释义 |
CAPTCHA ˈkæptʃə COCA¹³⁶⁹⁰⁶iWeb²²⁵⁷⁰ 基本例句 n.Completely Automated Public Turing test to tell Computers and Humans Apart;全自动区分电脑与人类的图灵测试¹⁰⁰ Despite these difficulties, CAPTCHA has become one of the most popular spam prevention devices. 如果忽略这些困难不谈, CAPTCHA已经成为了时下最流行的垃圾信息防治工具之一。 ibm Fend them off with more generic error messages and possibly require to enter a CAPTCHA. 用更通用的错误信息来阻断这种攻击,可能需要输入一个验证码. yeeyan If you use CAPTCHA make sure the letters are readable: several sites use CAPTCHA filters as a method of reducing spam on comments or on registration forms. 有些网站将图片认证作为对抗垃圾评论的方法,或是在注册表单上使用。 tzlink The biggest flaw with all CAPTCHA systems is that they are, by definition, susceptible to attack by humans who are paid to solve them. 所有的 CAPTCHA验证系统都有一个最大的瑕疵:顾名思义,它们在人类本身的进攻面前不堪一击,有人付款给这些人破解它们。 ecocn A CAPTCHA is a program that can generate and grade tests that humans can pass but current computer programs cannot. 一个 CAPTCHA程序能够生成一些人类能通过,但是目前的计算机却无法通过的测试。 infoq And some people, such as the visually impaired, cannot see CAPTCHA images at all, so this technique exhibits poor accessibility, and can even be illegal in some circumstances. 有些人,比如视觉障碍人士,根本就看不到 CAPTCHA图像,所以这个技巧的适用性比较差,在某些情况下甚至是不合法的。 ibm Are some CAPTCHA devices better than others? 是否有些 CAPTCHA设备比其他设备更好? ibm But for the sake of humanity, please don't make me decipher that10 characters Captcha image. 但是为了人类着想,请别让我去识别1有0个元素验证码图像。 basicbbs But if a computer can’t read such a CAPTCHA, how does the system know the correct answer to the puzzle? 但是,如果计算机不能正确识别 CAPTCHA,系统如何知道用户输入的答案是否正确呢? yeeyan Each unknown word is presented as a CAPTCHA several times, to different users, to ensure that it has been read correctly. 每一个未知词作为验证码呈现给不同用户数次,确保它被正确辨认。 ecocn Even better, the system has proved to be far better at resisting attacks than other types of CAPTCHA. 更妙的是,这一系统已经证明其在抵御攻击方面比其他类型的验证码具有更加卓越的性能。 ecocn Even if those numbers exaggerate the system's efficacy tenfold, though, it would still represent a significant blow to the CAPTCHA model. 即便这些结果是实际系统效用的10倍,也仍然是对 CAPTCHA模式的一记重击。 ecocn Figure3 is an example of a CAPTCHA image. 图3是 CAPTCHA图像的一个例子。 ibm For example, if we detect a number of suspicious login attempts for a given account, we will require a CAPTCHA, and we may even temporarily suspend access to the account. 例如,如果我们检测到某个账户可疑到已被试着登录很多次,,那我们将要求 CAPTCHA,甚至可能暂停访问该账户。 yeeyan He gives an example: a CAPTCHA in which each letter was always formed out of the same number of pixels. 他举了一个例子:在一个验证码中,每个字母都是由一定数量的像素组成的。 yeeyan If you've signed up for any sort of online service there is a high likelihood you're very familiar with CAPTCHA. 如果您曾经需要在线注册任何形式的网上服务,你很可能已经熟悉了 CAPTCHA。 yeeyan More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. 具体地说,就是将 OCR无法正确识别的单词以图片的方式显示并作为 CAPTCHA来使用。 infoq Moreover, you can require to enter a CAPTCHA after a number of failed logins from a certain IP address. 此外,在某一个 ip地址多次登陆失败之后你可以要求输入一个验证码。 yeeyan Of course, but picking the right CAPTCHA device is an implementation detail. 当然,选择正确的 CAPTCHA设备是一个实现细节。 ibm Once you’ve read the information on the page, you have to enter your password, a captcha code and then confirm that you want to delete your account. 当你需要阅读网页的信息时,你必须输入法密码、验证码,然后确认页面上你想要删除的信息。 yeeyan Readers might have noticed that both of Google's CAPTCHA systems suddenly become more difficult to parse. 读者可能已经注意到 Google的 CAPTCHA系统突然变得更难识别。 ecocn Spammers use optical character recognition to defeat CAPTCHA, so there is usually significant distortion to the images. 垃圾信息散布者常常会使用视觉字符识别来破解 CAPTCHA,所以通常我们需要严重歪曲这些图像。 ibm Such words are used to generate a CAPTCHA by combining them with a known word, skewing the image and adding extra lines to make the words harder to read. 这些词汇和另一个已知词汇组合,将图像扭曲,并加上一些多余的线增这些词的辨认难度,这样来产生一组验证码。 ecocn The most popular such method is CAPTCHA. 最常见的一种方法是 CAPTCHA。 ibm The image is then presented as a CAPTCHA in the usual way. 然后这个图片以常规方式显示为验证码。 ecocn The point of the CAPTCHA is that reading those swirly letters is something that computers aren't very good at. 该测试的重点在于,对于计算机来说,它们不善于辨识这些纠结的字母。 yeeyan The right piece of article writing software can support captcha text and quickly move you through the submission process. 在编写软件物权一块可以支持快速移动的文字和验证码通过提交过程。 corrugatedroofing.info Their assorted techniques recognise anywhere between half and nearly all letters and numbers, depending on the particular CAPTCHA algorithm in use. 根据具体使用的 CAPTCHA算法,他们的分类技术对数字和字母的识别率可以达到50%至将近100%之间。 ecocn To validate the captcha we need to save the random text written to the captcha image somewhere and then check it at the form submission time. 为了对验证码进行检验,我们需要将验证码中的文本保存起来,然后在提交的时候进行检查是否一致。 oschina |