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Updated: Jun 29, 2026
06:38
Pattern-based Search of Epigenomic Data Using GeNemo
Published on: October 8, 2017
GEOmetadb: powerful alternative search engine for the Gene Expression Omnibus
Yuelin Zhu1, Sean Davis, Robert Stephens
1Genetics Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Bioinformatics (Oxford, England)
|October 10, 2008
Summary
GEOmetadb simplifies accessing the Gene Expression Omnibus (GEO) database. This tool provides powerful querying of GEO metadata through a web interface and R package.
Area of Science:
- Bioinformatics
- Genomics
- Data Science
Background:
- The Gene Expression Omnibus (GEO) is a major public repository for microarray data.
- Discovering specific datasets within GEO can be difficult due to its large scale.
Purpose of the Study:
- To develop an enhanced system for querying and accessing GEO metadata.
- To provide more powerful and flexible data retrieval than existing NCBI tools.
Main Methods:
- Parsed and stored all GEO metadata and relationships in a local MySQL database.
- Developed a web search interface for querying the GEOmetadb.
- Created a Bioconductor package utilizing a SQLite export for R users.
Main Results:
- GEOmetadb offers advanced query capabilities not available through NCBI.
- The system facilitates easier and more powerful access to GEO metadata.
- Both web interface and R package provide robust SQL-based query access.
Conclusions:
- GEOmetadb significantly improves the accessibility and usability of GEO data.
- This tool empowers researchers to more effectively leverage public microarray data.
- Facilitates advanced data mining and analysis of genomic information.
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