Transcript Library

Rashid Medical Library
OvidSP: the new platform
Bakheet Beshtawy
Systems Librarian
OvidSP
Ovid Technologies:
• Provider of electronic medical, scientific, and
•
•
•
•
•
academic research information solutions
Founded in 1988
2001: Ovid merged with Silver Platter
More than 200 bibliographic databases in Science,
Technology, General Academic and Medicine
More than 1,200 electronic journals
More than 700 electronic books
OvidSP
OvidSP:
• A new platform Lunched October 25th 2007
• Searching and using the results easier and more
efficient
• Natural language searching
• Relevance ranking of results
OvidSP
Database searching: Refine your search with
Boolean Logic (AND OR NOT)
• When you need to Narrow your search, reducing
the number of items returned by the database,
one method is to make your search more specific
by adding search terms to the original. These
terms are combined with AND
Specificity
OvidSP
Database searching: Refine your search with
Boolean Logic (AND OR NOT)
• When you need to Broaden your search, rising
the number of items returned by the database,
one method is to make your search more
sensitive by adding synonyms to the original.
These terms are combined with OR.
Sensitivity
OvidSP
How does OvidSP Basic Search work?
With Basic Search, simply enter a search term or ask a question in
ordinary, everyday English terms
1. OvidSP filters the terms of your query, eliminating
irrelevant noise words and convert it into validated
search terms/phrases. Example:
Search Query
OvidSP Validated
Terms/Phrases
weather related migraine
weather
migraine
OvidSP
2. OvidSP expands the validated terms to include:
•
•
Word variations
Strong synonyms (such as alternate names of drugs or
diseases)
• Acronyms
• Alternative spellings
Unified Medical Language System [UMLS] Meta-thesaurus, medical
dictionaries and thesauri, medical acronyms, drug and disease names,
and standard American and British English dictionaries
OvidSP
3. OvidSP analyzes the validated terms to identify the nouns,
noun phrases, and adjectives then incorporate them into
an overall, expanded search strategy
OvidSP Validated Terms
OvidSP Expanded (Sensitivity)
weather
weathers OR weather
migraine
(hemicrania OR migraines OR anencephalies partial OR
anencephaly hemicranial OR anencephaly incomplete OR
anencephaly partial OR headache migraine OR headaches
migraine OR hemicranial anencephaly OR incomplete
anencephaly OR incomplete anencephaly hemicrania OR
migraine headache OR migraine headaches OR migraine
unspecified OR partial anencephalies OR partial anencephaly)
OvidSP
4. OvidSP then executes searches using these
expansions with relevancy-ranked results
Thank you
Bakheet Beshatwy
[email protected]
04-219-1908