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An investigation of why overparameterization exacerbates spurious correlations

Minority STEM

Raghunathan A, Sagawa S.
GSID: Eh-R4_4CIl4J
S Sagawa, A Raghunathan… - … on Machine Learning, 2020 - proceedings.mlr.press

… First, the only differences between groups stem from their differences in (y, a), which … features and simply memorizing the minority groups to get zero training error, consistent with our …

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Sagawa, S., Raghunathan, A., Koh, P. W., & Liang, P. (2020, November). An investigation of why overparameterization exacerbates spurious correlations. In International Conference on Machine Learning (pp. 8346-8356). PMLR.
Sagawa, Shiori, et al. "An investigation of why overparameterization exacerbates spurious correlations." International Conference on Machine Learning. PMLR, 2020.
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[Round table conference: our first year of nursing].

Kangogaku zasshi

Sugiura A, Kawashima M, Sagawa M, Wakatsuki Y, Hirai S.
PMID: 4969721
Kangogaku Zasshi. 1968 Mar;32(3):44-8.

No abstract available.

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Sugiura A, Kawashima M, Sagawa M, et al. [Round table conference: our first year of nursing]. Kangogaku Zasshi. 1968;32(3):44-8
Sugiura, A., Kawashima, M., Sagawa, M., Wakatsuki, Y., & Hirai, S. (1968). [Round table conference: our first year of nursing]. Kangogaku zasshi, 32(3), 44-8.
Sugiura, A, et al. "[Round table conference: our first year of nursing]." Kangogaku zasshi vol. 32,3 (1968): 44-8.
Sugiura A, Kawashima M, Sagawa M, Wakatsuki Y, Hirai S. [Round table conference: our first year of nursing]. Kangogaku Zasshi. 1968 Mar;32(3):44-8. Japanese. PMID: 4969721.
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Enhancement of the hole conducting effect of NiO by a N.

Nanoscale

Peiris TAN, Baranwal AK, Kanda H, Fukumoto S, Kanaya S, Cojocaru L, Bessho T, Miyasaka T, Segawa H, Ito S.
PMID: 28426040
Nanoscale. 2017 May 04;9(17):5475-5482. doi: 10.1039/c7nr00372b.

In this article, we demonstrate for the first time a mesoscopic printable perovskite solar cell (PSC) using NiO as the hole transporting material and low-temperature processed carbon as the counter electrode. A single deposition method assisted by N

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Peiris TAN, Baranwal AK, Kanda H, et al. Enhancement of the hole conducting effect of NiO by a N. Nanoscale. 2017;9(17):5475-5482doi: 10.1039/c7nr00372b.
Peiris, T. A. N., Baranwal, A. K., Kanda, H., Fukumoto, S., Kanaya, S., Cojocaru, L., Bessho, T., Miyasaka, T., Segawa, H., & Ito, S. (2017). Enhancement of the hole conducting effect of NiO by a N. Nanoscale, 9(17), 5475-5482. https://doi.org/10.1039/c7nr00372b
Peiris, T A Nirmal, et al. "Enhancement of the hole conducting effect of NiO by a N." Nanoscale vol. 9,17 (2017): 5475-5482. doi: https://doi.org/10.1039/c7nr00372b
Peiris TAN, Baranwal AK, Kanda H, Fukumoto S, Kanaya S, Cojocaru L, Bessho T, Miyasaka T, Segawa H, Ito S. Enhancement of the hole conducting effect of NiO by a N. Nanoscale. 2017 May 04;9(17):5475-5482. doi: 10.1039/c7nr00372b. PMID: 28426040.
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Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case report.

Surgical case reports

Takahashi K, Ito H, Katsube T, Tsuboi A, Hashimoto M, Ota E, Mita K, Asakawa H, Hayashi T, Fujino K, Okamoto S.
PMID: 26943444
Surg Case Rep. 2015 Dec;1(1):120. doi: 10.1186/s40792-015-0123-4. Epub 2015 Dec 03.

Immunoglobulin G4 (IgG4)-related sclerosing disease is a systemic inflammatory syndrome, and an understanding of its characteristics is currently evolving. IgG4-related cholecystitis is a manifestation of IgG4-related sclerosing disease in the gallbladder. This case report describes the clinical, radiographic, and...

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Takahashi K, Ito H, Katsube T, et al. Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case report. Surg Case Rep. 2015;1(1):120doi: 10.1186/s40792-015-0123-4.
Takahashi, K., Ito, H., Katsube, T., Tsuboi, A., Hashimoto, M., Ota, E., Mita, K., Asakawa, H., Hayashi, T., Fujino, K., & Okamoto, S. (2015). Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case report. Surgical case reports, 1(1), 120. https://doi.org/10.1186/s40792-015-0123-4
Takahashi, Kodai, et al. "Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case report." Surgical case reports vol. 1,1 (2015): 120. doi: https://doi.org/10.1186/s40792-015-0123-4
Takahashi K, Ito H, Katsube T, Tsuboi A, Hashimoto M, Ota E, Mita K, Asakawa H, Hayashi T, Fujino K, Okamoto S. Immunoglobulin G4-related sclerosing cholecystitis presenting as gallbladder cancer: a case report. Surg Case Rep. 2015 Dec;1(1):120. doi: 10.1186/s40792-015-0123-4. Epub 2015 Dec 03. PMID: 26943444; PMCID: PMC4668245.
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Practical and highly sensitive elemental analysis for aqueous samples containing metal impurities employing electrodeposition on indium-tin oxide film samples and laser-induced shock wave plasma in low-pressure helium gas.

Applied optics

Kurniawan KH, Pardede M, Hedwig R, Abdulmadjid SN, Lahna K, Idris N, Jobiliong E, Suyanto H, Suliyanti MM, Tjia MO, Lie TJ, Lie ZS, Kurniawan DP, Kagawa K.
PMID: 26368882
Appl Opt. 2015 Sep 01;54(25):7592-7. doi: 10.1364/AO.54.007592.

We have conducted an experimental study exploring the possible application of laser-induced breakdown spectroscopy (LIBS) for practical and highly sensitive detection of metal impurities in water. The spectrochemical measurements were carried out by means of a 355 nm Nd-YAG...

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Kurniawan KH, Pardede M, Hedwig R, et al. Practical and highly sensitive elemental analysis for aqueous samples containing metal impurities employing electrodeposition on indium-tin oxide film samples and laser-induced shock wave plasma in low-pressure helium gas. Appl Opt. 2015;54(25):7592-7doi: 10.1364/AO.54.007592.
Kurniawan, K. H., Pardede, M., Hedwig, R., Abdulmadjid, S. N., Lahna, K., Idris, N., Jobiliong, E., Suyanto, H., Suliyanti, M. M., Tjia, M. O., Lie, T. J., Lie, Z. S., Kurniawan, D. P., & Kagawa, K. (2015). Practical and highly sensitive elemental analysis for aqueous samples containing metal impurities employing electrodeposition on indium-tin oxide film samples and laser-induced shock wave plasma in low-pressure helium gas. Applied optics, 54(25), 7592-7. https://doi.org/10.1364/AO.54.007592
Kurniawan, Koo Hendrik, et al. "Practical and highly sensitive elemental analysis for aqueous samples containing metal impurities employing electrodeposition on indium-tin oxide film samples and laser-induced shock wave plasma in low-pressure helium gas." Applied optics vol. 54,25 (2015): 7592-7. doi: https://doi.org/10.1364/AO.54.007592
Kurniawan KH, Pardede M, Hedwig R, Abdulmadjid SN, Lahna K, Idris N, Jobiliong E, Suyanto H, Suliyanti MM, Tjia MO, Lie TJ, Lie ZS, Kurniawan DP, Kagawa K. Practical and highly sensitive elemental analysis for aqueous samples containing metal impurities employing electrodeposition on indium-tin oxide film samples and laser-induced shock wave plasma in low-pressure helium gas. Appl Opt. 2015 Sep 01;54(25):7592-7. doi: 10.1364/AO.54.007592. PMID: 26368882.
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Determination of unique power conversion efficiency of solar cell showing hysteresis in the I-V curve under various light intensities.

Scientific reports

Cojocaru L, Uchida S, Tamaki K, Jayaweera PVV, Kaneko S, Nakazaki J, Kubo T, Segawa H.
PMID: 28924166
Sci Rep. 2017 Sep 18;7(1):11790. doi: 10.1038/s41598-017-10953-3.

Energy harvesting at low light intensities has recently attracted a great deal of attention of perovskite solar cells (PSCs) which are regarded as promising candidate for indoor application. Anomalous hysteresis of the PSCs a complex issue for reliable evaluation...

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Cojocaru L, Uchida S, Tamaki K, et al. Determination of unique power conversion efficiency of solar cell showing hysteresis in the I-V curve under various light intensities. Sci Rep. 2017;7(1):11790doi: 10.1038/s41598-017-10953-3.
Cojocaru, L., Uchida, S., Tamaki, K., Jayaweera, P. V. V., Kaneko, S., Nakazaki, J., Kubo, T., & Segawa, H. (2017). Determination of unique power conversion efficiency of solar cell showing hysteresis in the I-V curve under various light intensities. Scientific reports, 7(1), 11790. https://doi.org/10.1038/s41598-017-10953-3
Cojocaru, Ludmila, et al. "Determination of unique power conversion efficiency of solar cell showing hysteresis in the I-V curve under various light intensities." Scientific reports vol. 7,1 (2017): 11790. doi: https://doi.org/10.1038/s41598-017-10953-3
Cojocaru L, Uchida S, Tamaki K, Jayaweera PVV, Kaneko S, Nakazaki J, Kubo T, Segawa H. Determination of unique power conversion efficiency of solar cell showing hysteresis in the I-V curve under various light intensities. Sci Rep. 2017 Sep 18;7(1):11790. doi: 10.1038/s41598-017-10953-3. PMID: 28924166; PMCID: PMC5603576.
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Adjustment of Conduction Band Edge of Compact TiO.

ACS applied materials & interfaces

Murakami TN, Miyadera T, Funaki T, Cojocaru L, Kazaoui S, Chikamatsu M, Segawa H.
PMID: 28981252
ACS Appl Mater Interfaces. 2017 Oct 25;9(42):36708-36714. doi: 10.1021/acsami.7b07496. Epub 2017 Oct 16.

Perovskite solar cells (PSCs) without a mesoporous TiO

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Murakami TN, Miyadera T, Funaki T, et al. Adjustment of Conduction Band Edge of Compact TiO. ACS Appl Mater Interfaces. 2017;9(42):36708-36714doi: 10.1021/acsami.7b07496.
Murakami, T. N., Miyadera, T., Funaki, T., Cojocaru, L., Kazaoui, S., Chikamatsu, M., & Segawa, H. (2017). Adjustment of Conduction Band Edge of Compact TiO. ACS applied materials & interfaces, 9(42), 36708-36714. https://doi.org/10.1021/acsami.7b07496
Murakami, Takurou N, et al. "Adjustment of Conduction Band Edge of Compact TiO." ACS applied materials & interfaces vol. 9,42 (2017): 36708-36714. doi: https://doi.org/10.1021/acsami.7b07496
Murakami TN, Miyadera T, Funaki T, Cojocaru L, Kazaoui S, Chikamatsu M, Segawa H. Adjustment of Conduction Band Edge of Compact TiO. ACS Appl Mater Interfaces. 2017 Oct 25;9(42):36708-36714. doi: 10.1021/acsami.7b07496. Epub 2017 Oct 16. PMID: 28981252.
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Critical phenomena of emergent magnetic monopoles in a chiral magnet.

Nature communications

Kanazawa N, Nii Y, Zhang XX, Mishchenko AS, De Filippis G, Kagawa F, Iwasa Y, Nagaosa N, Tokura Y.
PMID: 27181484
Nat Commun. 2016 May 16;7:11622. doi: 10.1038/ncomms11622.

Second-order continuous phase transitions are characterized by symmetry breaking with order parameters. Topological orders of electrons, characterized by the topological index defined in momentum space, provide a distinct perspective for phase transitions, which are categorized as quantum phase transitions...

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Kanazawa N, Nii Y, Zhang XX, et al. Critical phenomena of emergent magnetic monopoles in a chiral magnet. Nat Commun. 2016;7:11622doi: 10.1038/ncomms11622.
Kanazawa, N., Nii, Y., Zhang, X. X., Mishchenko, A. S., De Filippis, G., Kagawa, F., Iwasa, Y., Nagaosa, N., & Tokura, Y. (2016). Critical phenomena of emergent magnetic monopoles in a chiral magnet. Nature communications, 711622. https://doi.org/10.1038/ncomms11622
Kanazawa, N, et al. "Critical phenomena of emergent magnetic monopoles in a chiral magnet." Nature communications vol. 7 (2016): 11622. doi: https://doi.org/10.1038/ncomms11622
Kanazawa N, Nii Y, Zhang XX, Mishchenko AS, De Filippis G, Kagawa F, Iwasa Y, Nagaosa N, Tokura Y. Critical phenomena of emergent magnetic monopoles in a chiral magnet. Nat Commun. 2016 May 16;7:11622. doi: 10.1038/ncomms11622. PMID: 27181484; PMCID: PMC4873648.
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Minimal model of stochastic athermal systems: origin of non-Gaussian noise.

Physical review letters

Kanazawa K, Sano TG, Sagawa T, Hayakawa H.
PMID: 25793791
Phys Rev Lett. 2015 Mar 06;114(9):090601. doi: 10.1103/PhysRevLett.114.090601. Epub 2015 Mar 03.

For a wide class of stochastic athermal systems, we derive Langevin-like equations driven by non-Gaussian noise, starting from master equations and developing a new asymptotic expansion. We found an explicit condition whereby the non-Gaussian properties of the athermal noise...

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Kanazawa K, Sano TG, Sagawa T, et al. Minimal model of stochastic athermal systems: origin of non-Gaussian noise. Phys Rev Lett. 2015;114(9):090601doi: 10.1103/PhysRevLett.114.090601.
Kanazawa, K., Sano, T. G., Sagawa, T., & Hayakawa, H. (2015). Minimal model of stochastic athermal systems: origin of non-Gaussian noise. Physical review letters, 114(9), 090601. https://doi.org/10.1103/PhysRevLett.114.090601
Kanazawa, Kiyoshi, et al. "Minimal model of stochastic athermal systems: origin of non-Gaussian noise." Physical review letters vol. 114,9 (2015): 090601. doi: https://doi.org/10.1103/PhysRevLett.114.090601
Kanazawa K, Sano TG, Sagawa T, Hayakawa H. Minimal model of stochastic athermal systems: origin of non-Gaussian noise. Phys Rev Lett. 2015 Mar 06;114(9):090601. doi: 10.1103/PhysRevLett.114.090601. Epub 2015 Mar 03. PMID: 25793791.
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Efficiency improvement in the cantilever photothermal excitation method using a photothermal conversion layer.

Beilstein journal of nanotechnology

Inada N, Asakawa H, Kobayashi T, Fukuma T.
PMID: 27335733
Beilstein J Nanotechnol. 2016 Mar 10;7:409-17. doi: 10.3762/bjnano.7.36. eCollection 2016.

Photothermal excitation is a cantilever excitation method that enables stable and accurate operation for dynamic-mode AFM measurements. However, the low excitation efficiency of the method has often limited its application in practical studies. In this study, we propose a...

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Inada N, Asakawa H, Kobayashi T, et al. Efficiency improvement in the cantilever photothermal excitation method using a photothermal conversion layer. Beilstein J Nanotechnol. 2016;7:409-17doi: 10.3762/bjnano.7.36.
Inada, N., Asakawa, H., Kobayashi, T., & Fukuma, T. (2016). Efficiency improvement in the cantilever photothermal excitation method using a photothermal conversion layer. Beilstein journal of nanotechnology, 7409-17. https://doi.org/10.3762/bjnano.7.36
Inada, Natsumi, et al. "Efficiency improvement in the cantilever photothermal excitation method using a photothermal conversion layer." Beilstein journal of nanotechnology vol. 7 (2016): 409-17. doi: https://doi.org/10.3762/bjnano.7.36
Inada N, Asakawa H, Kobayashi T, Fukuma T. Efficiency improvement in the cantilever photothermal excitation method using a photothermal conversion layer. Beilstein J Nanotechnol. 2016 Mar 10;7:409-17. doi: 10.3762/bjnano.7.36. eCollection 2016. PMID: 27335733; PMCID: PMC4901543.
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Reflecting microscope system with a 0.99 numerical aperture designed for three-dimensional fluorescence imaging of individual molecules at cryogenic temperatures.

Scientific reports

Inagawa H, Toratani Y, Motohashi K, Nakamura I, Matsushita M, Fujiyoshi S.
PMID: 26239746
Sci Rep. 2015 Aug 04;5:12833. doi: 10.1038/srep12833.

We have developed a cryogenic fluorescence microscope system, the core of which is a reflecting objective that consists of spherical and aspherical mirrors. The use of an aspherical mirror allows the reflecting objective to have a numerical aperture (NA)...

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Inagawa H, Toratani Y, Motohashi K, et al. Reflecting microscope system with a 0.99 numerical aperture designed for three-dimensional fluorescence imaging of individual molecules at cryogenic temperatures. Sci Rep. 2015;5:12833doi: 10.1038/srep12833.
Inagawa, H., Toratani, Y., Motohashi, K., Nakamura, I., Matsushita, M., & Fujiyoshi, S. (2015). Reflecting microscope system with a 0.99 numerical aperture designed for three-dimensional fluorescence imaging of individual molecules at cryogenic temperatures. Scientific reports, 512833. https://doi.org/10.1038/srep12833
Inagawa, H, et al. "Reflecting microscope system with a 0.99 numerical aperture designed for three-dimensional fluorescence imaging of individual molecules at cryogenic temperatures." Scientific reports vol. 5 (2015): 12833. doi: https://doi.org/10.1038/srep12833
Inagawa H, Toratani Y, Motohashi K, Nakamura I, Matsushita M, Fujiyoshi S. Reflecting microscope system with a 0.99 numerical aperture designed for three-dimensional fluorescence imaging of individual molecules at cryogenic temperatures. Sci Rep. 2015 Aug 04;5:12833. doi: 10.1038/srep12833. PMID: 26239746; PMCID: PMC4523877.
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A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier.

Sensors (Basel, Switzerland)

Lioe de X, Mars K, Kawahito S, Yasutomi K, Kagawa K, Yamada T, Hashimoto M.
PMID: 27089339
Sensors (Basel). 2016 Apr 13;16(4). doi: 10.3390/s16040532.

A complementary metal-oxide semiconductor (CMOS) lock-in pixel to observe stimulated Raman scattering (SRS) using a high speed lateral electric field modulator (LEFM) for photo-generated charges and in-pixel readout circuits is presented. An effective SRS signal generated after the SRS...

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Lioe de X, Mars K, Kawahito S, et al. A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier. Sensors (Basel). 2016;16(4)doi: 10.3390/s16040532.
Lioe, d. e. . X., Mars, K., Kawahito, S., Yasutomi, K., Kagawa, K., Yamada, T., & Hashimoto, M. (2016). A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier. Sensors (Basel, Switzerland), 16(4), . https://doi.org/10.3390/s16040532
Lioe, De Xing, et al. "A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier." Sensors (Basel, Switzerland) vol. 16,4 (2016). doi: https://doi.org/10.3390/s16040532
Lioe de X, Mars K, Kawahito S, Yasutomi K, Kagawa K, Yamada T, Hashimoto M. A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier. Sensors (Basel). 2016 Apr 13;16(4). doi: 10.3390/s16040532. PMID: 27089339; PMCID: PMC4851046.
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Showing 1 to 12 of 810 entries