Archive for ‘Web & Technology’

PageRank Modelling Study

This is an academic study of controlled PageRank modelling of a simplified link graph in a collection of three documents.

Key Observations:

  1. Introduction of a new document into the existing collection reduces the PageRank value of existing documents
  2. Differences in PageRank value of chain-linked documents vs.
 

Wolfram | Alpha Updates

What’s new in Wolfram|Alpha? Here’s a list of the latest changes and updates rolled out in May 2012.

Wolfram Alpha Computational Knowledge Engine

NEW CURRENCY DENOMINATIONS

sample inputs:
zambia 25 ngwee coin
1 haiti gourde coin
50 ethiopia birr bill
25 east timor centavos
200 algeria dinars

CITY BOUNDARIES ON LOCAL MAPS

sample inputs:
nyc
local map of Santa Fe, NM

ENTITY-PROPERTY CHAINING

sample inputs:
population of the bordering countries of france
GDPs of the official speaking countries of mandarin chinese
tax rate of the states of hoover dam
birthdays of the discoverers of neptune
most common words in the acts of the Merchant of Venice

VENUS TRANSIT

sample inputs:
venus transit

PROPERTIES OF FALLING RAINDROPS

sample inputs:
5mm diameter rain drop
what is the average raindrop size in 3inches of rain per hour?…

 

Google AdWords Ad Sitelinks

If you want to get the most out of your Google ads, you will want them to include links to various pages of your website, rather than one link to the main landing page. Luckily, Google has provided the sitelinks ad extension feature, which enables you to show customers the various services you offer, with links directing them to more info.…

 

Google Knowledge Graph: How did this happen?

Google goes one step further in attempt to become an intelligent search engine by introducing their knowledge graph results. “Search is a lot about discovery—the basic human need to learn and broaden your horizons.”, Google.

Knowledge Graph

Predictions for 2012

Earlier this year I predicted the three key improvements in Google’s algorithm will be improved spam detection, social graph and knowledge graph.…

 

Search Tips: Download PDF Collections

Search Google like a pro with these handy tips on advanced search queries, utilities and research tools.

How to download multiple PDF documents on the same subject from the same site?

Here’s our search query: https://www.google.com.au/search?q=site%3Amit.edu+filetype%3Apdf+inurl%3Aastronomy&num=100

Understanding the query:

  • site:mit.edu (search only through mit.edu)
  • filetype:pdf (only display PDF documents)
  • inurl:astronomy (word astronomy must be mentioned in the URL)
  • &num=100 (Optional: this parameter enables 100 results per search result page)

Downloading PDFs

Now that your documents are listed in search results use the “Download Master” Chrome extension to download all PDF files to your computer.…

 

Quick Tip – Controlling non-profitable keywords with Automated Rules

AdWords Automated Rules

 

Today’s quick tip is about using AdWords Automated Rules to pause keywords.  When used correctly, the function helps to save time, stop wasting money and eliminate underperforming keywords, thus making your AdWords account more efficient.

Under-performance Definition:

A keyword is underperforming if it has a very high cost per conversion, which eats up too large a portion of the profit. …

 

Harvard and MIT offer free online education materials

Harvard University and the Massachusetts Institute of Technology (MIT) announced last week the launch of edX, a transformational partnership and initiative in online education. EdX presents a not-for-profit joint venture between these two institutions that will collaborate to “enhance campus-based teaching and learning and build a global community of online learners”, offering online versions of their classes and those of other universities.…

 

Ad Preview Tool – Google

If you’ve already got your ads running on Google, you may want to see that your money is being put to good use by checking where your ad is appearing in searches. The place where your ad appears is referred to as an “ad position”.…

 

No More Video Store Rentals – Sit at Home and Rent Directly From Google Play or YouTube

For all movie fans across Australia there are some great news coming from Google. For those who are members of video clubs and are used to renting movies they don’t need to do it anymore.

movie rentals australia

Google has launched a brand new Movies page on YouTube Australia as well as Movies on Google Play[1].…

 

Connected and Free: World Wide Web professionals at #WWW2012

This is the Part II from the highlights of the World Wide Web 2012 (#WWW2012) conference and here are some notes of mine but this time focusing on people, attendants who have been actively participating in the web professionals meeting and their impressions of the conference. 

 

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