Skip to main content

Home/ IB ITGS/ Group items tagged int

Rss Feed Group items tagged

Filter: All | Bookmarks | Topics Simple Middle
Chalana Perera

BBC News | Sci/Tech | Search engine seeks billion URLs - 0 views

news.bbc.co.uk/...410251.stm

ITGS PP health int systems equality

shared by Chalana Perera on 13 Sep 09 - Cached
  • But size is not everything and while alltheweb seemed lightning fast when I tried it, it did not appear to match the relevancy of a much smaller search engine now
  • find more of these highly rated gems and place them on the first or second page of search results, resulting in a better and more satisfying search experience."
  • the result of more than a decade of research into optimising search algorithms and architectures in a project initiated at the
  • ...1 more annotation...
  • storage subsystems, operating in parallel to distribute user queries, search the catalogue and spider the Web.
Chalana Perera

Internet Time and the Reliability of Search Engines | EDUCAUSE - 4 views

www.educause.edu/...153271

ITGS PP int systems reliability equality applications

shared by Chalana Perera on 13 Sep 09 - Cached
  • earch engines are unreliable tools for data collection for research that aims to reconstruct the historical record.
Chalana Perera

BBC - Radio 4 - The Material World 24/10/2002 - 0 views

www.bbc.co.uk/...hematerialworld_20021024.shtml

ITGS PP search engines applications int systems globalization

shared by Chalana Perera on 13 Sep 09 - Cached
  • nternet search engine. But the front pages of such sites as Google, Yahoo and Altavista are hiding hugely complex and refined systems for cataloguing and analysing millions of web pages
  • cheat the engines to come top of the search rankings.
  • find out how they were invented, how they work, and what the future holds for the programs that effectively control our access to the web.
Chalana Perera

The Guts of the Station Finder Map - Inside NPR.org Blog : NPR - 0 views

www.npr.org/...uts_of_the_station_finder.html

ITGS PP applications int systems reliability equality

shared by Chalana Perera on 13 Sep 09 - Cached
  • The system has several underlying database tables, including zip codes, cities and station data. The zip code and city tables, in addition to containing information about the locations, also include the latitude and longitude for the centroid each location.
  • At the core, the system works based on latitudes and longitudes.
  • Once we have the latitude and longitude, we perform a series of calculations based on the Great Circle Calcuation (GCC), which helps us to determine distances on a curved surface (ie. the Earth - and we are assuming that it is not flat). Using the GCC, we look for stations near the latitude and longitude, based on a 100 mile radius from that point. From that list of stations, which is too inclusive, we start our process of narrowing down the results to the actual stations that can be heard.
  • ...1 more annotation...
  • - a web-based service to inform our audience as to which NPR stations are available throughout the country. There are other more sophisticated, more precise ways to identify the station coverage maps which are really overkill for this type of service.
Chalana Perera

Magazine Led to Database's 'Abortion' Search Block : NPR - 0 views

www.npr.org/...story.php

ITGS PP health applications int systems reliability

shared by Chalana Perera on 13 Sep 09 - Cached
  • The block was an "overreaction," says Michael Klag, the dean of Johns Hopkins School of Public Health, which maintains the POPLINE database.
  • An inquiry into why the world's largest database on reproductive health blocked searches using the term "abortion" has found the restriction was put in place because of articles from an abortion advocacy magazine available on the site.
Chalana Perera

BBC News | SCI/TECH | Search engines swamped - 1 views

news.bbc.co.uk/...1544122.stm

ITGS PP globalization reliability security int systems

shared by Chalana Perera on 13 Sep 09 - Cached
  • Internet users have been turning en masse to search engines for information, following the unprecedented terrorist attacks
Chalana Perera

Health Database Blocked Searches on 'Abortion' : NPR - 1 views

www.npr.org/...story.php

ITGS PP int systems applications reliability control equality health

shared by Chalana Perera on 13 Sep 09 - No Cached
  • The world's largest database on reproductive health, POPLINE, has been blocking searches using the term "abortion"
  • discrepancy in the retrieval
  • "Eliminating this term essentially blocks access to the reports in the database and ultimately to information about abortion,"
  • ...2 more annotations...
  • Sorrough said librarians were instructed by POPLINE to use alternate terms such as "unwanted pregnancy" or "fertility control, post-conception."
  • administrators then made the decision to restrict 'abortion' as a search term," she said.
Chalana Perera

Xtra Ordinary Operating System for XO Laptop - OLPC News - 0 views

www.olpcnews.com/...ordinary_operating_system.html

SOCIAL equality IT SYSTEMS int systems comm sys applications basics IMPACT education ITGS Portfolio2 CriterionB

shared by Chalana Perera on 12 Feb 10 - Cached
  • Chalana Perera on 12 Feb 10
     
    IT background of the issue
  • Chalana Perera on 12 Feb 10
     
    IT background of the issue
« First ‹ Previous 41 - 60 of 122 Next › Last »
Showing 20▼ items per page