Poor Spelling Beats Google's China Filter

antifoidulus writes "CNN's money section contains a blurb(among other blurbs) about how poor spelling can beat Google's Chinese filter. The example given in the article is that a search for "Tiananmen" will yield peaceful pictures of the square, but a search for common mis-spellings such as "Tienanmen" will yield plenty of photos of tanks."

That's unpossible!

I are a gud spelr!

Re:That's unpossible!

I are a gud spelr!

Did you mean: Tibet should be free

Re:That's unpossible!

Ironically this could force China to improve the overall education level, which would of course backfire as an educated populace is much more difficult to control.
[/longshot]

-nB

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Obvious

that not everything can be filtered but this is a search using english alphabets. How good (read horrible) is the filter which searches using chinese langauge ?

Re:Obvious

In Chinese, a single character ( for example -- though I'm not sure if this will display properly) represents a whole syllable (as well as a meaning or idea), rather than a consonant or vowel, as most English letters do (some are unpronounced, or just change the sound of another letter).

This eliminates certain types of bad spellings, obviously, but opens certain avenues that aren't available in English, such as choosing characters with similar meanings but different sounds, or similar sounds but different meanings.

For the Tiananmen example, the characters for TianAnMen () mean "Heaven," "Peace," "Gate." Heaven could be replaced with "Sky," which has a completely different sound, or "Money," which (if I rcall correctly) is pronounced "Qian" (Q sounds close to English CH). This could also happen with with the other two characters in this word, and of course for many other 'bad' words.

The reason that common words like "pr0n" have become associated with porn, or other examples, is that a community of users agreed upon a certain misspelling of those words, and the same can and WILL happen in China to evade whatever filters search engines use. There is no way to have an even semi-open search system that doesn't allow human ingenuity to overcome its filters, and the brief history of the internet in the west indicates that these filters will, ultimately, be only partially and temporarily effective.

Re:Obvious

I can only add that the Chinese government, with their insistence on the not-at-all-intuitive-to-non-Chinese-speakers romanization system that is Pinyin, have only themselves to blame.

Ask a number of reasonably educated people whose native languages use the Roman alphabet to listen to a Chinese person pronounce "Tiananmen" and then write down what they think the spelling should be. I guarantee many of them will "misspell" it as "Tienanmen", since the vowel in question is pronounced like the sound that most languages express with an "e".

Expect more of this as Pinyin isn't going away any time soon.

(And yes, I do have my flame-retardant jacket, Academic Dispute Wear Edition, all prepared!)

Re:Obvious

Putko, they did of course have standards, but they only make sense if you already speak Chinese.

"Tian" does not rhyme with "fan", but somehow, "duo" and "luo" rhyme with "po" and "fo", which do contain "u" sonuds in the middle; they just aren't written because plain "po" doesn't exist.

One of the purposes of pinyin was a potential replacement of the character system with it, so I can understand them not considering the interests of non-native speakers, but if you're going to force it on non-natives too, well, expect to see spelling "errors" becmoe unavoidable when they use Chinese.

This gives me an idea...

This gives me an idea of how I can get past Bush and Co. monitoring my internet usage. I'll be able to say with a straight face that I never searched for Porn, but rather I was hoping to find information about shellfish [google.com]

Taco, You Got a Great Career Ahead Of You...

...as a Leader of the Revolution.

Heh.

Kind of reminds me of when Napster installed that half-assed search filter. Midonna and Mitallica suddenly became quite popular.

People who want to get information will get it, and you can't stop them.

Exploiting Google's Page Rank

As we all know, Google has a patented page ranking system [google.com] that calculates the correlation of words with websites. It does this (primarily) by reading links from all of its cached websites and parsing html links to determine what words are being used to describe the page in the link.

A while back, this was known as Google Bombing [wikipedia.org] and certain individuals exploited Google's system very effectively by linking to pages with words that, by all rights, were not very accurate. After all, do a Google search for the word 'failure' [google.com] and the top site is George W. Bush's Whitehouse domain Biography.

So what do you do to help the Chinese? Perhaps you could make a page with two columns. In one column would be the correct text with no link and the key word. In the other column would be all the permutated misspellings with links to the real sites. You could host this one your website and send it to friends asking them to also host it. They would need to slightly alter it and host it but it would effectively provide the page ranks for the misspellings and allow anyone in China (who has access to your page) a key if they need it.

Perfect Example...

This is a perfect example of why I've been saying all along that google is making the right decision in cooperating with the Chinese Government: http://yro.slashdot.org/comments.pl?sid=175251&cid =14571383 [slashdot.org]

Re:Perfect Example...

Damn right -- the ultimate censor is if nobody provided search services except for some sort of gov't run site where every page is cleared ahead of time.

Interesting.

Now was this simply a failure of the filter method used, or did google deliberately create a weak filter to subvert the effort?

Re:Interesting.

Google has really good suggested search terms for typos. Hint, hint. Skeet, skeet.

Re:Tanks

It's not just any picture of tanks; it's the picture of that guy who paused on the way home from shopping to stand in front of four tanks. You know, big metal machines that can squash a pedestrian flat without noticing? Amazingly, as famous as this picture is it is unknown inside China. My Chinese friends in college had never seen it or anything of those ill fated demonstrations despite being in Beijing when it was happening. The word on the street in town during the protests was simply that 'something is happening' and everybody better stay in their homes if they know what's good for them. The Chinese government's crackdown on the media is impressively (depressingly?) comprehensive.

Valuable Lesson from Spammers

Who would have thought a thechnique spammers use to beat filters would have real-world value.

Is Google's filter Baysian based?

Re:Valuable Lesson from Spammers

I don't know how well (if at all) bayesian filtering and stuff would work for "kanji"

All right, this question has come up several times in the thread.

The Mandarin dialect has approximately 31 phonetic components. These can be combined as single phoneme, dual phoneme, and triple phoneme groups. Some sounds always stand alone, some combine into triples, some do not. Some phonemes only exist as initials. Some only as finals, etc. etc. The end result is a hundred-odd unique phonetic combinations.

Then there are tones. Five tones per phonetic combination. There are a few sounds that never appear in certain tone patterns, but this is the exception, and not the rule. So this brings us up into mid 3-digits of total possible sound groupings, including intonation.

Now, you've probably heard somewhere that there are thousands of characters. So if there are only a few hundred unique sounds, but thousands of characters, of course, you have homonyms everywhere.

(I was going to do a demo of how this works, but /. doesn't like me writing in hanzi. Go to http://www.zhongwen.com/ [zhongwen.com] and go to the "pronunciation" section of the dictionary. You'll see it as clear as day that way).

Now, the problem is that there are many characters mapping to each sound. As such, while you can only mess with English words so much before they become unrecognizable (porn, pron, pr0n, prawn, etc.), you can make hundreds of permutations of any common phrase in Chinese simply by swapping out the correct character for a different one.

I am not aware of a Chinese version of l33t-speak. There's trashy, slang Chinese, sure. But either you have the right character, or you don't. Without a standard nomenclature for screwing up words, it becomes hard to try alternate 'spellings' to work around the filter.

This is irony at best...

So.. Chinese people speaking the same broken Engrish on the Internet as they typically do elsewhere beats the Great Firewall of China.

Engrish in the spirit of Freedom!

Not for long

It would probably be better to *NOT* point these things out.

Type of filter

So (serious question to those more knowledgeable) does this mean that the Google filters are simple keyword matches then? I'm surprised because I would have though that they might have used something more complicated like cluster analysis. For example latent semantic analysis [wikipedia.org] could well have noted mis-spellings of words and clustered them together with the correct spelling thus allowing the misspellings to be filtered out too.

LSA is useful for dealing with synonyms, so I cannot see any reason why it wouldn't work with misspellings (assuming that they're common).

The weakness of computers

...and so the weakness of computers is revealed: people and their presumption of perfection.

On Behalf of Google, Freedom, and common sense

SHUT UP!

Do you want to ruin it?

Come on, damnit! Shutupabout it.

Consider this the "getting your foot kicked under the table" move.

Re:On Behalf of Google, Freedom, and common sense

This seems as good a place to bring it up as any.

Let's do a thought experiment.

On one side, we have a reasonably interesting search engine company.

On the other, we have a control-minded, autocratic government.

The search engine company (that wants to operate in China) is told by the autocratic government "We don't want Bad Things sneaking in through the search engine. Keep Bad Things out."

The search engine company says "OK. We'll play along. Give us a list of things you don't want to see. We'll get rid of them".

"Taiwan Independence" returns 0 results.

"Free Tibet" is delinked.

Various combinations of Tiananmen, 6 and 4 mysteriously vanish.

Unfortunately, Bad Things do not fit into nice little boxes. People mis-spell words. While it is easy to come up with a list of sites that contain Bad Things you do not want to see, new sites come up all the time. Is my friend's picture gallery from Tiananmen just some postcards to the folks back come, or is there some subtle political commentary in there? Well, you'll have to read it and find out.

If I search on (former Taiwanese president) Lee Teng-Hui, does that contain Bad Things? Does it link to Bad Things? How dangerous is a stooped 85 year-old former college professor anyhow?

Is Ghandi axiomatically Bad? Martin Luther King? Doesteyevsky? The list goes on and on and on.

The censors can control the obvious things. Ultimately, they will lose.

The real problem is that China is, for all its faults, a modern country. People come in, people fly out. When I go to China, lots of people ask what's going on in the outside world. I am a little circumspect in what I say, but my memory banks don't magically get erased when I cross over from Hong Kong to Shenzhen. Over 90% of the Chinese students you see toiling away at your local research university will ultimately go home. That's just the way it goes. They too don't forget whatever subversive thoughts may have crept into their heads during five or six years of study abroad.

The deck is stacked, and the good guys will ultimately win.

How to Hack Google's censor in China

Chinese web users can see full, uncensored results for their Google search by replacing "&meta=" with "&meta=cr%3DcountryBR" in the URL. Once the string is replaced, the censorship will not affect the results.

This is what a chinese search for Democracy looks like after this method has been applied:

http://www.google.cn/search?hl=zh-CN&q=democracy+c hina&btnG=%E6%90%9C%E7%B4%A2&meta=cr%3DcountryBR [google.cn]

Am I the only one...

Am I the only one thinking "why are we adveritising this so they modify their filters and improve them"? That's great that people are finding ways around the filters... but maybe keep that on the down low??

The streets find their own uses for technology.

Look... as much grief as Google is getting for this, they know hackers are going to get past the wall. The Great Fire Wall of China will work about as well as the original did. It's there to make a point and it's not going to stop anyone.