Controller Design for Robot with Pneumatic Artificial Muscles

Toshiaki Tsuji,Shunsuke Miyata,Takuya Hashimoto,Hiroshi Kobayashi 제어로봇시스템학회 2006 제어로봇시스템학회 국제학술대회 논문집 Vol.2006 No.10

Visualized Preference Transition Network Based on Recency and Frequency

Masruri, Farid,Tsuji, Hiroshi,Saga, Ryosuke Korean Institute of Industrial Engineers 2011 Industrial Engineeering & Management Systems Vol.10 No.4

Given a directed graph, we can determine how the user's preference moves from one product item to another. In this graph called "preference transition network", each node represents the product item while its edge pointing to the other nodes represents the transition of user's preference. However, with the large number of items make the network become more complex, unclear and difficult to be interpreted. In order to address this problem, this paper proposes a visualization technique in preference transition analysis based on recency and frequency. By adapting these two elements, the semantic meaning of each item and its transition can be clearly identified by its different types of node size, color and edge style. The experiment in a sales data has shown the results of the proposed approach.

Management of Structured Documents for Business Collaboration

Takashi Moriyasu,Hiroshi Tsuji 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-

Documents are formal media of information and knowledge for business. Volumes of documents are produced for business collaboration. They are processed collaboratively and concurrently by multiple persons involved in the business collaboration. To encourage context awareness of the collaborative and concurrent processing of documents, this paper proposes a management model of structured document. Analyzing the structure and semantic of business documents, the paper focuses on the relations between parts of documents. According to the requirement of business collaboration on document parts, it is found that the model should consist of commitment model and notification model. The commitment model propagates commitment of a person to a document part through relations between document parts according with the document model. When a person is responsible to a part, she/he is supposed to indirectly commit to some parts relating to the part. The notification model is built on the document model and the commitment model. Awareness of collaboration context for each member is one of critical problems for concurrent, asynchronous, and distributed collaboration to produce documents. Changes of document parts are notified to the collaboration members who commit the parts directly or indirectly. It supports document processing for business collaboration.

Visualized Preference Transition Network Based on Recency and Frequency

Farid Masruri,Hiroshi Tsuji,Ryosuke Saga 대한산업공학회 2011 Industrial Engineeering & Management Systems Vol.10 No.4

Given a directed graph, we can determine how the user"s preference moves from one product item to another. In this graph called "preference transition network", each node represents the product item while its edge pointing to the other nodes represents the transition of user"s preference. However, with the large number of items make the network become more complex, unclear and difficult to be interpreted. In order to address this problem, this paper proposes a visualization technique in preference transition analysis based on recency and frequency. By adapting these two elements, the semantic meaning of each item and its transition can be clearly identified by its different types of node size, color and edge style. The experiment in a sales data has shown the results of the proposed approach.

Business Collaboration Support for Offshore Software Development

Takashi Moriyasu,Guowei Zu,Hiroshi Tsuji 대한산업공학회 2010 Industrial Engineeering & Management Systems Vol.9 No.3

Offshore software development (OSD) is international business collaboration. OSD projects often encounter intercultural and inter-linguistic problems disturbing the projects. Business documents are formal media of information and knowledge for OSD. While OSD documents should convey common understanding of the OSD products, the documents may contain unsuitable expressions which draw misunderstanding of the required products and offensive issues for the collaboration. Intercultural and inter-linguistic differences cause mistakes and inappropriate expressions. OSD from Japan to China is the largest in Asia, and Japanese language is often used in OSD documents. Large similarity is found between Japanese and Chinese in their languages, while many differences exist even for the same word. The similarity induces to write unsuitable expressions for both sides of OSD. To introduce risks for OSD projects caused by unsuitable or inappropriate expressions in OSD documents, we propose to apply a proofreading system of Japanese documents for OSD. Japanese consignor uses the system to refine OSD documents written by Japanese engineers for Chinese readers, and Chinese consignee uses it to refine Japanese documents written by Chinese Engineers as derivatives of OSD projects. Effectiveness of applying the proofreading system is discussed for actual projects.

Design of Personal Spiral Conjoint Analysis

Dennis Castel,Ryosuke Saga,Hiroshi Tsuji 대한산업공학회 2013 Industrial Engineeering & Management Systems Vol.12 No.3

In order to point out the best utility of a product (or a service), marketers need to clearly understand and measure the preference of the consumers. Among numerous marketing analysis techniques, the conjoint analysis is one of the popular tools for market research. One of the issues with this tool is the lack of feedback for the respondents. This paper proposes personal stepwise conjoint analysis based on an interactive Web-questionnaire allowing respondents to receive a diagnosis of their evaluation and giving the possibility to reconsider their evaluation. To validate our proposal, experimentation with forty-two respondents is also demonstrated. Experimental results, potential modifications and improvements are detailed in this paper.

The associations of the national health and productivity management program with corporate profits in Japan

Yano Yuichiro,Kanegae Hiroshi,Node Koichi,Mizuno Atsushi,Nishiyama Akira,Rakugi Hiromi,Itoh Hiroshi,Kitaoka Kaori,Kashihara Naoki,Ikeno Fumiaki,Tsuji Ichiro,Okada Kunio 한국역학회 2022 Epidemiology and Health Vol.44 No.-

OBJECTIVES: Using a dataset from a survey on national health and productivity management, we identified health and productivity factors associated with organizational profitability. METHODS: The Ministry of Economy, Trade and Industry conducted an annual survey on Health and Productivity Management between 2014 and 2021. We assessed the associations of organizational health and productivity management using survey questions collected in 2017 and 2018, and the rate of change in profits from 2017 and 2018 to 2020. We identified factors associated with organizational profitability using eXtreme Gradient Boosting, and calculated SHapley Additive exPlanation (SHAP) values for each factor. RESULTS: Among 1,593 companies (n= 4,359,834 employees), the mean age for employees at baseline was 40.3 years and the proportion of women was 25.8%. The confusion matrix for evaluating model performance had accuracy of 0.997, precision of 0.993, recall of 0.997; and area under the precision-recall curve of 0.999. The most important factors related to an increase in corporate profits were the percentage of current smokers (SHAP value 0.121), per-employee cost for health services (0.084) and medical services (0.050); the percentage of full-time employees working in sales departments (0.074), distribution or customer service departments (0.054); the percentage of employees who sleep well (0.055); and the percentage of employees who have a habit of regular exercise within a company (0.043). CONCLUSIONS: The lifestyle health risk factors of employees and organizations’ management systems were associated with organizational profitability. Lifestyle medicine professionals may demonstrate a significant return on investment by creating a healthier and more productive workforce.

Business Collaboration Support for Offshore Software Development

Moriyasu, Takashi,Zu, Guowei,Tsuji, Hiroshi Korean Institute of Industrial Engineers 2010 Industrial Engineeering & Management Systems Vol.9 No.3

Offshore software development (OSD) is international business collaboration. OSD projects often encounter intercultural and inter-linguistic problems disturbing the projects. Business documents are formal media of information and knowledge for OSD. While OSD documents should convey common understanding of the OSD products, the documents may contain unsuitable expressions which draw misunderstanding of the required products and offensive issues for the collaboration. Intercultural and inter-linguistic differences cause mistakes and inappropriate expressions. OSD from Japan to China is the largest in Asia, and Japanese language is often used in OSD documents. Large similarity is found between Japanese and Chinese in their languages, while many differences exist even for the same word. The similarity induces to write unsuitable expressions for both sides of OSD. To introduce risks for OSD projects caused by unsuitable or inappropriate expressions in OSD documents, we propose to apply a proofreading system of Japanese documents for OSD. Japanese consignor uses the system to refine OSD documents written by Japanese engineers for Chinese readers, and Chinese consignee uses it to refine Japanese documents written by Chinese Engineers as derivatives of OSD projects. Effectiveness of applying the proofreading system is discussed for actual projects.

Design of Personal Spiral Conjoint Analysis

Castel, Dennis,Saga, Ryosuke,Tsuji, Hiroshi Korean Institute of Industrial Engineers 2013 Industrial Engineeering & Management Systems Vol.12 No.3

In order to point out the best utility of a product (or a service), marketers need to clearly understand and measure the preference of the consumers. Among numerous marketing analysis techniques, the conjoint analysis is one of the popular tools for market research. One of the issues with this tool is the lack of feedback for the respondents. This paper proposes personal stepwise conjoint analysis based on an interactive Web-questionnaire allowing respondents to receive a diagnosis of their evaluation and giving the possibility to reconsider their evaluation. To validate our proposal, experimentation with forty-two respondents is also demonstrated. Experimental results, potential modifications and improvements are detailed in this paper.

Multi-Evaluation Method for Group Data Envelopment Analysis

Akio Naito,Shingo Aoki,Hiroshi Tsuji 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8

DEA (Data Envelopment Analysis) is a method for evaluating management efficiency of DMU(Decision Making Unit). Focusing on the DMUs which have group relationship, this study proposes MF-DEA(Multi-Frontier based DEA) model which treats it. The characteristic of the proposed model is that large number of groups can be treated at once by setting frontier to each group. Though the traditional methods have restriction about the number of groups they can treat, MF-DEA is able to deal with group relationship extensively. As a result, the proposed model solves problems which the traditional methods have. The advantages and power of the proposed method are shown by numerical experiments.