| Presentation | 2022-06-28 Toward the Design of a Hybrid Algorithm of Asymmetries and Score-Based Methods in Causal Search Kota Misaki, Shin Matsushima, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | There is a high demand for understanding causal relationships among multiple factors in the social and natural sciences. To explore such causal relationships, experiments called randomized controlled trials (Randomized Controlled Trial, RCT) are sometimes conducted, which can be difficult to conduct from financial and ethical perspectives. \In such cases, methods have been proposed to perform statistical causal inference using only observational data without intervention, such as GES (Chickering, 2002), LiNGAM (Shimizu et al., 2006, Shimizu et al., 2011), NO TEARS (Zheng et al., 2018) are examples of them.\In this study, among them, for Direct LiNGAM (Shimizu et al., 2011), we introduced the idea of replacing a causal inference problem like NO TEARS with mathematical optimization and formulated the objective function of Direct LiNGAM. Furthermore, we improved the objective function in a way that solves the problems identified in the formulation. The results obtained by optimizing the objective function more rigorously outperformed those obtained by conventional Direct LiNGAM in terms of accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Causal discovery / Direct LiNGAM / NO TEARS |
| Paper # | NC2022-20,IBISML2022-20 |
| Date of Issue | 2022-06-20 (NC, IBISML) |
| Conference Information | |
| Committee | NC / IBISML / IPSJ-BIO / IPSJ-MPS |
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| Conference Date | 2022/6/27(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroshi Yamakawa(Univ of Tokyo) / Masashi Sugiyama(Univ. of Tokyo) |
| Vice Chair | Hirokazu Tanaka(Tokyo City Univ.) / Toshihiro Kamishima(AIST) / Koji Tsuda(Univ. of Tokyo) |
| Secretary | Hirokazu Tanaka(NTT) / Toshihiro Kamishima(NICT) / Koji Tsuda(NTT) / (Hokkaido Univ.) |
| Assistant | Yoshimasa Tawatsuji(Waseda Univ.) / Tomoki Kurikawa(KMU) / Yoshinobu Kawahara(Osaka Univ.) / Taiji Suzuki(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Neurocomputing / Technical Committee on Infomation-Based Induction Sciences and Machine Learning / Special Interest Group on Bioinformatics and Genomics / Special Interest Group on Mathematical Modeling and Problem Solving |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Toward the Design of a Hybrid Algorithm of Asymmetries and Score-Based Methods in Causal Search |
| Sub Title (in English) | |
| Keyword(1) | Causal discovery |
| Keyword(2) | Direct LiNGAM |
| Keyword(3) | NO TEARS |
| 1st Author's Name | Kota Misaki |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Shin Matsushima |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2022-06-28 |
| Paper # | NC2022-20,IBISML2022-20 |
| Volume (vol) | vol.122 |
| Number (no) | NC-89,IBISML-90 |
| Page | pp.pp.143-148(NC), pp.143-148(IBISML), |
| #Pages | 6 |
| Date of Issue | 2022-06-20 (NC, IBISML) |