题目内容
（请给出正确答案）
A、K should be at least 10 to remove unwanted statistical fluctuations.
B、Pick 10 to 20 appears to work well in general.
C、Pick the upper bound value for k as the maximum of “close by” objects that can potentially be global outliers.
D、Pick the upper bound value for k as the maximum of “close by” objects that can potentially be local outliers.
安装简答题APP，拍照搜题省时又省心！
更多“How to pick the right k by a h…”相关的问题
2. As recently as the 1700s, people still believed that the planet Saturn was at the farthest extent of the solar system. That there might be other planet wasn&39;t even a respectable idea.
3. In 1781 a self-taught astronomer, William Herschel, was "sweeping the skies" with his telescope. By March, he had reached the section including the constellation Gemini, and he spotted an object that appeared as a disk rather than a glowing star. Because it moved slightly from week to week, Herschel thought it was a comet. After a few mouths, however, he decided the orbit was circular&39;" and came to the shocking conclusion that it wasn&39;t a comet, but an unknown planet.
4. People were astonished. No one since ancient times had anyone named a planet. Herschel felt that is should be called "Georgium Sirius" (George&39;s Star) after George Ⅲ, the king of England, some wanted to name it "Herschel" after its discoverer. But one influential astronomer suggested "Uranus", after the Greek god of the heavens. That made sense, since it was thought to be the limit of the solar system.
5. Could there be another planet affecting Uranus？ A century earlier, Isaac Newton had come up with laws describing the effects that the gravitational forces of planets have on one another. Using Newton&39;s laws, two young scientists, Jean Leverrier and John Couch Adams set out independently in 1840 to find the unknown planet whose gravitational forces might be pulling on Uranus. Both hoped the unknown planet would be where their calculations said they could find it. Adams finished his calculations first, in September 1845. The following August, Leverrier completed his.
6. Leverrier traveled to the Berlin Observatory in Germany, and the young assistant mana get, Johann Gottfried Galle, agreed to help search for the planet. That was September 23, 1846. That night, Galle looked through the telescope, calling out stars and their positions while a young student astronomer, Heinrich Louis d&39; Arrest, looked at a star chart, searching for the stars Galle described. Finally Galle called out an eighth-magnitude star that d&39; Arrest couldn&39;t locate on the charts. They had found the unknown planet! It had taken two years of research—but only a half hour at the telescope. The honor of the discovery belongs to both Adams and Leverrier, who had essentially discovered the new planet with just a pen and a new set of mathematical laws. The greenish planet was named after Neptune, god of the sea.
Paragraph 3 ______
A. The Planet Uranus Is Named After Greek GodB. The planets concept hasn&39;t always been acceptedC. Sometimes It Takes a Little Bit of Maths And Logic to Matte DiscoveriesD. The Discovery of Uranus Was Made By a Self-taught AstronomerE. You need to be a trained astronomer to discover new things in the skyF. It Was Galle Who First Observed the Planet Nemune
Paragraph 4 ______
A. The Planet Uranus Is Named After Greek GodB. The planets concept hasn&39;t always been acceptedC. Sometimes It Takes a Little Bit of Maths And Logic to Matte DiscoveriesD. The Discovery of Uranus Was Made By a Self-taught AstronomerE. You need to be a trained astronomer to discover new things in the skyF. It Was Galle Who First Observed the Planet Nemune
Paragraph 5 ______
A. The Planet Uranus Is Named After Greek GodB. The planets concept hasn&39;t always been acceptedC. Sometimes It Takes a Little Bit of Maths And Logic to Matte DiscoveriesD. The Discovery of Uranus Was Made By a Self-taught AstronomerE. You need to be a trained astronomer to discover new things in the skyF. It Was Galle Who First Observed the Planet Nemune
Paragraph 6 ______
A. The Planet Uranus Is Named After Greek GodB. The planets concept hasn&39;t always been acceptedC. Sometimes It Takes a Little Bit of Maths And Logic to Matte DiscoveriesD. The Discovery of Uranus Was Made By a Self-taught AstronomerE. You need to be a trained astronomer to discover new things in the skyF. It Was Galle Who First Observed the Planet Nemune
The planet Uranus was discovered______.
A. after each of these planetsB. by chanceC. after a mere mortalD. new objects in the skyE. really help to make discoveriesF. the tug of another planet
The planet Uranus was almost named ________.
A. after each of these planetsB. by chanceC. after a mere mortalD. new objects in the skyE. really help to make discoveriesF. the tug of another planet
Besides maths and observation, a good telescope can______.
A. after each of these planetsB. by chanceC. after a mere mortalD. new objects in the skyE. really help to make discoveriesF. the tug of another planet
The effect of a planet&39;s orbit may be due to______.
A. after each of these planetsB. by chanceC. after a mere mortalD. new objects in the skyE. really help to make discoveriesF. the tug of another planet
Knitting
My mother knew how to knit(编织), but she never taught me. She assumed, as did manywomen of her generation, that knitting was no longer a skill worth passing down from mother todaughter. A combination of feminism (女权主义) and consumerism (消费主义 ) made manywomen feel that such homely accomplishments were now out of date. My Grandmother still knitted, though, and every Christmas she made a pair of socks for my brother and me, of red wool.
They were the ones we wore under our ice skates (冰鞋), when it was really important to havewarm feet.
Knitting is a nervous habit that happens to be productive. It helped me quit smoking by giv-ing my hands something else to do 。it is wonderful for depression because no matter what else
happens, you are creating something beautiful. Time spent in front of the television or just sittingis no longer time wasted.
I love breathing life into the patterns. It&39;s true magic, finding a neglected, dog-eared oldbook with the perfect snowflake design, buying the same Germantown wool my grandmother used,in the exact blue to match my daughter&39;s eyes, taking it on the train with me every day for twomonths, working enthusiastically to get it done by Christmas, staying up late after the stockingsare filled to sew in the sleeves and weave in the ends.
Knitting has taught me patience. I know that if I just keep going, even if it takes months,there will be a reward. When I make a mistake, I know that anger will not fix it, that I just haveto go back and take out the stitches(针脚) between and start over again.
People often ask if I would do it for money, and the answer is always a definite no. In thefirst place, you could not pay me enough for the hours I put into a sweater. But more important,this is an activity I keep separate from such considerations. I knit it to cover my children and oth-er people I love in warmth and color. I knit to give them something earthly that money could neverbuy.
Knitting gives my life an alternative rhythm to the daily deadline. By day I can write aboutNorthern Ireland or the New York City Police Department and get paid for it, but on the trainhome, surrounded by people with laptops, I stage my little rebellion. I take out my old knittingbag and join the centuries of women who have knitted for love.
Why did many women feel that knitting was out of date？ 查看材料
A.Because their mothers didn"t teach them.
B.Because they were influenced by feminism and consumerism.
C.Because they were feminists.
D.Because t.hey were eonsumerists.
A、schedule
B、outline
C、structure
D、responsibility
A、Traffic incident detection
B、Credit card fraud detection
C、Network intrusion detection
D、Medical analysis
A、Statistics-based approach is simple and fast but difficult to deal with periodicity data and categorical data.
B、The efficiency of distance-based approach is low for the great data set in high dimensional space.
C、Distance-based approach cannot be used in multidimensional data set.
D、Density-based approach spends low cost on searching neighborhood.
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
简答题
微信搜一搜
简答题
如搜索结果不匹配，请 
