<title>Abstract</title> Online multi-task learning (OMTL) enhances streaming data processing by harnessing relationships across tasks, typically formulated as an optimization problem with a shared loss function. However, conventional gradient-based methods often grapple gradient vanishing and conditioning issues. Moreover, their centralized nature hampers online parallel optimization, crucial for big data. Drawing from the cognitive principle of simple to complex, this study introduces...

Abstract With the maturity of big data technology, analyzing residents’ travel habits and tracks has become an important research direction in field intelligent transportation study. In this paper, based on subway bus ride data, a subway-bus double-layer network model was established using complex theory, taking optimal traffic efficiency as goal, structure optimization method is proposed, empirical study conducted Beijing network. study, by adding or deleting station network, obtain...

In the process of purchasing materials, small enterprises are often unable to meet minimum availability suppliers in due lack economic strength and storage capacity goods.Therefore, they will encounter difficulties purchasing.To solve this problem, group-led centralized procurement strategy for has become a new craze.In paper, we transform problem lot into multi-objective optimization by establishing model with cost, quality logistics as sub-objectives, use genetic algorithms multiobjective...

Service economy and service computing are taking a surge in interest what is being called SSME (Service Science, Management, Engineering). From the historical perspective, this paper compares birth research object of IS disciplines, proposes that has much similarity with discipline, fundamental change comes from digital society’s evolution. There leap process IT-driven social evolvement between SSME, solution to system. A comprehensive comparison shows their essential differences. Then three...

Urban rail transit has been selected as the research object for this paper. Firstly, an index system established to evaluate passengers' satisfaction and loyalty from perspectives of service quality, passenger loyalty. Secondly, a evaluation questionnaire urban quality designed survey conducted. At last, based on data, paper used structural equation method establish model analyze relationship among The made hypothesis city satisfaction, loyalty, (1) direct positive effect satisfaction. (2)...

Classification with incomplete survey data is a new subject, and also which an important theme in mining. This paper proposes novel, powerful classification machine, support vector machine (SVM) based model of for data. Using this model, translated to fuzzy patterns without missing values firstly, then used these as the exemplar set teaching machine. Experimental results from real-world verify effectiveness applicability proposed model. Compared other techniques, method can utilize more...

To investigate the static and dynamic trends of scientific research efficiency different types universities in China during period 2016 -2020.Methods: Based on data six nationwide from to 2020, which are classified by Compendium Science Technology Information Higher Education Institutions published Department Ministry Education.We selected full-time personnel (person-years) development Internal expenditure for year science technology funds (thousand yuan) as input evaluation indexes, number...

In recent years, railway safety accidents have repeatedly occurred. Any omission in the process of management or operation can easily very serious consequences. This study aimed to examine causes and transmission mechanisms risks engineering departments. First, multi-objective particle swarm optimization algorithm was employed determine key risk factors, allowing for indicator screening that line with requirements practical applications. Then, Bayesian networks were used, their structure...

Managing a supply chain effectively is very difficult because various sources of uncertainty and complex interrelationships at levels between entities in the chain. Fuzzy set theory used to model an uncertain environment. This paper develops new fuzzy based on possibility evaluate entire performances. The proposed allows decision makers express their risk attitudes analyze trade-off customer service level inventory investment select suitable strategies. An illustrative example validates concept this

Purpose: The Selection of logistics service providers is an important issue in supply chain management. But different evaluation methods may lead to results, which could cause inconsistent conclusions. This paper makes use a new perspective combine with variety eliminate the deviation single methods. Design/methodology/approach: expounds application combined method based on correlation. Entropy method, factor analysis, grey colligation and AHP have been used for research. Findings: According...

Purpose: This paper is committed to design a logistics industry development policy model based on system dynamic simulate the measures which promote region economic and efficiency. The interaction between logistic economy needs be investigated influence degree of efficiency affected by identified too. Design/methodology/approach: In order achieve objective, it makes analysis from perspective divide into growth subsystem, demand subsystem supply subsystem. Then hypothesis boundaries are...

Coordinating economic efficiency and technical level is important for sustainable development of railway transportation industry. Based on the coordination theory principle composite system, this paper establishes a model describing degree Also, applied to analyze coordinated tendency industry in China from 1998 2005. The result shows that still lagging technological advancement.

Service economy and service computing are taking a surge in interest what is being called Science or SSME (Service Science, Management, Engineering). From the historical perspective, this paper analyzes birth research object of SSME, argues that compared with traditional ICT applications, science focus on reconstruction integration digital system. Here, defined as process redefining connecting parts whole order to form new one. To obtain flexibility innovation, from presents logical model...

From the perspective of customer satisfaction, this paper makes a quantitative research on express service quality under online shopping environment and finds out main factors affecting quality. It provides advice for platform company to improve their

To investigate the static and dynamic trends of scientific research efficiency critical care medicine in hospitals affiliated S university during 13th Five-Year Plan period.Based on data 16 to Beijing University from 2014 2020, investment funds number physicians involved were selected as input evaluation indexes, science citation index (SCI) papers, Chinese database (CSCD) masters doctors trained output system was constructed. SPSS version 23.0 software used for descriptive statistics,...