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全部话题 - 话题: sift
1 2 3 4 5 下页 末页 (共5页)
r***w
发帖数: 142
1
128向量只是基于HoG的descriptor的一种选择。你可以使用36,64甚至256.这个应该不
是SIFT的贡献。
我觉得连SURF里基于HAAR WAVELET的也算是一种变相的HOG。
q*****i
发帖数: 30
2
刚开始做一个与图像处理有关的project,想请教几个问题
1. 我现在用的是oxford 的affine covariance detector,想知道一下当每一个affine
region 取出来以后,它是怎么计算sift feature的。是不是基于每一个region的中心的
scale & orientation 来计算?
2. 这个软件怎么计算一个指定区域的sift feature,我看它的input 参数里面有个-p
什么的,但是基于什么原理来计算我还是没有查到。
3.关于这个软件谁有专门的help manual? 比如我在找region feature的时候,朋友告
诉我-noangle可以使得每个region 只有一个sift feature (-p的情况下)。 但是如果
我直接用hasaff or hesaff找的时候,这个-noangle 没有用。每个点可能有多个sift
feature。
thx in advance。
T**********n
发帖数: 480
3
SIFT是个断层,在一定时期内大家言必称SIFT,就想十年前言必称SVM一样
但是SIFT这玩意比SVM的一个好处是的performance的确很好,不仅是理论好而已
所以David Lowe的贡献也是实实在在的
可是这东西再好,能用到再多地方,其实也就是个小工具
况且其实计算feature vector的方法不是lowe发明的,而是引用的,
sift的贡献主要是location
所以这东西距离图灵奖还差十万八千里呢

了。
图像
l*n
发帖数: 529
4
来自主题: JobHunting版 - 问个题。
你说的array是指的heap吧?
用heap的话,可以在deque/hashmap数据结构里记录并更新相应数据在heap中的位置,
通过在sift的时候更新数据的heap位置信息就好,不会增加sift操作的复杂度。
有这个信息很容易删除heap中的数据,heap出现孔洞之后,把heap的last element换过
来再做一次sift就好了。
c****t
发帖数: 19049
5
来自主题: SciFiction版 - 云图 英文版
LETTERS FROM ZEDELGHEM
CHATEAU ZEDELGHEM,
NEERBEKE,
WEST VLAANDEREN
29TH-VI-1993
Sixsmith,
Dreamt I stood in a china shop so crowded from floor to far-off ceiling with
shelves of
porcelain antiquities etc. that moving a muscle would cause several to fall
and smash to bits.
Exactly what happened, but instead of a crashing noise, an august chord rang
out, half-cello,
half-celeste, D major (?), held for four beats. My wrist knocked a Ming vase
affair off its
pedestal—E-flat, whole string section, g... 阅读全帖
q*****i
发帖数: 30
6
【 以下文字转载自 CS 讨论区 】
发信人: qiangyi (haha), 信区: CS
标 题: 请教几个image feature detection的问题
发信站: BBS 未名空间站 (Sun Oct 12 05:45:40 2008)
刚开始做一个与图像处理有关的project,想请教几个问题
1. 我现在用的是oxford 的affine covariance detector,想知道一下当每一个affine
region 取出来以后,它是怎么计算sift feature的。是不是基于每一个region的中心的
scale & orientation 来计算?
2. 这个软件怎么计算一个指定区域的sift feature,我看它的input 参数里面有个-p
什么的,但是基于什么原理来计算我还是没有查到。
3.关于这个软件谁有专门的help manual? 比如我在找region feature的时候,朋友告
诉我-noangle可以使得每个region 只有一个sift feature (-p的情况下)。 但是如果
我直接用hasaff or hesaff找的时候,
w*********s
发帖数: 2136
7
来自主题: WorldNews版 - 小布什回忆录被指是抄编大杂汇

George Bush Book 'Decision Points' Lifted From Advisers' Books
Huffington Post 11-12-10
When Crown Publishing inked a deal with George W. Bush for his memoirs, the
publisher knew it wasn't getting Faulkner. But the book, at least, promises
"gripping, never-before-heard detail" about the former president's key
decisions, offering to bring readers "aboard Air Force One on 9/11, in the
hours after America's most devastating attack since Pearl Harbor; at the
head of the table in the Situ... 阅读全帖
c*****m
发帖数: 315
8
来自主题: JobHunting版 - 问两道google面试题
搞了一上午搞出来了第一题,包含以下几点
1. 基本想法类似于HEAPSORT, 每次取HEAP 的最小值,和BST tree 当前最小位置的值
交换,然后再维护HEAP 的结构,同时取BST 中序遍历的下一个值。在整个过程中,树
的一部分变成了BST TREE, 另一部分还是HEAP 结构。
下面介绍相关的步骤。
2. 取HEAP 的最小值:粗略的想法是用HEAP[0]。这里有个问题:当HEAP[0] 被并入BST
部分以后,最小值不再是HEAP[0],而是HEAP[0] 的右子树。可以证明HEAP[0] 被并入
BST 的时候,它的左子树已经全部在BST 里了,而它的右子树都不在BST里,因此可以
TRACK 当前HEAP 的ROOT。
3.维护HEAP 的结构。算法和SIFTDOWN 一样,但要注意的是SIFT DOWN 的时候必须要检
查当前节点的子节点是不是在BST 部分,如果是,就停止交换。要做到这一点,只需要
TRACK 住当前HEAP 的最小值,BST 里的元素都会小于它。
代码如下(HEAP 用数组heap 表示):
//取一个BST子树最小节点的索引, 辅助函数
... 阅读全帖
l*n
发帖数: 529
9
来自主题: JobHunting版 - G电面的一个题
建一个map来记录heap中节点的index,然后在heap的sift操作中节点互换时更新map的
内容。最后删除heap节点时,把最后一个节点放到删除的位置然后做一次sift操作。
l*n
发帖数: 529
10
来自主题: JobHunting版 - G电面的一个题
建一个map来记录heap中节点的index,然后在heap的sift操作中节点互换时更新map的
内容。最后删除heap节点时,把最后一个节点放到删除的位置然后做一次sift操作。
k******e
发帖数: 19
11
来自主题: JobHunting版 - LinkedIn面经(已跪),攒个rp

情况
你这明显是先入为主了,面试最忌讳的就是先入为主,不跟着面试官的思路来想。
这问题是个很基本的东西,MINHEAP和MAXHEAP都可以。基本就是有N个ITEM,找其中的
TOP K的问题。
- 用MINHEAP的话,空间复杂度是O(K), 时间复杂度是O(NlogK)。
这个方法适用于当数据不能PRELOAD进MEMORY,比如说数据是从一个STREAM来的。你
就是先建立一个大小是K的MINHEAP, 在ROOT的就是最小的,其他K-1个都比ROOT大,然
后从省下的N-K个里一个一个取,和你的ROOT比较,如果比ROOT小的就丢掉,比ROOT大
的就REPLACE ROOT,然后将其 SIFT DOWN。
- 用MAXHEAP的话,空间复杂度是O(N), 时间复杂度是 O(KlogN)。
这个办法只能用在N不是太大的时候,可以先HEAPIFY,用时O(N)。现在你的ROOT
是最大的,把ROOT拿掉放进你的RESULT里,你的HEAP的ROOT空了,把最后一个元素放进
ROOT,SIFT DOWN, 又得到一个MAXHEAP,重复刚才的操作K次,得到你的RESU... 阅读全帖
k******e
发帖数: 19
12
来自主题: JobHunting版 - LinkedIn面经(已跪),攒个rp

情况
你这明显是先入为主了,面试最忌讳的就是先入为主,不跟着面试官的思路来想。
这问题是个很基本的东西,MINHEAP和MAXHEAP都可以。基本就是有N个ITEM,找其中的
TOP K的问题。
- 用MINHEAP的话,空间复杂度是O(K), 时间复杂度是O(NlogK)。
这个方法适用于当数据不能PRELOAD进MEMORY,比如说数据是从一个STREAM来的。你
就是先建立一个大小是K的MINHEAP, 在ROOT的就是最小的,其他K-1个都比ROOT大,然
后从省下的N-K个里一个一个取,和你的ROOT比较,如果比ROOT小的就丢掉,比ROOT大
的就REPLACE ROOT,然后将其 SIFT DOWN。
- 用MAXHEAP的话,空间复杂度是O(N), 时间复杂度是 O(KlogN)。
这个办法只能用在N不是太大的时候,可以先HEAPIFY,用时O(N)。现在你的ROOT
是最大的,把ROOT拿掉放进你的RESULT里,你的HEAP的ROOT空了,把最后一个元素放进
ROOT,SIFT DOWN, 又得到一个MAXHEAP,重复刚才的操作K次,得到你的RESU... 阅读全帖
k**o
发帖数: 3006
13
☆─────────────────────────────────────☆
boycott (haha) 于 (Thu Apr 14 14:02:11 2011, 美东) 提到:
我刚刚看到了这个用来演示一种新的物体跟踪的算法的视频,它是一个博士论文里的一
部分。Zdenek Kalal是英国萨里大学的一个捷克学生。他演示的是他的神奇的精确定位
系统,这个系统几乎可以跟踪镜头里的任何物体,只要你能看见它,并把它选中。它能
做很多神情的事情。在这个视频中,他演示了通过摄像机拍摄他的手指、把他的手指选
做目标。系统于是就能精确的跟踪他的手指的动作。更令人惊奇的是,这个系统能够通
过分析物体的运动来完善跟踪算法。你能在很短的时间里教会它跟踪你的手指、面孔或
在高速公路上狂颠的轿车。有了这套系统,我们几乎真的可以实现”Minority Report
“那样的人机界面。就像微软Xbox的Kinect那样,而这个效果更好。
Kalal有12个视频来演示他的这套算法都能做什么。只要你有一个好的摄像头,把
这个软件装到计算机上、平板电脑上或手机里,它就能精确的定位跟踪你的前额上... 阅读全帖
g***j
发帖数: 40861
14
看微软论坛上的:
一个人发帖说:
OMFG this has to be the worst UI that has come out in the last 30 years. I
would prefer DOS to this user UNFRIENDLY POS. I have been a loyal windows
user since the DOS/windows years. This completely nonsense UI has convinced
me to convert all of my home PC's to Apple. There is absolutely no sense in
this latest windows operating system. Microsoft has completely lost it's way
and abandoned it's PC user base for some attempt at an Apple clone that is
completely useless for desktop... 阅读全帖
a*******8
发帖数: 4534
15
来自主题: pets版 - 貓草蛋糕!!誰做過??
2 tbsp All purpose flour (preferably wholemeal flour)
1 tsp Cornstarch
1 g Baking powder
1 tbsp Catnip
1 tsp Olive oil
2 tbsp Wet canned food (I used bio-beef bites)
2 Egg yolks
Meringue:
2 Egg whites
Drops of lemon juice (or white vinegar)
1 tsp Powdered sugar
蛋黄糊:
2大勺 中筋粉(用全麦粉较佳)
1小勺 玉米淀粉
1克 泡大粉
1大勺 猫薄荷
1小勺 橄榄油
2大勺 猫罐头(我用的牛肉丁)
2个 蛋黄
蛋白液:
2个 蛋白
数滴 柠檬汁(或白醋)
1小勺 糖粉
Method / 做法:
Sift flour, starch, and baking powder together in a bowl. Preheat the oven
to 180C/350F. (it took my old oven 35 minutes... 阅读全帖
C****i
发帖数: 1776
16
CHAPTER V
Of Providence
I. God the great Creator of all things doth uphold,[97] direct, dispose, and
govern all creatures, actions, and things,[98] from the greatest even to th
e least,[99] by his most wise and holy providence,[100] according to his inf
allible foreknowledge,[101] and the free and immutable counsel of his own wi
ll,[102] to the praise of the glory of his wisdom, power, justice, goodness,
and mercy.[103]
II. Although, in relation to the foreknowledge and decree of God, the first
... 阅读全帖
l******a
发帖数: 1203
17
馬可福音13:1-2這樣記載:「耶穌從殿裡出來的時候,有一個門徒對他說:"老師,請
看,這是多麼美好的石頭!多麼美好的建築!" 2 耶穌對他說:"你看見這些偉大的建
築嗎?將來必沒有一塊石頭留在另一塊石頭上面,每一塊都要拆下來。" 」
對聖殿的讚嘆
第一世紀的猶太人,都對聖殿讚不絕口,羅馬舉世聞名,他拉目Talmud曾有此說:沒有
見過聖殿最華麗的一面,就從未見過美妙的建築 (b. Suk. 51b; b. B.Bat. 4a)。主後
一世紀的猶太人歷史學家約瑟夫形容希律聖殿的牆,人所聞中最偉大的工程。
又因猶太教只有一個中心-耶路撒冷聖殿,所以聖殿比其他古代的聖所都更大更華麗,
散居各地的猶太人,視之為永垂不朽,甚至認為聖殿是萬夫莫敵的,產生聖殿不滅論。
因為猶太人相信神會無條件的捍衛自己的聖殿,這是最好的保險。難怪門徒會對聖殿的
讚嘆。
多麼美好的石頭
現在西牆廣場下面,可參觀西牆隊道,在這條隊道,可目睹當日第一世紀耶穌時代的聖
殿的石頭,當中最大塊的石頭是45尺 x 11尺 x 15尺,共570噸重(1噸=2,000磅,即共
1,140,000磅。)
一隻成年的非洲大象約4.6噸... 阅读全帖
w***g
发帖数: 5958
18
D. Lowe确实牛x,但SIFT并不是语义层面的feature,能达到的精确度也差不多到顶了。
我觉得最近几年在用SIFT搞识别的那批人已经误入歧途了,再搞N年也搞不出来的。图像
识别还需有新的突破才行。

块最突出的
不单算CV的。
结果。HICI的Kanade/Zisserman反而没有看到什么可以拿奖的成果,这可能是Vision拿
不到奖的原因。
为什么推荐别人得奖呢。
k*****s
发帖数: 49
19

块最突出的
不单算CV的。
结果。HICI的Kanade/Zisserman反而没有看到什么可以拿奖的成果,这可能是Vision拿
不到奖的原因。
为什么推荐别人得奖呢。
完全不理解为什么要说最突出的是david lowe,如果想说sift或者其他搞local featur
e descriptor的,sift在04年以前的各大conf都被rej了,最后搞了个patent了事。小波
变换能算在hartley的头上???
kanade的资格够老了,人家在vision界早就终身成就奖了,啥叫没有看到什么可以拿奖
的成果?
Zisserman搞多目视觉的,稍微后辈一点,得vision奖还要过两年。
vison界人才还是很多的,只不过整体水平现在被很多鱼目混珠的人灌水,搞臭了。但是
不能因为臭了,就否定vision里好的工作。
我同意任何奖项都需要人缘,或许影响了vision的参奖,但是我还是要说vision拿奖先
天条件不好。vision的大多数问题是ill-posed,而且参考其他领域的知识太多。几乎没
有什么vision的问题可以说我100%证明没错,一旦涉及到稍微语义一点的理解层面,
p*******r
发帖数: 475
20
想起来有人问Lowe,说每年这么多灌水搞特征提取的,你就不怕有人做出来超过SIFT的?
Lowe回答是,没事,他们搞的那些我全都搞过,效果都不如SIFT好。

一个
w***g
发帖数: 5958
21
image的相似度有很多不同的定义,对于不同的应用首先要选一个最符合需要的定义。
然后才是怎么算的问题。常见的相似度定义有
1. 视觉上/一眼看过去相似。主要用color histogram算。传统的CBIR一般都用这个,
但是这个单独自己用的话没啥实际用处。
2. 是否是同一个图像的不同版本。如果不需要检测诸如大图包含小图这种情况的话
就用global feature,比如GIST。如果要检测大图中的小图的话就是local feature,
最牛的算法都有专利保护,比如SIFT和SURF。别的免费可以用的我刚刚都试过一圈,
效果都比较差。
3. 照片是否是同一个rigid object,也用SIFT。
4. 照片是不是同一个人,人脸特征抽取是一大块,基本上是要先register眼耳鼻口
的位置,然后基于这些位置抽取特征。
5. 非rigid object的话得各个击破,比如人脸应为比较重要所以有很多算法可以用。
别的基本上没法做。
6. 图片是不是同一类对象。这个就是图像识别问题了。几年前最牛的是dense sampled
local feature + sparse encodin... 阅读全帖
w***g
发帖数: 5958
22
来自主题: Programming版 - CNN和template matching到底有啥区别
是template matching, 如果光从预测算法来看, 甚至还不如传统的template matching.
deep learning的template matching就是内积+threshold, 可以认为是最最最土的
template matching. 传统的template matching算法往往比这个复杂, 而且也更
robust, 比如允许一定程度上的warping. 有时候对象一抖, template就匹配不上了.
Deep learning的对应方法是redundancy, 搞好多好多templates. 这个匹配不上了,
那个或许能匹配上. 以上不是关键.
deep learning牛x的地方是能够训练这些template, 而且是:
1. 一锅子训练. (2012年以前是一层一层训练, 当时甚至认为要deep必须一层一层
训练, 现在看来是不对的.) 一锅子的好处是层与层之间是配套的. 解的是一个
全局最优化问题, 而不是一系列局部最优化问题然后拼起来.
(注意不是全剧最优解. 不管是全局问题还是局部问题, 往往都得不到最优解.
但是全局次优解... 阅读全帖
H****S
发帖数: 1359
23
我试着回答一下这个问题。最古老的AI学习算法是上世纪50,60年代提出的perceptron
算法,说白了就是完全前向输出(feedforward)神经网络,输入和输出之间的连接权
值也会更据输出结果和目标值之间的同于不同发生改变,但是是一种机械的改变,不是
基于回馈(backpropagation)的改变。这么一个算法虽然简单,但是刚刚诞生的时候
却着实引起了轰动,perceptron的作者声称这个算法已经可以解决所有的AI学习问题,
AI的真正实现似乎已经唾手可及。好景不长,随后有人专门写了一本书数学证明了
perceptron无法解决的一系列AI问题,其中一个简单例子暨perceptron无法辨别
wrapped sequences,比如1234和4123其实指向的是同一个pattern。这个问题对于人类
来说如此简单,但是perceptron却是完败,再加上之前的对神经网络的hype又太高,导
致了后者一时间臭名昭著。Hinton说他选择研究神经网络做方向的时候,同行几乎见面
就和他说神经网络是没有前途的。之后神经网络重新崛起肇始于Hinton划时代的
Backprogagat... 阅读全帖
d*****g
发帖数: 441
24
来自主题: History版 - 12,000-year-old mine found in Chile
12,000-year-old mine found in Chile
Posted Mon Dec 6, 2010 10:56am AEDT
Archaeologists from the University of Chile have discovered a 12,000-
year-old iron oxide mine in the north of the country.
Researchers say it is the oldest mine discovered in all the Americas.
Chief researcher Diego Salazar said the iron oxide was used by
Huentelauquen Indians as a pigment in dying cloth and in religious
rituals, revealing an unexpected sophistication in what was previously
considered a primitive group of p... 阅读全帖
d******a
发帖数: 32122
25
如果说了,原话是什么?
-----------------
An important component of using analytics in business is a push towards “
visualization.”
Marketing analysts often have to sift through mounds of data to
draw important conclusions. Many times these conclusions are best
represented in a
chart or graph. As Confucius said, “a picture is worth a thousand words.”
H****g
发帖数: 14447
26
记错了,是华盛顿时报。
http://www.washingtontimes.com/news/2010/nov/9/drone-footage-overwhelming-analysts/
Drone footage overwhelms analysts
Pentagon looking for better ways to sift through data
By Eli Lake
-
The Washington Times
8:01 p.m., Tuesday, November 9, 2010
The U.S. military is fast running out of human analysts to process the vast
amounts of video footage collected by the robotic planes and aerial sensors
that blanket Afghanistan and other fronts in the war on terrorism.
Speaking at an intelligen... 阅读全帖
F*********n
发帖数: 2914
27
来自主题: Military版 - NASA 爆料: 发现外星生命
http://news.yahoo.com/s/digitaltrends/nasascientistfindsevidenc
Aliens exist, and we have proof.
That astonishingly awesome claim comes from Dr. Richard B. Hoover, an
astrobiologist at NASA’s Marshall Space Flight Center, who says he has
found conclusive evidence of alien life — fossils of bacteria found in an
extremely rare class of meteorite called CI1 carbonaceous chondrites. (There
are only nine such meteorites on planet Earth.) Hoover’s findings were
published late Friday night in the Journ... 阅读全帖
L*******a
发帖数: 21
28
来自主题: Military版 - kayaker长得挺帅的
别傻了
他以前在日本开过n次会
还做过committee:
Technical Program Committee (TPC) Membership:
 IEEE Embedded Computer Vision Workshop, in conjunction with ICCV,
2009, 【Kyoto, Japan, 2009.】
马上就要去ICASSP,ICASSAP是信号处理方面排名第一的conf
Kayaker的科研给力啊
X. Xin, Z. Li, and A. K. Katsaggelos, “Laplacian SIFT for Compact
Descriptor in Visual Search”,
accepted, IEEE Int'l Conference on Audio, Speech and Signal Processing (
ICASSP), Kyoto, Japan,
2012.
S*********y
发帖数: 481
29
University professor to study life after death
By Claudine Zap | The Sideshow
Pop quiz: Does life exist after death?
A University of California, Riverside philosophy professor, John Martin
Fischer, has been awarded a three-year, $5 million grant by the John
Templeton Foundation to study just this topic—and yes, students can take
his class.
Fischer noted in an email to Yahoo News, "Both I and my post-doc, Benjamin
Mitchell-Yellin, will teach related classes over the next three years. I
have frequ... 阅读全帖
l********u
发帖数: 910
30
Internet Is Global 911 For Dying Woman
September 03, 1995|By Anita Srikameswaran, Tribune Staff Writer.
http://articles.chicagotribune.com/1995-09-03/news/9509030264_1
On April 10, two college students in Beijing transmitted a desperate SOS
across the Internet and opened a new dimension in the practice of medicine:
"Hi. This is Peking University in China . . . A young, 21-year-old student
has become very sick and is dying . . . Doctors at the best hospitals in
Beijing cannot cure her . . . So no... 阅读全帖
s****e
发帖数: 392
31
路人都看不下去了。 孙党们都不读完全文吗?收到约2000封回复,看了不到一半就有
近100回复建议thallium中毒。从那里能得到比例是 100/2000?
"Sifting through nearly half of the 2,000 responses, he found nearly 100
physicians and chemists who suggested thallium toxicity."
s*********2
发帖数: 26
32
文章中说 Sifting through nearly half of the 2,000 responses ,就是说翻阅都近
一半(2000中的),快近100名医生和化学家认为是铊中毒。 也不是说就100份回信,
估计有人是回了多次的。换据话说在这些回复中认为铊中毒的可能性是远远高于其他的
猜测。贝在救朱还是起了决定性作用的。
c******g
发帖数: 322
33
Internet Is Global 911 For Dying Woman
September 03, 1995|By Anita Srikameswaran, Tribune Staff Writer.
http://articles.chicagotribune.com/1995-09-03/news/9509030264_1
On April 10, two college students in Beijing transmitted a desperate SOS
across the Internet and opened a new dimension in the practice of medicine:
"Hi. This is Peking University in China . . . A young, 21-year-old student
has become very sick and is dying . . . Doctors at the best hospitals in
Beijing cannot cure her . . . So no... 阅读全帖
w****y
发帖数: 2501
34
“Sifting through nearly half of the 2,000 responses, he found nearly 100
physicians and chemists who suggested thallium toxicity.”
这100个医生和化学家每人要写多少封信才能凑足贝志成的30%?看来这些人不太忙,而
且喜欢重复。
w********9
发帖数: 8613
35
来自主题: Military版 - 惊讶于德国人的英语能力
这是Shorter Oxford American English Dictionary第五版列出的与德语或者日耳曼语
相关的英语词根或词汇。
-at, suffix2. + -dom, suffix. + -ed, suffix1. + -ed, suffix2. + -en, suffix1
+ -en, suffix2 + -en, suffix5 + -en, suffix6 + -er, suffix1. + -er, suffix3
. + -er, suffix5. + -est, suffix1. + -est, suffix2. + -et, suffix2. + -eth,
suffix1. + -hood, suffix. + -ing, suffix1. + -ing, suffix3. + -ish, suffix1.
+ -kin, suffix. + -le, suffix1 + -le, suffix3 + -less, suffix. + -ling,
suffix1. + -ling, suffix2 + -ly, suffix1. + -ly, s... 阅读全帖
q***7
发帖数: 2011
36
来自主题: Military版 - 说说B52飞越土共防空识别区
把这个回复也贴到你这吧:
Cross posting here because the debate here is way off the mark:
The article is being deliberately misleading, and the US response doesn't
help its allies at all.
First, the NYT/BBC confuses an Air Defense Zone and an Air Defense
Identification Zone. An ADZ implies control of the territory or sea
underneath it, and comes with shoot-down rights if the counterparty does not
comply. An ADIZ is does not obligate other parties to do anything - it
simply obligates the originating party (he... 阅读全帖
q***7
发帖数: 2011
37
来自主题: Military版 - reddit上的一个神回复
这个回复评分很高,不阿Q,貌似中国还是赚了里子的:
Cross posting here because the debate here is way off the mark:
The article is being deliberately misleading, and the US response doesn't
help its allies at all.
First, the NYT/BBC confuses an Air Defense Zone and an Air Defense
Identification Zone. An ADZ implies control of the territory or sea
underneath it, and comes with shoot-down rights if the counterparty does not
comply. An ADIZ is does not obligate other parties to do anything - it
simply obligates the originat... 阅读全帖
N*****2
发帖数: 2318
38
来自主题: Military版 - 习近平温家宝在海外都隐藏资产
A newly-published report by the International Consortium of Investigative
Journalists reveals some 22,000 clients from mainland China and Hong Kong
who are stashing their money away in offshore acounts in the British Virgin
Islands and other locales. The clients include family members of many
preeminent CCP elites, including Xi Jinping and Wen Jiabao.
Many of the holdings are managed by top international banks, including UBS,
Credit Suisse, and Deutsche Bank, which have topnotch reputations for
... 阅读全帖
D**S
发帖数: 24887
39
Gifts of $300 to Homeless Are Reduced to a Lunch
By KIRK SEMPLEJUNE 25, 2014
The Tour of Love and Gratitude luncheon at the Loeb Boathouse in Central
Park took a decisive turn for the worse on Wednesday soon after the 200 or
so guests had finished their filet of beef with horseradish and were just
about to tuck into their seasonal berries in phyllo cups.
The bad news had finally reached the last few tables: Their host, a Chinese
millionaire, would not be handing out any cash.
Only moments before... 阅读全帖
C**********e
发帖数: 23303
40
来自主题: Military版 - 机器学习是怎么回事
你就不知道自己搜一下?
——————————————————————————————————
计算机怎么知道两张图片相似呢?
根据Neal Krawetz博士的解释,原理非常简单易懂。我们可以用一个快速算法,就达到
基本的效果。
这里的关键技术叫做"感知哈希算法"(Perceptual hash algorithm),它的作用是对
每张图片生成一个"指纹"(fingerprint)字符串,然后比较不同图片的指纹。结果越
接近,就说明图片越相似。
下面是一个最简单的实现:
第一步,缩小尺寸。
将图片缩小到8x8的尺寸,总共64个像素。这一步的作用是去除图片的细节,只保留结
构、明暗等基本信息,摒弃不同尺寸、比例带来的图片差异。
第二步,简化色彩。
将缩小后的图片,转为64级灰度。也就是说,所有像素点总共只有64种颜色。
第三步,计算平均值。
计算所有64个像素的灰度平均值。
第四步,比较像素的灰度。
将每个像素的灰度,与平均值进行比较。大于或等于平均值,记为1;小于平均值,记
为0。
第五步,计算哈希值。
将上一步的比较结果,组合在一起,就构成了一个64位的整数,这就是这张图片的指纹
。... 阅读全帖
b********n
发帖数: 38600
41
熊猫第一,炒锅第二
The crowdsourced review company provided us with geolocated names of close
to 40,000 Chnese restaurants. And after sifting through the data, some
interesting patterns became clear.
The single most frequent word appearing in Yelp’s list of Chinese
restaurants is, perhaps unsurprisingly, “Restaurant.” “China” and “
Chinese” together appear in the names of roughly 15,000 restaurants in the
database, or over one third of all restaurants.
“Express” is the next-most popular word, showing up ... 阅读全帖
M******a
发帖数: 6723
42
http://cn.nytstyle.com/culture/20160629/solving-a-mistery-inside-a-cookie/dual/
Solving a Riddle Wrapped in a Mystery Inside a Cookie
By JENNIFER 8. LEEJune 29, 2016
美食JENNIFER 8. LEE 2016年6月29日
Ko Sasaki for The New York Times
Some 3 billion fortune cookies are made each year, almost all in the United
States. But the crisp cookies wrapped around enigmatic sayings have spread
around the world. They are served in Chinese restaurants in Britain, Mexico,
Italy, France and elsewhere. In India, they ... 阅读全帖

发帖数: 1
43
http://www.economist.com/news/christmas-specials/21712060-border-between-two-countries-shows-how-they-have-grown-apart-politics-and-pity
Postcard from Dandong
Politics and pity on the border of China and North Korea
The border between the two countries shows how they have grown apart
“LOOK! There’s one!” shouts a member of the tour party as 40 people raise
their phones to take a picture: “Three of them, up there on the mountain!
” Commentary from another tour-boat blares out over the Yalu river:... 阅读全帖
S*********g
发帖数: 24893
44
【 以下文字转载自 Stock 讨论区 】
发信人: StephenKing (金博士), 信区: Stock
标 题: 市面上流通1358种电子货币,包括ByteCoin
发信站: BBS 未名空间站 (Fri Dec 15 00:59:47 2017, 美东)
# Name Symbol Market Cap Price Circulating Supply Volume (
24h) % 1h % 24h % 7d
1
Bitcoin BTC $290,617,804,480 $17,358.40 16,742,200 $15,
825,500,000 -0.36% 5.62% 3.15%
2
Ethereum ETH $63,827,563,522 $662.47 96,348,146 $3,723,
910,000 -0.48% -10.50% 52.62%
3
Bitc... 阅读全帖
W*****B
发帖数: 4796
45
来自主题: Military版 - ordinary”
China calls off controversial hunt for Chinese ‘warrior gene’ in children
Poor results rather than ethical issues stopped studies focused on blood
samples from violent juveniles, source says
Sunday, 17 December 2017, 4:48:PM
The hunt started more than a decade ago with a pool of money, central
government backing and the goal of tracking down a Chinese variant of the so
-called warrior gene.
Similar research was already under way in the United States, Europe and
Japan – studies that suggested cer... 阅读全帖
r*****g
发帖数: 9999
46
来自主题: Military版 - 直接跟五角大楼合作
直接跟五角大楼合作,比华为赤裸裸不知道多少条街。
https://arstechnica.com/gadgets/2018/03/google-helping-the-pentagon-sift-
through-millions-of-hours-of-drone-footage/
W*****B
发帖数: 4796
47
来自主题: Military版 - 这次是真的铁证如山了
这次是真的铁证如山了,想抵赖也赖不掉了。是真的!虽然之前西方媒体也是这样说的
好多次了。不知道这次是不是也是跟以前一样。
Vault protects smuggled photos documenting alleged Syrian war crimes
In a drab office building in a European capital amid the sound of humming
document scanners, a team of human rights lawyers is hard at work processing
thousands of documents that they say link the Syrian government to war
crimes.
The papers point to an unmistakable conclusion, according to those leading
the effort: The government of Syria's President Bashar al-Assad h... 阅读全帖
M*******n
发帖数: 10087
48
The existence of men has long puzzled scientists. Sexual reproduction is
inefficient and costly, yet the majority of multicellular species opt for
this method to keep their genes going. So why do men exist? Researchers from
the University of East Anglia (UAE) believe they may have finally cracked
it, suggesting that the evolutionary force known as ‘sexual selection’
plays a key role in improving population health and protecting us against
extinction.
“男人为什么会存在”长期以来一直困扰着科学家们。性繁殖效率低、成本高,但大多
数多细胞物种... 阅读全帖
W*****B
发帖数: 4796
49
已经有145名当年摔跤运动员和助理等指证队医性侵猥亵他们了。
该队医长期反复偷窥队员们更衣洗澡。并在为他们体检或治疗时抚摸玩弄他们的生殖器
。还对某些队员实施手淫直至射精。
Ohio State investigators probing Dr. Strauss zero in on 'sexually
exploitative' training facility
More than a dozen former Ohio State wrestlers said that voyeurs regularly
showed up at Larkins Hall, their training facility, to watch them shower.
by Corky Siemaszko / Aug.30.2018 / 2:00 PM ET
Richard Strauss
The 1978 employment application information for Dr. Richard Strauss. Ohio
State University via AP
Investi... 阅读全帖
b********n
发帖数: 38600
50
“The border has become a rights-free zone for Americans who have to travel,
” Senator Ron Wyden said in a statement to TAC. “The founders never could
have imagined that the government would be able to sift through your entire
digital life, from pictures to emails and even where you’ve been, just
because you decide to take a vacation or travel for work.”
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