o*****c
发帖数: 241 | 1 not as specific as badcompany's 130 top and 80 low from propriety
predication function.
it is just fun to study the crazy crude market. check the chart about oil
backwardation ( backwardation means futures forward curve is above 1. i use
frontmonth crude price to divide average oil price of 2nd, 3rd and 4th month
to calculate forward curve).
Usually, you pay time premium for future oil delivery, like stock options,
but sometimes, short term supply disruption or shortage fear can cause
commodity |
|
I******y
发帖数: 815 | 2 Hi guys,
any predications for PD of 2006. EB2? Like by 10/2011? how far PD can
proceed?
Thanks for sharing.
Happy |
|
c**t
发帖数: 9197 | 3 Let's post our predication for after FOMC movement.
I think it will touch friday low, then bounce back again to close ES 1117
level. |
|
s**********8
发帖数: 25265 | 4 510K
Premarket Notification (510k)
Introduction
What is Substantial Equivalence
Who is Required to Submit a 510(k)
When a 510(k) is Required
When a 510(k) is not Required
Third Party Review Program
Introduction
Each person who wants to market in the U.S., a Class I, II, and III device
intended for human use, for which a Premarket Approval (PMA) is not required
, must submit a 510(k) to FDA unless the device is exempt from 510(k)
requirements of the Federal Food, Drug, and Cosmetic Act (the Act) ... 阅读全帖 |
|
s******e
发帖数: 493 | 5 well I believe it was understated in this use case. What concern the author
most were performance and memory footprint. By take advantage of the built-
in life cycle mechanism of the executor framework, coders can very much
delegate the predicator instance management to the executor framework. This
will guarantee both the performance (no thread needs to wait for next
available predicator instance) and memory footprint concerns (shrink and
recreates if needed. or fixed...) this provides the exact... 阅读全帖 |
|
S*****0
发帖数: 538 | 6 link上就这2点：
1。 Microsoft and Sybase redefined "sargable" to mean 'can be looked up via
the index.'"
2。Sargable predicates can be evaluated on the tuples of a single table.
Unsargable predicates, or join predicates, require one or more joins to be
performed before the predicate can be evaluated
我在另一本SQL Server 2008上也看到这个论点。就是NOT EXITS， EXITS这些是Non-
sargable。
我同意不用index,是不合理的。我没有做过Left Join和NOT EXISTS的execution plan
比较, 但在我的工作中，数据量大的时候, Left Join的优势很明显，所以现在我都用
join了。 |
|
s******e
发帖数: 493 | 7 Using queue, especially blocking queue, even on the surface looks more
elegant since you can avoid casting. But it actually will cost you more
trouble down the road if you want any nontrivial implementation.
By separating something really closed to each other, you need to handle
their life cycles separately for any elegant implementation. Issues you
might need to consider:
1. The queue should have the exactly same life cycle as the thread if the
predicator instances won't be used anywhere else. ... 阅读全帖 |
|
a*******a
发帖数: 1240 | 8 Before embarking on a metaphysical critique of the famed "theory of general
relativity" (GR) amidst the fanfare of the recent observation by LIGO of
gravitational wave, an explorative discussion of mathematics is both helpful
and necessary.
In any theoretical investigations, mathematics plays a pivotal role. The
natural question arising herein is then, what is mathematics? And what kind
of roles can we possibly expect of mathematics in any theoretical enquiries
(i.e., by deductions) or in a prac... 阅读全帖 |
|
k**********i
发帖数: 8706 | 9 这个是医疗仪器/医药领域的“等效产品”的概念，为的是帮助同性同质的产品加快上市的速度，相对于“新产品/新药”那种更为审慎的审查，时间大大缩短
21 CFR Section 807.100
FDA will determine that a device is substantially equivalent to a predicate
device using the following criteria:
(1) The device has the same intended use as the predicate device; and
(2) The device:
(i) Has the same technological characteristics as the predicate device; or
(ii)(A) Has different technological characteristics, such as a significant
change in the materials, design, energy source, or other |
|
F****n
发帖数: 3271 | 10 Relational DB is a special case of predicate logic. Predicate Logic is like
relational DB without the constraints of tabular structure or schema. So
this templatedb really sounds like a predicate logic based knowledge
representation system, which has been studied for 50 years. |
|
s******e
发帖数: 493 | 11 Executor framework allows you to specify your own thread factory for
creating the threads. If you have to associate one predicator class to each
thread, you can do it there. But since predicator class is expensive to
create, you'd better ask yourself if it is absolutely needed for each thread
having its own predicator instance.
After that, you can simply implement callable interface, pass the input to
the constructor of the implemented class and save the input as a class
variable for use later. ... 阅读全帖 |
|
a*******a
发帖数: 1240 | 12 Before embarking on a metaphysical critique of the famed "theory of general
relativity" (GR) amidst the fanfare of the recent observation by LIGO of
gravitational wave, an explorative discussion of mathematics is both helpful
and necessary.
In any theoretical investigations, mathematics plays a pivotal role. The
natural question arising herein is then, what is mathematics? And what kind
of roles can we possibly expect of mathematics in any theoretical enquiries
(i.e., by deductions) or in a prac... 阅读全帖 |
|
a*********a
发帖数: 3656 | 13 so you agree that in a civilized society, protection of life does not
predicate on paying a poll tax. then why protection of property should
predicate on paying a wealth tax.
If the society has advanced so much, productivity has improved so much, why
we suddenly must discuss a wealth tax in order to salvage us from the abyss
of anarchy? Which we have never needed over the past 200+ years, and is not
needed in any country in the advanced world?
It s not like the government does not have any tax
i... 阅读全帖 |
|
g********2
发帖数: 6571 | 14 August 9, 2016
Trump Is Dangerous?
By G. Murphy Donovan
All we know about Donald Trump’s policy is what he says, not what he has
done or will do. Trump has no policy track record. He has never held office.
Intimations of what he might do are often vague, too. Yet, beneath the
rhetorical bluster, a few broad, if not salutary, strokes are evident.
Domestically, he says that he would end the fiasco that is open borders,
especially the reckless importation of unvetted Mexicans and Muslims. He
also c... 阅读全帖 |
|
C*****z
发帖数: 2050 | 15 1. Consumers Report (CR)
http://www.consumerreports.org
提到reliability，大家最先想到的大概就是CR。CR以前用Harvey Balls评级，现在改
版变成“红绿灯”了，其实换汤不换药，还是从好到坏五个级别。CR的reliability数
据来自订阅用户，每年春天他们发放相当数量的调查问卷（比如他们说2016年收到超过
50万辆车的数据，包括2000到2017的车辆），询问车主近12个月的车况，问卷问题涵盖
了汽车的方方面面（2016年的调查包括17类问题，大到发动机小到音响系统，但每部分
权重不同），然后根据回收的信息按照他们自己的统计方法对车辆进行评级。在调查中
，通常一个车型有200到400个样本，但如果回收的问卷数量不够，CR会根据品牌过去表
现、相似车型情况来处理统计数据。另外，为了让调查结果更可靠，他们发放问卷时是
不会傻傻地只问汽车部分的，问卷除了包括汽车也可能包括什么洗衣机电冰箱等等。CR
的reliability评级基本分为两块，一块是旧车的reliability，另一块是新车的
predicted r... 阅读全帖 |
|
C*****z
发帖数: 2050 | 16 1. Consumers Report (CR)
http://www.consumerreports.org
提到reliability，大家最先想到的大概就是CR。CR以前用Harvey Balls评级，现在改
版变成“红绿灯”了，其实换汤不换药，还是从好到坏五个级别。CR的reliability数
据来自订阅用户，每年春天他们发放相当数量的调查问卷（比如他们说2016年收到超过
50万辆车的数据，包括2000到2017的车辆），询问车主近12个月的车况，问卷问题涵盖
了汽车的方方面面（2016年的调查包括17类问题，大到发动机小到音响系统，但每部分
权重不同），然后根据回收的信息按照他们自己的统计方法对车辆进行评级。在调查中
，通常一个车型有200到400个样本，但如果回收的问卷数量不够，CR会根据品牌过去表
现、相似车型情况来处理统计数据。另外，为了让调查结果更可靠，他们发放问卷时是
不会傻傻地只问汽车部分的，问卷除了包括汽车也可能包括什么洗衣机电冰箱等等。CR
的reliability评级基本分为两块，一块是旧车的reliability，另一块是新车的
predicted r... 阅读全帖 |
|
O******e
发帖数: 4845 | 17 太沉迷于排名，不好。真的意义不大。
省在 Predicate (Predicate) 的大作中提到: 】 |
|
B*********e
发帖数: 9 | 18 真屈辱，心情恢复平静中。
写出来大家面他家的时候也做好思想准备吧
L公司刚上市，现在狂招人中,不知道是不是大家都cash out了。
本来要面9个人，后来只见了3个。就被人家说“I do not think we should carry on, in respectful of your time and our time”
写写吧，攒rp。大家轻拍，知道自己业务知识不强，回家读书过后再来过。
第一场本来要见host manager，后来跑来两个engineer说调换一下顺序。没有寒暄，直接问，我们问你technical的问题。
第一个给你一个FilterIterator Class（predicate p, iterator i), 写
bool hasnext() 还有bool next()
搞了半天什么是predicate，还有那个iterator i到底是哪个list上头的。但是后来这个在对方提示下写的差不多了。
第二个说给你一个很长的string list，让你分行打印。然后告诉你一行只能写L（比如
25）个字符，而且首位和末尾不能是空格，空格只能在中间，两个词中间可以空两... 阅读全帖 |
|
D********g
发帖数: 650 | 19 面经回馈本版，只列出technical question.
P1:
A. Add next pointer to each node on a BTree to its next sibling on the same
level.
B. Boggle题，find all possible words from a 2D character array.
P2:
A. Given
interface Iterator {
T next();
boolean hasNext();
}
interface Predicate {
boolean accept(T t);
}
Implement a method that creates an "accept" iterator that returns items
accepted by the passedin pred variable.
Iterator conditionIterator(Iterator input, Predicate pred) {
}
B. Concurren... 阅读全帖 |
|
p*****2
发帖数: 21240 | 20
我写了一个。
Iterator it=null;
Predicate pr=null;
T next=null;
Iterator conditionIterator(Iterator input, Predicate pred)
{
it=input;
pr=pred;
hasNext();
}
T next()
{
T ret=next;
hasNext();
return ret;
}
T hasNext()
{
if(next==null)
{
while(it.hasNext())
{
next=it.hasNext();
if(pr.accept(next))
break;
else
next=null;
}
}
return next!=null;
} |
|
b********g
发帖数: 43 | 21 我的理解是每次都预读一个next, 然后就ok 了
Iterator it = null;
Predicate pr = null;
T next =null;
Iterator conditionIterator(Iterator input, Predicate pred)
{
it = input;
pr = pred;
next();
}
T next() {
T ret = next;
bool found = false;
while(it.hasNext()) {
T val = it.next();
if(pr.accept(val))｛
next = val;
found = true;
break;
｝
}
if(!found) next = NULL;
return ret;
}
bool hasnext() {
return !next;
} |
|
h*****g
发帖数: 312 | 22 A. Given
interface Iterator {
T next();
boolean hasNext();
}
interface Predicate {
boolean accept(T t);
}
Implement a method that creates an "accept" iterator that returns items
accepted by the passedin pred variable.
Iterator conditionIterator(Iterator input, Predicate pred) {
}
这题撒意思？需要设计模式的背景知识吗？ |
|
p*****2
发帖数: 21240 | 23 class NewIterator
{
Iterator input;
Predicate pred;
T next;
boolean valid;
public NewIterator(Iterator _input, Predicate _pred)
{
input=_input;
pred=_pred;
}
public boolean hasNext()
{
if(!valid)
{
while(input.hasNext())
{
T t=input.next();
if(pred.accept(t))
{
next=t;
valid=true;
b... 阅读全帖 |
|
l*********8
发帖数: 4642 | 24 class ConditionIterater : public Iterator
{
public:
ConditionIterater(Iterator input, Predicate pred)
: m_Input(input), m_Pred(pred), m_HasNext(false)
{
}
T Next()
{
T returnValue = m_Value;
finxNext();
return returnValue;
}
bools hasNext()
{
return m_HasNext;
}
private:
void findNext()
{
m_HasNext = false;
while(m_Input.hasNext())
{
m_Value = m_Input.Next();
if (m_Pred.accept(m_Value) {
... 阅读全帖 |
|
l*********8
发帖数: 4642 | 25 根据peking2的程序和建议改一下：）
class ConditionIterater : public Iterator
{
public:
ConditionIterater(Iterator input, Predicate pred)
: m_Input(input), m_Pred(pred), m_HasNext(false)
{
findNext();
}
T Next()
{
if (m_HasNext==false)
throw exception;
T returnValue = m_Value;
fintNext();
return returnValue;
}
inline bools hasNext()
{
return m_HasNext;
}
private:
void findNext()
{
m_HasNext = false;
while(m_Input.... 阅读全帖 |
|
t**r
发帖数: 3428 | 26 Method 1
items.removeIf(i -> predicate(i));
Method 2
for (Iterator it = items.iterator(); it.hasNext();) {
if (predicate(it.next())) {
it.remove();
}
}
假设是操作一个list. remove其中的m个元素。
问这2个方法时间复杂度是不是一样 |
|
x**s
发帖数: 1085 | 27 还有，
他身材高大的主语当然是“他”，这个句子其实是他is身材高大， “身材高大”应该
相当于英语语法里的predicate adjective，整个phrase用来形容 predicate "is"的。。
。。 |
|
|
n******6
发帖数: 1829 | 29 【 以下文字转载自 JobHunting 讨论区 】
发信人: BrightSmile (BrightSmile), 信区: JobHunting
标 题: 去某刚上市公司面试被赶出来了。
发信站: BBS 未名空间站 (Thu Aug 11 17:07:23 2011, 美东)
真屈辱，心情恢复平静中。
写出来大家面他家的时候也做好思想准备吧
L公司刚上市，现在狂招人中,不知道是不是大家都cash out了。
本来要面9个人，后来只见了3个。就被人家说“I do not think we should carry on, in respectful of your time and our time”
写写吧，攒rp。大家轻拍，知道自己业务知识不强，回家读书过后再来过。
第一场本来要见host manager，后来跑来两个engineer说调换一下顺序。没有寒暄，直接问，我们问你technical的问题。
第一个给你一个FilterIterator Class（predicate p, iterator i), 写
bool hasnext() 还有bool next()
搞了半天... 阅读全帖 |
|
|
D*****r
发帖数: 6791 | 31 那里还有好几个比较好理解的反驳：
Ontological proofs have long attracted criticism. Anselm's contemporary,
Gaunilo of Marmoutiers, criticised the ontological argument using the
analogy of a perfect island, suggesting that the ontological could be used
to prove the existence of anything. Thomas Aquinas later rejected the
argument on the basis that humans cannot know God's nature. David Hume took
empirical objection to the argument, criticising its lack of evidential
reasoning and rejected the idea that anything c... 阅读全帖 |
|
z*********g
发帖数: 5 | 32 你要说的似乎是predication
PA-RISC/MIPS/Alpha/x86 等依赖硬件speculation, 支持软件predication
当然不必要.
btw, data prefetch指令也是software managed speculation,
一般机器上都有. |
|
w*r
发帖数: 2421 | 33 some server can optimize the push down predicate better than others,
in your query, I believe all tables listed are "tables" rather than
complicated
business views. In some ad-hoc environment, complicated BI view hide
business logic and the 3-nr model beneath, therefore, when you select from
it and build joins on it, the pushdown predicate may or may not works fine.
This is the reason I tried to get all condition as close as to the join
condition.
since you are testing NULL for several columns, |
|
c**t
发帖数: 2744 | 34 http://support.microsoft.com/kb/316626
SQL Server follows the ANSI/ISO SQL-92 specification (Section 8.2, <
Comparison Predicate>, General rules #3) on how to compare strings with
spaces. The ANSI standard requires padding for the character strings used in
comparisons so that their lengths match before comparing them. The padding
directly affects the semantics of WHERE and HAVING clause predicates and
other Transact-SQL string comparisons. For example, Transact-SQL considers
the strings 'abc' an |
|
b***y
发帖数: 2799 | 35 ☆─────────────────────────────────────☆
cmsdkfz (heibao) 于 (Wed Apr 16 18:59:22 2008) 提到:
如果要求原来的顺序不能改变，那应该怎么做？
换句话说，stl里面的stable_partition是怎么实现的？
☆─────────────────────────────────────☆
thrust (WoW 无限期冬眠中) 于 (Wed Apr 16 19:41:33 2008) 提到:
template
BidirectionalIterator
stable_partition(BidirectionalIterator first,
BidirectionalIterator last, Predicate pred);
Effects:
Places all the elements in the r |
|
d******i
发帖数: 7160 | 36 just check. u r right.
the MSDN's really confusing about the pop_heap:
"
pop_heap
template
void pop_heap(RanIt first, RanIt last);
template
void pop_heap(RanIt first, RanIt last, Pred pr);
The first template function reorders the sequence designated by iterators in
the range [first, last) to form a new heap, ordered by operator< and
designated by iterators in the range [first, last - 1), leaving the original
element at *first subsequently at *(last -... 阅读全帖 |
|
f********x
发帖数: 99 | 37 The world beyond batch: Streaming 101: A high-level tour of modern data-
processing concept
http://radar.oreilly.com/2015/08/the-world-beyond-batch-streami
by Tyler Akidau August 5, 2015
Editor’s note: This is the first post in a two-part series about the
evolution of data processing, with a focus on streaming systems, unbounded
data sets, and the future of big data.
Streaming data processing is a big deal in big data these days, and for good
reasons. Amongst them:
Businesses crave ever more tim... 阅读全帖 |
|
c*****t
发帖数: 1879 | 38 It is actually far simpler than what you think.
For example, using Java 1.8 stream api,
You basically
1. Create a Stream of rows (which are key/value pairs)
2. Create a Predicate which is based on the predicate to filter the stream.
3. Create a Consumer that does the projection.
And then just collect() the result. You can optionally do the sort()
(if there is an order by). Aggregation is just map / reduce of the
stream.
Other than join, basically any single table SQL operation can be easily
do... 阅读全帖 |
|
i*********e
发帖数: 783 | 39 If no correlation,but one predicator isinsignificant,should we add them into
the model?If the model aims to predicate. |
|
s**********8
发帖数: 25265 | 40 来自主题: MedicalDevice版 - PMA Premarket approvalFrom Wikipedia, the free encyclopediaJump to: navigation,
search
Premarket approval (PMA) is the U.S. Food and Drug Administration (FDA)
process of scientific and regulatory review to evaluate the safety and
effectiveness of Class III medical devices and is significantly different
from the Premarket Notification process known as 510(k). Class III devices
are those that support or sustain human life, are of substantial importance
in preventing impairment of human health, or whic... 阅读全帖 |
|
s**********8
发帖数: 25265 | 41 Federal Food, Drug, and Cosmetic ActFrom Wikipedia, the free encyclopedia (
Redirected from 510k)
Jump to: navigation, search
This article may require cleanup to meet Wikipedia's quality standards.
Please improve this article if you can. The talk page may contain
suggestions. (February 2011)
Federal Food, Drug, and Cosmetic Act
Acronym FFDCA, "FD&C Act"
Enacted by the 75th United States Congress
Citations
Public Law 75-717
Stat. 52 US Stat. 1040
Codification
U.S.C. sections created 21 U.S.C. §... 阅读全帖 |
|
s**********8
发帖数: 25265 | 42 Overview of FDA Modernization Act of 1997, Medical Device Provisions
CDRH FDA Modernization Act of 1997 Page1
Foreword
Preface
Introduction
Investigational Device Exemptions
Premarket Approval
Premarket Notification [510(k)]
Device Classification
Device Labeling
Device Tracking
Postmarketing Surveillance
Global Harmonization
Medical Device Reporting and Recall Reports
Establishment Registration
Device Standards
Other Sections Related to Medical Devices
Foreword
The Center for Devices and Radiolo... 阅读全帖 |
|
a*****9
发帖数: 88 | 43 转发
I represent Pyramid Consulting Inc., a leading IT staffing organization. I
am part of a team responsible for servicing a major client of ours that is a
world leader in IT services.
Position: - Data Scientist
Location: - Mountain View,CA
Duration: - Long Term
Interview: - Skype
Job Description:-
Skills, Experience and Requirements
1) Proficiency in analytics-related computer languages
o SQL
o R and/or SAS
o Python, Java, or other general purpose language
2) Degree or comparable experience ... 阅读全帖 |
|
w*******y
发帖数: 60932 | 44 Ashford has this Skagen men's watch for $39 shipped. It sells for $75 on
amazon. All good reviews on Amazon.
Product Description (From Amazon):
Titanium case with a titanium bracelet. Fixed bezel. Black dial with silver
tone hands and stick hour markers. Arabic numeral marks the 12 o'clock
position. Date displays at the 6 o'clock position. Quartz movement. Scratch
resistant 30 meters/ 100 feet crystal. Case diameter: 34 mm. Case thickness:
7 mm. Jewelry clasp. Functions: hours, minutes, seconds.... 阅读全帖 |
|
v**********m
发帖数: 5516 | 45 Sir Karl Raimund Popper, CH FRS[1] FBA (28 July 1902 – 17 September 1994)
was an Austro-British[2] philosopher and a professor at the London School of
Economics.[3] He is regarded as one of the greatest philosophers of science
of the 20th century;[4][5] he also wrote extensively on social and
political philosophy.
Popper is known for his attempt to repudiate the classical observationalist
/ inductivist form of scientific method in favour of empirical falsification
. He is also known for his oppo... 阅读全帖 |
|
g********n
发帖数: 2314 | 46 【 以下文字转载自 SanFrancisco 讨论区 】
发信人: dadabear (bless you), 信区: SanFrancisco
标 题: [合集] goldenrain的观点未免偏颇
发信站: BBS 未名空间站 (Thu Feb 8 16:24:51 2007), 站内
☆─────────────────────────────────────☆
MSJ (Mission San Jose) 于 (Tue Feb 6 00:42:38 2007) 提到:
看完他blog的《现在在哪里买房风险小》，我只能笑着摇摇头。在我眼里，这个列表与
其说是“风险小”列表，不如说是“房子难涨地区列表”。试论证一二：
1. 常言道“强者恒强，弱者恒弱”。NYC, SF地区房价高企不是一年两年了，支撑房价
的不是那个affordability的percentage，而是能afford的人口数和房子总数的比例。
这里看百分比是没有多大意义的。只要还有人能买得起还愿意买，即使affordability
只有15%又如何呢？
2. 正如high tech公司的P/E要远大于... 阅读全帖 |
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b*******r
发帖数: 878 | 47 唉，猜你就要问这个问题。so predicable...
大师，算我愚钝，您老多费点口舌，解释一下你对我的问题(哪怕幼稚)的看法。 |
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b****h
发帖数: 163 | 48 我这里说的可能，不是只我觉得可能。。。如果你要我严格表达，可以用一阶谓词逻辑
表述如下：
美国人民被洗脑了，这是一个proposition，记为A
美国人民认为政府好比例高，这也是一个，记为B
美国政府好，记为C
现在已知predicate C->B, A->B
已知B，我认为A，你认为非A
为了证明需要，我们再加一个条件 ！A & ！C-> !B，（这个条件有很大局限，但我们
这里可以先不考虑）
这样你去推一下，如果你说！A， 那就必须证明出C。。。 |
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n*******h
发帖数: 47 | 49 fishy. it looks like a drama and the ending is predicable. |
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