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Use of the Internet (web searching)and it’s tools/technologies for teaching /learning activities                          ...
Objective of the programme    To build the capacity to enable the participants for     effective web searching (Internet)...
Topics     Overview of the Internet     Web searching techniques     Evaluation of the resources     Web 2.0 concepts ...
Overview of the Internet -Is a network of networks within which all devices     communicate via the TCP/IP protocol suite ...
Overview of the Internet contd… Three levels:-   1. A physical network- it is a world wide network.    - Every device conn...
The Internet… 2. A collection of protocols 3. An ever increasing, conceptual network of Internet resources accessed by    ...
Web Searching Techniques  Why?  It’s a challenge     Vast amount of resources     No organisation     No direct searchi...
Web Searching Techniques contd.. We should know the techniques-    to access to relevant information,     to get the rec...
Web Searching Techniques contd… Problems                              Too much     Most of the              information I ...
Web Searching Techniques contd… Some tips:      Specify your search terms      Use professional terms      Use the keyw...
Web Searching Techniques contd… A. Formulation of query statements      Exact wording or phrase- by surrounding terms wit...
Web Searching Techniques contd…    Webpage title     e.g. intitle: b. p. koirala         allintitle:abcdef    Definition...
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No space                August 23, 200917
Space             August 23, 200918
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Web Searching Techniques contd… B. Use of Boolean operators   (AND, OR, NOT) C. Truncation    e.g. epidem* D. Nested searc...
Boolean operators      AND- retrieves only records containing both terms.        e.g. War AND peace      OR- retrieves r...
Evaluation of the Internet Resources   Why and how can we evaluate the resources?   Because:   -   Anyone can put up a web...
Evaluation contd.     Is it someone’s personal page?      Look for personal name following a tilde(~) or percentage sign ...
Evaluation contd.      Quality information       Look for indicators such as links, related links, reference whether     ...
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Web 2.0 -   Term coined in the year 2004 by Tim     O’Reilly -   refers to 2nd generation of Internet service      such as...
Web 2.0: Evolution Towards a Read/Write PlatformCompanies                             CommunitiesHTML                     ...
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Web 2.0 concepts    Social      - shared, open collection, browsable, linkable     Participative     - massively multi-u...
Web 2.0 contd… Web tools :- A. Social book marking     -effective tool for teaching/ learning activities B. Blogs C. Wiki ...
A. Social Book marking     -Founded by Joshu Schachter in 2003     - It is a practice of saving book mark to a public webs...
Social Book marking contd…      Collaboration      - students, friends, professional community etc.          Assignment- ...
Social Book marking Vs favorite        save on the Internet         Only in one computer      i.e. Millions of computers ...
Social Book marking contd. Example: -   Connotea     (a free online reference management service for scientists,     resea...
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Delicious   -It is a social bookmarking   service that allows users to   tag, save, manage and share    resources on the I...
Delicious contd…  Why should we use social  book marking?  We have already discussed  for the need of it.  Generally, we c...
Delicious contd… What can we do?    Book mark any site on the Internet, and get to it from     anywhere, at anytime and b...
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B. Blogs -    Web logs in short “blog” -    Named by John Barger -    These are web service that allow us to submit/ post ...
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C. Wiki -   Ward Cunniggham invented in 1995 -   It is a type of website that allows us to add and edit     content and su...
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D. Really Simple Syndication (RSS) -   Also known as Rich Site Summary -   Make easy for one website to include a list of ...
   Delicious login       Demonstration               Thank You                       August 23, 2009      51
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Web searching

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Transcript of "Web searching"

  1. 1. Use of the Internet (web searching)and it’s tools/technologies for teaching /learning activities Binod Kumar Yadav Senior Librarian Central Library, BPKIHS August 23, 2009 1
  2. 2. Objective of the programme  To build the capacity to enable the participants for effective web searching (Internet).  To use the tools (Internet technologies) for professional and personal benefit.  To access to quality information.  To optimize the use of the resources. August 23, 2009 2
  3. 3. Topics  Overview of the Internet  Web searching techniques  Evaluation of the resources  Web 2.0 concepts • Social bookmarking: Del.icio.us, connotea, citeUlike etc. • Wiki • Blogs • RSS • Forum  Demo August 23, 2009 3
  4. 4. Overview of the Internet -Is a network of networks within which all devices communicate via the TCP/IP protocol suite - No one run the Internet, like a cooperative. - Open architecture (anyone can connect up and use it. - So, it is a worldwide network of computer networks that use the TCP/IP network protocols to facilitate data transmission August 23, 2009 4
  5. 5. Overview of the Internet contd… Three levels:- 1. A physical network- it is a world wide network. - Every device connected to the Internet has an Internet address: i. The numeric IP address, valid from 0.0.0.0 to 255.255.255.255 e.g. 131.118.80.1 124.108.120.31 (www.mail.yahoo.com) 64.233.181.99 or 147 (www.google.com) ii. The text address- Uniform Resource locator (URL), e.g. www.frostburg.edu August 23, 2009 5
  6. 6. The Internet… 2. A collection of protocols 3. An ever increasing, conceptual network of Internet resources accessed by Internet services i. Communication services: - Email - Forum, Electronic bulletin boards and newsgroups - Mailing lists: allow to subscribe mass communication on a specific subject - Chat/ IM ii. Resource access services - File transfer, Remote login iii. Information retrieval - www: information retrieval system - Gopher ( Go for Information on the Internet) - WAIS ( Wide Area Information System) August 23, 2009 6
  7. 7. Web Searching Techniques Why? It’s a challenge  Vast amount of resources  No organisation  No direct searching  Coverage of search tools very limited  Sites come and go  constant change August 23, 2009 7
  8. 8. Web Searching Techniques contd.. We should know the techniques-  to access to relevant information,  to get the recall (unwanted) less and precise (relevant) information more, and  familiar with various techniques that the Search engine such as Google, Yahoo, Altavista, pubmed etc. used. August 23, 2009 8
  9. 9. Web Searching Techniques contd… Problems Too much Most of the information I can’t sites I retrieve find the useful aren’t relevant to my query How can I make my search more I can’t see why specific? I’m getting these results! August 23, 2009 9
  10. 10. Web Searching Techniques contd… Some tips:  Specify your search terms  Use professional terms  Use the keywords from standard tools- SLSH, LCSH, MeSH and others  Use lowercase letters  Ignore preposition, article and other stop words  Read the searching guideline of the particular databases August 23, 2009 10
  11. 11. Web Searching Techniques contd… A. Formulation of query statements  Exact wording or phrase- by surrounding terms with quotes e.g. “human swine influenza”  File format e.g. “human swine influenza” :filetype:ppt ,, :pdf filetype:ppt site:edu “global warming”  Website or domain e.g. site:edu “b. p. koirala” site:bpkihs.edu “contact” August 23, 2009 11
  12. 12. Web Searching Techniques contd…  Webpage title e.g. intitle: b. p. koirala allintitle:abcdef  Definition e.g. define: swine influenza  Specific website or whole class of sites e.g. "mbbs curriculum":site:edu August 23, 2009 12
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  17. 17. No space August 23, 200917
  18. 18. Space August 23, 200918
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  20. 20. Web Searching Techniques contd… B. Use of Boolean operators (AND, OR, NOT) C. Truncation e.g. epidem* D. Nested searching e.g. history AND (war or peace) e.g. (swine OR H1N1) AND (flu OR influenza OR virus OR pandemic) August 23, 2009 20
  21. 21. Boolean operators  AND- retrieves only records containing both terms. e.g. War AND peace  OR- retrieves records containing either one or War peace more terms war  NOT- exclude records containing the second term e.g. war NOT peace August 23, 2009 21
  22. 22. Evaluation of the Internet Resources Why and how can we evaluate the resources? Because: - Anyone can put up a webpage - Many sites are not updated - No quality control - Most sites not “peer-reviewed” August 23, 2009 22
  23. 23. Evaluation contd.  Is it someone’s personal page? Look for personal name following a tilde(~) or percentage sign (%)  Is the server commercial? e.g. geocities.com  What type of domain does it come from? ( educational, non-profit, commercial, government etc.) Look the domain extension: .gov, .edu., .mil, .org  Is it current and updated? Look for last updated  What are the author’s credentials on this subject? August 23, 2009 23
  24. 24. Evaluation contd.  Quality information Look for indicators such as links, related links, reference whether scholarly or not.  Use www.alexa.com ( web information company) ( type URL in the search box) - to know the traffic details, ownership for domain name, sites that link to the page and others August 23, 2009 24
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  28. 28. Web 2.0 - Term coined in the year 2004 by Tim O’Reilly - refers to 2nd generation of Internet service such as social networking, wiki, blog etc. - Allows to interact and customize information over cyberspace August 23, 2009 28
  29. 29. Web 2.0: Evolution Towards a Read/Write PlatformCompanies CommunitiesHTML XML August 23, 2009 29
  30. 30. August 23, 200930
  31. 31. Web 2.0 concepts  Social - shared, open collection, browsable, linkable  Participative - massively multi-user, web-based applications  Tagging - organize/ categorize with keywords - flat, non-hierarchical August 23, 2009 31
  32. 32. Web 2.0 contd… Web tools :- A. Social book marking -effective tool for teaching/ learning activities B. Blogs C. Wiki D. RSS/ Forum/ alerting services August 23, 2009 32
  33. 33. A. Social Book marking -Founded by Joshu Schachter in 2003 - It is a practice of saving book mark to a public website & tagging them with keywords - These are just annotated URLs Uses  Accessibility - web based storage  Organisation - keyword/ tagging August 23, 2009 33
  34. 34. Social Book marking contd…  Collaboration - students, friends, professional community etc. Assignment- to consult book marked resource  Same sources for further use  Keep tract on the new development  Personal archive  Privacy August 23, 2009 34
  35. 35. Social Book marking Vs favorite  save on the Internet Only in one computer i.e. Millions of computers  Tagged resources will No such facility, added remain same even if resource deleted ones the website changes system get formatted.  Tagged resources shared Not shared  Access by anybody at anytime Inaccessible from From anywhere remote location August 23, 2009 35
  36. 36. Social Book marking contd. Example: - Connotea (a free online reference management service for scientists, researchers, and clinicians. It facilitates to organise, share and discover the online resources.) - citeUlike (a free service for managing & discovering scholarly references. It helps to store, share and discover new articles and resources) - FURL : we can archive entire WebPages - Del.icio.us August 23, 2009 36
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  39. 39. Delicious -It is a social bookmarking service that allows users to tag, save, manage and share resources on the Internet. Delicious - Integrative approach to sharing, teaching and learning. August 23, 2009 39
  40. 40. Delicious contd… Why should we use social book marking? We have already discussed for the need of it. Generally, we come across the problem like: -Unable to access relevant resources. - difficult to access the same resources. August 23, 2009 40
  41. 41. Delicious contd… What can we do?  Book mark any site on the Internet, and get to it from anywhere, at anytime and by anybody.  Share book marks and get book marks in return.  Store and discover the most useful book mark on the web  Install button in browser August 23, 2009 41
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  44. 44. B. Blogs - Web logs in short “blog” - Named by John Barger - These are web service that allow us to submit/ post our thoughts, events for others to read - so, it is a way of conveying information instantly to the community/ world. Example: Blogger, Livejournal etc. August 23, 2009 44
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  48. 48. C. Wiki - Ward Cunniggham invented in 1995 - It is a type of website that allows us to add and edit content and suited for constructive & collaborative authoring. - Example: Wikipedia (a freely licensed, freely copy, encyclopedia contributed by thousand of volunteers & run by Wikimedia Foundation) - good tool for collaborative assignments - http://wiki.ieee-earth.org August 23, 2009 48
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  50. 50. D. Really Simple Syndication (RSS) - Also known as Rich Site Summary - Make easy for one website to include a list of headlines from another site i. e. syndication. - Advantage: i. Scan multiple sites from one place. ii. Update itself with the latest items. iii. Scan only feeds of interest August 23, 2009 50
  51. 51.  Delicious login Demonstration Thank You August 23, 2009 51
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