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Google's Human Evaluators - 10,000 of them?

         

tedster

3:06 am on Jul 10, 2007 (gmt 0)

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We've known for a while that Google uses human evaluation in evolving their algorithm. They've even got a patent for integrating the humans and the algorithm [webmasterworld.com]. On 2007-06-23, Google held a Scalability Conference in Seattle. Here's an interesting tidbit from a Q&A session with Marissa Mayer:

Q: How do they tell if they have bad results?
A: ...they have 10,000 human evaluators who are always manually checking the relevance of various results.

Article by attendee Dare Obasanjo [25hoursaday.com]

Next time we're trying to figure out some odd change in the SERPs, we might do well do remember this human factor, eh?

netmeg

3:12 pm on Jul 10, 2007 (gmt 0)

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(I don't know why a vision of monkeys, typewriters and Shakespeare came into my head when I read the header of this item, but it did)

reseller

3:13 pm on Jul 10, 2007 (gmt 0)

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Brett

When you wrote this:

We have. She is referring to the fact that she considers every employee at Google a "search evaluator". How to use Google, and how to report poor quality search results is part of orientation for any new employee. If you are a googler and find poor quality search results, it is your duty to report it.

are you referring to the following section of Dare Obasanjo session with Marissa Mayer?

Q: How do they tell if they have bad results?
A: They have a bunch of watchdog services that track uptime for various servers to make sure a bad one isn't causing problems. In addition, they have 10,000 human evaluators who are always manually checking teh relevance of various results.

nalin

3:25 pm on Jul 10, 2007 (gmt 0)

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It surprises me that Google uses these evaluators because the data should be available elsewhere.

Looking at click patters on their site after SERPS change and comparing the number of people click to page 2, or the number that refine their search would gauge result quality.

Looking at toolbar or analytics data for time on a site after a search would also be insightful.

The best data that Google could possible have is the feedback provided by end users in the form of clicks, time on a given result site, and whether they return to try a different result. Google has for a number of years released products that give them access to just this type of data (toolbar and analytics being notable examples). I think the judgment of the masses would (in this case) provide much better data then the opinion of a handful of quality evaluators.

BillyS

3:31 pm on Jul 10, 2007 (gmt 0)

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Current number of employees at Google:10,674

SincerelySandy

4:07 pm on Jul 10, 2007 (gmt 0)

10+ Year Member



As with much of what "google" says, I have a hard time accepting this statement at face value.

thecityofgold2005

4:42 pm on Jul 10, 2007 (gmt 0)

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i recently posted on matt's blog questioning google's commitment to search by asking him what the balance was between search staff and advertising staff..

this kind of release could be seen as a propaganda type response to questions like mine.

i don't believe it at all. i seem to remember matt saying that the webspam team had 200-300 in it. he said that at the time vanessa fox left. all this is based on recollection..

reseller

4:44 pm on Jul 10, 2007 (gmt 0)

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For the sake of future reference, I'm recalling the text of Google's job announcement [google.co.in] which I mentioned in my previous post:

Search Quality Coordinator - Hyderabad

Position based in Hyderabad, India.

Do you have a passion for Google? Do you desire to help improve the quality of Google's search results? Google is recruiting enthusiastic, web-savvy individuals for search quality evaluation.

Responsibilities:

* Reviewing assigned sites for quality and content.
* Troubleshooting website issues and identifying areas of concern and interest.
* Investigating web sites.
* Working on special projects, as needed.

Requirements:

* Excellent web research skills.
* Excellent analytical skills.
* Detail oriented; ability to complete large volume of work quickly.
* Flexible.
* Proven track record of exceptional performance, high productivity and meeting deadlines.
* Ability to work cooperatively and proactively with team members.
* Fluency in English.

A plus:

* One to three years related experience in an Internet company and with web research.
* Previous experience with a computer programming language.
* Familiarity with typical web practices such as managing a domain name.
* Basic HTML experience.

nickreynolds

4:50 pm on Jul 10, 2007 (gmt 0)

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Any guesses as to the salary?

blend27

5:00 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



or are they building/training the algo for more advanced PC users of the future? hmm

pontifex

5:17 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



10,000 may seem like a lot but it's not enough

obviously not! or, and that is a guess, the feedback can not be integrated as it should be.

- "artificial sub domain link boost" works (at least for some major brands I watch)

- the "domain age advantage" is much too strong

- "brainless link bait" produces too good results for a human filter system, IMHO

and some other quality glitches I see, when I google around vote against a 10k human ranking factor.

also, the quote says "... user feedback... is a signal ...", which I understand as another of many signals finally needed to be digested by the algo.

I can not believe, that hiring 100 helping hands myself (which a lot of professionals here could afford) and making them file complaints about specific sites would make any difference in the rank of that site, if all other signals are OK!

this smells like another "we need good press about our quality" approach by a company that re-invented online marketing.

IMHO, the truth lies somewhere between all the facts and fictions around the algo and comments from single googlers.

So, a signal? Yes! More than 10k human rankers? Probably part time, summing up to 500 full-time rankers... maybe even less. I think I could clean out 5 domains per hour (when i work really slow) without real hard work, just using a solid commercial keyword list.

500 full-time human editors could do 2500 domains per hour, which would sum up to 80,000 spam domains wiped from the index per week, yet there are such poor results to find? Either the signals are very very weak or the editors are really really bad!

2 cents,
P!

Hobbs

5:32 pm on Jul 10, 2007 (gmt 0)

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What worries me is the question if those evaluators are civilians (non owners of web sites)

I'd hate to compete in the serps with one of those with all the inside information and connections they have, sort of like dmoz all over again.

europeforvisitors

5:44 pm on Jul 10, 2007 (gmt 0)



I don't get the impression, from public statements made by GoogleGuy and others, that Google's quality evaluators are being used to "clean out" search results. There's no reason to believe that they have the power of DMOZ editors, who act as gatekeepers for their assigned DMOZ topics.

wildbest

5:45 pm on Jul 10, 2007 (gmt 0)

10+ Year Member



Even if they do have 10,000 quality evaluators, a lot of those people may be (and probably should be) part-timers.

I think most of them don't even know they are considered human evaluators by Google... ;)

[edited by: wildbest at 5:46 pm (utc) on July 10, 2007]

crobb305

5:45 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



10,000 human evaluators

Do these 10,000 evaluators have the power to make manual serp changes? If so, that is scary.

sort of like dmoz all over again

My thoughts exactly.

tedster

5:48 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



Do these 10,000 evaluators have the power to make manual serp changes?

Not according to the patent [webmasterworld.com]. You're right, that would be a scary scenario.

reseller

5:53 pm on Jul 10, 2007 (gmt 0)

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nickreynolds

Any guesses as to the salary?

According to this article [searchbistro.com]:

The Google testers are paid $10 - $20 for each hour they filter the results of Google. Payment is done through Payroll. The international agents are instructed by the Human Quality Evaluation Team of Google.

radix

5:58 pm on Jul 10, 2007 (gmt 0)

10+ Year Member



Nobody in this thread has mentioned a visit to their website by a human evaluator.

I did have visits from them on a new site something like 2-3-4 months ago. I spotted them as I was monitoring the logs of the new site. I recall seeing something like 5 visits from various computers based in my country, and the referrer contained something like G evaluation.

My country (former Soviet bloc) is not a big one, population is about 1/30 of that of the US. If my local language site could receive 5 evaluators (probably not everyone in G's local team visited my site), the number of staff in larger markets might be magnitudes larger.

maximillianos

6:17 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member



If I remember correctly, I was paid around $15/hr.

To answer the question about being able to change SERPS, that was not an option.. =)

We were told our data would be used for research purposes and would not directly affect the search results.

It is my opinion that our rating data was/is used to help better tweak their algorithm.

reseller

6:29 pm on Jul 10, 2007 (gmt 0)

WebmasterWorld Senior Member 10+ Year Member Top Contributors Of The Month



maximillianos

Did you get the job at that time through a similar job announcement like this one?

QUALITY RATER - (SPANISH, DUTCH, ITALIAN, FRENCH) This is a temporary role offered through Kelly Services. Google Inc. is recruiting part-time, temporary, home-based workers to help with work on a search quality evaluation on a project basis. You would work at your own pace, and the time and length of any particular work session would be up to you. Candidates will evaluate search results and rate their relevance....

< I shortened the quote
see Terms of Service [webmasterworld.com] >

[edited by: tedster at 7:49 pm (utc) on July 10, 2007]

kkobashi

6:30 pm on Jul 10, 2007 (gmt 0)



Google employs over 10,000 full time people and has temporary employees as well. I would consider every one of them a "human evaluator" that has an impact on search results.
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