data)；一个是rare event怎么处理。FICO来的烙印明显没有
处理过这种情况，只能试图把我绕晕。就这样还是principal呢，烙印牛逼。
PS2：其实真正kill烙印的地方是丫显示出想要climb the ladder，我们小地方没有什
么可以climb的。同学们可以参考一下，小地方就不要太强调自己的ambition了。 |
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b*******f
发帖数: 3 | 47 Closure, event propagation, event delegate |
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m******i
发帖数: 26 | 48 frontend
1. 啥是 semantic html5
2. accessibility
3. page performance : cache, javascript code 位置等， 那个 Image Sprites 一
定要提到。
4. css box modules
5. javascript event modules： bubble, propagation 出现录很高
6. javascript closure ， 出现录很高，会细问为啥用 closure ， 写一段让你读。
7. JavaScript Object Prototypes
8. 如何测试IE browser
9. jQuery, backbone, jingo
10. var $= null; 为啥不好 ，如果用jQuery时
11. javascript : split("").reserve.join("");
backend
1. sort array with limited memory
中年人了，其实前端后端都做过，server setup 也做过， mysql 也做过， 但是就... 阅读全帖 |
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t*********r
发帖数: 845 | 49 最近刚刚面了Apple HID group 的 sensor and algorithm组的algorithm engineer,
没有成功。记述一下面试经过，并给自己发广告求内推。
大致经过：
5月底网投。6月底recruiter电话联系。七月初hiring manager电面，就问了问简历
。接着发了三道题，让3天内做完。交上作业后，安排两周后onsite。onsite 9：30开
始，一直到4点。不包括最后的recruiter,共面了7个人，都是白板做题。一周后收到据
信。
onsite详述：
(1) Hiring manager.简单客套之后做题。(a) 两个单频信号，频率相同，如何计算
phase difference; (b)手机通话中，microphone如何cancel speaker sound;
(2) hardware engineer.先问了我做过的一个项目，然后做题。如何用rc电路设计
一个low-pass filter.如果input signal is u(t), what is the output.filter
stability, performan... 阅读全帖 |
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b**********5
发帖数: 7881 | 50 from NY times：
The history class began with a lesson on being manly.
Lin Wei, 27, one of a handful of male sixth-grade teachers at the No. 1
primary school here, has made a habit of telling stories about warlords who
threw witches into rivers and soldiers who outsmarted Japanese troops. "Men
have special duties," he said. "They have to be brave, protect women and
take responsibility for wrongdoing."
Worried that a shortage of male teachers has produced a generation of timid,
self-centered and ef... 阅读全帖 |
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