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全部话题 - 话题: models
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h****n
发帖数: 3447
1
来自主题: Stock版 - 关于TSLA model 3的销售
嗯,
我不看好Model 3,其实TSLA从来都是一个预订生产企业,Model S就是到最后大家也搞
不清楚到底是产能不足还是需求不够。我们只能从Musk的行为来回头看这个需求。
Model S刚出来就号称需求旺盛,产能不足,但是不久Musk就决定开拓欧洲,亚洲市场
。自己出钱疯建充电桩也是后来发生的事儿。这些举措都是为了增加销量。另一个就是
几年前,还是在大家算model S每个季度增加了多少销量的时候,Musk就下定决心放弃
Model S了,开始Model 3了。(model 3出来,估计不会真的有人傻到出3倍价格买
Model S吧)。同时Musk提前非常长的时间就告诉大家并开放预定。一个新产品有必要
提前这么久就开始做宣传吗?Musk的行为是因为他知道model S需求量到底是多少,背
后有过去多年的预订数据。
Model 3的思路也是一样,也是预定销售。这个数据,Musk当然是知道的,过去一年多
,如果需求真的旺盛,早就成天twitter了。最初预订的应该还没有交付完,Musk手中
就应该有2,3年Model 3的预订量了。现在已经一年多了,这种大众车型,每年就20,
30... 阅读全帖

发帖数: 1
2
来自主题: Stock版 - 把model 3开回家的感觉。。。
事实,想科普一下:
虽然 model 3 车子小,比model S/X 便宜,但是电动车核心技术和很多设计比现在 的
modelS/X 领先一代:
1. 电池包2170的能量密度超过 model s 18650 30%。 另外, 成本大大降低,因为钴%
已经低于5%,未来5个月-一年要实现完全没有钴。 下一代model SX 很快采用新技术
, 马上要推出130 度电电池包。
2。逆变器全部采用sic 技术,虽成本较高(每个die 本身成本增加),但是因为效率
提高~1.2%,导热性能极大提高,耐高温,电池里程提高的电池成本节省可以抵消逆变
器成本增加。 实话实说,model S 本身逆变器技术就已经行业大幅领先,主要是自
己封装技术远远超过其他公司,包括英飞凌(特斯拉10几人团队干翻 英飞凌200 多人
团队)。 其他公司目前不能赶上model S的技术,更不用说model 3.
3. 电机技术, model 3采用 0.25 mm 矽钢片,电子油泵可以任何工况控制冷却油量
,定子冷却(100 多embedded channel)不可能更好;转子主动冷却能力超级强(几乎
不能... 阅读全帖
f******t
发帖数: 7283
3
来自主题: Automobile版 - 大家觉得Model X今年值得买吗?
一但出现“据说”这个字眼,一般就意味着没搞清楚事情的来龙去脉吧。
Tesla之前找一家独立的测试机构来测Model S的车顶硬度。不知为什么这么邪门,还是
故意“安排”的,测试的时候“恰好”用了一台低容量的测试仪,该仪器最多只能施加
大约Model S重量4倍(大约是18000 lbs左右)的压力。所以无论是Model S还是其它任
何车型,只要车顶硬度能承受超过18000 lbs的重量,该测试仪都会爆表。
Tesla官方新闻稿原文是这样说的:
“Of note, during validation of Model S roof crush protection at an
independent commercial facility, the testing machine failed at just above 4
g's. While the exact number is uncertain due to Model S breaking the testing
machine, what this means is that at least four addition... 阅读全帖

发帖数: 1
4
This is a temp-to-hire or long term contractor position from a top auto
financial services company. The job location Plano is in north Dallas area,
one of the best places to live in US. If you're interested, please email me
at
[email protected]
Key Responsibilities
• Support the model validation team to mitigate the model risks
• Discovers and diagnoses modeling related risks including input
data, assumption, concept, methodology, process and implementation
• Prov... 阅读全帖

发帖数: 1
5
This is a temp-to-hire or long term contractor position from a top auto
financial services company. The job location Plano is in north Dallas area,
one of the best places to live in US. If you're interested, please email me
at
[email protected]
Key Responsibilities
• Support the model validation team to mitigate the model risks
• Discovers and diagnoses modeling related risks including input
data, assumption, concept, methodology, process and implementation
• Prov... 阅读全帖
t*******8
发帖数: 67
6
Hi, all,
Happy New Year!
A financial institute is looking for a SAS statistics modeler, 5+ years with
Statistics Modeling and Advanced SAS Programming, mortgage related exp is
plus, but not required. Candidates can come from other industries, such as
insurance, credit cards or pharmaceuticals.
If you are interested, please send me your resume in word format to tgan at
optionsgroup dot com.
If you need compensation information, you can email me to ask.
Tom Gan
Recruiter
Position Description
The p... 阅读全帖

发帖数: 1
7
【 以下文字转载自 JobHunting 讨论区 】
发信人: HestonLSV (HestonLSV), 信区: JobHunting
标 题: 【工作机会】Model Risk Roles in IB (TKO and HK)
发信站: BBS 未名空间站 (Thu Jan 28 19:36:30 2016, 美东)
Hi All,
We are the model risk group in a top tier IB. Our team is responsible to
manage model risk and cover a wide range of quant models used in the firm
through its range of business, from derivatives pricing models to models
used for risk management and capital computations. In addition to
independently reviewing these classes of m... 阅读全帖
c******a
发帖数: 4400
8
这位BMWBLOG可是长时间的BMW粉丝。可以去查看他的channel里面有多少BMW视频,这个
不是假的来的。他的评价
摘要:
1. 在各个速度阶段, model 3肯定更加powerful,更给力,加速快的多(注意他开的
model 3最慢的版本)
2. 内饰方面model 3也不差,而且天窗有情调
3. model 3自动驾驶ok! bmw根本差几个档次
4. 操控都很好.bmw turn radius好
5. aerodynamic model 3好很多, wind drag小,大风时bmw受影响而model 3很稳
6. model 3的导航,行车显示(两边的车检测和屏幕显示)和follow距离控制让他大赞
7,model 3充电比i3快三倍(其实他不知道gen2 supercharge更快三倍)
8. model 3更efficient, range ridiculously high
9. model 3 stereo赞
10. Tesla support 好太多
最后总结(20分钟):
Model 3 is the future of EV, clear winner!... 阅读全帖
r**a
发帖数: 536
9
this is true. So normally we have to think the model from both model
developer's and risk manager's viewpoint. Basically, this means that we have
to build the model (math derivation and implementation) from the very
beginning. This is so-called independent check. Furthermore, I do not think
it is a good thing if FO quant tells all the details, because it will limit
your view. You know, different people have different idea. If you know other
guys' idea exactly, it is very easy to confine your ide... 阅读全帖
t*******8
发帖数: 67
10
Hi, all,
Happy New Year!
A financial institute is looking for a SAS statistics modeler, 5+
years with Statistics Modeling and Advanced SAS Programming, mortgage
related exp is plus, but not required. Candidates can come from other
industries, such as insurance, credit cards or pharmaceuticals.
If you are interested, please send me your resume in word format to tgan@
optionsgroup.com
if you need compensation and other information about this role, please email
me also.
Thanks,
Tom Gan
Position Des... 阅读全帖
y***n
发帖数: 2318
11
【 以下文字转载自 Joke 讨论区 】
发信人: yeson (快乐着并幸福着...), 信区: Joke
标 题: 35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
发信站: BBS 未名空间站 (Sun Jul 30 08:44:42 2017, 美东)
Musk真是人如其名,皮厚的程度在大忽悠群体中也是厚的无以复加。
35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
信源:华尔街见闻|编辑:2017-07-30
对于翘首期盼已久的特斯拉粉丝们来说,特斯拉首款平价电动汽车Model 3的交付仪式
可谓惊喜和失望并存。
最大的惊喜在于,作为入门款车型,Model 3在性能上并没有打折,但这款“平民”特
斯拉的定价则遭到诸多吐槽。吸引眼球的35000美元只能买到基础黑色款,如果你想换
个颜色,或加点配件,价格就蹭蹭地跳涨。更令人失望的是,昨日交付的30台都是高配
车型,特斯拉也表示初期将集中生产高配版,35000美元的基础版车型要在今年秋季才
能交付。
Model 3被寄予厚望,是马克斯完成其“远大规划”的最后一步,Model 3成功与否很大
程度上将决... 阅读全帖

发帖数: 1
12
Hi All,
We are the model risk group in a top tier IB. Our team is responsible to
manage model risk and cover a wide range of quant models used in the firm
through its range of business, from derivatives pricing models to models
used for risk management and capital computations. In addition to
independently reviewing these classes of models for their validity and
theoretical consistency, the group is also responsible to quantify the risk
associated with model choice, e.g., exposure to choice of m... 阅读全帖
y***n
发帖数: 2318
13
好像车版对这个话题有兴趣的多。大家有空可以去那发表真知识卓见:
http://www.mitbbs.com/article_t/Automobile/35676925.html
【 以下文字转载自 Joke 讨论区 】
发信人: yeson (快乐着并幸福着...), 信区: Joke
标 题: 35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
发信站: BBS 未名空间站 (Sun Jul 30 08:44:42 2017, 美东)
Musk真是人如其名,皮厚的程度在大忽悠群体中也是厚的无以复加。
35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
信源:华尔街见闻|编辑:2017-07-30
对于翘首期盼已久的特斯拉粉丝们来说,特斯拉首款平价电动汽车Model 3的交付仪式
可谓惊喜和失望并存。
最大的惊喜在于,作为入门款车型,Model 3在性能上并没有打折,但这款“平民”特
斯拉的定价则遭到诸多吐槽。吸引眼球的35000美元只能买到基础黑色款,如果你想换
个颜色,或加点配件,价格就蹭蹭地跳涨。更令人失望的是,昨日交付的30台都是高配
车型,特斯拉也表... 阅读全帖
t********a
发帖数: 423
14
来自主题: Texas版 - 招 Senior modeling analyst (转载)
【 以下文字转载自 JobHunting 讨论区 】
发信人: tomorrowba (明天吧), 信区: JobHunting
标 题: 招 Senior modeling analyst
发信站: BBS 未名空间站 (Fri Feb 24 16:14:54 2017, 美东)
借朋友的ID发帖。
San Antonio USAA. top 10 best employer in USA 2016. Excellent overall
benefits.
Enterprise modeling group hires Senior modeler need 4-6 year modeling
experience.
Type of models include, marketing models, Acquisition models. Member life
time value models, attrition models, financial models, Time series models.
***** Machine learning preferred.
I... 阅读全帖
c**i
发帖数: 6973
15
来自主题: Fashion版 - The Art of Scouting Models
Rachel Dode, A Different Kind of Girl Scout. Wall Street Journal, Feb 10,
2011.
http://online.wsj.com/article/SB1000142405
2748704422204576130110702991234.html
Quote:
The 49-year-old "Ms. [Mary] Clarke scouted her own husband in 1997, when
Jeff Clarke was employed at a Structure men's clothing store. (Mr. Clarke,
now 37, worked as a model briefly before marrying Ms. Clarke and becoming
her business partner.)
"The typical runway model is about 5'10" with 34" hips.
"The Clarkes don't charge for th... 阅读全帖
t********a
发帖数: 423
16
来自主题: Quant版 - 招 Senior modeling analyst (转载)
【 以下文字转载自 JobHunting 讨论区 】
发信人: tomorrowba (明天吧), 信区: JobHunting
标 题: 招 Senior modeling analyst
发信站: BBS 未名空间站 (Fri Feb 24 16:14:54 2017, 美东)
借朋友的ID发帖。
San Antonio USAA. top 10 best employer in USA 2016. Excellent overall
benefits.
Enterprise modeling group hires Senior modeler need 4-6 year modeling
experience.
Type of models include, marketing models, Acquisition models. Member life
time value models, attrition models, financial models, Time series models.
***** Machine learning preferred.
I... 阅读全帖
f***a
发帖数: 329
17
我觉得有两个概念很容易弄混,一个是model的goodness of fit,一个是model
selection。
前面一个是判断某一个model和data是不是fit很好,后一个判断一些candidate models
中哪一个和data最吻合。用model selection方法的时候,当你从candidate models找
出最吻合的那个model时,不能直接就判断那个model的goodness of fit就是很好的。
有可能所有candidate models都差,矮子中拔高个的结果而已。
有很多常用的方法,不过最好具体model、具体数据类型具体分析,找到最合适的方法
。譬如AIC就有很多变种,对应不同类型的数据结构。我列举一些希望对楼主有用。
General model selection methods:
1) common tests: wald Z, chi-square, t, F etc
2) likelihood ratio test and its variants
3) information criteria methods: AIC,BIC, a
i****x
发帖数: 17565
18
来自主题: _Auto_Fans版 - Tesla Model S试驾体验
model s大名鼎鼎,虽然帖子视频看了不少,但从未亲身体验过。今天约了本地Tesla店
试驾,认真看了一大圈,来分享一下。
tesla店面不大,但是内装风格很统一,来人源源不断,周六全天约满。s外形大家都知
道了,算比较漂亮比较有气场,但是也比较低调。我仔细挑做工的毛病,后视镜上下接
缝略大,trunk打开时可以看到一些金属焊合面的不平整,车内阅读灯本身就是个按钮
,但是按起来比较cheap,感觉弹力都不正,也不是咬合很紧,滑动很润的那种高档手
感。这些都略属于吹毛求疵了,不过对于80k的车看这些细节也不能算太过分。
前座非常舒服,座椅不是很深不过腰部侧面有些支持,以前我以为加了sports seat座
椅会变深,今天才知道只是加了一条红色皮缝而已,形状完全不变。后座也挺舒服,一
大优点是后中座跟旁边两座相比,leg head room和背部都完全一样,这是拜电车
packaging优势。但是后座靠背和车顶都低,如果头往后仰就会蹭到车顶,我还只是中
等身高。实际上如果后座头枕可以拉高,向后仰就不容易碰到车顶了,不知道为什么没
有做这个设计,比较可惜。
车子内饰漂亮还是挺漂亮的,是极简... 阅读全帖
d*******a
发帖数: 454
19
http://www.nytimes.com/2010/11/05/world/asia/05iht-letter.html?ref=china
A Model of Development Worth Building
By AKASH KAPUR
PONDICHERRY, INDIA President Barack Obama arrives in India this weekend,
accompanied by a retinue that occupies two jumbo jets.
His visit coincides with Diwali, the Indian festival of lights, and his
meetings will no doubt have a bright, upbeat tone. But his trip is unlikely
to ease a nagging sense in India that ties between the two countries have
suffered something of a ... 阅读全帖
g**1
发帖数: 10330
20
抱歉Model 3,我有仪表盘 吉利发布GE11内饰官图
2019-02-24 09:19:35 来源: 网易汽车 举报
5137
易信
微信
QQ空间
微博
更多
吉利GE11是首款基于全球市场打造的纯电动车型,竞争对手包括特斯拉Model 3等车型
。工信部综合工况续航为410km。
版权声明:本文版权为网易汽车所有,转载请注明出处。
网易汽车2月24日报道 近日,吉利汽车首次公布了吉利GE11的内饰高清图片。从官图看
,吉利GE11内饰设计融合科技与简约之美,其E-touch中央超感触控区等处大量采用触
控式设计;同时,GE11在的座椅采用欧盟认证的Skin-care婴儿级环保织物,材质上达
到婴儿用品级别。
抱歉Model 3,我有仪表盘 吉利发布GE11内饰官图
↑GE11外观官图,↓最新内饰官图
抱歉Model 3,我有仪表盘 吉利发布GE11内饰官图
【新车知识点】
1.内饰简约又有科技感
2.座椅材质达到欧盟认证的婴儿级标准
3.配备数字仪表盘和12.3英寸中控液晶屏
4.中控区采用E-touch触控式按键
5.配1.6米长氛围灯带,可切换7种颜色、10级亮度
【GE1... 阅读全帖
y***n
发帖数: 2318
21
Musk真是人如其名,皮厚的程度在大忽悠群体中也是厚的无以复加。
回文前建议通读过去的一个有技术含量更有干货的热烈讨论:
http://www.mitbbs.com/article/Automobile/35308505_0.html
http://www.mitbbs.com/article_t/Automobile/35678985.html
另外最好声明一下自己有没有做多或做空Tesla的股票(我自己none for both)。
35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
信源:华尔街见闻|编辑:2017-07-30
对于翘首期盼已久的特斯拉粉丝们来说,特斯拉首款平价电动汽车Model 3的交付仪式
可谓惊喜和失望并存。
最大的惊喜在于,作为入门款车型,Model 3在性能上并没有打折,但这款“平民”特
斯拉的定价则遭到诸多吐槽。吸引眼球的35000美元只能买到基础黑色款,如果你想换
个颜色,或加点配件,价格就蹭蹭地跳涨。更令人失望的是,昨日交付的30台都是高配
车型,特斯拉也表示初期将集中生产高配版,35000美元的基础版车型要在今年秋季才
能交付。
Mo... 阅读全帖
C*****z
发帖数: 2050
22
来自主题: Automobile版 - 大家觉得Model X今年值得买吗?
NHTSA只有五星,没有超五星,超五星是Tesla自己说的(好像说的是5.4星,这个比较
搞笑)。很多厂家全新设计过的车都可以第一次测试拿到五星,因为NHTSA的评价标准
在今天来看已经比较落后了。
IIHS的测试标准要严苛许多,行业中也是广泛认可的。如果拿不到优秀的成绩就质疑动
机是不太可取的一种态度。话说Euro NCAP也算是个政府组织,Tesla Model S在他们的
测试中就没有拿到最高分。原因之一是Euro NCAP比NHTSA的标准更高;原因之二是
NHTSA有翻车可能性评估,而对于底盘都是电池重心特别低的Model S来说,这是个先天
优势。如果你查过NHTSA对Model S的具体评分,就会发现Model S除了翻车这一项领先
于Model X,其他几项都逊于Model X,但总评仍是Model S优于Model X。事实上,
Model S靠翻车这一项给自己拉回来不少分,因为目前没有哪辆车能得到它那个分,先
天优势实在太强。
至于CR的评分看看就好了,现在Model S只有八十多了,reliability拉分太多。
t********a
发帖数: 423
23
来自主题: JobHunting版 - 招 Senior modeling analyst
借朋友的ID发帖。
San Antonio USAA. top 10 best employer in USA 2016. Excellent overall
benefits.
Enterprise modeling group hires Senior modeler need 4-6 year modeling
experience.
Type of models include, marketing models, Acquisition models. Member life
time value models, attrition models, financial models, Time series models.
***** Machine learning preferred.
If interested. SPONSORSHIP is required. Company does not sponsor H1B
Please forward your resume to hiring manager's email [email protected]... 阅读全帖
D***t
发帖数: 64
24
Position description
The successful candidate is expected to lead the development and application
of mathematical models which are required to describe the performance of
equipment and processes in the materials processing industries (chemicals,
petrochemicals, coal, etc.). A majority of the work involves the development
and application of process model libraries and systems modeling frameworks
to support process development and optimization.
Job responsibilities
Projects typically involve model... 阅读全帖
p**********u
发帖数: 15479
25
【 以下文字转载自 Automobile 讨论区 】
发信人: thisiszyy (thisishandsome), 信区: Automobile
标 题: 特斯拉欲破商标困局 正研发中国版ModelS
发信站: BBS 未名空间站 (Tue Aug 27 23:39:34 2013, 美东)
综合外电报道,美国电动车制造商特斯拉尽管在商标和产品注册上受挫,未能立即
实现入华,但该公司仍坚持挺进中国市场,并将推出面向中国消费者的Model S电动车。
欲破解商标难题
特斯拉公司日前表示,将很快克服商标在华被抢注的困难,坚持入华目标。早先特
斯拉曾计划今年初在华发布产品,并着手在北京兴建了一家旗舰展厅经销店。不过该计
划遭到延迟。搁置的重要原因在于特斯拉在华商标被抢注,并且Model S的产品注册也
未能完成。
8月份,广州商人占宝生发布了其6年前申请注册的特斯拉品牌官网,显示对“特斯
拉”中文商标和网站域名的所有权。特斯拉公司与占宝生经过长达10个月的接洽,未能
就收购商标达成一致。占宝生要价高达3,000万美元,远超过特斯拉方面200万美元的开
价。因而特斯拉入华大计受到拖累,只... 阅读全帖
c******y
发帖数: 3269
26
来自主题: PhotoGear版 - 请教关于镜头灰货US model的判断
我的理解是这样的:
行货:US model sold by Canon USA authorized dealer
灰货:any model sold by Canon non-authorized dealer
针对镜头来说,灰货里面也可以分US model和imported model,两者可能的区别是:
1. 带US保修卡--》US model
2. 不带US保修卡--》imported model或者US model
现在主要的问题是,怎么判断“2. 不带US保修卡”的情况下镜头是否是US model?
我之前对镜头灰货的理解是:
如果说明是US model,那一定是带US保修卡的
如果不带US保修卡,即“2. 不带US保修卡”,只能认为是imported model
不知道板上众位是怎么理解的呢?还请大家赐教
y***n
发帖数: 2318
27
Musk真是人如其名,皮厚的程度在大忽悠群体中也是厚的无以复加。
35,000美元只是个幌子 特斯拉的Model 3“定价艺术”
信源:华尔街见闻|编辑:2017-07-30
对于翘首期盼已久的特斯拉粉丝们来说,特斯拉首款平价电动汽车Model 3的交付仪式
可谓惊喜和失望并存。
最大的惊喜在于,作为入门款车型,Model 3在性能上并没有打折,但这款“平民”特
斯拉的定价则遭到诸多吐槽。吸引眼球的35000美元只能买到基础黑色款,如果你想换
个颜色,或加点配件,价格就蹭蹭地跳涨。更令人失望的是,昨日交付的30台都是高配
车型,特斯拉也表示初期将集中生产高配版,35000美元的基础版车型要在今年秋季才
能交付。
Model 3被寄予厚望,是马克斯完成其“远大规划”的最后一步,Model 3成功与否很大
程度上将决定特斯拉,甚至电动车市场的未来发展,如果Model 3能成功打入主流市场
,或将开启电动车平民化时代。
但在走向大众和实现盈利之间的如何实现平衡对特斯拉来说是一个巨大考验。特斯拉的
Model X和Model S的利润率高达25%,但它们盈利依然吃力,而业内估计Model 3的... 阅读全帖
D***t
发帖数: 64
28
Position description
The successful candidate is expected to lead the development and application
of mathematical models which are required to describe the performance of
equipment and processes in the materials processing industries (chemicals,
petrochemicals, coal, etc.). A majority of the work involves the development
and application of process model libraries and systems modeling frameworks
to support process development and optimization.
 
 
Job responsibilities
Projects typically... 阅读全帖
r**a
发帖数: 536
29
这就是我所说的一个好的model validator首先需要对模型有deep understanding,这
样才能make good suggestions。这个deep understanding包括为啥用这个模型而不用
别的,为啥用这种numerical method而不用别的,model的pro and con, etc.
我个人很同意在wilmott forum里面看到一个说法:一个好的model developer需要同时
是一个好的model validator。但是这是理想中的情况。现实是model developer迫于种
种压力,model validation的工作做得不够全面细致,这样MV就成为FO的一个有益补充
。反过来,一个好的model validator也需要同时是一个好的model developer,要学会
从model developer and risk manager的角度去想问题。至于将来是不是像前面同学说
的那样,MV是不是能取代FO,个人不好妄加断言。但是一个好的MV team绝对是FO
quant team的有益补充。毕竟人多力量大,前... 阅读全帖
j****n
发帖数: 10
30
来自主题: Statistics版 - 有人做marketing mix model的吗?
To my understanding, any model could be called marketing mix model if it
could handle the following 3 scenarios:
scenario1: Diminished return
scenario2: Delay impact
scenario3: Synergy
Using sales and spending as an example:
Diminished return handle: Applying log transformation on spending to
naturally capture the diminished return. If we apply the log transformation
on sales at the same time, then the coefficient for spending is the
elasticity.
Delay impact handle: One practical way to handle t... 阅读全帖
y**3
发帖数: 267
31
For time-to-event survival model,we may do time -sliced classification
models to predict event(yes or no). For the whole data set, the claims9 in
my data) are censored at different times. I can build different models using
data censored at 1 year, 2 year, 3 years, 4 years etc. For example, for the
2 year model, I use all the claims IDs of age >=2 years and censor them at
2 years. Then use the two years data to find the target and predictors. I
think that is statistically how we do it. Then this... 阅读全帖
f******t
发帖数: 7283
32
来自主题: _Auto_Fans版 - 去体验了一把Model S
试开完了model s。试的是P85版本,400多马力的那个,配空气悬挂。下面简略说说感
受:
1. 车体抗扭刚度或者抗弯刚度一般般,车轮压过路上拱起的反光块,引起的震动之后
,在车身上有明显的中低频余震,车身整体感达不到同价位豪华车的标准,甚至连起亚
K900都不如。另外路上有小坑颠簸的时候,车尾翻盖门那里有金属碰撞的异响,我觉得
是latch勾之间在碰撞,这也说明车身两边受力不均匀的时候车尾部分有形变。当然这
是按照我日常开的车子或者之前租来开过的车子的标准来比较;
2. 悬挂对路面不平整的吸收程度跟GS或者E350类似,比135i要好,软硬程度处于两者
之间;我在local上开还是能感受到车身不少震动。这个icefox的体验不同,但这可能
是因为我们拿来参考对比的车子不同,我只开过一次ES350所以对这个没发言权。总体
来讲model s的悬挂给我感觉比较中规中矩,没有太多惊艳的地方;
3. 加速的确像坐飞机起飞那样,均匀线性加速,尤其是电动机大电流运作时的嗡嗡声
有点像飞机喷气发动机的声音。我没有踩尽电门来试,但是试过也踩到很深的程度来体
验(tesla店附近就是警察局,不想拿... 阅读全帖
w*****h
发帖数: 423
33
Manhattan District Attorney Cyrus Vance Jr., has accused a former hedge fund
analyst of stealing documents that detailed the methods and application of
two trading models from a major New York hedge fund firm that specializes in
quantitative trading.
Kang Gao, a 28-year-old who until recently worked as a quantitative analyst
at Two Sigma Investments, was arrested last week and charged by the
Manhattan District Attorney of felony offenses, including computer trespass,
criminal possession of compu... 阅读全帖
t*******y
发帖数: 2570
34
综合外电报道,美国电动车制造商特斯拉尽管在商标和产品注册上受挫,未能立即
实现入华,但该公司仍坚持挺进中国市场,并将推出面向中国消费者的Model S电动车。
欲破解商标难题
特斯拉公司日前表示,将很快克服商标在华被抢注的困难,坚持入华目标。早先特
斯拉曾计划今年初在华发布产品,并着手在北京兴建了一家旗舰展厅经销店。不过该计
划遭到延迟。搁置的重要原因在于特斯拉在华商标被抢注,并且Model S的产品注册也
未能完成。
8月份,广州商人占宝生发布了其6年前申请注册的特斯拉品牌官网,显示对“特斯
拉”中文商标和网站域名的所有权。特斯拉公司与占宝生经过长达10个月的接洽,未能
就收购商标达成一致。占宝生要价高达3,000万美元,远超过特斯拉方面200万美元的开
价。因而特斯拉入华大计受到拖累,只能转而注册拓速乐汽车销售(北京)有限公司的名
称。
虽然从“特斯拉”到“拓速乐”的转变被视为该公司在华受挫,但特斯拉仍在推进
其计划,准备今年下半年向中国和其它亚洲市场出口汽车。到2013年年底,占地800平
方米的北京经销店将开张,并成为特斯拉在全球最大的一家经销店。
同时,特斯拉中国区总经理郑顺... 阅读全帖
m****s
发帖数: 18160
35
【 以下文字转载自 Quant 讨论区 】
发信人: HestonLSV (HestonLSV), 信区: Quant
标 题: 【 Repost-Job Opportunities 】Model Validation Roles in TK
发信站: BBS 未名空间站 (Wed Jan 27 01:20:28 2016, 美东)
Hi All,
We are the model risk team in a top tier IB. Our team is responsible to
manage model risk and cover a wide range of quant models used in the firm
through its range of business, from derivatives pricing models to models
used for risk management and capital computations.
We are now hiring associates both in Tokyo and Hong K... 阅读全帖
w*********y
发帖数: 7895
36
【 以下文字转载自 Statistics 讨论区 】
发信人: westjourney (胖得走不动), 信区: Statistics
标 题: 想问下Item Response Model的问题
发信站: BBS 未名空间站 (Wed Apr 1 21:18:51 2015, 美东)
我对3PL model的guessing value感的很困惑。是这样的,我用3PL里面得出的guessing
values 来检验不同的mixed 2PL and 3PL model. 比如说,for model 1,items with
guessing values greater than 0.3 was treated as 3PL model. For model 2,
items with guessing values greater than 0.2 was treated as 3PL model. For
model 1, items with guessing values greater than 0.1 was treated as 3PL
model. 我不知道这样做的... 阅读全帖
n******t
发帖数: 189
37
来自主题: Statistics版 - a regression model test issue
I did not learn any regression course before,so I want your help. Thanks.
suppose a person wants to make a decision (accpet or reject) when an item
comes to him.
Current model is only a logistic regression model. We know person's decision
is based on a lot of variables such as A1, A2....(nearly 200 in total)
Then the final acceptance probability is the result of logistic regression
model.
Currently, we have real data of person's decision, we calculate the
acceptance probability according to this... 阅读全帖
y**3
发帖数: 267
38
来自主题: DataSciences版 - time sliced classification models
For time-to-event survival model,we may do time -sliced classification
models to predict event(yes or no). For the whole data set, the claims9 in
my data) are censored at different times. I can build different models using
data censored at 1 year, 2 year, 3 years, 4 years etc. For example, for the
2 year model, I use all the claims IDs of age >=2 years and censor them at
2 years. Then use the two years data to find the target and predictors. I
think that is statistically how we do it. Then this... 阅读全帖
f********r
发帖数: 3155
39
正解。Model S三年大概卖了60K(15.6K, 18.6K, 26.6K)。假如16年产能曾加到34.6K
保持两年,总量就是130K。Model X这两年能卖十几到几十K吧,这些Model S/X的车主
很多会订一两辆Model 3,自己用(以前的Model S缺乏auto pilot等硬件)或者给老婆
孩子们用,毕竟Musk说的车主的钱支持了Model 3的研发。。。我的一个朋友当年刚花
100K+提了P85,还不带自动驾驶,几个星期后出了P85D,直接降了10K+,这回一下子订
了两辆Model 3
所以200K的名额,现有Tesla车主就先用光了,加上剩下三个季度能生产的Model 3能有
10-20K就顶天了,照样被Tesla车主用掉。昨天去排队的就是给Tesla送无息贷款的,今
天订
的可以盼几年后Model 3升级降价,呵呵

Signature
可以订,低配一点的连价钱都不知道。虽然有些人前两天就去排队想抢个前排,但是估
计到时候选35k版本的还得靠后站。等signature/performance/+D之类的全过去了才轮
到,估计到时候tax credit一分钱... 阅读全帖
l*******g
发帖数: 27064
40
特斯拉宣布新车计划,将于2016年推出小型电动车Model 3
2014-07-16 10:07:44
今天, 特斯拉在其官方Tweeter上公布了新品计划—一款命名为Model 3小型电动车,
此款车型体积会比Model S小20%,每次充电行驶里数可达200英里。Auto Express认为
这款车是特斯拉针对竞品BMW 3 系列的回应,它预计于2016年正式发布,明年启动预定。
特斯拉工程副总裁Chris Porritt略早时候接受Autocar采访时称,Model 3不会基于
Model S采用的铝合金平台,而且该公司将凭借更经济的电池成本来降低整体成本。
特斯拉CEO Elon Musk在接受采访时称,采用Model 3这个名字跟福特公司的法律纠纷还
有一定渊源,本来是想用Model E这个名字的,但福特称将起诉特斯拉才换了Model 3这
个名字。
d*2
发帖数: 2053
41
【 以下文字转载自 Military 讨论区 】
发信人: db2 (postgres), 信区: Military
标 题: Tesla's Long-Awaited, Lower-Priced Model 3 To Arrive Friday
发信站: BBS 未名空间站 (Mon Jul 3 13:53:06 2017, 美东)
http://www.npr.org/sections/thetwo-way/2017/07/03/535333378/the-tesla-for-the-masses-to-arrive-friday
The first-ever mass-market Tesla should roll out of the factory this week.
CEO Elon Musk tweeted late Sunday that the company's Model 3 car "passed all
regulatory requirements for production two weeks ahead of schedule.
Expecti... 阅读全帖
m****s
发帖数: 18160
42
【 以下文字转载自 Mathematics 讨论区 】
发信人: capmark (capmark), 信区: Mathematics
标 题: 招聘Risk Modeler,奖金加期权,无限假期
关键字: 招聘
发信站: BBS 未名空间站 (Wed Aug 28 21:41:09 2013, 美东)
招聘Risk Modeler。工作地点曼哈顿。条件:理科,工科或经济学PhD,统计专业优先
。英文口语流利(必备重要条件,无脱稿演讲水平者不予考虑)。一年以上金融,建模
或数据分析工作经验优先。如
名校博士,可无工作经验。
公司为Pre-IPO fintech company。预计两三年内上市,支持H1B。本组为新成立部门,
发展空间巨大。符合上述条件的申请人,请直接邮寄简历至c***[email protected]
As part of the Portfolio Management team, you will:
Own the testing and validation of statistical models used for important
business decisi... 阅读全帖
m****s
发帖数: 18160
43
来自主题: JobMarket版 - 招聘Risk Modeler,统计专业博士
【 以下文字转载自 Statistics 讨论区 】
发信人: capmark (capmark), 信区: Statistics
标 题: 招聘Risk Modeler,统计专业博士
发信站: BBS 未名空间站 (Mon Aug 26 23:20:49 2013, 美东)
招聘Risk Modeler。工作地点曼哈顿。条件:理科,工科或经济学PhD,统计专业优先
。英文口语流利(
必备重要条件)。一年以上金融,建模或数据分析工作经验。
公司为Pre-IPO fintech company。预计两三年内上市,支持H1B。本组为新成立部门,
发展空间巨大。符合上述条件的申请人,请直接邮寄简历至c***[email protected]
As part of the Portfolio Management team, you will:
Own the testing and validation of statistical models used for important
business decisions and credit policies
Provide constructiv... 阅读全帖
m****s
发帖数: 18160
44
【 以下文字转载自 Mathematics 讨论区 】
发信人: capmark (capmark), 信区: Mathematics
标 题: 招聘Risk Modeler,奖金加期权,无限假期
关键字: 招聘
发信站: BBS 未名空间站 (Wed Aug 28 21:41:09 2013, 美东)
招聘Risk Modeler。工作地点曼哈顿。条件:理科,工科或经济学PhD,统计专业优先
。英文口语流利(必备重要条件,无脱稿演讲水平者不予考虑)。一年以上金融,建模
或数据分析工作经验优先。如
名校博士,可无工作经验。
公司为Pre-IPO fintech company。预计两三年内上市,支持H1B。本组为新成立部门,
发展空间巨大。符合上述条件的申请人,请直接邮寄简历至c***[email protected]
As part of the Portfolio Management team, you will:
Own the testing and validation of statistical models used for important
business decisi... 阅读全帖
a****o
发帖数: 6612
45
来自主题: Stock版 - model 3好贵
2018年第一季度,特斯拉共卖了21,815辆model S和model X。同时卖出了8,182辆model
3。如果model S 和 model X的均价是95,000美元的话,那么model 3的均价大概66,
000美元。这已经是奔驰GLE350的价位了--如果不选4matic,差不多是出门价加上利息
了。
model 3卖这么贵,Tesla还是卖一辆赔一辆,真不觉得Tesla在实现每周5000辆后怎么
实现盈利。
【更正一下,按上面方法估计的model 3均价大概60,000美元,不是66,000。】
z*****a
发帖数: 3809
46
【 以下文字转载自 Quant 讨论区 】
发信人: YonahYou (Yonah), 信区: Quant
标 题: Another Chinese Charged With Stealing Quant Models
发信站: BBS 未名空间站 (Wed Feb 19 16:49:29 2014, 美东)
Total comp $547,000 as a computer system analyst with 3 year working
experience? Two sigma is so generous
http://www.forbes.com/sites/nathanvardi/2014/02/19/analyst-char
Kang Gao, a 28-year-old who until recently worked as a quantitative analyst
at Two Sigma Investments, was arrested last week and charged by the
Manhattan District Attorney ... 阅读全帖
s**a
发帖数: 178
47
来自主题: Quant版 - [JOB]NYC: Model Control Quant
Company: Top Global Bank
Loc: NYC
Position: Model Control Quantitative Analyst
Description:
This is a position in Model Control. Model Control is responsible for
ensuring that all the models used for Firm positions or trades are properly
tested and documented. This requires the technical skills needed to automate
the model testing and the analytical tools necessary to understand the
models. As Model Control is responsible for monitoring models across all
business lines, this will often require w
l********8
发帖数: 83
48
Risk Analytics Statistical Modeler/Developer
Compensation in $150k-$200k range
Work as part of the Retail Risk Analytics team to develop and enhance
portfolio models for reserves, capital and stress testing, as well as to
enhance estimations of Basel II parameters for Retail credit risk across
International Investment Bank’s diverse retail portfolios. Perform
reliability analysis and quality control of modeling data. Build and
maintain the required software infrastructure for models and applicat... 阅读全帖
m*******e
发帖数: 44
49
Hi, I am trying to make a survival analysis on some right censored data
using parametric survival model (proc lifereg in SAS). It seems to me that
the only modeling adequacy tests only focus on the which distribution fits
the data better. Is it appropriate to do modeling validation test by fitting
modeling on partial of data (ex. 70% of data) and then using the model
parameter estimates to calculate the estimated survival time using the rest
30% of data to check the residuals? But it is said if ... 阅读全帖
t********m
发帖数: 939
50
来自主题: Statistics版 - 该用cox regression model还是gee model?
Obs ID MONTHS SEQ EVENT DAYS AGE BMI
1 1 0 1 0 0.001 40 27.39999962
2 1 12 2 0 411 41 26.5
3 1 24 3 0 778 42 26.29999924
4 1 36 4 0 1169 43 26.20000076
5 1 48 5 0 1504 44 26
6 1 60 6 0 1911 45 26.39999962
7 1 72 7 0 2225 46 26.10000038
8 1 84 8 0 2612 47 27.60000038
9 2 0 1 0 0.001 50 24.7... 阅读全帖
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