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| 1 | Identification of activity stop locations in GPS trajectories by density-based clustering method combined with support vector machines显示文摘The identification of activity locations in continuous GPS trajectories is an essential preliminary step in obtaining person trip data and for activity-based transportation demand forecasting.In this research,a two-step methodology for identifying activity stop locations is proposed.In the first step,an improved density-based spatial clustering of applications with noise(DBSCAN) algorithm identifies stop points and moving points;then in the second step,the support vector machines(SVMs) method distinguishes activity stops from non-activity stops among the identified stop points.A time sequence constraint and a direction change constraint are applied as improvements to DBSCAN(yielding an improved algorithm known as C-DBSCAN).Then three major features are extracted for use in the SVMs method:stop duration,mean distance to the centroid of a cluster of points at a stop location,and the shorter of distances from current location to home and to the workplace.The proposed methodology was tested using GPS data collected from mobile phones in the Nagoya area of Japan.The C-DBSCAN algorithm achieves an accuracy of 90%in identifying stop points in the first step,while the SVMs method is 96%accurate in distinguishing the locations of activity stops from non-activity stops in the second step.Compared to other variants of DBSCAN used to identify activity locations from GPS trajectories,this two-step method is generally superior. | Lei Gong Hitomi Sato Toshiyuki Yamamoto Tomio Miwa Takayuki Morikawa | 2015 | Journal of Modern Transportation2015，23，3： | 8 |
| 2 | Influences of age and gender on results of noninvasive brachial–ankle pulse wave velocity measurement—a survey of 12 517 subjects显示文摘 | Hirofumi Tomiyama Akira Yamashina Tomio Arai Kenichi Hirose Yutaka Koji Taishiro Chikamori Saburoh Hori Yoshio Yamamoto Nobutaka Doba Shigeaki Hinohara | 2002 | Atherosclerosis2002，，2： | 1 |
| 3 | Cutaneous metastases from pancreatic cancer显示文摘 | Makoto Miyahara Yuichiro Hamanaka Akihiro Kawabata Yasushi Sato Akiyoshi Tanaka Akira Yamamoto Tomio Ueno Kenji Nishihara Takashi Suzuki | 1996 | International Journal of Pancreatology1996，，2： | 1 |
| 4 | 老年人腰椎后路椎间融合术的疗效显示文摘背景:目前尚未见老年人腰椎后路椎间融合术疗效的报道。本研究的目的是评估、比较大于70岁的老年人和年轻人用椎弓根钉行腰椎后路椎间融合术的临床和影像学疗效。同时评估临床和影像学效果的相关性。
方法:本研究纳入101例因L4.5退变性滑脱的患者,行腰椎后路椎弓根钉固定、椎间融合术,术后随访至少3年。随访时间平均50个月。根据手术时的年龄将患者分为两组:第一组年龄均≥70岁(平均74岁),共31例;第二组年龄均小于70岁(平均59岁),共70例。根据日本骨科协会评分系统(JOA)比较两组的术前、术后评分,术后并发症以及术后影像学资料,包括融合情况及腰椎节段前凸。
结果:就目前资料而言,两组的术前、术后评分差异无统计学意义。第一组内发生了一些全身的并发症,但是第一组内的相邻节段退变发生率较第二组低。影像学资料显示两组的腰椎节段前凸发生率差异无统计学意义。虽然第一组中的椎间塌陷融合、延迟融合发生率均明显高于第二组(p=0.034),两组中均未发现不融合。本研究中原位融合、塌陷融合、延迟融合这些不同的融合状态似乎均不影响术后临床疗效。
结论:现有资料表明不同年龄组的腰椎后路椎间融合术疗效差异无统计学意义。老年组中相邻节段退变发生率较低,而椎间塌陷、延迟融合发生率较高。融合状态似乎并不影响术后疗效。
可信度:预后性研究,Ⅱ级。进一步可信度描述参见作者介绍。 | SHINYA OKUDA TAKENORI ODA AKIRA MIYAUCHI TAKAMITSU HAKU TOMIO YAMAMOTO MOTOKI IWASAKI 张继东(译) | 2007 | 骨科动态2007，3，2： | 1 |
| 5 | Immunological evaluation of personalized peptide vaccination for patientswith pancreatic cancer显示文摘 | Koutaro Yamamoto Takashi Mine Kazuko Katagiri Nobuaki Suzuki Toru Kawaoka Tomio Ueno Satoko Matsueda Akira Yamada Kyogo Itoh Hideaki Yamana Masaaki Oka | 2005 | Oncology Reports2005，，5： | 1 |
| 6 | Solid electrolytic capacitors using an aluminum alloy electrode and conducting polymers 显示文摘 | Hideo Yamamoto Masashi Oshima Tomio Hosaka | 1999 | Synthetic Metals1999，104，： | 1 |
| 7 | Choice of Surgical Treatment for Multisegmental Cervical Spondylotic Myelopathy显示文摘 | KAZUO YONENOBU TAKESHI FUJI KEIRO ONO KOZO OKADA TOMIO YAMAMOTO NORIMASA HARADA | 1985 | Spine1985，，8： | 1 |
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