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* How does Google collect and rank results
* Google Base Is In The Red
* Paynet Systems Business of the month
* An Ebook on Ecommerce Stores : A Guide to Online Promotion.
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How does Google collect and rank results? |
One of the most common questions we hear from librarians is "How does Google
decide what result goes at the top of the list?" Here, from quality engineer
Matt Cutts, is a quick primer on how we crawl and index the web and then
rank search results.
Crawling and Indexing
A lot of things have to happen before you see a web page containing your Google
search results. Our first step is to crawl and index the billions of pages of
the World Wide Web. This job is performed by Googlebot, our "spider," which
connects to web servers around the world to fetch documents. The crawling
program doesn't really roam the web; it instead asks a web server to return a
specified web page, and then scans that web page for hyperlinks, which provide
new documents that are fetched the same way. Our spider gives each retrieved
page a number so it can refer to the pages it fetched.
Our crawl has produces an enormous set of documents, but these documents aren't
searchable yet. Without an index, if you wanted to find a term like civil war,
our servers would have to read the complete text of every document every time
you searched. So the next step is to build an index. To do this, we "invert" the
crawl data; instead of having to scan for each word in every document, we juggle
our data in order to list every document that contains a certain word. For
example, the word "civil" might occur in documents 3, 8, 22, 56, 68, and 92,
while the word "war" might occur in documents 2, 8, 15, 22, 68, and 77.
Once we've built our index, we're ready to rank documents and determine how
relevant they are. Suppose someone comes to Google and types in civil war. In
order to present and score the results, we need to do two things:
1. Find the set of pages that contain the user's query somewhere
2. Rank the matching pages in order of relevance
We've developed an interesting trick that speeds up the first step: instead of
storing the entire index on one very powerful computer, Google uses hundreds of
computers to do the job.
More... |
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Google Base Is In The Red |
The homepage for Google Base has been tweaked a bit, with a
much simpler look-and-feel and a few links in red.
The first version of Google Base served as a basic
tutorial to using the service. Users can post items and
information to Base and Google hosts and indexes it. The
various features Google made available in Base, along with
reports of services like Automat and Payments in development,
led many to believe Google will soon compete with eBay and
Craigslist for classifieds.
Now the main Google Base page has dispensed with the
handholding. To describe the new look, words like
"utilitarian" and "Spartan" come to mind. Google Base displays
a list of recent searches; links to post an item or bulk
upload a number of items, and twenty links under the "browse
posted items" label. A few of the links are in bold, like
Blogs and Podcasts, while others show up in red, like Jobs and
People Profiles. It's a broad selection of topics to focus
upon the main page as search starting points. How many people
really click on the Patents link? (Ok, besides me.) The Jobs
link returns results in a local search that almost exclusively
come from CareerBuilder.com. As a beta service, Base
will be subject to a variety of adjustments and changes, like
the implementation of jump pages for automobile and other
listings. Once a mechanism for processing payments gets rolled
out, we expect to see even more changes take place. Click
Here.
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Post
a query here and your
question might just be published in the next edition of
PaynetSystems Newsletter. |
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Smart Cards |
Smart cards could be best described as credit cards with a mini processor in
the form of an embedded chip. The trends of online banking and online
shopping are said to become safe with the secured environment that smart cards
bring. Smart cards are the key component of many security strategies and
Hypercom has led the charge for smart cards and our products adhere to ISO 7816
and EMV specifications. The Hypercom EMV solution has successfully passed all
644 of EMVCos Level 2 tests, being the first vendor in the world to achieve this
distinction.
Smart cards provide:
1. Tamper proof storage for personal information
2. Key components such as authentication, digital signatures.
Smart Cards are the future for transaction security. While the magnetic
swipe cards can hold only 79 bits of data, smart cards can hold 32,000 bits. |
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| About Us |
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Paynet Systems is a Registered Merchant Service Provider of Wells Fargo bank, NA.
We approve 96% of our applicants and service businesses in all 50 States.
Paynet Systems provides unparalleled 24-support assuring
fast and reliable service. Our promise of consumer
satisfaction, achievements and experience make Paynet
Systems the clear choice. more..
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