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g**1
发帖数: 10330 | 2 http://www.thecrimson.com/article/2013/12/3/grade-inflation-mod
Substantiating Fears of Grade Inflation, Dean Says Median Grade at Harvard
College Is A-, Most Common Grade Is A
By Matthew Q. Clarida and Nicholas P. Fandos, CRIMSON STAFF WRITERS
2 hours ago
The median grade at Harvard College is an A-, and the most frequently
awarded mark is an A, Dean of Undergraduate Education Jay M. Harris said on
Tuesday afternoon, supporting suspicions that the College employs a softer
grading standard than ... 阅读全帖 |
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i******r
发帖数: 1175 | 3 King county median family income:$87,010 USD
median household: $68,065 USD
Seattle metro median household income: $63,470 USD
All higher than BC, Vancouver median family income: ($67,550) |
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发帖数: 1 | 6 Yarmouth Port, Massachusetts
From Wikipedia, the free encyclopedia
Yarmouth Port, Massachusetts
Census-designated place
Boardwalk at Bass Hole
Location in Barnstable County and the state ofMassachusetts.
Coordinates: 41°42′17″N 70°13′15″WCoordinates: 41°42′17″N 70°13′
15″W
Country United States
State Massachusetts
County Barnstable
Town Yarmouth
Area
• Total 6.47 sq mi (16.76 km2)
• Land 6.04 sq mi (15.65 km2)
• Water 0.43 sq mi (1.11 km2)
Elevation 52 f... 阅读全帖 |
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发帖数: 1 | 7 在网上发现了一个圣诞节商店，商店的建筑很有特色，而且遍布全美国，大概有70多个
店铺，以后大家买圣诞节用品可以去那里，似乎各州都有。我们这里和麻州的地址是：
CHRISTMAS TREE SHOP AUGUSTA, GA, 239 ROBERT C. DANIEL JR. PARKWAY,
AUGUSTA EXCHANGE, AUGUSTA, GA 30909, 706.738.0570, CHRISTMAS TREE SHOP
, MAGNOLIA PARK, 1117 WOODRUFF ROAD, GREENVILLE, SC 29607. 864. 297.
3667
CHRISTMAS TREE SHOPS NATICK, 1298 WORCESTER ST. ROUTE 9, SHERWOOD
PLAZA, NATICK, MA 01760, 508.655.9800
CHRISTMAS TREE SHOPS SOMERVILLE, 177 MIDDLESEX AVENUE, ASSEMBLY SQUARE
... 阅读全帖 |
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发帖数: 1 | 8 一个国家房价高低基本就是那个国家的综合实力反映。
2016年全国商品房销售均价7476元/平米
The median list price per square foot in the United States is $139. The
median price of homes currently listed in the United States is $256,000
while the median price of homes that sold is $229,200. The median rent price
in the United States is $1,595. |
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d*****u
发帖数: 17243 | 9 我说的是工资不是net-adjusted disposable income
瑞士工资比美国高很多
The Swiss median salary climbed to CHF 6,189 per month. This represents CHF
74,268 annually and compares very favourably with other places. In the US
the 2014 median salary was CHF 42,226 (US$ 41,132). In the UK it was CHF 42,
439 (￡ 27,456). Median Swiss pay is around 75% higher than median pay in
both the US and the UK. |
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l****z
发帖数: 29846 | 10 Americans’ Incomes Have Dropped 6.7 Percent During the ‘Recovery’
10:03 AM, Nov 1, 2011 • By JEFFREY H. ANDERSON
New evidence suggests there’s a reason why this economic “recovery” hasn
’t felt much like a recovery. Figures from the Census Bureau’s Current
Population Survey, compiled by Sentier Research, show that the “recovery”
has actually been harder on most Americans than the recession from which
they’ve allegedly been recovering.
Depression Great
According to Sentier’s report, the med... 阅读全帖 |
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l****z
发帖数: 29846 | 11 Heather Knight
Friday, March 9, 2012
Last year, a family of three earning $111,000 a year could afford just 23
percent of homes for sale in San Francisco - mostly in southern
neighborhoods, including Bayview-Hunters Point.
The median price of a house in the city in 2010 was $668,000. Just 2 percent
of new housing units built in the city since 2001 are single-family,
detached homes.
These were just a few of the scores of statistics presented at a special
Board of Supervisors hearing Thursday to h... 阅读全帖 |
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l****z
发帖数: 29846 | 12 Lies, Damned Lies & The BLS Inflation Statistics
by Jim Quinn • July 20, 2015
Tweet about this on TwitterShare on FacebookShare on LinkedInPrint this
pageEmail this to someone
The government released their monthly CPI report this week. Even though it
came in at an annualized rate of 3.6%, they and their mouthpieces in the
corporate mainstream media dutifully downplayed the uptrend. They can’t let
the plebs know the truth. That might upend their economic recovery
storyline and put a crim... 阅读全帖 |
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p*******m
发帖数: 20761 | 13 美国人这么多无知的人 需要教育 这个比长大了祸害要省钱多了
对世界的各种认识都会好一些
Question:
What are the new Back to School statistics for 2015?
Response:
Elementary and Secondary Education
Enrollment
In fall 2015, about 50.1 million students will attend public elementary and
secondary schools. Of these, 35.2 million will be in prekindergarten through
grade 8 and 14.9 million will be in grades 9 through 12. An additional 4.9
million students are expected to attend private schools (source). The fall
2015 public school enrollment is e... 阅读全帖 |
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S******8
发帖数: 24594 | 14 As compared with most Americans, Trump’s voters are better off. The median
household income of a Trump voter so far in the primaries is about $72,000,
based on estimates derived from exit polls and Census Bureau data. That’s
lower than the $91,000 median for Kasich voters. But it’s well above the
national median household income of about $56,000. It’s also higher than
the median income for Hillary Clinton and Bernie Sanders supporters, which
is around $61,000 for both. |
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f***e
发帖数: 5443 | 15 O编辑总结：真正中产的愤怒—论川普的崛起和DNC上三德子支持者的嘘声
首先声明一点，此文不是川普的粉丝文。虽然看起来会有这个效果，作为俄亥俄选民的
O 初选坚决支持俺们州长Kasich，但是我对他不参加RNC的小肚鸡肠行为表示遗憾，个
人认为缺乏气量了些。此外，我个人朋友圈里研究生留学生及后续H1b还有做生意的等
居多。此文有可能会让一些人不爽，提前通知一下。因为这文章是基于美国本土公民的
角度来写和分析的。:-)
RNC刚刚结束，DNC正在召开，在两个推举未来美国总统大会上发生了截然相反的两件事
情 – RNC上大佬四分五裂，互不买账，甚至还有烫伤住院不来参加的（如果只是为了
不参加个党代会就故意烫伤自己，堪称今年最拼的共和党党代表。。。）但是川普靠着
美国历史上最长的党代会结束演讲，一夜翻盘，首次在普遍民调上全面超过希拉里。
而相应的数日后的DNC，大佬们一如既往的团结，但是任何人上来说希拉里好话的，都
被场下近一半的三德子支持者大放嘘声，以至于极为尴尬。 很多三德子支持者更是放
话，宁选川普，也不要希拉里。这连三德子亲自出马都搞不定。他的支持者甚至在他建
议选希拉里的时候也嘘他。... 阅读全帖 |
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w********t
发帖数: 12853 | 16 这篇文章对你的图儿们，有不同的解释：
https://thinqopen.wordpress.com/2016/01/13/hmmm-those-charts-look-
cherrypicked/
HMMM… THOSE CHARTS LOOK – CHERRYPICKED
JANUARY 13, 2016 THINQOPEN LEAVE A COMMENT
A meme going around which attempts to illustrate Barrack Obamas Failure
displays various charts that are from the Federal Reserve Banks branch of
Economic Research (FRED the charts are from FRED). The charts claim to
display Student Loans, Food Stamps, Federal Debt, Money Printing, Health
Insurance Costs, Labor F... 阅读全帖 |
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g********2
发帖数: 6571 | 17 Clinton Campaign Admits ‘Huge Discrepancies’ in Gender Pay at Clinton
Foundation
In February of 2015, a Clinton campaign staffer detailed in an email
uncovered by WikiLeaks that the Clinton Foundation had a $190,000 pay gap
between the highest paid men and women.
The email, which comes from the account of Hillary Clinton campaign chairman
John Podesta, courtesy of WikiLeaks, shows staffer Karuna Seshasai writing
to Ian Mandel, a Democratic operative, on the subject of the Equal Pay
Foundation:
... 阅读全帖 |
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发帖数: 1 | 18 Education plays a major role as a part of Jewish identity; as Jewish culture
puts a special premium on it and stresses the importance of cultivation of
intellectual pursuits, scholarship and learning, American Jews as a group
tend to be better educated and earn more than Americans as a whole.[96][97][
98][99][100] Forty-four percent (55% of Reform Jews) report family incomes
of over $100,000 compared to 19% of all Americans, with the next highest
group being Hindus at 43%.[101][102] And while 27... 阅读全帖 |
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i****e
发帖数: 451 | 19 For the first problem, I think you can do this:
Suppose K machines, each N numbers. Assume K is even, say, and to make it
simple, N=2^m. Then
1. compute the median for each machine, O(N)=O(2^m);
2. find the median two numbers of those medians O(K);
3. assume the machines are ranked based on their median values (don't need
to rank it actually) and you can
remove the top half numbers for the first K/2 machines, and the bottom half
numbers for the rest machines.
This reduces the number in each mach |
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z*******e
发帖数: 122 | 20 Use two heaps. The left heap is a max heap, the right heap is a min heap.
Between the two heap, there is a number indicating the current median number
. When a new number comes in, we take the following operations (notice that
the two heap must have the same number of values, actually the left heap
stores all the numbers smaller than the median, and the right heap contains
the numbers larger than the median), we should also have a flag variable to
indicate whether the current median is in the s |
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p******n
发帖数: 32 | 21 You can find the problem in "Career cup 150".
Here is the question:
17.3 Numbers are randomly generated and stored in an array. Write a
program to
find and maintain the median value as new values are generated. pg 52
Solution #2: Keep an additional data structure (a tree)
Use two priority heaps: a max heap for the values below the median, and a
min heap for the values above the median. The median will be largest value
of the min heap. When a new value arrives it is placed in the below heap
if |
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h***n
发帖数: 276 | 22 according to your description, I think the solution of using two heaps would
be:
maintain a min-heap & a max-heap, which satisfying that
1) all numbers in min-heap are larger or equal than that of max-heap
2) the difference of the numbers in two heaps should be no more than 1, depe
nding on that the total number of numbers is odd or even
with the above property, the median can be easily derived from top elements
on heap(s)
therefore, the algorithm is designed to maintain the above two properties... 阅读全帖 |
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z****o
发帖数: 78 | 23 1的堆栈是无序的, pop多的那个出来的东西不一定是新的median
栈中记录所有比median大的
数。
pop多的栈，作为新median，将
老median插入少的栈中。
up |
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s*****g
发帖数: 5159 | 24 This involves odd and even number case. For simplicity, we assume P and N ar
e both odd.
We sort the P arrays on the P machines, each of them has a mediam within the
machine.
We sort the P medians, and get an order.
The (N-1)/2 * (P-1)/2 numbers that larger than the larger (P-1)/2 medians ar
e dismissed.
The (N-1)/2 * (P-1)/2 numbers that smaller than the smaller (P-1)/2 medians
are dismissed.
Look at the following chart
A1 > B1 > C1 > D1 > E1
A2 > B2 > C2 > D2 > E2
A3 > B3 > C3 > D3 > E3
and C1... 阅读全帖 |
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m****u
发帖数: 3915 | 25 看着很像这个median of median算法
可是感觉又不太对
因为这些数已经分散在各个machine上了
除非你需要把所有的数先放在一个machine里，然后再用median of median算法找合适的pivot |
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i**********e
发帖数: 1145 | 26 The "Find k-th smallest element" can be applied directly when m+n is odd.
However, if m+n is even, you have to call the function twice and average the
two values to get the median.
A better way to do this is to get the median (X and Y) from the two arrays
and compare. If X < Y, then the real median of two sorted arrays must be
somewhere between X and Y. Similar for when X >= Y, then the real median
must be somewhere between Y and X.
For arrays of different size (ie: m != n), we must be careful w... 阅读全帖 |
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i**********e
发帖数: 1145 | 27 MIT 的 handout 里有提出这题的解答，利用 binary search 巧妙的思路.
http://www2.myoops.org/course_material/mit/NR/rdonlyres/Electri
但是我觉得他那里指的 median 定义似乎不完全对:
Suppose that the median is A[i]. Since the array is sorted, it is greater
than exactly i−1 values in array A. Then if it is the median, it is
also greater than exactly j = ceiling(n/2) − (i − 1) elements in
B.
根据以上的定义，两个数组总数 (n) 为偶数时，取的 median 是元素第 n/2 个，而不
是两个相邻元素之平均. 不知道有没有理解错误，请高人指引.
觉得主要难度要找寻当数组总数为偶数时，要找到两个相邻的元素再找平均. 如果要找
一个元素就容易，但是似乎同时... 阅读全帖 |
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g***s
发帖数: 3811 | 28 ohh... that's correct. :)
so, the answer could not be weight median.
but should be one of (weight median - 1, weight median, weight median + 1) |
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w****x
发帖数: 2483 | 29
举例, 如果是编号1..n个点, n是奇数, 那么假设n-2个点的median点是距离和最小的,
那么对于n个点中间的n-2个点来说, 这n-2个点到median的距离和最小, 现在在这个条
件下(n-2)要证明n个点的距离和最小的也是median.
假设这n个点的range是d, 那么对于新增的左右两个端点, 所有点的额外(相对于n-2的
情况)距离和增值都是d, 那么还是median的距离和最小.
偶数同理 |
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z********i
发帖数: 568 | 30 1. 找到中间值（MEDIAN）m in time O(n)
2. 跟中间值比较，分为两半。检查小的这一半有多少in time O(n)。如果正好m个数，
继续大的这一半的收索。否则，继续小的这一半的收索。
复杂度：T(n)=T(n/2)+n--->T(n)=O(n).
例子：3 5 1 8 9 7 0 2
1. median: 3
2. >3: 5 8 9 7
<3: 1 0 2(3个数)
3. continue search 5 8 9 7.
4. median 7.
5. >7: 8 9
<7: 5(1个数<7-4=3)
6. continue search 5.
7. >5:
<5: (0个数<5-4=1)
8. return the last correct median 3.
9. search all the array again to find numbers not greater than 3.
Assumption: no duplicated numbers. |
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b******v
发帖数: 1493 | 31 如果不考虑溢出的话，这两个没区别，都是算median或lower median。要是算median或
higher median的话，用start+ n/2. 其中n=end-start+1是元素个数。
★ 发自iPhone App: ChineseWeb - 中文网站浏览器 |
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s****r
发帖数: 41 | 32 it will be be helpful if you know the nature of the data set. In many cases,
the median of a big data set is no much difference than the median of its
subset. In network traffic analysis, we have observed that the median
becomes stable fairly quickly, when we counted the sizes of transferred
objects on network. So usually, we need only compute the median for the data
objects in a small time window, and use it to represent the media for the
whole day, or other long time ranges. |
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K********y
发帖数: 47 | 33 我见过的是Manhattan distance。答案的x/y坐标分别是N个点x/y坐标的median。二维
问题可以分离：sum_i(|x-x_i|+|y-y_i|) = sum_i(|x-x_i|) + sum_i(|y-y_i|)。
median的两边各有N/2个人，从median往左（上）走一步，有N/2个人多走一步，N/2个
人少走一步。如果左边人数多于右边，往左挪一步可以减少总步数。当然如果N是偶数
，其实不需要真正的median，可以是最中间两个人之间的任何地方。 |
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b****g
发帖数: 192 | 34 来自主题: JobHunting版 - 周末出道题 扫一遍，用quick select找第n/2-k小的，O（n）
再扫一遍，用quick select找第n/2+k小的，O（n）
在扫一遍，找出上述两个值之间的一群数，O（n）
离median最近的k个数就再这2k个数里面（先把median去除）
用这2k个数与median的差的绝对值组成新数组，记录好与原2k数组的对应关系
扫一遍这个数组，用quick select找第k小的，O（k）=O（n），因为k
扫一遍这个数组，找出比刚才的第k小的还小的，O（k）
以上这k个数对应的就是离median最近的k个数 |
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d****n
发帖数: 397 | 35 vector median(vector & v, int k) {
vector::iterator iter;
vector median;
iter=v.begin();
while((iter+k-1)!=v.end()) {
vector temp(iter,iter+k);
sort(temp.begin(),temp.end());
median.push_back(temp[k/2]);
iter++;
}
return median;
}
这个比较简单，也没有用stack,queue,hash. |
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m*****n
发帖数: 2152 | 36 "第二题是二维平面有若干个点，找一个点使得到他们的曼哈顿距离最短。就是找
median
。分析后讲了quick select找median。"
楼主分析的不对吧，这个怎么可能是找median呢？
应该是找离average最近的点，这个点不一定是median。 |
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a******u
发帖数: 69 | 37 Median of median那个方法我没有仔细研究过，面试的时候也没想起来。写随机pivot
的quick select应该也没有太大问题。但他也没让我写哎。anyway，谢谢鼓励
quick select按 median of median的最优解法worst case 是 O(N),你该提下的。如果
让你写就写那个选一个pivot的就行了我觉得你已经答得........ |
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p******n
发帖数: 185 | 38 (median(x1, x2
在一个点既有x median, 又有 y median.
x2
median |
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q**5
发帖数: 24 | 39 https://www.glassdoor.com/blog/25-highest-paying-companies-amer
5. Google
Median Total Compensation: $153,750
Median Base Salary: $123,331
Industry: Technology
12. Facebook
Median Total Compensation: $150,000
Median Base Salary: $127,406
Industry: Technology
怎么G和F的Total Compensation中位数才15万多点???!!!不是说20万贫困线吗??? |
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d*s
发帖数: 22 | 41 it's mentioned upper floor that the average(mean) tends to be misleading,
median is the better stat to look at.
Here is the link to the median household income / house value / demograhpics/
etc. etc. of almost all cities/towns of US as of year 2000.
Of course, you could dig these all out by researching the census 2000
official web site.
http://www.city-data.com
Top 100 Cities with Highest Median Household Income (pop. 5000+)
http://www.city-data.com/top2.html
Top 100 Cities with Highest Median H |
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q*z
发帖数: 13362 | 42 我看到一个最新的统计
bayarea
median house income $67770
median SFH $689240
也就是说,在bayarea大部分人无法靠正常收入买房了
我其实想不清楚,哪来的这么多有钱人在买房
dallas没有新的数据
house median income $45,887
median home $115,139
dallas符合3倍的贷款原理
bayarea的是10倍了 |
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k*******2
发帖数: 4163 | 43 你们那儿很合理啊。
我们这儿是这样的：
Estimated median household income in 2000: $77k
Estimated median house/condo value in 2000: $286K
Estimated median household income in 2008: $97k
Estimated median house/condo value in 2008: $578K |
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A***a
发帖数: 196 | 44 查了查Yahoo Neighborhood，学区A， Median Income 99k, Median Home value 607k,
cost of living index 165. 学区B, Median Income 83k, Median Home value 383k,
cost of living index 108.是不是说明A要好一些呀？可是从长远来看，这些会变的
吧。 现在孩子还小，等他们长大了， 也许情况会变？ |
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a****g
发帖数: 3027 | 45 乱judge没有用.
敬请解释理论：
How do numbers above original median value change affect the median value if
none of them fall below the original median value? Or do you have a unique
way to count to get a new median value higher? |
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s*8
发帖数: 1933 | 46 比如newton,
Homes for Sale Jun '12 vs. Prev. Year
# Homes for Sale 444 15.9%
Median List Price $800K 8.2%
Median List $/SqFt. $382 12.4%
Homes Sold Jun '12 vs. Prev. Year
# Homes Sold 133 -2.9%
Median Sold Price $701K -1.3%
Median Sold $/SqFt. $357 -1.1%
% Sale to List 97.3% -0.3%
除了Seller要价比去年高外，实际售价其实比去年还跌了，成交量，单位地价等，统统
下跌。 |
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l******a
发帖数: 16364 | 47 you sure?我google了一下： Median
Finding the median of a set of numbers is similar to finding an average, but
it relies less on averaging and more on where the middle number is in the
series. In order to find the median of a series of numbers, you first need
to order the series from least to greatest. Then, you would count how many
numbers there are in the series. If there is an odd number of numbers, find
the middle number (for example, if there are 7 numbers, the 4th number would
be the middle, bec... 阅读全帖 |
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d****o
发帖数: 3197 | 48 原题是这样写的
Find the median (the middle number)
数字个数都是奇数，2年纪还没学除法，没法儿找偶数个数的median
我觉得既然引进median这个词，那就得专词专用，median就是排序后的中间值，不能有
特殊情况。
middle number就不好说了，我没学过，不知道美国小学咋定义。 |
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f**********n
发帖数: 29853 | 49 你说AA不是大问题，现在又追加说这美国就没啥大问题。这都是个人观点，没啥对错，
因为判断问题是大是小本来就很主观。
至于你说的别的提升华人地位的方法，都是好建议，都值得去做。但我想说这和反AA一
点矛盾没有，可以并行啊。
AA问题是大是小，我就列事实好了，这下应该没人说是忽悠吧。
* 在1976年和1978年之间，哈佛新生班级里亚裔的比例从3.6%增加到了6.5%，这个和大
规模 增加的亚裔申请率重合。
* 不顾亚裔申请增加这个事实，哈佛大学随即提高了亚裔学生的录取标准。
* 在1983年，一个在哈佛招生办公室工作过的本科生写了个报告“不可能的录取”。
调 查了25个大学，发现，尽管亚裔对哈佛和其他大学的申请大幅增加， 亚裔的录取数
目 并几乎完全没有增加。
再来一点研究结果，这是密大AA被彻底废除之前。
The University of Michigan awarded a very large degree of preference in
undergraduate
admissions to blacks over whites and Asians with the sam... 阅读全帖 |
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u****r
发帖数: 478 | 50 ESI and AFAM
buy price at market opne price on first day of first week of July.
NYSE:ESI Technical Analysis
NYSE:ESI - ITT Educational Services, Inc.
ESI - Sector: Services, Industry: Schools.
ESI gained 3.35% on 07/01/11.
ESI is trading in the range of $66.22 - $92.13 in the past 30 days.
Money Flow Index (MFI) is bearish and moving down for ESI.
The 10-day simple moving average is bullish and moving up for ESI.
Average True Range (Atr) is bullish for ESI.
Commodity Channel Index (CCI) is bulli... 阅读全帖 |
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