OReFiL stands for Online Resource Finder for Lifescience. It facilitates a search for online resources that are introduced in peer-reviewed papers. You can search by MeSH terms or author names in addition to free words. OReFiL extracts all URLs from MEDLINE abstracts and PubMed-indexed BioMed Central full-papers (implementation or availability sections), and indexes them with MeSH terms and author names.
- OReFiL returns up-to-date query-relevant online resources that is introduced in peer-reviewed papers.
- Users can search for online resources not only by free words, but also by MeSH terms or author names.
- Users can easily verify each hit resource by following the links to its corresponding PubMed entry, webpages having a link to that of the hit resource, or papers citing it through the search systems of BioMed Central, Scirus, HighWire Press, or Google Scholar.
- Users can quickly confirm the existence of an online resource webpage.
Query can be any keywords.
Each keyword can be modified to specify a context by adding the following modifiers after it:
- .tiab for titles and abstracts (e.g.,apoptosis.tiab),
- .auth for author names, and
- .mesh / .majr / .noexp for MeSH terms.
- A multiword keyword can be expressed using the #1 operator with parentheses such as #1(text mining) or #1(Sequence Analysis).
- Boolean "AND" operator can be used using the #band operator with parentheses such as #band(pathway apoptosis).
- Boolean-AND-like language-model-based search can be done using the #filreq operator with parentheses such as #filreq(Software.noexp #1(sequence analysis)). In this example, OReFiL only considers those resources whose MEDLINE entries have the MeSH term "Software" and rank them according to the query #1(sequence analysis).
- Punctuations are ignored. So, "Databases, Protein" and "Databases Protein" are identical.
- Non-alpha-numericals except for query operations are ignored. For example, "Variation (Genetics)" and "Variation Genetics" are identical.
- Detailed usage of this system can be learned at this video tutorial.
- This system uses Lemur Toolkit (Indri), and the query language can be learned here.
Detailed information of this system can be found at
BMC Bioinformatics 2007, 8:287.
Last index update: Feb 14, 2017