bag-of-feature,是一种图像分类方法,具体翻译成中文是什么啊？-作

最初的Bag of words，也叫做“词袋”，在信息检索中，Bag of words model假定对于一个文本，忽略其词序和语法，句法，将其仅仅看做是一个词集合，或者说是词的一个组合，文本中每个词的出现都是独立的，不依赖于其他词 是否出现，或者说当这篇文章的作者在任意一个位置选择一个词汇都不受前面句子的影响而独立选择的.现在Computer Vision中的Bag of words来表示图像的特征描述也是很流行的.大体思想是这样的，假设有5类图像，每一类中有10幅图像，这样首先对每一幅图像划分成patch（可以是 刚性分割也可以是像SIFT基于关键点检测的），这样，每一个图像就由很多个patch表示，每一个patch用一个特征向量来表示，咱就假设用Sift 表示的，一幅图像可能会有成百上千个patch，每一个patch特征向量的维数128.接下来就要进行构建Bag of words模型了，假设Dictionary词典的Size为100，即有100个词.那么咱们可以用K-means算法对所有的patch进行聚 类，k=100，我们知道，等k-means收敛时，我们也得到了每一个cluster最后的质心，那么这100个质心（维数128）就是词典里德100 个词了，词典构建完毕.词典构建完了怎么用呢？是这样的，先初始化一个100个bin的初始值为0的直方图h.每一幅图像不是有很多patch么？我们就再次 计算这些patch和和每一个质心的距离，看看每一个patch离哪一个质心最近，那么直方图h中相对应的bin就加1，然后计算完这幅图像所有的 patches之后，就得到了一个bin=100的直方图，然后进行归一化，用这个100维德向量来表示这幅图像.对所有图像计算完成之后，就可以进行分 类聚类训练预测之类的了.。

小学英语单词分为几类,要全

一、学习用品（school things）pen钢笔 pencil铅笔 pencil-case铅笔盒 ruler尺子 book 书 bag 包post card明信片 newspaper报纸 schoolbag书包 eraser橡皮 crayon蜡笔 sharpener卷笔刀 story-book故事书 notebook笔记本 Chinese book语文书 English book英语书 maths book数学书 magazine杂志 newspaper 报纸dictionary词典二、 身体部位（body）foot脚 head头 face脸 hair头发 nose鼻子 mouth嘴 eye眼睛 ear耳朵 arm手臂 hand手 finger手指 leg腿 tail尾巴三、 颜色（colours）red红 blue蓝 yellow黄 green绿 white白 black黑 pink粉红 purple紫 orange橙 brown棕四、 动物（animals）cat猫 dog狗 pig猪 duck鸭 rabbit兔子 horse马 elephant大象 ant蚂蚁 fish鱼bird鸟 snake蛇 mouse鼠 kangaroo袋鼠 monkey猴子 panda熊猫 bear熊 lion狮 tiger老虎 fox狐狸 zebra斑马 deer鹿 giraffe长颈鹿 goose鹅 hen母鸡 turkey火鸡 lamb小羊 sheep绵羊 goat山羊 cow奶牛 shark鲨鱼 seal海豹 五、 人物（people）friend朋友 boy男孩 girl女孩 mother母亲 father父亲 sister姐妹 brother兄弟 uncle叔叔 man男人 woman女人 Mr先生 Miss小姐 lady女士 mom妈妈 dad爸爸 parents父母 grandma/grandmother（外）祖母 grandpa/grandfather（外）祖父 aunt阿姨 cousin堂表兄弟姐妹 son儿子 baby婴儿 kid小孩 classmate同学 queen女王 visitor参观者 neighbour邻居 principal校长 pen pal笔友 tourist旅行者 people人物 robot机器人六、 职业（job）teacher教师 student学生 doctor医生 nurse护士 driver司机 farmer农民 singer歌唱家 writer作家 actor男演员 actress女演员 artist画家 TV reporter电视台记者 engineer工程师 policeman（男）警察 salesperson销售员 cleaner清洁工 baseball player棒球运动员 assistant售货员 七、 食品（food and drink:）breakfast早餐 lunch中餐 dinner晚餐 egg鸡蛋 rice米饭 cake蛋糕 bread面包 jam果酱 biscuit饼干 sausage香肠 sandwich三明治 dumplings 饺子 fish and chips炸鱼薯条 meat肉 chicken鸡肉 mutton羊肉 beef牛肉 pork猪肉 fish鱼 hamburger汉堡 hot dog热狗 noodles面条 soup汤 salad沙拉 milk牛奶 water水 ice-cream冰淇淋 cola可乐 juice果汁 tea茶 coffee咖啡 fruit 水果 apple苹果 banana香蕉 pear梨 orange橙 watermelon西瓜 grape葡萄 cherry 樱桃 lemon 柠檬 mango 芒果 coconut椰子 peach桃 strawberry草莓 vegetable 蔬菜eggplant茄子 green beans青豆 tomato西红柿 potato土豆 cucumber黄瓜 onion洋葱 carrot胡萝卜 cabbage卷心菜 pumpkin 南瓜 sweet potato红薯 pea 豌豆八、 衣服（clothes）jacket夹克衫 shirt衬衫 T-shirt T恤衫 skirt短裙子 dress连衣裙 jeans牛仔裤pants/trousers裤子 socks袜子 shoes鞋子 sweater毛衣 coat上衣 raincoat雨衣 shorts短裤 sandals凉鞋 boots靴子 hat帽子 cap鸭舌帽 sunglasses太阳镜 tie领带 scarf围巾 gloves手套九、交通工具（vehicles） bike自行车 bus公共汽车 train火车水 boat小船 ship轮船 yacht快艇 car小汽车 taxi出租车 jeep吉普车 van小货车 plane飞机 subway地铁 motor cycle摩托车十、杂物（other things） window窗户door门 desk课桌chair椅子bed床computer 计算机board写字板 fan风扇 light灯teacher's desk讲台 picture图画；photo照片 wall墙壁 floor地板 mirror镜子 football足球 present/gift礼物 walkman随身听 lamp台灯 phone电话 sofa沙发 shelf书架 fridge冰箱 table桌子 TV电视 air-conditioner空调 key钥匙 lock锁 plate盘子 knife刀 fork叉 spoon勺子 chopsticks筷子 pot锅 toy玩具 doll洋娃娃 ball球 balloon气球 kite风筝 jigsaw puzzle拼图游戏 box盒子 umbrella伞 zipper拉链 violin小提琴 yo-yo溜溜 nest鸟窝 hole洞 toothbrush牙刷 menu菜单 e-card电子卡片 e-mail电子邮件 traffic light交通灯 money钱 medicine药十一、地点（locations） home家 room房间 bedroom卧室 bathroom卫生间 living room起居室/客厅 kitchen厨房 classroom教室 school学校 park公园library图书馆 post office邮政局 hospital医院 cinema电影院 bookstore书店 farm农场 zoo动物园 garden花园 playground操场 canteen餐厅 teacher's office教师办公室 gym体育馆 washroom盥洗室 art room美术室 computer room电脑房 music room音乐教室 TV room电视房 flat 公寓 company公司 factory 工厂pet shop 宠物店science museum科学博物馆 the Great Wall 长城 supermarket超市 bank 银行 country乡村 village村庄 city城市十二、气象（weather） cold 冷的hot 热的 warm温暖的 cool 凉爽的 snowy下雪的 sunny晴朗的 rainy下雨的 windy刮风的 cloudy多云的 weather report天气预报十三、景物（nature） river河流 lake湖泊 stream小溪 forest森林 path小路 road马路 house房子bridge桥 building建筑物 rain雨 cloud 云 sun太阳 mountain大山 sky天空 rainbow彩虹 wind风 air空气十四、植物（plants） flower 花 grass草 tree 树 seed 种子plant 植物 rose玫瑰 leaf 树叶十五、星期（week） Monday Tuesday Wednesday Thursday Friday Saturday Sunday weekend周末十六、月份（months） January February March April M。

初二英语 关于“日常用品”词汇归类

cash desk, cashier's desk 收银处price tag 标价签prices are fixed, fixed prices 有定价discount 打折扣change 零钱to keep the bill 留发票to wrap up 包装free of charge 不收费to deliver 送be al sold out, out of stock 售空shop assistant, salesman 售货员saleswoman 女售货员glassware counter 玻璃器皿部enamel ware 搪瓷器皿haberdashery 男子服饰用品confectionery 糖果糕点cosmetics 化妆用品stationery 文具fabrics 纺织品dry goods 服装ready-made clothes, off-the-peg, ready-to-wear 成衣，现成服装men's wear 男服women's wear 女服underwear 内衣裤sports goods, athletic equipment 体育用品sundries 零星小物toilet articles 盥洗用品towel 毛巾handkerchief 手帕toilet soap 香皂shampoo 洗发香波soap 肥皂laundry soap 洗衣皂soap powder 肥皂粉soap flakes 皂片medicated soap 药皂detergent 洗衣粉cleanser 去污粉tooth paste 牙膏tooth brush 牙刷toilet mirror 梳妆镜hair brush 发刷hair vaseline 发蜡cosmetics 化妆品lipstic 口红， 唇膏face powder 粉compact 粉盒powder puff 粉扑cold cream 香脂vanishing cream 雪花膏perfume, scent 香水perfume spray 香水喷子coat hanger 挂衣架clothes-peg, clothes pin 晒衣夹string bag, net bag 网兜 thermos bottle 热水瓶cap, cork 热水瓶瓶盖travellers' water bottle, water flask, canteen 旅行水壶lunch box, canteen 饭盒thread 线needle 针button 钮扣zipper 拉链key-ring 钥匙圈torch, flashlight 手电bulb 灯泡battery 电池lock 锁watch, wrist watch 表， 手表watch band 表带watch chain 表链clock 钟alarm clock 闹钟electric clock 电钟umbrella 雨伞parasol, sun umbrella 阳伞knapsack 背包handbag 女手提包briefcase, portfolio 公事包travelling bag 旅行包 suitcase 手提箱trunk 大衣箱magnifying glass 放大镜binoculares 望远镜hot-water bottle 热水袋smoking set 烟具lighter 打火机jewelry, jewels 首饰， 珠宝jewel case 首饰盒antique, curio 古玩ornaments 装饰品ring, finger ring 戒指signet ring 印章戒指necklace 项链brooch 胸针pendant 坠子bracelet 镯子chain bracelet 手链ear ring 耳环trinket 小饰物safety-pin 别针cuff-link 袖扣diamond 钻石gold jeweleries 金饰silver jeweleries 银饰pearl 珍珠imitation 仿制品genuine 真的fake 假的baby's cot, crib 婴儿床cradle 摇篮diaper, napkin 尿布feeding bottle, feeder 奶瓶teat, nipple 橡皮奶嘴dummy, comforter 假奶嘴perambulator 儿童车go-cart, walker, babywalker 儿童学步车rocking-horse 摇马scooter 踏板车child's tricycle 儿童三轮车razor 剃刀safety razor 保险剃须刀electric razor 电剃刀razor blade 刀片shaving brush 剃须刷shaving cream 剃须膏comb 梳子hair-brush 发刷hair-net 发网hair pin 发夹hair oil, brilliantine 发油hair lotion 生发水pomade 发膏hair drier 吹风机hair-curler 卷发夹electric clippers, electric shears 电推子nail scissors 指甲剪nail clipper 指甲夹nail file 指甲锉nail varnish, nail polish 指甲油。

初一下册单词归类：颜色类,食物类,饮料类,职业类,交通工具

冠词：用在名词前帮助说明所指的人或事物a[an} the 副词：修饰动词，形容词或其他副词.not too here ofter home door yes no only where when what 介词：表示名词，代词等和句中的其他词的关系.in on of to under at next 连词：用来连接词与词，短语与短语，句与句.and or but 感叹词：表示说话时的情感oh hello hi OK well 名词：表示人或事物的名称boy pencil book bag phone backpack card pen ruler eraser sase dictionary pencil sharpenar baseball watch name clock computer game key notbook ring school sister friend picture table bed sofa chair dessert vegetable dresser bookcase plant video tape thing hat bat soccer ball tennis shoe skirt price banana day class egg clothes music year trip movie age party doller listice food tomato 动词：表示动作或状态.look thank do spell excuse need let play want go join work sing love ask write tell start draw has have think swim lister dance speak learn buy 形容词：用以修饰名词，表示人或事物的特征.nice frist last this that thoes dear some good broing fun difficult interesting redlxing great every healthy big small short long welcome sorry happy old scary funny sad exciting new best busy tired strict。

英语中“bag"这个单词是什么意思

1 N-COUNT （纸质或塑料）袋 A bag is a container made of thin paper or plastic, for example one that is used in shops to put things in that a customer has bought. 语法信息A bag of things is the amount of things contained in a bag.2N-COUNT 拎袋；旅行袋 A bag is a strong container with one or two handles, used to carry things in.She left the hotel carrying a shopping bag.她提着一个购物袋离开了酒店。

A bag of things is the amount of things contained in a bag.3N-COUNT 同handbag A bag is the same as a handbag . →see usage note at: baggage4N-PLURAL 眼袋 If you have bags under your eyes, you have folds of skin there, usually because you have not had enough sleep.5QUANT 大量；很多 If you say there is bags of something, you mean that there is a large amount of it. If you say that there are bags of things, you mean that there are a large number of them. 语法信息。a hotel with bags of character.很有特色的酒店6N-COUNT 老娘们；丑老太婆；蠢妇 If someone calls a woman an old bag or a stupid bag, they are insulting her. 语法信息7VERB 抢先占有 If you bag something that a lot of people want, you get it for yourself before anyone else can get it. 语法信息The smart ones will have already bagged their seats by placing cards on them.聪明人早已在座位上放一张卡片占住了位子。

8See also: bum bag;carrier bag;mixed bag;shoulder-bag;sleeping bag;tea bag9PHRASE 囊中之物；稳操胜券；十拿九稳 If you say that something is in the bag, you mean that you are certain that you will get it or achieve it. 语法信息'I'll get the Republican nomination,' he assured me. 'It's in the bag.'“我会得到共和党提名的，”他向我保证，“这是十拿九稳的事。”10PHRASE 背别人甩掉的包袱；背黑锅 If you are left holding the bag, you are put in a situation where you are responsible for something, often in an unfair way because other people fail or refuse to take responsibility for it. 语法信息I don't want to be left holding the bag if something goes wrong.如果出了什么问题，我可不想替人背黑锅。

in BRIT, use 英国英语用 be left holding the baby11PHRASE 收拾行李；打点行装 If you pack your bags, you leave a place where you have been staying or living. 语法信息Police arrived at his hotel and ordered him to pack his bags.警察来到他的酒店，命令他收拾行李走人。

英语单词分类

你说的是这个吧？ ★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★初中英语词组总结 1 (see 、hear 、notice 、find 、feel 、listen to 、 look at （感官动词）+do eg:I like watching monkeys jump 2 （比较级 and 比较级） 表示越来越怎么样 3 a piece of cake =easy 小菜一碟（容易） 4 agree with sb 赞成某人 5 all kinds of 各种各样 a kind of 一样 6 all over the world = the whole world 整个 世界 7 along with同……一道，伴随…… eg : I will go along with you我将和你一起去 the students planted trees along with their teachers 学生同老师们一起种树 8 As soon as 一怎么样就怎么样 9 as you can see 你是知道的 10 ask for ……求助 向…要…（直接接想要的东西） eg : ask you for my book 11 ask sb for sth 向某人什么 12 ask sb to do sth 询问某人某事 ask sb not to do 叫某人不要做某事 13 at the age of 在……岁时 eg:I am sixteen I am at the age of sixteen 14 at the beginning of …… ……的起初；……的开始 15 at the end of +地点/+时间 最后；尽头；末尾 eg : At the end of the day 16 at this time of year 在每年的这个时候 17 be /feel confident of sth /that clause +从句 感觉/对什么有信心，自信 eg : I am / feel confident of my spoken English I feel that I can pass the test 18 be + doing 表：1 现在进行时 2 将来时 19 be able to (+ v 原) = can (+ v 原) 能够…… eg : She is able to sing She can sing 20 be able to do sth 能够干什么 eg :she is able to sing 21 be afraid to do (of sth 恐惧，害怕…… eg : I'm afraed to go out at night I'm afraid of dog 22 be allowed to do 被允许做什么 eg: I'm allowed to watch TV 我被允许看电视 I should be allowed to watch TV 我应该被允许看电视 23 be angry with sb 生某人的气 eg : Don't be angry with me 24 be angry with(at) sb for doing sth 为什么而生某人的气 25 be as…原级…as 和什么一样 eg : She is as tall as me 她和我一样高 26 be ashamed to 27 be away from 远离 28 be away from 从……离开 29 be bad for 对什么有害 eg : Reading books in the sun is bad for your eyes 在太阳下看书对你的眼睛不好 30 be born 出生于 31 be busy doing sth 忙于做什么事 be busy with sth 忙于…… 32 be careful 当心；小心 33 be different from…… 和什么不一样 210 on time 准时 in time 及时 211 one day =some day =someday 一天，有一天 212 one of +可数名词的复数形式 213 one to another 一个到另一个 214 over and over agin 一遍又一遍的 eg : He cleaned the floor over and over agin 215 part-time job 兼职工作 fall-time job 全职工作 216 pay for… 付……钱 pay the bill 开钱 ，付钱 217 please +do 218 please help yourself 219 pleased with sb 220 pool into = pore into 221 practice +doing 练习做某事 222 prefer sth to sth 相对……更喜欢…… eg : I prefer physics to chemisty 在物理和化学中，我更喜欢物理 prefer doing to sth 更喜欢去做…不愿意去做… eg: He prefers riding a bike to diving 他更喜欢骑自行车，不开小车 prefer to do sth rather than do sth 宁愿做…也不愿 eg: My unde prefers to buy a now car rather than repaiv the used one 我叔叔更喜欢买新的车，也不去修旧车 prefer sb not to do sth 更愿意… eg: I prefer her not to come 我不喜欢她不来 223 pretend to do sth 装着去做什么 pretend that 从句 eg : The two cheats pretended to be working very hard 这两个骗子装着努力工作 He pretended that he did not know the answer 他装着不知道答案 224 rather…than 宁可……也不…… eg : I would rather be a doctor than a teacher 我愿肯当医生，也不当老师 He likes dogs rather than cats 他喜欢狗，不喜欢猫 225 regard…as 把……当作…… eg: Please give my best regards to your family 请带我向你的家人我最好的问候 I regard you as my friend 我把你当作我的朋友 He shows little regard for others 他不爱关心别人 226 remid sb about sth 提醒某人什么事 remid sb to do sth 提醒某人做某事 eg : he remids me about cooking (he remids me to cook 他提醒我做饭 227 remid sb of sth 使某人想起什么 eg : the pictures remind me of my school days 这照片使我想起了我的学校 the words that (which) the teacher talke to remind me of my mother 228 return sth to sb 还什么东西给某人 229 say to oneself 对自己说 230 say to sb 对某人说 231 sb spend somemoney on sth 花了多少钱在某事上 232 sb spend sometime with sb 花了多少时间陪谁 233 sb spend sometime(in) doing sth 花了多少时间做某事 234 sb with sb +is sb and sb +are 235 see sb do 看见某人做过某事 see sb doing 看见某人正在做某事 236 seem to do/be +adj 显得怎么样 eg : You seem to be tired You seem to be happy 237 send +sb sth 送给某人某物 装不下了，我空间里有这个日志可以看看 http://user.qzone.qq.com/549326530?ptlang=2052。

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