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Publications (62)
Failure mode and effect analysis (FMEA) is a widely used approach to identify the potential failure modes, the causes for their occurrence and their possible effects of a product, process and service for improvement. Due to the shortcomings of the conventional risk priority number method, a number of alternative failure analysis models have been de...
Nowadays, failure mode and effect analysis (FMEA) is a widely used reliability analysis technique for products, processes, and services because of its relative simplicity. The conventional risk priority number method, however, has been criticized as having many limitations, such as in the assessment of failure modes, the weighting of risk factors,...
Quick response to the emergency needs and rational arrangement of pre-hospital resources have always been the main concerns when developing emergency medical services (EMS). In recent years, redeployment is deemed as a new strategy to tackle this problem. In this paper, an EMS cost model is developed considering both delayed and redeployment cost....
As information technology (IT) plays an increasingly important role in healthcare services, the impact of information quality on healthcare diagnosis quality has been gradually concerned by the healthcare industry. We choose the Pelvic Trauma Surgery of a hospital as the object of this study, and establish a model for healthcare diagnostic processe...
Emergency service decision makers are facing the following problems: where to locate the ambulance facility and how many ambulance vehicles should allocate to the station in order to meet the patient needs effectively. In this paper, we study the problem of joint planning of emergency medical services management, which typically consist of emergenc...
In this paper, service quality coordination mechanism are studied in a two-layer service supply chain that consists of one online store and one TPL with the market demand dependent on their service levels. Service decisions are compared and analyzed in two different scenarios: decentralized decision and centralized decision and then the limitations...
Call centers are an indispensable part of many businesses, and their economic role is important and fast growing. To remain competitive, call centers must provide high-quality services while keeping the number of agents and hence labor costs down. It is thus vital to monitor the service level (SL), which is a common measure of the quality of servic...
Purpose
– The purpose of this paper is to develop a new failure mode and effect analysis (FMEA) framework for evaluation, prioritization and improvement of failure modes.
Design/methodology/approach
– A hybrid multiple criteria decision-making method combining VIKOR, decision-making trial and evaluation laboratory (DEMATEL) and analytic hierarchy...
Fuzzy Petri nets (FPNs) are an important modeling tool for knowledge representation and reasoning, which have been extensively used in a lot of fields. However, the conventional FPN models have been criticized as having many shortcomings in the literature. Many different models have been suggested to enhance the performance of FPNs, but deficiencie...
Healthcare information technology (HIT) has been a promising tool to improve quality and safety of healthcare. Hospitals and institutions implied health information technology (HIT) to make the workflow more fluent, quality of healthcare better and the process of healthcare much safer. Changes are making in many aspects such as care, organizations...
The demand for better hospital performance and medical services has significantly increased during the recent years with the improvement in the living standards. This paper adopts the non-parametric technique of data envelopment analysis (DEA) to handle the feature of multiple inputs and outputs in the healthcare industry and investigates the hospi...
Home healthcare is of great convenience to the patients and can also ease the overcrowded medical settings. The issue of paramedics arrangement is critical but still unsettled. Existing researches mainly focused on the assignment of single nurse, or daily multi-nurse scheduling. In this paper, we study the medical team planning problem in a weekly...
This paper discusses the layout of different functional departments in the hospital. By relocating the departments overall, we aim to minimize the average walking time for the outpatients from the registry to their consulting departments, thus enhancing the hospital's service efficiency. Actually, this is typically a quadratic assignment problem (Q...
The response speed of emergency medical services (EMS) is extremely critical for pre-hospital lifesaving. Each second plays a vital role in emergent cases. Therefore, the EMS network should be carefully designed to provide timely and reliable services. This paper focuses on improving the classical ambulance deployment method to optimize the distrib...
Microblog is one of the most popular communication channels on the Internet, and has already become the third largest source of news and public opinions in China. Although researchers have studied the information propagation in microblog using the epidemic models, previous studies have not considered the incomplete reading behavior among microblog...
This paper proposes a linguistic reasoning Petri net (LRPN) model and develops an ordered weighted linguistic reasoning (OWLR) algorithm for knowledge representation and reasoning. Linguistic production rules in the knowledge base of a decision support system are modeled by LRPNs, where the truth degrees of the propositions in the linguistic produc...
Sensitivity and specificity of using individual tumor markers hardly meet the clinical requirement. This challenge gave rise to many efforts, e.g., combing multiple tumor markers and employing machine learning algorithms. However, results from different studies are often inconsistent, which are partially attributed to the use of different evaluatio...
Having a good understanding of users’ interests has become increasingly important for online retailers hoping to create a personalized service for a target market. Generally speaking, user’s browsing behaviors (when looking at websites) represent a comprehensive reflection of their interests. Users with various interests will visit multiple categor...
As for the supply-demand relationship between online store and the third party logistics(TPL), the concept of the distribution perfectness ratio was introduced to reflect the service quality of TPL. A non-cooperative game model and a cooperative game model were constructed respectively upon the assumption that the market demand function depended on...
Increasing assessment schemes have been used by health care organizations to build a quality management system (QMS). These schemes provide a system approach, which encompasses frameworks, varieties of awards criteria or standards and control strategies to ensure the health care quality and safety. The focus of this study is on the comparison of ex...
To now, agent scheduling for a multi-skill call center is still a unsolved problem. The deployment of multi-skill agents and the evaluation of service level are the most critical and difficult issues. Some related studies try to solve the problem utilizing heuristic algorithm supported by simulation analysis. However, since the simulation analysis...
Health Information Technology (HIT) has revealed its strength and potential in ensuring healthcare safety, quality and efficiency world widely. Facing the growing demand for medical service in China, in this paper a Smart Health Information Platform (SHIP) is abstractly introduced in which traditional health information systems (HISs) are integrate...
The health care is the decisive factor for people's health and life safety. The contradiction between the demand of integrated medical and disciplines subdivision becoming more and more obvious, many diseases relying on only a medical specialty is not enough. For realizing the patient-oriented medical service objective, it is necessary to design th...
Microblog has already been one of the most popular communication channels on the Internet, and also has become the third part of the public opinion source in China. This paper describes the behavior of browsing messages in microblog to calculate the probability of a message to be browsed after releasing and proposed an epidemic model to explain how...
It is a common view that users' browsing behaviors reflect their true interest in commodities at an e-commerce site. With the development of E-commerce, users' detailed navigating and purchasing behaviors can be completely stored. Clickstream data are records of users' browsing behaviors, which provide information about the path viewed by users and...
Generally, a service provider only gets negative assessments from his/her customers due to bad services. However, this is not always the case. Recently, a new type of e-commerce swindle called “malicious rating attack” has disordered the evaluation system of Taobao, which offers the largest virtual platform in mainland. Different from earlier fraud...
The response speed of emergency medical services (EMS) is extremely critical for the pre-hospital life saving. For emergency patients, the probability of survival will decease remarkably with each minute passing. Therefore, to provide quick EMS, the location of first-aid stations and the number of ambulances assigned to each station should be caref...
Human error is one of the most important reasons for quality defects in the manufacturing systems. In this paper, the assembly line of automobile engine was taken as an example, the human error induced quality defects and the corresponding root causes and their relative importance were explored thoroughly. Thereby, a novel approach of analyzing hum...
Contact center is a development trend of call center. The aim that enterprises and governments organize their contact centers is to offer convenient and quick service forms such as telephone, email and fax communicating with their users. A service quality, which is too low, will decrease their credit and even cause losses. Thus, contact centers mus...
Currently, tumor markers have been effectively applied for colorectal cancer (CRC) diagnosis. In order to decrease the information loss caused by single cutoff value and improve diagnosis efficiency (DE), we explore the integrative application of multiple tumor markers with multiple cutoff values systematically by developing an optimization algorit...
While chemotherapy is an effective method for treating cancers such as colorectal cancer, its effectiveness may be dampened
by the drug resistance and it may have significant side effects due to the destruction of normal cells during the treatment.
As a result, there is a need for research on choosing an optimal chemotherapy treatment plan that min...
Á Because of the theory of two expectation levels, two kinds of service quality are put forth, which are named perceived service superiority (PSS) and perceived service adequacy (PSA) respectively. To find out which kind of service quality has the most significant influence on customer satisfaction in retail service, a survey is conducted and studi...
The story of "Walmart Nappies and Beer" inspires researches to find the potential relationship between a focal product (or item/SKU) and some other products (we call supplementary products here) in a supply chain. How to reflect the dependent demand relationship between a supplementary product and a focal product is significant for supply chain man...
In this paper, with interfloor traffic condition, the optimal zoning elevator group control strategy is studied aiming at energy saving. First, the energy consumption data of an elevator is analyzed and the energy consumption model is constructed. Then, the optimal zoning strategy for energy saving is designed and solved by genetic algorithm. In th...
In this paper, the energy saving problem is studied for the elevator system with complete information. “Complete information” in elevator system means all the information about passengers, cars and hall calls are available in scheduling. First, the energy consumption data of an elevator is analyzed and the energy consumption model is constructed. T...
There are many indicators that can be used to evaluate the effectiveness of clinical pathway (CP). To choose a proper indicator, besides the characteristics of the disease, some social cultural factors have to be taken into consideration. According to the specialty of elective cesarean section and Chinese social and cultural characteristics, the me...
Focusing on the spatial geometric feasible assembly sequence planning and optimising, a novel approach entitled 3D-GCA is proposed based on the method of Geometric Constraint Analysis (GCA) incorporated with the Oriental Bounding Box (OBB) and Separation Axis Theory. Accordingly, the corresponding computer-aided 3D assembly sequence planning system...
With increasing competition, many healthcare organizations have undergone tremendous reform in the last decade aiming to increase efficiency, decrease waste, and reshape the way that care is delivered. This study focuses on the operational efficiency improvement of hospital's registration process. The operational efficiency related factors includin...
A large-scale powder-painting scheduling problem is explored. The purpose is to find out the optimal sequence of a number of batches that dynamically arrive from upstream processes within a given scheduling horizon. The objective is to enhance the production efficiency and decrease the production cost as well. To solve this problem, a mixed integer...
Nowadays, a wide range of serum tumor markers can be applied in the diagnosis of colorectal cancer. There exists a wide variability in the type and number of routinely used markers so that, sometimes, patients may receive redundant or insufficient checks. Furthermore, the traditional single cutoff point also hinders the efficient utilization of the...
It is a common view that the assembly process heavily affects a product's final quality and cost. The continuously shortening product life cycle requires a faster response speed as well as a lower defect rate in assembly production. In this situation, assembly quality control is becoming one of the most demanding problems in the modern manufacturin...
Y. Ruan Qiang Su G.-T. Zhang- [...]
L. Xue
In view of the uncertainty of the settlement of the threshold in the heuristic process mining method proposed by Aalst to deal with the noise data in the log, a method of optimization settlement of threshold based on design of experiment (DOE) analysis was proposed. The threshold is dealt as variable, and the fitness of the model that is mined as r...
In today's global competition, the significant cost saving potential on the quality costs is attracting more and more firms. The quality costs can be classified into control costs (prevention and appraisal costs) and failure costs (internal and external failure costs). As a universally accepted principle, the increase of the control costs will resu...
Purpose
The purpose of this paper is to focus on the assembly quality of copier products, specifically, concentrating on the prediction of the operator‐induced assembly defect.
Design/methodology/approach
Based on the Shibata model, the design‐based assembly complexity is redesigned. And the Sony Standard Time is replaced by the Fuji Xerox Standar...
Assembly sequence matters much to the performance in assembly production. Focusing on the spatial assembly sequencing and evaluating, a set of geometric computation methods and algorithms are studied systematically. A method entitled 3D geometric constraint analysis (3D-GCA) is proposed based on the planar GCA method combined with the techniques of...
There have been many studies to determine the best cutoff levels for tumor markers to differentiate between normal and abnormal values. This paper presents a multi-cutoff level setting algorithm for various tumors markers to improve diagnostic accuracy. The accuracy and convergence of the algorithm are further improved using an orthogonal experimen...
Assembly sequence planning (ASP) is a critical technology that bridges product design and realization. Deriving and fulfilling of the assembly precedence relations (APRs) are the essential points in assembly sequences reasoning. In this paper, focusing on APRs reasoning, ASP, and optimizing, a hierarchical ASP approach is proposed and its key techn...
Based on survey and statistical analysis, the supply chain management (SCM) of Chinese firms is evaluated systematically from the institutional view. First, an institutional framework for Chinese firms' SCM evaluation is proposed according to the institution theory and the specific environment of China. Then, focusing on the Organization & Manageme...
Nowadays, clinical pathway (CP) is becoming a promising healthcare management protocol due to its positive effectiveness on the care outcomes. But there are many factors that may influence the application effectiveness of clinical pathway thereby some unsuccessful cases are reported. To date, little research has been systematically conducted to ide...
Earliest due date (EDD) discipline was applied to hospital queuing management for out-patients with different priorities to reduce the higher-class patients' waiting times without reducing the overall satisfaction. A time utility based on queue lengths is introduced to describe the patients' waiting satisfaction at the modeling stage. The mean opin...
A dynamic self-adapting queuing model and the queuing algorithm were proposed. Considering patient's different priority and different proportion in queuing, parameters are given by adopting the fuzzy-AHP assessment method. According to different waiting times and queue lengths, it can change the queuing sequence dynamically, and the method is valid...
It is commonly accepted that service industry is viewed as a gauge for market modernization. Many researches on service industry focus on the measurement of service quality. For hotel industry, one of general services industry, systematically theoretical research about the hotel service quality management is meaningful. This paper proposes a method...
Assembly sequence planning (ASP) is the foundation of the assembly process planning and design for assembly (DFA). In ASP,
geometric feasibility is the prerequisite in the valid assembly sequences searching. The assembly precedence relations’ (APRs)
deriving and fulfilling are the essential tasks in the geometric feasible assembly sequence planning...
Assembly sequence planning (ASP) is the foundation of the assembly process planning which plays a key role in the whole product life cycle. In this paper, a unique ASP reasoning method supported by the artificial intelligent technique of case-based reasoning (CBR) is proposed and developed. First, based on the previous ASP literatures review and th...
In many Chinese hospitals, especially in big hospitals, it is a common phenomenon for patients to stand in a long queue and wait a considerable time for registration. In this paper, a field study is conducted in a Shanghai public hospital. The hospital's registration process is investigated and the data of the inter-arrival time and every procedure...
In many Chinese hospitals, especially in big hospitals, it is a common phenomenon for patients to stand in a long queue and wait a considerable time for registration. In this paper, a field study is conducted in a Shanghai public hospital. The hospital's registration process is investigated and the data of the inter-arrival time and every procedure...
Surgical healthcare service involves various interrelated activities performed from the beginning of surgical application to the completion of all producers after operation. A surgical process is finished jointly by at least three departments. It is necessary to provide an appropriate method to automate and manage this process. Hopefully, workflow...
Customer relationship management (CRM) is an advanced management method that is expected to be the successor of the popular engineering management approaches of MRP and ERP. Supported by technologies of customer satisfaction, information technology, and data mining, etc., CRM aims to enhance the effectiveness and performance of the organization by...
This paper presents an integrated framework for assembly-oriented product design and optimization (AOPDO). In AOPDO, the three main activities of an assembly planning system (design for assembly (DFA), assembly process planning, and production simulation) are integrated in a single framework Moreover, in AOPDO the three main activities of an assemb...
As far as automatical generation and the geometry feasible assembly sequences planning, a systematical method named Geometry Constraints Analysis (GCA) is proposed. Based on the GCA method, all the existed assembly precedence relations can be reasoned automatically, correctly and completely. Then, an algorithm is designed, by which all the geometry...