S. P. de Jong. Combining of changes to a source file. IBM Technical Disclosure Bulletin, 15(4):1186-- 1188, September 1972.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....is lost when writing a larger delta file out to storage. 2 Related Work Encoding versions of data compactly by detecting altered regions of data is a well known problem. The first applications of delta compression found changed lines in text data for analyzing the recent modifications to files [11]. Considering data as lines of text fails to encode minimum sized delta files, as it does not examine data at a fine granularity and finds only matching data that are aligned at the beginning of a new line. The problem of representing the changes between versions of data was formalized as ....

S. P. de Jong. Combining of changes to a source file. IBM Technical Disclosure Bulletin, 15(4):1186-- 1188, September 1972.

....the new version. In the presence of the reference version, the delta encoding can be used to rebuild or materialize the new version. The first applications using differencing algorithms took two versions of text data as input, and gave as output those lines that changed between versions [7]. Software developers and other authors used this information to control modifications to large documents and to understand the fashion in which data changed. An obvious extension to this text differencing system was to use the output of the algorithm to update an old (reference) version to the ....

S. P. de Jong. Combining of changes to a source file. IBM Technical Disclosure Bulletin, 15(4):1186-- 1188, September 1972.

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