著者

Kosuke Takahashi Katsuhito Sudoh Satoshi Nakamura

出版者

The Association for Natural Language Processing

雑誌

自然言語処理 (ISSN:13407619)

巻号頁・発行日

vol.29, no.1, pp.3-22, 2022 (Released:2022-03-15)

参考文献数

23

被引用文献数

1

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As the performance of machine translation has improved, the need for a human-like automatic evaluation metric has been increasing. The use of multiple reference translations against a system translation (a hypothesis) has been adopted as a strategy to improve the performance of such evaluation metrics. However, preparing multiple references is highly expensive and impractical. In this study, we propose an automatic evaluation method for machine translation that uses source sentences as additional pseudo-references. The proposed method evaluates a translation hypothesis via regression to assign a real-valued score. The model takes the paired source, reference, and hypothesis sentences together as input. A pre-trained large-scale cross-lingual language model encodes the input to sentence vectors, with which the model predicts a human evaluation score. The results of experiments show that our proposed method exhibited stably higher correlation with human judgements than baseline methods that solely depend on hypothesis and reference sentences, especially when the hypotheses were very high- or low-quality translations.

著者

Keita Fujikawa Yushiro Endo Akinari Mizokami Kosuke Takahashi Maiko Tabuchi Kazuo Ohba Hideki Nakamura Atsushi Kawakami

出版者

一般社団法人 日本内科学会

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.55, no.10, pp.1375-1378, 2016 (Released:2016-05-15)

参考文献数

19

被引用文献数

8

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A 36-year-old Japanese woman with intestinal Behcet's disease was admitted to our hospital due to a recurrent ileocecal ulcer. Because infliximab (IFX) showed secondary failure, IFX was switched to adalimumab (ADA). After the third injection of ADA, she was unexpectedly 4-weeks pregnant. ADA was continued until 20 gestational weeks. Remission of the disease activity was maintained during pregnancy, and the birth was uneventful. The ileocecal ulcer disappeared after her delivery. ADA was detected in the umbilical blood after 119 days from the last infusion. The placental transition and timing of neonatal vaccination should be considered in cases of pregnancy with TNF antibody therapy.

著者

Kosuke Takahashi Shohei Nobuhara

雑誌

研究報告コンピュータビジョンとイメージメディア(CVIM) (ISSN:21888701)

巻号頁・発行日

vol.2018-CVIM-212, no.39, pp.1-16, 2018-05-03

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This paper addresses the use of mirror reflections for camera calibration. Camera calibration is an essential technique for analyzing the geometric and radiometric relationship between a 3D space and a 2D image. Most conventional camera calibration methods are based on a fundamental assumption: a camera can directly observe a reference object of known geometry. However, there are cases in which this assumption does not hold in practical scenarios. One approach to camera calibration in such cases is the use of a “mirror” as a supporting device. A mirror generates a virtual reference object that can be expressed using a small number of parameters. In addition, the 2D projection of the reflection object is equal to that of the known reference object from the virtual viewpoint. This paper utilizes these features and tackles two challenges of the geometric camera calibration; the first challenge is the intrinsic camera calibration when a known reference object is not available and the second challenge is the extrinsic camera calibration when the camera cannot directly observe a known reference object due to a physical constraint on the imaging system. The proposed algorithms introduce novel constraints, kaleidoscopic projection constraint and orthogonality constraint, which are hold with the mirror reflections for solving these problems. Evaluations with synthesized and real data demonstrates that the proposed algorithms can work properly and report the robustness of it in comparison with conventional methods.

著者

Mamoru Toyofuku Tomohiko Taniguchi Takeshi Morimoto Kyohei Yamaji Yutaka Furukawa Kosuke Takahashi Takashi Tamura Hiroki Shiomi Kenji Ando Norio Kanamori Koichiro Murata Takeshi Kitai Yuichi Kawase Chisato Izumi Makoto Miyake Hirokazu Mitsuoka Masashi Kato Yutaka Hirano Shintaro Matsuda Tsukasa Inada Tomoyuki Murakami Yasuyo Takeuchi Keiichiro Yamane Mitsuru Ishii Eri Minamino-Muta Takao Kato Moriaki Inoko Tomoyuki Ikeda Akihiro Komasa Katsuhisa Ishii Kozo Hotta Nobuya Higashitani Yoshihiro Kato Yasutaka Inuzuka Chiyo Maeda Toshikazu Jinnai Yuko Morikami Naritatsu Saito Kenji Minatoya Takeshi Kimura on behalf of the CURRENT AS Registry Investigators

出版者

日本循環器学会

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-16-1244, (Released:2017-04-08)

参考文献数

23

被引用文献数

33

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Background:There is a paucity of data on the sex differences in the prevalence, clinical presentation, and prognosis of aortic stenosis (AS).Methods and Results:A total of 3,815 consecutive patients with severe AS were enrolled in the multicenter CURRENT AS registry between January 2003 and December 2011. The registry included 1,443 men (38%) and 2,372 women (62%). Women were much older than men (79±10 vs. 75±10 years, P<0.0001), and the ratio of women to men increased with age. The cumulative 5-year incidence of all-cause death was significantly higher in men than in women (47% vs. 41%, P=0.003), although women were more symptomatic and much older. The 5-year mortality was similar between men and women at age <65 years (16% vs. 15%, P=0.99), whereas it was significantly higher in men than in women at age ≥65 years (65–74 years, 38% vs. 19%, P<0.0001; 75–84 years, 55% vs. 34%, P<0.0001; ≥85 years: 82% vs. 72%, P=0.03).Conclusions:A large Japanese multicenter registry of consecutive patients with severe AS included a much higher proportion of women than men, with the female:male sex ratio increasing with age. The 5-year mortality rate of women was lower than that of men. Lower 5-year mortality rates in women were consistently seen across all age groups >65 years.