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Google Software Engineer on Google Images

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I’ve asked Google some questions in regards to their image search engine. Here are the answers by Radhika Malpani, Senior Staff Software Engineer at Google.
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<strong>Google is confident they have the best web search, if you apply quality metrics through testing. Are you also confident you have the industry’s best image search engine too... and if so, why?</strong></p>
<p>Yes. To create the best image search engine, we focus on comprehensiveness, relevance, and user experience. According to our internal testing, we score the highest when it comes to all 3 factors combined.</p>
<strong>I’ve launched a new domain with many images around half a year ago... and half a year was also about the time it took for the first images to show up in Google (using a “site: example.com” query). Isn’t that quite slow? And what factors influence the speed of image indexing?</strong></p>
<p>Many factors are involved before images show up in Google search results. One of the key factors is the PageRank of the site which the image is on.</p>
<strong>You do a good job in filtering out adult images for non-adult search queries, whereas Yahoo’s image search is often showing adult stuff on non-adult terms. What approaches do you use to make your results safe?</strong></p>
<p>This has been an important area of focus for us. We have created advanced proprietary technology that checks keywords and phrases, URLs, and the image itself.</p>
<strong>Google Image search was temporarily showing in a <a href=

We recommend that webmasters use these attributes to accurately help describe the image.

Yahoo provides a REST/XML API for server-side queries. Google allows people to use the AJAX APIs, but never offered a server-side solution for image results. What are the reasons for this?

We are always evaluating new ways to improve the user experience, but have nothing to share with regard to the use of the AJAX API for image search results at this time.

What do you think of developers screenscraping Google Images content for their own tools?

We have developed a clear

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