1、feature selection

feature selection發(fā)音

英：　　美：

feature selection中文意思翻譯

常用釋義：特征選擇：在機器學(xué)習和數據挖掘中

[自]特征選擇；特鍘擇

feature selection雙語(yǔ)使用場(chǎng)景

1、Feature dimension reduction can be divided into two categories: feature extraction and feature selection.───特征降維可以分為兩類(lèi)：特征抽取和特征提取。

2、In the Feature Selection screen, select the following.───在Feature Selection界面中，選擇以下項。

3、And, many researches were concentrated on the point of feature selection and classification algorithm.───其中，諸多研究集中在特征選取和分類(lèi)算法上。

4、However, the result of the feature selection in unsupervised learning is not as satisfactory as that in supervised learning.───但是，無(wú)指導學(xué)習環(huán)境下的屬性選擇往往無(wú)法取得像有指導學(xué)習環(huán)境下那樣令人滿(mǎn)意的結果。

5、is also important to think about feature selection for training the model.───在訓練模型時(shí)考慮使用特征選擇也是很重要的。

6、So, it is necessary to study feature selection algorithms.───所以，對特征選擇算法的研究是十分必要的。

7、It used the word as the unit for feature selection and add the pretreatment in text sentiment analysis process.───提出了以詞為單位進(jìn)行特征的選取，并在文本的情感分析中加入了預處理過(guò)程。

8、Such comparative results confirm that the classification performance can be improved by feature selection and representation.───由此證明了特征的選擇和表示方法對提高分類(lèi)性能的有效性。

9、A facial expression recognition system contains face detection, face feature extraction, feature selection and expression classification.───表情識別系統包括人臉檢測、人臉特征提取、特征選擇以及表情分類(lèi)等幾部分。

feature selection相似詞語(yǔ)短語(yǔ)

1、feature story───n.深度報道；n.新聞特寫(xiě)；專(zhuān)題報道

2、apostatic selection───背道選擇

3、poinciana feature───波因西亞特征

4、feature───vi.起重要作用；vt.特寫(xiě)；以…為特色；由…主演；n.特色，特征；容貌；特寫(xiě)或專(zhuān)題節目

5、selection 2020───選擇2020

6、jury selection───陪審員選任制度；陪審團選拔；挑選陪審員

7、feature feature───特征

8、selection───n.選擇，挑選；選集；精選品

9、discretional selection───自由選擇

2、幫忙翻譯一段IPHONE廣告

正好我在練習口譯，就順便把你這當磨刀石了~

時(shí)間軸提供不了，沒(méi)那么多空。。

英語(yǔ)原文都是我聽(tīng)下來(lái)的，然后幫你翻成中文。

-Hi, I'm Nelson. I work at one of the apple retail store.

嗨，我叫尼爾森，我在蘋(píng)果的一家零售店里工作。

-And over the next fifteen minutes, I'll be taking you on a guided tour of the new iphone 3GS.

在接下來(lái)的15分鐘內，我將帶領(lǐng)你熟悉新的iphone 3GS。

-With this unmatch easy views, iphone has redefined what's possible on a mobile phone. And now, the phone that has changed phones forever, just got even better.

借力于這無(wú)與倫比簡(jiǎn)單的高科技，iphone重新定義了在手機上的一切可能?，F在，這改變了電話(huà)歷史的電話(huà)，剛剛升級。

-iphone 3GS has owned new high-quality autofocus camera that records video.

iphone 3GS 擁有了一個(gè)新的高質(zhì)量可錄影的攝像頭。

-Hands-free Voice Control, and a built-in digital compass.

加上解放雙手的聲控軟件，以及內置的數碼指南針。

-Plus, new features like 'Cut,Copy&Paste', MMS, Spotlight search and more.

而且還有諸如拷貝剪切粘貼，彩信，Spotlight搜索等的其他功能。

-All inside a simple, built-in design that feels great in your hand.

全都包含在一個(gè)小巧內置的精致設計中，讓你欲罷不能。

-Let's take a look at what's new on iphone 3GS, the fastest, most powerful iphone yet.

讓我們來(lái)看看究竟這至今最快最強大的iphone 3gs有什么新功能。

[Scene 1]

-At the heart of the every iphone, this is a revolutionary mobile phone. A great wide-screen ipod, and a breakthrough internet device.

iphone是一款革命性的手持設備。它既是大屏幕的ipod，又是突破性的互聯(lián)網(wǎng)移動(dòng)終端。

-But what sets iphone 3GS apart is its improved performance. Let me show you.

但是最終使3GS與眾不同的，是它那革新的表現。讓我來(lái)做個(gè)示范。

-The first thing you will notice is how fast you can run your application. Return to the homescreen, and then launch another one. Or jump between apps using a better link.

你馬上就能注意到運行應用程序時(shí)有多快?；氐街鹘缑?，然后運行另外一個(gè)程序，或者使用便捷的鏈接來(lái)切換程序。

-With iphone 3GS webpages can run faster, too.

有了iphone 3GS，網(wǎng)頁(yè)瀏覽也會(huì )變得更加迅速。

-Better performance and improved graphics also means a better gaming experience. Game's played as great as it looks on iphone 3GS.

更良的性能與改良的畫(huà)質(zhì)亦能帶來(lái)更佳的游戲體驗。就如同演示一般，玩游戲就是像你看到的這樣棒。

-Whether you using coverflow to browse through your entire music collection, or using one of the great apps from the apps store, whatever you're doing, your iphone is more respondent than ever.

不論你是在使用coverflow功能來(lái)瀏覽你整個(gè)的音樂(lè )資料庫，抑或是使用apps store來(lái)下載你喜愛(ài)的應用程序，不管你在做什么，都能發(fā)現你的iphone響應得比以前任何一代要快。

-And iphone 3GS isn't just faster, your battery will last longer too.

iphone 3GS不僅僅只是更快了而已，在電池續航時(shí)間上也有很大改進(jìn)。

-So you can watch more video, listen to more music, keep using your favorite apps, and surf the internet even longer.

這樣的話(huà)你能看更多的視頻，挺更久的音樂(lè )，不間斷地使用你最喜歡的應用，亦能使上網(wǎng)沖浪時(shí)間持續更久。

[Scene 2] Camera 相機

-Taking pictures on the iphone has always been easy. But now, with the high-quality, 3 megapixels, autofocus camera, iphone 3GS can take pictures better than ever.

用iphone拍照總是很便捷。但是現在，有了高質(zhì)量，300萬(wàn)像素，自動(dòng)變焦的攝像頭后，iphone 3gs如虎添翼。

-I'm gonna go inside and show you how it works.

我將為你演示如何拍照。

[Outside] 在外景

-Tap camera to get started. The camera automatically focuses in the subject in the center of the display. Just tap here to take a picture.

先點(diǎn)擊相機圖標，相機程序自動(dòng)地將焦點(diǎn)對在畫(huà)面的中心，你所要做的只是點(diǎn)擊相機按鈕即可完成拍照。

-To focus on something that isn't in the center of the frame, just touch it. iphone instantly shift the focus on the new subject, and adjust the exposure and white balance to take the best picture.

若想要聚焦不在畫(huà)面中心的某物，只需點(diǎn)擊它即可。iphone將馬上變焦至此物體，自動(dòng)調整曝光和白平衡來(lái)使照片獲得最佳效果。

-For close-up shots, iphone will use its automatic macro feature to capture the finest detail.

如果你正拍攝近距離照片，iphone將會(huì )自動(dòng)捕捉最佳細節。

-This button can shows me a preview of the last picture I took.

這個(gè)按鈕上顯示了上一張你拍下的圖片。

-From here I can quickly delete, share, or sync it to one of my contacts.

這幾個(gè)按鈕能使我快速地做出刪除、分享、或同步至我的某個(gè)聯(lián)系人的操作。

-Or I can navigate to the camera roll, to see all of the photos and videos I've taken recently.

你能到“膠卷”里找到最近所有拍攝的相片和影片。

[Scene 3] Video 攝影

-In addition to all of the camera improvement, iphone 3GS now shoots sharp, hi-quality video with audio. And you can even edit video right on your iphone.

除了照相功能的突飛猛進(jìn)，iphone 3GS現在更可以拍攝畫(huà)質(zhì)清晰銳麗的有聲視頻了！你甚至可以在你的iphone上對視頻作簡(jiǎn)單編輯。

-Just switch to the video camera and you can choose to shoot either portrait or landscape.

通過(guò)顯而易見(jiàn)的滑鈕你可以切換拍照和拍視頻模式。

-To start recording, just tap here.

要開(kāi)始攝影，只需點(diǎn)擊這兒。

-When you're done, tap again to stop recording. And your video saved in the camera roll along with other pictures and videos.

拍攝完畢后，再次點(diǎn)擊同一位置的按鈕即可停止。你所拍攝的視頻將會(huì )與其他已拍攝的照片和視頻放在一塊兒。

-Now I'll show you how easy it is to edit and share videos.

現在我將為你演示編輯及分享視頻是多么的簡(jiǎn)便。

-Tap to bring on the on-screen controls.

點(diǎn)擊屏幕激活屏幕控制欄。

-From here, I can drag to select only the video that I want to keep.

選擇你所想要保留下來(lái)的視頻片段，只需拖拉黃色欄即可。

-By holding my finger over a section, it expand for more precise edit. Tap the play to preview my edit.

若一直按住某一段視頻片段，此段視頻將會(huì )在進(jìn)度條上變長(cháng)，以便你能夠做出更加細致的微調。

-And then tapping 'trim', save the changes.

點(diǎn)擊完成按鈕即可完成編輯操作。

-I can share the video with friends by E-mail or MMS, or post it to mobileme or youtube right from here.

通過(guò)電子郵件或彩信，或通過(guò)貼到mobileme服務(wù)或youtube上，你能與你的朋友分享你的視頻，

-Now with iphone 3GS, I've got a great still camera and video camera with you all the time.

現在有了iphone 3GS，如同高級相機與攝影機隨行。

-So it's easier than ever to capture a moment happened in your life, enjoy them anytime, anywhere, and share it with others.

你將能夠更輕易地捕捉并儲存你生活中彌足珍貴的那些時(shí)刻，與別人分享你的快樂(lè )。

[Scene 4]Voice Control 聲音控制

-Making a call on iphone has always been easy as tapping the name or number.

用iphone打電話(huà)一直是異常簡(jiǎn)單的。

-And now, with Voice Control, it's even easier.

現在增加了語(yǔ)音控制后，又更加如虎添翼。

-Because you can dial by name or number with just the sound of your voice, without even look at the screen.

因為現在起，你能夠僅通過(guò)說(shuō)出對方的名字或對方的號碼就能夠進(jìn)行撥打，甚至不需要看著(zhù)屏幕。

-To bring up Voice Control, press and hold the home button, or press the center button on your earphone.

使用聲控功能，按住home按鍵，或按下耳機線(xiàn)控上的中央鍵。

-After the tone, just speak a command.

聽(tīng)到叮咚聲后，便可開(kāi)始說(shuō)出指令。

-'Call Lauren Becker.'

打給Lauren Becker

-'Calling Lauren Becker, mobile.'

正在撥打Lauren Becker的手機

-Voice Control can find anybody in my address book instantly and dial any of their numbers.

聲控程序能找到任何在我聯(lián)絡(luò )簿中的聯(lián)絡(luò )人，快速而準確地撥出號碼。

-I can also dial a phone number like this.

我也可以這樣來(lái)呼叫一個(gè)電話(huà)號碼。

-'Call 4085551234.'

撥打4085551234

-'Calling 4085551234.'

正在撥打4085551234

-And Voice Control isn't just for making calls. I can control the built-in ipod the same way.

聲控不僅能用于撥打電話(huà)，而且還能控制ipod程序。

-'Play songs by Kaiser Cheese.'

播放凱撒基斯的歌。

-'Playing songs by Kaiser Cheese.'

正在播放，凱撒基斯的歌。

-'Play playlist 'favorites'.'

播放播放列表“最喜愛(ài)的歌”

-'Playing playlist 'favorites'.'

正在播放播放列表“最喜愛(ài)的歌”

-I can tell iphone to pause the music, play the extract, turn on shuffle, and I can even ask what's playing right now.

你可以讓iphone暫停，播放精選集，打開(kāi)隨機播放，甚至你還能如同對人一般問(wèn)它現在這首是什么歌。

-'What song is this?'

這是什么歌？

-'Now playing by Wizard.'

正在播放Wizard的《旅行者》。

-If I like a song, I can tell iphone to make a genius playlist based on it.

如果你喜歡這首歌曲，你也可以告訴iphone讓其創(chuàng )建此首歌曲的genius播放列表。

-'Play more song like this.'

多放一些同類(lèi)型的歌。

-'Playing Genius playlist based on by Wizard.'

正在播放由來(lái)自Wizard的《旅行者》所創(chuàng )建的Genius播放列表。

[Scene 5] Compass 指南針

-Another great feature of iphone 3GS is the built-in digital compass.

現在介紹iphone 3gs的另一個(gè)新機能，內置數碼指南針。

-Tapping here launches the beautiful digital compass app.

要運行指南針程序，點(diǎn)擊這里。

-Just like a standard magnetic needle compass, it immediately tells me which way I'm heading and rotate when I change direction.

就如同普通的磁針式指南針，iphone的指南針亦能馬上告訴你你正在向哪個(gè)方向移動(dòng)，并告訴你你何時(shí)改變了方向。

-I can switch using between true north or magnetic north here.

我能在這邊切換真北方向或磁北方向。

-The compass app also use the built-in GPS to display the coordinate of my location.

通過(guò)內置的GPS模塊，指南針程序能告訴你現在位置的確切坐標。

-The digital compass makes map on iphone better too. Because it can orient any maps to the direction I'm facing.

指南針程序還能讓地圖程序增色不少。因為它能為地圖程序做指向并根據行進(jìn)方向旋轉地圖。

-In maps, tapping here once shows my current location. And tapping again rotates the map to the direction I'm heading.

在地圖程序中，單擊此處可顯示你現在所處位置。再次點(diǎn)擊此按鈕便能根據你行進(jìn)的方向來(lái)旋轉地圖，使你看起地圖來(lái)不會(huì )那么的費勁。

-The wit of this beam shows the accuracy of the compass. And with the map orienting the way I'm going, it's much easier to navigate along my route.

中心點(diǎn)周?chē)蝗馐@示了指南針的準確度。有了GPS地圖為你指明方向，一切都變得那么簡(jiǎn)單。

[Scene 6] Cut , Copy & Paste 剪切、復制與粘貼

-iphone's multi-touch technology makes it simple to cut, copy and paste text and photos within apps, or across multiple apps.

iphone的多點(diǎn)觸控技術(shù)使其變得能夠更加簡(jiǎn)便地剪切，復制及粘貼，不論是在一個(gè)應用內，還是跨應用之間的操作。

-Let me show you how it works in E-mail.

讓我在電子郵件中演示一下。

-Here is a message from my friend Emily with some fine idea for our trip next spring.

這是我的朋友Emily給我的關(guān)于我們的春季旅行的郵件。

-I'll copy the ideas I like and paste it into my reply.

我會(huì )拷貝下我認為不錯的建議并將其粘貼至我的回復中。

-I simply tap a word by double tapping and drag to include other words.

就這么簡(jiǎn)單地，雙擊屏幕并由拖拽來(lái)選定范圍。

-Then I'll tap 'Copy'.

然后我單擊“復制”。

-In my reply, I just tap the curser to see the 'select , select all and paste' commands.

在我的回復信件中，我只要在空白處點(diǎn)擊屏幕，出現“選擇、選擇全部或粘貼”的工具欄后，點(diǎn)擊粘貼即可。

-Tap 'Paste' and the text copied appears instantly. It just that easy.

點(diǎn)擊粘貼，大功告成，就這么簡(jiǎn)單。

-'Cut , Copy & Paste' works between the applications, too.

此功能還能跨程序間使用。

-So I can copy some information form this website that'll help us plan our trip, and then paste it into my E-mail reply.

讓我試試從這個(gè)網(wǎng)站拷貝一些有用的信息到我的回復中。

-I'll just tap the whole to make selection, and expand it to include picture, then tap 'Copy'.

先點(diǎn)擊要選定內容，然后拖拽使圖片被包括進(jìn)去，再點(diǎn)擊粘貼。

-Now I can paste it into my E-mail message with all automatically tapped.

只要同樣地再點(diǎn)擊想復制到的空白處，再點(diǎn)擊粘貼便大功告成。

-And if I made a mistake while doing this, no problem, I can just shake to undo.

萬(wàn)一誤操作了怎么辦？不著(zhù)急。只要晃一下iphone即可做撤銷(xiāo)操作。

[Scene 7] MMS 彩信

-The message application on iphone 3GS now supports MMS.

現在，iphone 3GS的短信息程序更支持了彩信功能。

-So you can share your pictures, videos, and more the same familiar way you exchange text messages with friends and families.

彩信功能使你可以與你的朋友和家人分享你的照片及視頻，就如同原來(lái)發(fā)短信那么簡(jiǎn)單。

-All of my text messages are right here organized and easy to read like normal conversation.

所有的信息都在這里井井有條地儲存著(zhù)，而且發(fā)短信就像進(jìn)行普通交談一般。

-So I can easily pick up a conversation I left off.

這使我能夠輕易地找到我留著(zhù)沒(méi)有回復的短信。

-With MMS, my messages can include pictures, videos, contact info, voice memos, and map locations.

有了彩信，所發(fā)出的信息現在可以包含著(zhù)圖片，視頻，通訊錄信息，錄音文件，甚至地圖上的具體位置。

-To look at a picture or video that someone sent to me, I just tap on it to see it full-screened.

你只需點(diǎn)這兒就能以全屏方式看到別人發(fā)給給你的圖片及視頻了。

-I can even save it to my photo library.

你甚至能夠將其存至你的圖片庫。

-Let's say I wanna send a picture back to Alison.

讓我們來(lái)看看如果我想給Alison回復一張圖片該怎么做。

-I can take a new one, or pick one which is already on my iphone.

我能選擇立刻拍一張新的，亦能從既存的媒體中選取。

-I can also send a message along with it.

同時(shí)也可以附上文字信息。

-I can also forward, and delete text and MMS messages.

我也能選擇轉發(fā)，或刪除多項的彩信信息。

-Tap edit, pick one or more messages, and then tap delete, or forward.

你只需點(diǎn)擊“選取”按鈕，選取一到多條信息，爾后點(diǎn)擊“刪除”或“轉發(fā)”即可。

[Scene 8] Voice Memo 語(yǔ)音備忘錄

-iphone 3GS now includes a new memo app, that let you record meeting, class lectures, notice to yourself, or just about anything.

iphone 3GS 現在預裝了一個(gè)新的備忘錄應用，它能使你以聲音方式錄下會(huì )議，課堂講座，或是提醒你自己要做什么。

-And then share your recordings via E-mail, MMS, or sync them back to your Mac or PC.

你將能夠通過(guò)E-mail、彩信或同步回你的Mac或PC的方式來(lái)分享你的錄音。

-Launch the new Voice Memo app and record a voice memo by tapping here.

點(diǎn)擊這個(gè)話(huà)筒圖標即可運行此應用。

-'Don't forget to print out the movie ticket for tonight.'

“別忘記打印出晚上的**票?！?/p>

-Then tap here to stop recording.

點(diǎn)擊這里就可以停止錄音。

-I can see my saved recordings by tapping here.

點(diǎn)擊這里你能看到你所有的錄音文件。

-Here's a class lecture from the other day. You can tap to play it, or tap here for more info.

這是我前幾天錄的課堂講座錄音。點(diǎn)這兒可以播放，或點(diǎn)這里來(lái)瀏覽關(guān)于此錄音的更多信息。

-I can label it, or give it a custom name.

你能為其分類(lèi)，也能給這個(gè)錄音文件改個(gè)名字。

-Trim it, or even share it using E-mail or MMS.

你還能編輯它，或者使用電郵或彩信來(lái)分享它。

[Scene 9] Search 搜索

-With iphone 3GS, finding exactly what you're looking for is really easy.

在iphone 3GS上想找到你想找的信息是簡(jiǎn)單如斯。

-Let's say I'm looking for a message in mail about a new restaurant that a friend recommended.

來(lái)看看如果我想尋找一個(gè)關(guān)于朋友推薦的飯店的郵件該怎么做吧。

-Just scroll to the top of the inbox, tap in the search filed, and type what you're looking for, then tap search.

你只需在收件箱中向上一拉，點(diǎn)擊搜索區域，然后輸入你想尋找的信息，最后點(diǎn)擊“搜索”即可。

-You'll see all the matching messages and if your mail service supports it, you can even continue searching messages stored on the server.

你將迅速地看到符合搜索關(guān)鍵詞的郵件信息，而且，如若你使用的郵件服務(wù)提供商支持，你還能夠搜索到存儲在服務(wù)器上的信息。

-You can search the same way in contacts, calender, notes, and even your ipod.

你能用同樣的辦法來(lái)在通訊里，日歷，備忘錄，甚至你的ipod里進(jìn)行搜索。

-And if you want to search across multiple applications, it's just as easy with the new spotlight search.

如果你想進(jìn)行跨程序間的搜索，利用新的spotlight搜索也是輕而易舉。

-Spotlight search is located to the left of the main home screen. So I'll just flip to get there.

spotlight搜索在主程序界面的左側。你只需向左一劃即可到達。

-All I need to do is to start typing, and matching results begin to appear instantly. Tapping here completes the search.

你需要做的僅僅是輸入而已，符合條件的搜索結果會(huì )立馬顯示出來(lái)。點(diǎn)擊此處完成搜索。

-Spotlight search is all of my contacts, E-mail, calender and notes, plus everything in my ipod.

Spotlight能搜索所有存儲在此iphone上的信息包括聯(lián)絡(luò )人、電郵、日程安排、備忘錄及ipod中的媒體。

-Once I found what I'm looking for, I'll just tap on it to open it.

找到了你想找的？點(diǎn)擊它即可運行了。

-Spotlight search will also display the names of matching apps and web clips found any of home screen. So I can launch them quickly.

Spotlight搜索還會(huì )顯示符合搜索關(guān)鍵詞的應用和網(wǎng)絡(luò )視頻片段。這樣我能更快地找到它們并運行。

[Scene 10] Apps 應用

-The apps store on iphone 3GS gives you instant access to thousands of incredible apps.

使用apps store，正如同你在瞬間得到了成千上萬(wàn)的牛X應用使用權。

-No matter what you're interested in, gaming, social networking, sports, news, business and more, there's probably an iphone app that will make your iphone uniquely yours.

不管你志趣于何，游戲，社交網(wǎng)絡(luò )，體育，新聞，商務(wù)還是其他的什么，在apps store上很有可能存在著(zhù)一個(gè)應用程序能讓你的iphone獨一無(wú)二地屬于你。

-The apps store makes it really easy to find what you want with just a few taps.

Apps store被設計成使你特別容易能找到你想找的應用，只要輕輕點(diǎn)幾下。

-You can browse recommendations, use the most paid or free apps, search the entire store by title or keyword.

你可以瀏覽我們?yōu)槟銣蕚涞耐扑]，也可以看看付費和免費應用的人氣排行，還能通過(guò)輸入關(guān)鍵詞來(lái)搜索整個(gè)apps store。

-You can even browse by category.

你甚至能通過(guò)分類(lèi)來(lái)尋找應用。

-When you find the app you like, just tap here to buy it.

找到想找的了？點(diǎn)擊這兒就能買(mǎi)下它的使用權。

-It will download wirelessly into your iphone, and can start to use it immediately.

你的iphone將通過(guò)無(wú)線(xiàn)網(wǎng)絡(luò )將軟件下載，完成下載后你即可馬上開(kāi)始使用了。

-With tens and thousands of apps and more being added every day, you can always your favorite apps every time you visit the apps store.

每天，都有成千上百萬(wàn)的新應用被添加至apps store，所以在你訪(fǎng)問(wèn)apps store時(shí)，千萬(wàn)別擔心找不到你想要的。

-That was the brief look at the new iphone 3GS, and some of its amazing new features.

這些只是iphone 3GS引人入勝的一部分新機能。

-To experience iphone 3GS for yourself, visit your apple retail store. Or check out apple.com slash iphone. Thank you!

要親身體驗iphone 3GS的魅力，請速至臨近的apple零售店?；蛘堅L(fǎng)問(wèn)apple.com/iphone。謝謝！

擦。。終于翻完了。。

哥們你不給加分就很不夠意思啦。。

順帶給你說(shuō)下，我在意思基本上都是按照原文翻譯，某些地方為了你能夠讀得通順我給你潤色了一下（因為老美說(shuō)話(huà)習慣跟咱畢竟有些差別）。

因為我自己有iphone，所以在很多地方都作了更容易讓你理解的小變化。

如果對iphone 3GS還有什么疑問(wèn)盡可以找我，呵呵。