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全部话题 - 话题: reinforce
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t*********r
发帖数: 2558
1
来自主题: Automobile版 - 关于车身刚性与安全性
cabin区硬是必需的
非cabin区并非软了能吸能了就好
像Corolla, Camry这种车基本属于在材料成本加工和生产成本控制在允许的范围内放弃低速和中低
速碰撞结果来保证中高速碰撞基本不死人,毕竟美国高速车祸多而且容易吸引媒体目光
高档车则全车都在提高刚性,其中Audi和Benz走了两条完全不同的路,Audi为了减重不放弃
Quattro又要走燃油经济性路线,开始大量使用Alloy steel和改性塑料,不评价,5年以后见分
晓。
Mercedes-Benz则全线提高钢用量和强度...
Ultra-high-strength materials
Key aspects of the safety concept at the heart of the new E-Class
include intelligent design and meticulous material selection. More so
than ever before, Mercedes-Benz has given preference to ultra-high-
strength steel a... 阅读全帖
E*********o
发帖数: 5965
2
来自主题: Automobile版 - 日本人为什么收高价却用烂钢
转一个:
铸铁发动机,我也说两句 (日本车托看完后闭嘴吧,别老拿全铝发动机说事)
实在看不下去了,一群开着日车的小样如此得瑟。。。。
以下是我在wikipedia.com上原文粘贴下来的,关于EA888发动机的技术参数。
EA888
160 hp (119 kW) - 170 hp (127 kW) 1.8 TFSI I4
Configuration
1798 cc water cooled inline 4, bore 82.5 mm/stroke 84.1 mm
Head
9.6:1 compression ratio, toothed chain driven camshaft, continuous adjusting
intake
Block
88 mm cylinder spacing, 33 kg grey cast iron (GJL 250) <----------看见了吗?
33千克灰铸铁 (GJL 250)
Crankcase
two toothed chain driven counter-rotating balancing shafts suppressin... 阅读全帖
s****y
发帖数: 3416
3
以我的经验说说吧
我觉得这个社会如你所说很多时候已经是道德沦陷了。。所以JM们,尤其是涉世不深的
单纯的女孩,非常非常容易被
骗。尤其在美国,每个人都很自私,尤其是男人。所以利用别人的不想承诺的男生很多
的。尤其是网站上认识的尤其要
留意,千万不要被花言巧语或浪漫骗了。一开始就要时刻留意自己的目标,就是结婚或
是认真的谈。如果感觉对方没有
共同目标或摸棱两可,就要提防。因为仅仅是拖啊拖的,他们照样得到他们想要的好处
,而你却浪费很多宝贵的青春和
时间,以及感情受到伤害。
所以我觉得这个社会,尤其是法律没有保护,把女性逼回了最原始的社会和自我保护办
法。就是把这些个男的
motivation给止掉。这怎么说了,就是心理学里的把一个人跟你在一起的
reinforcement去掉。
如果这个人是为了性(这是很多坏男的conscious或者unconscious的motivation),那
你就不给他这个。如果她跟你
继续,他就是喜欢你的别的方面,不单只是性。如果他离开,他就是该被流产的怪胎了
(没有别的意思,也可以说是不
健康的胎儿)。
这个时候的付出,就是女生的自觉和忍耐。如果这个口开了就... 阅读全帖
g********t
发帖数: 107
4
来自主题: Family版 - 话不投机半句多呀
you are really sunny! thank you! from your link, I watched this
http://www.youtube.com/watch?v=-63ysqT5nu0&feature=related
(using reinforcement shaping behavior of his roommate in big bang theory
sitcom)
It is soooo hilarious. positive reinforcement. hmmmm, what I can use for a
guy .... definitely not chocolate. help! (cig? no he quitted a while back;
freedom? ... what else could be small and rewarding and repeatable?
Thank you very much!
b*******t
发帖数: 33714
5
来自主题: Food版 - [旧课件] meat
ppt直接导出来的,格式有点乱,不过有耐心的话看看还挺有意思的。
==================================
Part 3: Arts and Methods of Kitchen Arts
TOPIC: MEAT
Cooking meat
Cooking meat is all about producing the right texture and flavours.
Texture concerns the structure of meat.
Flavours are all about chemistry –the Maillard reaction.
Components of muscle
Water: 75%
Protein: 18%
Fat: ~4-10%, varies among different types of meat
Carbohydrate: just over 1%
Vitamins, minerals, various organic compounds…
Sliding-filament model of muscle... 阅读全帖
V*****n
发帖数: 893
6
clamped the center speaker yesterday. very happy with it. it's gonna be
super strong and rigid. it's perfectly straight. all that hard work paid off
. it has 7 internal structural reinforcement, all joints are recessed to
increase rigidity. you have to pay a lot of money on a commercial speaker to
have this level of construction. the towers are all ready for gluing as
well. they have 10 internal reinforcement each. really complicated to make
the way I did it. I doubt I will build a speaker this
Q*******1
发帖数: 91
7
怎么确定是否被学校坑了。给你看一个学校的课程表,你看看会不会被坑呢。
%%%%%%%%%%%%%%%这个是bgsu的课程设置
Fall
MSA 5020 Regression Analysis
MSA 5400 Database Management
MSA 5470 Exploratory Data Analysis
MSA 6010 Decision Optimization
MSA 6701 Analytics Project I
Spring
MSA 5160 Time-Series Analysis and Forecasting
MSA 5600 Business Intelligence
MSA 6440 Data Mining
MSA 6500 Big Data Analytics
MSA 6702 Analytics Project II
Summer
MSA 6450 Advanced Data Analytics
MSA 6600 Project Management
MSA 6703 Analytics Project III
%%%%%%%%%%%%%这个是S... 阅读全帖
Q*******1
发帖数: 91
8
怎么确定是否被学校坑了。给你看一个学校的课程表,你看看会不会被坑呢。
%%%%%%%%%%%%%%%这个是bgsu的课程设置
Fall
MSA 5020 Regression Analysis
MSA 5400 Database Management
MSA 5470 Exploratory Data Analysis
MSA 6010 Decision Optimization
MSA 6701 Analytics Project I
Spring
MSA 5160 Time-Series Analysis and Forecasting
MSA 5600 Business Intelligence
MSA 6440 Data Mining
MSA 6500 Big Data Analytics
MSA 6702 Analytics Project II
Summer
MSA 6450 Advanced Data Analytics
MSA 6600 Project Management
MSA 6703 Analytics Project III
%%%%%%%%%%%%%这个是S... 阅读全帖
m********u
发帖数: 3942
9
这个职位应该会有出差。。。 感兴趣可以站内或者邮件 [email protected]
Staff Algorithm Engineer-Personalized Search/Recommendation Algorithm&Supply
Chain Optimization&Control Theory&Merchant Date Analysis Platform
Responsibility
1. Responsible for algorithm R&D of Search Technology Team in Seattle &
Hangzhou Office: develop new algorithms for improving search/recommendation
revenue, and quality of the whole e-commerce ecosystem;
2. Responsible for analyzing and predicting buyers & sellers behaviors to
explore key fac... 阅读全帖
I******t
发帖数: 829
10
The door is steel. I didn't reinforce yet. Thanks for reminding. Is it ok to
reinforce when the screws is getting loose?
m***y
发帖数: 14763
11
来自主题: Living版 - poured basement 是很大的优点吗?
Again, I sense there might be a confusion with the terms we are using. When
I say 地基, I mean the foundation wall and footing. I'm not talking about
the floor, because unless it's a slab, it doesn't bear any load at all. Even
for slab, the shear stress is negligible (again, expect for CA), and thus
not so much need for steel reinforcement. But for foundation walls, the
reinforcement (steel or non-steel) gotta be there, because concrete can't
handle the shear stress.
c*u
发帖数: 916
12
来自主题: Living版 - poured basement 是很大的优点吗?
We would think that the foundation walls have reinforcement. But the fact
is there isn't for most houses outside California!
Most foundation in US, they first install the wood forms,then pouring in the
concrete, and then done! No reinforcement steel, no welding or tied rebar
cage, nothing.

When
Even
C*****a
发帖数: 1025
13
来自主题: Living版 - 这个房子foundation问题严重吗?
report里有这段:
Horizontal cracking was noted to the foundation at the front side subarea.
This usually is due to the reinforcing steel being too close to outer edge
to the foundation forms when the concrete is first poured. many times when
the foundation cures the crack appears in line with the reinforcing steel (
rebar). This can expose the rebar to excessive moisture, which in turn leads
to rust and corrosion. A thorough evaluation of this condition is beyond
our qualifications. Concerned parties... 阅读全帖
h********o
发帖数: 3320
14
自己换。孔不一样也没有关系,加上door reinforcer,strike plate都要换新的,用
长螺丝把strike plate直接打到stud上。 我就是自己换的,新锁和旧锁的孔位置都不
一样,没有关系,我又新钻了一个孔,和原来的孔有交错,用上个大个的door
reinforcer,更结实。
c*******u
发帖数: 12899
15
☆─────────────────────────────────────☆
venusfairy (venusfairy) 于 (Sat Mar 24 21:20:22 2012, 美东) 提到:
昨天老公说“这十年把你耽误了”因为过去的9年,我跟老公海归,现在回来了,以前
同事比我的职务、工资都高。我倒是觉得这些年非常值得,首先,孩子是自己一手带大
,没有老人和保姆,孩子是自己想要的样子;第二是孩子们在中国的9年使他们学会了
中文读写,也让他们懂得珍惜美国这里的好处;第三是自己做了几年小生意,虽然没有
像别人期望的“挣大钱”,但是了解了很多不同的东西,比如从老板的角度怎么看问题
,所谓“子非鱼”,现在回了美国,发现周围的老中脑子里的中国都是他们出国前的故
事和这边媒体的一面之词,还觉得自己看明白了中国。
先发了,刚才码字一大篇,儿子跑过来给我看他的改造的灯。展示完了,拔错了插头,
我半小时工作全丢了。
☆─────────────────────────────────────☆
niuniu522 (江湖人称牛欣,头号情敌尤菲儿) 于 (Sat Mar 24 ... 阅读全帖
l******d
发帖数: 54
16
来自主题: Parenting版 - 第一逆反期?
抱歉没能及时回复你的帖子,刚回了,才发现这个,再贴过来吧。
“与其说是培养孩子,不如说是先培养自己的情商,然后给孩子做榜样”——举双手赞
成这话。
我认为,面对负面情绪,最好还是慢慢学会控制自己,这样对人对己都好。以前一直觉
得教孩子就象训练动物那样的强化条件反射,所以如果其他办法都不管用,就经常用训
斥、表现得生气等心理学上所谓的negative reinforcement,事实证明这样的行为的效
果和给孩子造成的伤害比起来,是得不偿失的。这也是我为什么对那时的错误感到无比
内疚的原因。任何学习的过程都可以解释为强化条件反射的过程,但对孩子来说,不是
任何强化都有助于学习,negative reinforcement虽然可以校正某些行为,但同时孩子
也会学习用同样的方法处理问题,如果当孩子用和大人一样的方法却得到完全不同的结
果时,孩子还会很迷惑,进而对大人产生不信任。
比较抵触什么trouble two,trouble three的说法,我觉得那是基于家长作风的一种对
孩子彻头彻尾的歧视。事实上,这里所谓的trouble应该是家长没有因为孩子的发展规
律适时地调整教养方式,而给孩子
i**e
发帖数: 19242
17
昨晚,去听了一个讲座,给大家分享一下
http://www.gettingtocalm.com/
看blog,上面有case studies,这个比较针对如何self-control
对于家长不喜欢的行为,貌似最有效的办法是鼓励/支持/培养我们希望看到的行为,同
时让孩子承担负面行为的后果(越自然的后果越好)
比如,当孩子有负面情绪的时候,我们希望孩子能calm down,aware of their
emotions,constructively express their feelings,find a solution
lz的case,偶觉着孩子已经形成了在家里一有不满,就以大发脾气大搞破坏的形式来发
泄。改这个习惯之前,咱得帮着孩子想几个alternative 平静以及发泄的方式,且
positively reinforce 这些行为
比如,一旦孩子发脾气,可以要求孩子深呼吸,4(in)-7(hold)-8(out),可以让孩子自
己数或者刚开始大人替着数;让孩子把不满情绪说(喊)/写出来,而不是以破坏东西
的方式发泄出来;可以教孩子说
I'm so disappointed ... 阅读全帖
D**********R
发帖数: 25234
18
谢谢详细的建议,相信对很多家长都有帮助。
我上的培训课也有相似的内容,我家每两周一次有专门的老师来给我做培训,这个问题
也是好久的话题了。
我会在饭前给他提醒,吃饭要怎样,都是很简单的rules,还会强调吃完饭有好吃的酸
奶,也会做出饭菜狠香的样子(我给他准备的饭菜确实挺好吃啊,汗~~~),还会让
他挑盘子和碗的颜色。
平时给他编故事,他也知道吃饭要怎样,也知道批判故事的人物,知道学习哪些。
在学校午饭的事儿,早晨送去就叮嘱,接回来没吃,饿肚子到晚上,哭,趁机教育,拖
到4点给吃,第二天送时再提醒,教育,帮他回忆,这都是大概两周前做的,不是每天
做全部,至少也是每天下午饿的时候给他教育。
晚饭气氛就像我说的,还是挺好的,他自己是enjoy的样子,但是吃了几口就开始玩了
,敲碗唱讨饭歌什么的,循循诱导没有用,坚持了绝对不止一两周了。
以前他老师是晚饭时间在这里,给他stamp什么的,这个是他们的方法,是根据给ASD(
autistic spectrum disorder)孩子的一些干预理论来的,做什么事情都有reinforcer
,对很多行为确实有效,而且形成习惯,就不需要再用了。
我个... 阅读全帖
G********r
发帖数: 3161
19
来自主题: Parenting版 - 特殊教育的一些事实和分析
izze,你说的很对,其实很多特教里的理念教具,都适用于普通正常的孩子,很多方法
能让你的孩子更加听话,其实我相信版上很多父母都在不知不觉中运用这些方法,只是
他们不知道罢了。
我给你一个简单的例子,其实正常孩子也有很多Behavior问题,比如说带孩子周末去
Shopping,然后孩子非要买玩具,你说不买,这下不得了了,大哭大闹,Screaming,
满地撒泼打滚,引来很多人的注目。作父母的,这个时候一定非常非常尴尬,大概都是
恨不得找个地缝钻进去算了。这时家长有两个作法:
1、跟孩子说“好了,好了,我给你买”,然后孩子破啼为笑,家长适然,完成
Shopping,赶紧回家。
2、坚决跟孩子说No,Behavior问题一出现,你可以让他在商场里打滚哭闹,你就站在
一边看着不做任何反应,或是立即Remove孩子从现场,放到车里让他大哭大叫,你在旁
边看着,直到他自己Calm Down为止,然后告诉孩子还是不能买玩具,如果听话接着
Shopping,如果不行接着在车里嚎。
这个案例里涉及ABA的两个概念,一个是Reinforce,一个是Ignore。
家长的第一个做法叫Negative r... 阅读全帖
s******4
发帖数: 1541
20
Behavioral Plan
Set limit
Role play - mirroring
Contracting
Positive reinforcement
Negative reinforcement
Parenting Support Group
m**s
发帖数: 97
21
来自主题: Parenting版 - 我们家的事,大家评评理
Jason is our dear son. He is 4 years old. We try to avoid quarreling in
front of kids. Below is an email I send to my wife:
I am OK with him drinking both cold and warm water. They are both perfectly
fine.
But "telling and reinforcing him that drinking cold water causes tummy ache"
is not right. Now he says tummy ache nearly everyday and we just ignore him
. This can be troublesome later like the "Wolf is coming" story.
Jason never complained tummy ache from 2011 to 2013 when he drank cold water... 阅读全帖
i**e
发帖数: 19242
22
来自主题: Parenting版 - 你们会为5岁孩子喂饭吗
positive reinforcement
就是看到孩子有了你所希望的言行时,赏,重赏,重重赏
这样比较正面积极地去motivate你的孩子,慢慢地让这些言行成为好的习惯
比如今天早上孩子没有闹,如果只是开口要姥姥喂
你就得抓住机会,赏重赏啊 show&tell
兴高采烈地边拥抱孩子边夸呗,告诉他你appreciate他这样的合作的态度和合理的言行
让他明白,什么样的言行更有可能得到你的关注,得到快乐嘛
喂饭这事,你可以先培养他用语言表达他的“想要”,可以继续喂着,然后偶尔地说妈
妈今天累了,今天你能不能自己吃?或者让孩子自己先吃,后面你再给他喂一些?要有
信心,这个事情是可以和平演变的:)
是你问的孩子在学校犯错,你们回家罚也罚了,效果不好么?
同样的,用positive reinforcement
告诉孩子,他是个小伙子了,妈妈相信他在学校在很努力地做最好的他。如果在学校犯
错,老师处理了就过了,他回来想说就说,不想说就不用说。当然老师找上门,爸妈还
是要配合老师处理的。
然后晚饭的时候,鼓励孩子说他在学校里做的让他开心和自豪的事,自己没有做但是看
到别人做的让老师赞扬的事也可以... 阅读全帖
c****n
发帖数: 15245
23
来自主题: PennySaver版 - 死呆婆便宜的28寸行李箱-55刀
不是万象轮的,不喜勿买
不能扩展其他看着还行
Travel in style with this elegantly designed suitcase from Swiss Legend!
The 28" expandable wheeled upright is perfectly sized to fit all your
belongings. It boasts ABS frame construction and a high quality 1,682 denier
polyester shell with DuPont Teflon coating and reinforced EVA front panels
to ensure your belongings survive the trip. For added convenience, it's
fully lined and has a telescoping handle and quiet, smooth gliding wheels.
Color Red/Black
1x front; 1... 阅读全帖
w*******o
发帖数: 6125
24
No QE3 Right - So Why Did The USD Just Hit A New Cyclical Low? Citi Explains
Why
Submitted by Tyler Durden
If you are confused why at one point every word the Chairman said was the
equivalent of one pip lower for the DXY and 10 cents higher for gold, wonder
no more. Here is Citi's Steven Englander asking, and explaining why the USD
just hit a new cyclical low.
From Citi's Steven Englander
Asset markets pretty much liked the FOMC statement and really liked the
press conference, but that's not the... 阅读全帖
l*****7
发帖数: 2844
25
看看这个
2013 Outlook: Lex Parsimoniae
There are known knowns; there are things that we know
There are known unknowns; that is to say there are things that we now know
we don't know"
But there are also unknown unknowns - there are things we do not know we don
't know"
-Donald Rumsfeld, U.S. Secretary of Defense, 2002
The economic and market environment remains as uncertain as ever as we move
into 2013. One does not have to look far to find extreme risks that could
propel us sharply in either directi... 阅读全帖
s****h
发帖数: 3979
26
你要考虑是上纯supervised还是reinforcement。
如果是纯supervised,哪些feature做输入,哪些做输出?
输入仅仅包括TA(股价,成交量,各种TA指标)?还是也考虑FA,行业整体评价,行业内
平均,各种financial数据?
股价若干时间后的变化是输出?
个人意见是仅仅靠日线,靠TA是做不出来啥东西的。如果有每一次交易的成交记录可能
会好很多。
至于是用deep learning还是传统的classification/regression倒是其次的。
估计你动手试一试才更有思路。
如果是reinforcement learning,你需要试不同的policy, value function。可以盲选
,可以基于supervised的结果选,可以基于网上高手们发的成功交易来选。
s****h
发帖数: 3979
27
DL在自动驾驶上有一个比较好玩的尝试:
在流行电脑游戏grand theft auto V上,用屏幕图像做输入,用输出控制汽车操作。
就是用reinforcement learning做
我觉得比mobileye用几个lidar,radar,camera的信号来识别路上的车辆行人树木石头啥
的有趣多了。
坐过基于mobileye系统的autonomous driving level 3的测试车,大失所望。
无非就是根据识别出的东西,和事先定好的rule来控制汽车。
mobileye那个lane merge的computer demo倒是用reinforcement learning做的。个人
觉得难度不大。
C*****5
发帖数: 8812
28
来自主题: Stock版 - NVDA 增长的一个新问题
快速的看了一下视屏,简单的说几句:
1)Evolution Strategy对deep reinforcement learning(RL)效果很好,可以在某些
benchmark problems上和back prop比肩(但是需要更多的数据)。
2)对于deep supervised learning来说,效果还远不如back prop,也许永远也比不上
back prop。具体原因是reinforcement learning的gradient非常noisy,用back prop
效果就很差。但是对于supervised learning来说,它的gradient比较平缓,现在的
back prop方法似乎已经很好了,Evolution Strategy似乎也不能提供没有更好的效能
(再具体的我才疏学浅,暂时说不清楚)。
3)现在这个阶段,nvda的GPU大部分都是在做deep supervised learning,比如图像,
语言等。RL的实际应用远远不如supervised learning。这个进展对NVDA亦喜亦忧。忧的
是可能以后做RL用不到这么多GPU了(but a... 阅读全帖
j***h
发帖数: 4412
29
New Zealand Building Code Gave All-Clear Before Quake
Wall Street Journal - Geoffrey Rogow * MARCH 1, 2011
CHRISTCHURCH—Experts are questioning why so many of the buildings damaged
in last year's earthquake in New Zealand were given the all-clear, an
alleged oversight that some say added to the calamity brought by last week's
quake in Christchurch.
"Everything had been weakened by that first quake, that's for sure," said
Steve Calanog, a federal "on scene" coordinator for the U.S. Environm... 阅读全帖
j***h
发帖数: 4412
30
Executive officer of the New Zealand Society of Earthquake Engineering, Win
Clark, said the problem started with the first clause of the New Zealand
Building Code, which worked on the basis that modern one-storey houses
needed to be built on good ground. But there was nothing about liquefaction
in the code, Clark said. He described those omissions as "oversights".
Christchurch earthquake: Homes failed by 'standards oversight'
New Zealand Herald By Lydia Jarman
5:30 AM Sunday Feb 27, 2011
The Sou... 阅读全帖
p*5
发帖数: 16204
31
But there are intersections where cops never reinforce the rule, such as
96th st and FDR ramp.
There are signs in every direction in that intersection and the box is
clearly marked...blocking is taking place pretty often. Cops on duty never
reinforce, which allows more severe blocking.
j*j
发帖数: 128
32
来自主题: SanFrancisco版 - Inspection 问题: cracking in foudation
正在买的一个SHORT SALE inspection后 发现了两个FOUNDATION裂缝问题。请问大家买房子时
发现过类似的问题吗?
1.
Horizontal cracking was noted to the foundation at the front and left side.
This usually is due to the reinforcing steel
being too close to outer edge to the foundation forms when the concrete is
first poured. Many times when the
foundation cures the crack appears in line with the reinforcing steel (rebar
). This can expose the rebar to excessive
moisture, which in turn leads to rust and corrosion. A thorough evaluation
of t
j***h
发帖数: 4412
33
New Zealand Building Code Gave All-Clear Before Quake
Wall Street Journal - Geoffrey Rogow * MARCH 1, 2011
CHRISTCHURCH—Experts are questioning why so many of the buildings damaged
in last year's earthquake in New Zealand were given the all-clear, an
alleged oversight that some say added to the calamity brought by last week's
quake in Christchurch.
"Everything had been weakened by that first quake, that's for sure," said
Steve Calanog, a federal "on scene" coordinator for the U.S. Environm... 阅读全帖
j***h
发帖数: 4412
34
Executive officer of the New Zealand Society of Earthquake Engineering, Win
Clark, said the problem started with the first clause of the New Zealand
Building Code, which worked on the basis that modern one-storey houses
needed to be built on good ground. But there was nothing about liquefaction
in the code, Clark said. He described those omissions as "oversights".
Christchurch earthquake: Homes failed by 'standards oversight'
New Zealand Herald By Lydia Jarman
5:30 AM Sunday Feb 27, 2011
The Sou... 阅读全帖
d**n
发帖数: 3172
35
来自主题: SanFrancisco版 - 老中又被wsj找人解剖了一把。Orz...
What the Chinese Want
http://online.wsj.com/article/SB1000142405270230336050457740849
.html?mod=WSJ_article_comments#articleTabs%3Darticle
By TOM DOCTOROFF
Apple has taken China by storm. A Starbucks can be found on practically
every major street corner in coastal cities and beyond. From Nike to
Buick
to Siemens, Chinese consumers actively prefer Western brands over their
domestic competitors. The rise of microbloggers, the popularity of rock
bands with names like Hutong Fist and Catcher in the ... 阅读全帖
s*******e
发帖数: 131
36
来自主题: SanFrancisco版 - 房子地基有横向裂纹的能买吗
横向裂纹出现的原因很多,你的inspection report里面通常会这样说
Horizontal cracking was noted to the foundation at the front. This usually
is due
to the reinforcing steel being too close to outer edge to the foundation
forms
when the concrete is first poured. Many times when the foundation cures the
crack appears in line with the reinforcing steel (rebar). This can expose
the steel
(rebar) to excessive moisture, which in turn leads to rust and corrosion. A
thorough evaluation of this condition is beyond our qualificati... 阅读全帖
i*****s
发帖数: 15215
37
来自主题: CanadaNews版 - Canada job market sputters, exports dip
..
OTTAWA (Reuters) - Canada unexpectedly failed to create any new jobs in
February, continuing a trend of stalled employment despite signs of a
healthy domestic economy and a comeback by the U.S. job market.
The net job losses in February totaled 2,800, dragged down by retail and
wholesale trade, transportation and other services, Statistics Canada said
on Friday.
The agency also reported a drop in exports in January, after two months of
gains, biting into the country's trade surplus.
The repor... 阅读全帖
w***7
发帖数: 5568
38
来自主题: Football版 - 野驴球员真变态。。。
原来把对手全当乌鸦打,每周看一次是不是会自虐到吐啊。。。
Negative reinforcement? Unbeaten Broncos watch 2012 playoff loss every week
http://kdvr.com/2013/10/04/negative-reinforcement-unbeaten-bron
o*****p
发帖数: 2977
39
http://it.sohu.com/20160128/n436102903.shtml
1997年,国际象棋AI第一次打败顶尖的人类;2006年,人类最后一次打败顶尖的国
际象棋AI。欧美传统里的顶级人类智力试金石,在电脑面前终于一败涂地,应了四十多
年前计算机科学家的预言。
至少还有东方,人们自我安慰道。围棋AI长期以来举步维艰,顶级AI甚至不能打败
稍强的业余选手。这似乎也合情合理:国际象棋中,平均每回合有35种可能,一盘棋可
以有80回合;相比之下,围棋每回合有250种可能,一盘棋可以长达150回合。这一巨大
的数目,足以令任何蛮力穷举者望而却步——而人类,我们相信,可以凭借某种难以复
制的算法跳过蛮力,一眼看到棋盘的本质。
但是,无论人怎么想,这样的局面当然不可能永远延续下去。就在今天,国际顶尖
期刊《自然》报道了谷歌研究者开发的新围棋AI。这款名为“阿尔法围棋”(AlphaGo
)的人工智能,在没有任何让子的情况下以5:0完胜欧洲冠军,职业围棋二段樊麾。
AlphaGo与欧洲围棋冠军樊麾的5局较量。图片来源:参考文献[1]
这是人类历史上,围棋AI第一次在公平比赛中战胜职业... 阅读全帖
n******r
发帖数: 4455
40
你夸大了污染程度和对生成model的影响
如果人类对局如你所说bias太大,狗为什么先用人类对局训练而不是跳过直接来?
事实上人类对局训练出来的model已经有不错的表现,用Reinforce Learning是为了进
一步提高
而不是你说的人类对局总结出来的规律不值一提,应该全部推到重来
还有Reinforce Learning的一个问题就是容易同质化,能提高的level有限,和初始
model相关性大,这正好是你说的近亲繁殖的问题
s*******y
发帖数: 18
41
G没有公布机器的spec不过搞CNN流行的配置是Nvidia Tesla K40/K80, 5-8TFLOPS。单
机版插8个GPU,单精度运算是deepblue的几十倍了吧。他们论文里写运算只是深蓝的几
千分之一,不知道他们是怎么评估的。如果运算量那么小,没必要用这么多运算资源。
这个比赛其实不是很公平,调动了这么大的计算资源来和一个人下。人遵守了围棋比赛
的规矩,机器却没有。(至少应该给李九段另外备个棋盘让他推演一下)。机器一直在
用MCST在推演。
我多说几句废话 -
CNN的特点是既能提取图形的局部特征(类似手筋的东西),又可以总结相对宏观的东
西(大局观)。加上reinforcement learning的训练,系统也总结了围棋的动态变化(
dynamics). Reinforcement learning 就像DP一样在某的状态下帮助系统学习这么找最
优解。这个系统/算法设计包括训练都挺NB的,是一个彰显工程能力成功案例。
y*j
发帖数: 3139
42
The training of CNN costs a lot of computation. Once done with the training,
the running time computation is not so high, so it is possible that alphago
needs much less computation than deep blue.


: G没有公布机器的spec不过搞CNN流行的配置是Nvidia Tesla K40/K80, 5-
8TFLOPS。单

: 机版插8个GPU,单精度运算是deepblue的几十倍了吧。他们论文里写运算只是深
蓝的几

: 千分之一,不知道他们是怎么评估的。如果运算量那么小,没必要用这么多运算
资源。

: 这个比赛其实不是很公平,调动了这么大的计算资源来和一个人下。人遵守了围
棋比赛

: 的规矩,机器却没有。(至少应该给李九段另外备个棋盘让他推演一下)。机器
一直在

: 用MCST在推演。

: 我多说几句废话 -

: CNN的特点是既能... 阅读全帖
h*********r
发帖数: 1943
43
来自主题: GunsAndGears版 - how much will you spend?
If carbon fiber reinforced structure is cheapier to made, in that world, all
cars and bikes on the road should use this material to build their main
chassis and exterior to reduce the cost and improve strength. Unfortunately,
in our REAL world, this is not the case, only a few super cars and race
bikes can do this.
http://www.ashburyintlgroup.com/Saber-FORSST.htm
Then go back to this piece of... whatever it is, the MSRP is less than 2300,
the main part are quite the same with Rem chassis, with t... 阅读全帖
b*****e
发帖数: 5133
44
来自主题: GunsAndGears版 - 手枪射击技术再请教
有教练是会很有帮助,可以看出小问题和建议尝试稍微不同的技术来看哪个更适合你,
最重要的就是从一开始就不让你有坏习惯。
有视频也可以有很多帮助,至少是对那些你认为你做到了但实际上没有做到的。
单手练枪如果从你以前建议的10码开始,会打击很多新手的。单手握枪和扣扳机配合的
过程更明显,不是1911或其它轻脆单动,扳机太重行程太长的话再加上单手本来就晃得
厉害,紧张新手抖得可以画圈,会越打越没有信心的。
学打枪或者学其它需要肢体和不同感官相互配合的活动我觉得还是一开始分离开单独练
比较容易上手,新手可以看到自己不断的进步,positive reinforcement从运动心理上
讲还是很重要的。比如开车新手上手动档可以彻底抓狂。简单的自动档先学会,除了油
门离合配合和换挡之外的所有操作包括观察路况等都熟练不用担心时再只关心油门离合
配合和换挡学手动就容易和不用非常紧张了。学习游泳如果不把平衡,呼吸和划水分开
练的话肯定也是更多的紧张和在水里挣扎。练琴也一样,其它例子也非常多。我主张的
是consistent improvements by deliberate practice和positi... 阅读全帖
r***6
发帖数: 401
45
来自主题: GunsAndGears版 - Home invasion tactics
Here is a good article I recently read. Good distinction between burglary va
invasion.
Home Invasion Robbery
Protect Your Family with a Security Plan
by Chris E McGoey, CPP, CSP, CAM
Home Invasion
One of the more frightening and potentially dangerous crimes that can occur
to a family is a home invasion robbery. A home invasion is when robbers
force their way into an occupied home, apartment or hotel room to commit a
robbery or other crimes. It is particularly frightening because it
violates our ... 阅读全帖
t*******r
发帖数: 22634
46
来自主题: Music版 - 【技术】头声,口型与共鸣
其实 FFT 是看别人的,自己感觉更可靠。reinforced falsetto
和 yelling 都会发生低音(最低端的几个音不算)比高音难发音
的问题,正常的 head voice 不会发生这种情况。道理很简单,
reinforced falsetto 是由 falsetto 演变过来的,低音如果也
保持那个 falsetto 的话,低音发音当然更不容易。
t*******e
发帖数: 1511
47
针对薛铊和李铊的白宫请愿书来了!!体力组的跟上!
http://wh.gov/SgmM
we petition the obama administration to:
Deport Xue Gang(薛刚) / Li Hanlin(李含琳) Who involved in a poison murder
case, Reinforce Background Checks In Pharma. Ind.
In 1995, Zhu Ling was poisoned by Thallium salt at Tsinghua University in
China. The case was closed abruptly due to the political influence of a
suspect's family. Some people involved are in US now:
Xue, Gang(薛刚), a cadre of the Chinese Communist Party, was involved in the
cover-up of this hein... 阅读全帖
n**e
发帖数: 2026
48
来自主题: WaterWorld版 - 证据!连环证据直指铊毒真凶
核心提要:尼罗河在《证据!远程诊断追查铊毒真凶》一文中证明贝志城展示给央视记
者的“专家电邮”是伪造的,构成他涉嫌朱令案的第一证据环节。这里,尼罗河根据
Robert A. Fink医生的文章揭示贝志城涉嫌朱令案的第二证据环节:所谓美国医生
Robert A. Fink和John W. Aldis在北京时间1995年4月12日之前提出了铊中毒诊断是撒
谎。这两个证据环节相互印证,直接指向一个重大疑点:贝志城从一开始就知道朱令是
铊中毒!
尼罗河《证据!远程诊断追查铊毒真凶》首次揭示了贝志城伪造专家电邮,构成贝志城
涉嫌朱令案的证据链上第一个环节。随后尼罗河查证的焦点集中在这样一个问题上,是
谁,在什么时间第一个作出铊中毒的诊断,或者非正式地第一个提到铊中毒的诊断。
贝志城在东方时空《朱令的十二年》电视访谈中说:“十号发了那是个周一,周三我就
给朱令他爸爸打电话,看到提问里还有说是铊中毒。”。 “周三我就给朱令他爸爸打
电话,”,也就是北京时间1995年4月12日,贝志城就明确发布了铊中毒诊断信息。那
么我们查证的目标就缩小到从北京时间4月10日到12日两天时间。
在The First ... 阅读全帖
t******n
发帖数: 2939
49
☆─────────────────────────────────────☆
nile (nile) 于  提到:
核心提要:尼罗河在《证据!远程诊断追查铊毒真凶》一文中证明贝志城展示给央视记
者的“专家电邮”是伪造的,构成他涉嫌朱令案的第一证据环节。这里,尼罗河根据
Robert A. Fink医生的文章揭示贝志城涉嫌朱令案的第二证据环节:所谓美国医生
Robert A. Fink和John W. Aldis在北京时间1995年4月12日之前提出了铊中毒诊断是撒
谎。这两个证据环节相互印证,直接指向一个重大疑点:贝志城从一开始就知道朱令是
铊中毒!
尼罗河《证据!远程诊断追查铊毒真凶》首次揭示了贝志城伪造专家电邮,构成贝志城
涉嫌朱令案的证据链上第一个环节。随后尼罗河查证的焦点集中在这样一个问题上,是
谁,在什么时间第一个作出铊中毒的诊断,或者非正式地第一个提到铊中毒的诊断。
贝志城在东方时空《朱令的十二年》电视访谈中说:“十号发了那是个周一,周三我就
给朱令他爸爸打电话,看到提问里还有说是铊中毒。”。 “周三我就给朱令他爸爸打
电话,”,也就是北京时间1995年4月1... 阅读全帖
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