The Encyclopedia of Algorithms will provide a comprehensive set of solutions to important algorithmic problems for students and researchers interested in quickly locating useful information. The first edition of the reference will focus on high-impact solutions from the most recent decade; later editions will widen the scope of the work. Nearly 500 entries will be organized alphabetically by problem, with subentries allowing for distinct solutions and special cases to be listed by the year. An entry will include: a description of the basic algorithmic problem the input and output specifications the key results examples of applications citations to the key literature Open problems, links to downloadable code, experimental results, data sets, and illustrations may be provided. All entries will be written by experts; links to Internet sites that outline their research work will also be provided. The entries will be peer-reviewed. This defining reference will be published in print and on line. The print publication will include an index of subjects and authors as well as a chronology for locating recent solutions. The online edition will supplement this index with hyperlinks as well as include hyperlinks in the text of the entries to related entries, xRefer citations, and other useful URLs mentioned above.