SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Computer Languages, Systems and Structures welcomes papers on all aspects of the design, implementation and use of computer languages (specification, modeling and programming) from theory to practice." Topics covered include compilers and interpreters; type systems; specification and verification; semantics; program analysis and optimization; language-based security; domain-specific languages; concurrent, distributed and parallel programming; memory management; programming patterns and structures; support for modularity in program construction; software language engineering, programming environments and tools, and the application of programming language ideas to describe and reason about natural or man-made systems. Most papers describe original technical research, but the journal also welcomes empirical studies and survey articles.
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