Web Resources in Dravyagunavignan Advanced Internet Search Sanjeev

Web Resources in Dravyagunavignan

Advanced Internet Search Sanjeev. P

INTERNET USES ü E-mail ü Shareware and freeware ü Search online databases üBrowse /Surf ü Chat üE-journals, E-books ü E-commerce / E-trade ü Online banking

üInternet Telephony (Vo. IP) üVideo Conferencing üBlogs (Discussion groups or newsgroups) üInternet Radio üVideo conferencing üTELNET üGOPHER üFTP And many more………

E-MAILS ORDINARY -2 Kb (approx. 1 page plain text) • Time taken to send the mail- 1. 83 seconds Øin ordinary PSTN Line, speed @9. 6 KBps In broad band connectivity the bandwidth is very high and emailing is very fast (ATTACHMENTS) 20 pages mail 1 graphic image 1 min. audio 1 min. video- 44 Kb 330 Kb 475 Kb 2400 Kb

SHAREWARES & FREEWARES SHAREWARES ARE SOFTWARES AVAILABLE IN THE INTERNET. WE CAN USE IT FOR A PERIOD. FREEWARES ARE FREE DOWNLOADABLE SOFTWARES AVAILABLE IN THE INTERNET. Many utility softwares are available in the Internet etc… Eg. download. com, tucows. com, 4 shared. com

E-COMMERCE • COMMERCE THROUGH INTERNET USING CREDIT CARDS OR SOME OTHER METHODS like COD (Online Purchase is cheaper and its very popular now)

CHAT • ALMOST LIKE E-MAILS---BUT CHATTING IS LIVE • VOICE CHATTING • INTERNET TELEPHONY USING SOFTWARES(VOIP) USING MIC , HEADPHONES AND WEBCAM Yahoo chat, Msn messenger, Google talk are Chat Programmes (POPULAR AMONG YOUNGER GENERATION IN INTERNET CAFÉS)

Sources on Internet • • Almanacs (annual book of months and dates) Audio Bibliographical Tools Books Maps CD-ROM Conference Proceedings Cont. d…

Sources on Internet • Companies, Institutions, Organizations, Associations etc. • Databases • Debate • Dictionaries • Directories • Discussions • E-journals Cont. d…

Sources on Internet • • E-Mail contact Encyclopedia Events Fact books Films Graph, chart, diagram, table Related Web Sites Interview Contd…

Sources on Internet • Library catalogue • Magazine • Newspaper • Observation of object (animate and inanimate) • Patents • Person Contd…

Sources on Internet • • Preprints Reference Material Software Standards Survey reports Technical reports Video Tape Etc. . etc…

Who Creates Information? • Individuals • Institutions • Publishers • Professional Associations • Business houses • And many others…

Searcher Categories • Searchers/Users fall into 4 basic categories: –Technophobes –Grudge Users –Acceptors –Technophiles

Technophobes (those fear or hate technology) They get someone else to do it for them or avoid it “I’m too old”, “It’s too hard”

Grudge Users They use those applications they have to use for their work only

Acceptors They use technology ü to solve problems ü to answer questions ü find easy techniques to make their life easier

Technophiles They integrate technology into their daily lives, use it whenever they can and help others with their technology needs

Reasons for Searching • Personal Need • Professional Need • Response to an Inquiry • Confirm facts/ information • Entertainment …. . and many more

Internet Search

MILLIONS OF COMPUTERS ARE CONNECTED TO FIND OUT THE RIGHT INFORMATION IS LIKE SEARCHING FOR A LOST NEEDLE IN A HEYSTALK

http: //www. internetlivestats. com/one-second/ October 3, 2016 8. 45 am

NAVIGATORS/BROWSERS THE FIRST TOOL TO SEARCH THE INTERNET IS THE BROWSER THE COMMON BROWSERS ARE –INTERNET EXPLORER, Microsoft Edge exclusively on Windows 10. –CHROME - GOOGLE –SAFARI - APPLE –FIREFOX –OPERA THESE BROWSERS ARE DOWNLOADABLE PROGRAMMES

Browsers

RESOURCE DISCOVERY TOOLS • SUBJECT INDEXES/DIRECTORIES • SEARCH ENGINES • METASEARCH ENGINES

SUBJECT INDEXES/ DIRECTORIES

SUBJECT INDEXES or DIRECTORIES Ø Browsing the subject categories Ø Display under the categories with brief description Ø Provide better results Ø Not very comprehensive Ø Maintained by editors. They review and select sites and put into the directories on the basis of previously determined criteria. Ø Smaller DB, Fewer results, Higher quality Eg. MEDSCAPE MEDICAL HEALTH DIRECTORY Looksmart. com

DIRECTORY SEARCH for PEREGRINE ØANIMALS ØCHORDATES ØVERTEBRATES ØBIRDS ØRAPTORS ØFALCONS ØPEREGRINE

SEARCH ENGINES Individual SE’s Meta SE’s

Search engines-Individual Search engines are huge databases of web page files that have been collected automatically by machine using Spiders/crawlers/bots

SEARCH ENGINES

Medical search engines • • • • Web. MD Pub. Med Bing Health. Bioinformatic Harvester Cite. Ab (antibody search engine for medical researchers) EB-eye EMBL-EBI's Search engine Entrez (includes Pubmed) Genie. Knows Healia Healthline Nextbio (Life Science Search Engine) Pub. Gene Quertle (biomedical literature) Searchmedica

Meta search engines do not compile databases. Instead, they search multiple search engines simultaneously to gather the results.

Meta search engines • DOGPILE • SAVYSEARCH • ASKJEEVES • CHUBBA • IXQUICK

MAIN STEPS IN CONDUCTNG SEARCHES üTRANSLATE THE SEARCH QUERRY INTO SEARCH TERMS/KEYWORDS üCOMBINING SEARCH TERMS üEXAMINING RESULTS üRE SEARCHING IF NEEDED

KEYWORDS, CONTROLLED VOCABULARY, FACETS

Keywords • Me. SH (Medical Subject Headings) is the NLM controlled vocabulary thesaurus used for indexing articles for Pub. Med • Sears list of Subject Headings

ü TRANSLATING THE SEARCH QUERRY Eg. I want literature on hepatoprotective ayurvedic medicines (BREAK THE SEARCH REQUESTS TO INDIVIDUAL FACETS / TERMS 1) hepatoprotective 2) ayurvedic 3) medicines Never use conjunctions, articles, pronouns, prepositions ü FIND OUT ANY TERMS REQUIRED SYNONYMS Eg. Hepatoprotection, liver protection etc. Ayurvedic (herbal medicine)

Eg. I want articles on liver protective medicines in Ayurveda Liver protective , hepato protective, Ayurvedic medicine, herbal medicine, alternative medicine, journal articles, periodical articles, peer reviewed articles, high impact factor articles

Similar search terms • ayurvedic medicines for hepato protection • hepatoprotective herbal drugs • hepato protective plants • hepatoprotection and ayurveda • Hepato-protective

COMBINING SEARCH TERMS • PHRASE SEARCHING • BOOLEAN - SEARCHING(LOGICAL OPERATORS) • PSUEDO BOOLEAN

Spellings –Google count) Ayurved About 27, 50, 000 results (0. 58 seconds) Ayurveda About 3, 31, 000 results (0. 54 seconds) Ayurvedic About 2, 93, 000 results (0. 52 seconds)

Yahoo DOCUMENT COUNTS ayurveda 9, 220, 000 results ayurved 596, 000 results ayurvedic 9, 220, 000 results

SYNONYMS For, eg. take the concept of “ayurveda". • Ayurveda Some counts from Google - About 2, 93, 000 results (0. 43 seconds) • Ayurved - About 3, 31, 000 results (0. 61 seconds) • Herbal medicine - About 87, 70, 000 results (0. 79 seconds) • Alternative medicine - About 2, 24, 000 results (0. 66 seconds) • Plant medicine - About 18, 90, 000 results (0. 85 seconds) • Indian medicine - About 14, 80, 000 results (0. 80 seconds)

Truncation Ayurved*- 27, 80, 000 results The truncation * symbol covers Ayurveda Ayurvedic etc

BOOLEAN SEARCHING THE COMMON B. OPERATORS ARE AND OR NOT AND --- BOTH TERMS OR --- EITHER TERMS NOT --- COMBINATION OF TERMS

EXAMPLE OF “OR” OPERATOR

EXAMPLE OF “AND” OPERATOR

EXAMPLE OF “NOT” OPERATOR ayurvedic medicines NOT modern medicines*

PSEUDO-BOOLEAN USING SYMBOLS INSTEAD OF OPERATORS Eg. + for and - for not

(Hepatoprotective or liver protective) and (ayurvedic or herbal medicine or plant medicine) 53800 results

(only pdf) hepatoprotective filetype: pdf About 1, 24, 000 results (0. 24 seconds) (only word files) hepatoprotective filetype: doc About 2, 040 results (0. 43 seconds)

“hepatoprotective ayurvedic drugs” - 476 results Hepatoprotective - 6, 93, 000 results Liver protective – 3, 36, 000 results

Good search engines • • • ojose. com/historyindex. html ixquick. com oaister. com teoma. com BASE - Bielefeld Academic Search Engine

googling

Evaluating Information from Internet • Printed materials have already been evaluated by scholars, publishers and librarians. • Every resource we find has been evaluated in one way or another before you ever see it.

• But in World Wide Web, none of this applies. • There are no filters and anyone can write a Web page and register a cite in Internet

Criteria to assess information found on the Internet. • • • Authorship Publishing body Point of view or bias Referral to other sources Verifiability Currency

Authorship • Who wrote this? • The author's position, institutional affiliation and address

Publishing body • Is the name of any organization given on the document • Are there headers, footers, or a distinctive watermark that show the document? • Is the organization recognized in the field? • Can we ascertain the relationship of the author and the publisher/server? • Was the document prepared as part of the author’s professional duties ? • Can we verify the identity of the server where the document resides? Internet programs such dnslookup and whois will be of help.

Point of view • Point of view or bias reminds us that information is rarely neutral

Accuracy or verifiability • explanation of the research method(s) used to gather and interpret it are included. • methodology outlined in the document is appropriate to the topic • non- published data used in the preparation of the study. • background information that was used can be verified for accuracy.

Currency (timeliness of information) • includes the date(s) at which the information was gathered • includes a publication date or a "last updated" date. • includes a date of copyright

Drawbacks of Internet Thinking all the information you want will be on the Internet • Wasting time with inefficient search strategies • Losing valuable sites because you forgot to add them to your "Bookmarks" or "Favorites“ • Paying money for something you could have got free

NUTSHELL Ø Develop a search strategy. Assess whether Internet is the best place to look for the type of information you need. Ø Find out if our library subscribes to any fee paying Internet services in your subject area, such as full text electronic journals or online databases. Ø Try searching in the early morning and evening to avoid heavy Internet traffic. Ø If an Internet link does not work on our first attempt check that we have entered the details correctly. Ø Enter just the root of the address http: //www. fao. org/ instead of http: //www. fao. org/forestry/fo/country/nav_world. jsp/

Conclusion ü Information is growing exponentially ü Rapidly growing Internet-based content ü Identifying relevant resources is a major problem ü Searching information on the Internet is a complex process ü Poor quality searches – information overload ü Organizing skill is required ü Uncertainty about the quality

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