| Presentation | 2015-10-14 Memoization Refactoring based on Purity Analysis Jiachen Yang, Keisuke Hotta, Yoshiki Higo, Shinji Kusumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Memoization refactoring is a refactoring pattern that caches the result of a given function and returns the same result when the function gets called afterward with the same set of arguments. The purpose of this refactoring is to reduce duplicated calculations and trade the CPU time with the memory usage. Traditionally it is tricky to apply this refactoring manually, as the return value of the function may depend on internal states that may change between the function calls. This largely prevents the programmers from adopting the Memoization refactoring. In this research, we will propose an approach to apply the Memoization refactoring on Java member methods, by using detailed side-effects information about the target method that gathered from a purity analysis tool called purano. We practised the soundness of our approach on open-source Java libraries and observed improvements in performance and preservation of semantics by running a profiler on the bundled test cases on these libraries. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | memoization refactoringpurity analysisstatic analysis |
| Paper # | SS2015-43,DC2015-33 |
| Date of Issue | 2015-10-06 (SS, DC) |
| Conference Information | |
| Committee | DC / SS |
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| Conference Date | 2015/10/13(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Todaiji Culture Center (Nara) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Software System, Dependability in Network |
| Chair | Nobuyasu Kanekawa(Hitachi) / Shoji Yuen(Nagoya Univ.) |
| Vice Chair | Michiko Inoue(NAIST) / Kazuhiro Ogata(JAIST) |
| Secretary | Michiko Inoue(RTRI) / Kazuhiro Ogata(Kyoto Sangyo Univ.) |
| Assistant | / Yoshiki Higo(Osaka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Dependable Computing / Technical Committee on Software Science |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Memoization Refactoring based on Purity Analysis |
| Sub Title (in English) | |
| Keyword(1) | memoization refactoringpurity analysisstatic analysis |
| 1st Author's Name | Jiachen Yang |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Keisuke Hotta |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Yoshiki Higo |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Shinji Kusumoto |
| 4th Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2015-10-14 |
| Paper # | SS2015-43,DC2015-33 |
| Volume (vol) | vol.115 |
| Number (no) | SS-248,DC-249 |
| Page | pp.pp.47-52(SS), pp.47-52(DC), |
| #Pages | 6 |
| Date of Issue | 2015-10-06 (SS, DC) |