RT Conference Proceedings T1 Fuzzy Fine-grained Code-history Analysis A1 Servant-Cortés, Francisco Javier A1 Jones, James A. K1 Programación informática/desarrollo de software AB Existing software-history techniques represent source-code evolution as an absolute and unambiguous mapping of lines of code in prior revisions to lines of code in subsequent revisions. However, the true evolutionary lineage of a line of code is often complex, subjective, and ambiguous. As such, existing techniques are predisposed to, both, overestimate and underestimate true evolution lineage. In this paper, we seek to address these issues by providing a more expressive model of code evolution, the fuzzy history graph, by representing code lineage as a continuous (i.e., fuzzy) metric rather than a discrete (i.e., absolute) one. Using this more descriptive model, we additionally provide a novel multi-revision code-history analysis — fuzzy history slicing. In our experiments over three real-world softwaresystems, we found that the fuzzy history graph provides a tunable balance of precision and recall, and an overall improved accuracy over existing code-evolution models. Furthermore, we found that the use of such a fuzzy model of history provided improved accuracy for code-history analysis tasks. YR 2017 FD 2017 LK https://hdl.handle.net/10630/34699 UL https://hdl.handle.net/10630/34699 LA eng NO F. Servant and J. A. Jones, "Fuzzy Fine-Grained Code-History Analysis," 2017 IEEE/ACM 39th International Conference on Software Engineering (ICSE), Buenos Aires, Argentina, 2017, pp. 746-757, doi: https://doi.org/10.1109/ICSE.2017.74 NO This work is supported by the National Science Foundation under award CAREER CCF-1350837. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 20 ene 2026