Problems and solutions

The study of second-order optimality conditions is one of the most important topics in optimization theory and attracting the attention and interest of many authors. In this paper, we introduce a novel solution concept called “essential local efficient solutions of second-order” for nonconvex constrained multiobjective optimization problems.

10p viaburame 14-03-2025 1 0   Download

Quadratic programming problems are of primary importance in various applications and arise as subproblems in many optimization algorithms. In this paper, we investigate quadratic programming problems in Hilbert spaces.

10p viaburame 14-03-2025 2 0   Download

The article presents some research findings on the role of metacognition in the mathematical modeling process, including reading and understanding real-life problems, building mathematical models, solving math problems with the model, and presenting the solution.

8p viaburame 14-03-2025 0 0   Download

To solve this problem, we use an improved genetic algorithm named GA-RT (Genetic Algorithm with Random Crossover and Negative Tournament Selection) and conduct experiments on the iMOPSE standard dataset. Experimental results show that the proposed GA-RT algorithm can effectively solve the project scheduling problem, achieving better performance compared to existing algorithms.

10p viaburame 14-03-2025 2 1   Download

Customer Churn is now becoming a significant problem in the banking sector. It is necessary to seek solutions to predict the rate of customer churn in banks; however, the dataset for customer churn prediction in banks is imbalanced. In this paper, Random Forest (RF) based on two popular resampling techniques, named SMOTE and ADASYN, are used to obtain a banking customer churn prediction model.

6p viyamanaka 06-02-2025 6 2   Download

This article reports on research into the problems that non-English major freshmen at Quy Nhon University face when they lose interest in learning English speaking skills. The subjects were 200 first-year non-English majors belonging to non-English majors such as Economics, Accounting, Natural Resources and Environmental Management, Food Technology, and Construction Engineering etc. at Quy Nhon University.

17p tuetuebinhan000 23-01-2025 3 1   Download

Drug resistant tuberculosis (DR-TB) remains a global health problem. The diagnosis, treatment, and management of DR-TB are the major challenges to Vietnam National Tuberculosis Control Program. One of the most important solutions for overcoming this problem is developing reliable and low-cost methods, which have been proposed to Drug Susceptibility Testing (DST) to detect drug resistant tuberculosis.

6p viharuno 03-01-2025 17 2   Download

This paper examines the Dirichlet problem for augmented k-Hessian equations in exterior domains. Building upon our previous results on the viscosity solutions to the Dirichlet problems for augmented k -Hessian equations in the bounded domain, and L. Dai, J. Bao's method to the k-Hessian equations in exterior domains, a sufficient condition for the existence and uniqueness of viscosity solutions to the Dirichlet problem for the augmented k-Hessian equations in exterior domains have been proven.

10p vibenya 31-12-2024 8 2   Download

Bộ sưu tập giáo án unit 5 Illiteracy được biên soạn một cách rõ ràng và chi tiết được sẽ là những tài liệu tham khảo hữu ích cho quý thầy cô và các em học sinh. Đây là tài liệu hay, hứa hẹn mang đến cho quý thầy cô và các em học sinh những tiết học tốt với hiệu quả bất ngờ. Tại đây, các giáo viên dễ dàng tổng hợp các kiến thức trọng tâm của bài để cung cấp cho học sinh, giúp học sinh thảo luận về vấn đề mù chữ, nêu ra những ý kiến của mình trong việc xoá mù chữ, thực hành phát âm và phân biệt các âm /pl/, /pr/, /b/, và /br/.

37p 789_thuychi 28-03-2014 311 41   Download

Consolidation of applications in cloud computing environments presents a significant opportunity for energy optimization. As a first step toward enabling energy efficient consolidation, we study the inter-relationships between energy consumption, resource utilization, and performance of consolidated workloads. The study reveals the energy performance trade-offs for consolidation and shows that optimal operating points exist. We model the consolidation problem as a modified bin packing problem and illustrate it with an example.

24p holy_ghost 05-04-2013 88 20   Download

Data networks developed as a result of business applications that were written for microcomputers. Businesses needed a solution that would successfully address the following three problems: How to avoid duplication of equipment and resources; how to communicate efficiently; how to set up and manage a network.

78p xaydungk23 19-04-2016 63 8   Download

Hệ thống những bài giảng dành cho các tiết học của unit 5 Illiteracy giúp cho giáo viên và học sinh có thêm những tài liệu tốt nhất để chuẩn bị cho tiết học. Hi vọng bộ sưu tập này sẽ giúp ích trong việc truyền đạt kiến thức đến học sinh, giúp học sinh hiểu và biết cách sử dụng câu tường thuật với to-inf, đồng thời thảo luận về vấn đề mù chữ. Qua đó, các giáo viên có thể sử dụng những bài giảng này để có thể tiết kiệm thời gian chuẩn bị bài giảng và thiết kế cho mình một bài giảng hoàn thiện nhất.

22p thanhha_14 31-03-2014 134 16   Download

Lecture Electronic commerce - Chapter 7: E-Supply Chains, Collaborative Commerce, and Corporate Portals learning objectives: Define the e-supply chain and describe its characteristics and components. List supply chain problems and their causes. List solutions to supply chain problems provided by EC. Describe RFID supply chain applications. Define c-commerce and list the major types.

50p caphesuadathemtac 09-11-2021 19 5   Download

Lecture Electronic commerce - Chapter 13: Order Fulfillment, eCRM, and Other Support Services learning objectives: Describe the role of support services in EC. Define EC order fulfillment and describe the EC order fulfillment process. Describe the major problems of EC order fulfillment. Describe various solutions to EC order fulfillment problems. Describe CRM, its methods, and its relationship with EC. Describe eCRM implementation and tools. Describe other EC support services. Discuss the drivers of outsourcing support services.

52p caphesuadathemtac 09-11-2021 23 3   Download

The research of “Difficulties and mistakes in writing English of grade 10th students at The Asian International School, Cao Thang campus” is write to find out difficulties when students write English. This study will point out fields that students mostly have such as grammar, vocabulary, coherence, logic or structure of an essay. Therefore, this research can provide us with solutions to answer this problem.

30p xuanphongdacy09 28-09-2024 12 1   Download

Based on the aforementioned reasons and the reality of teaching and learning English speaking at The Asian High School (hereafter AHS), the author conducted a study with the aim of allowing AHS students at Cao Thang Campus to share what English speaking problems they have faced while learning speaking in the classroom.

58p xuanphongdacy09 28-09-2024 13 5   Download

This research investigates the relationship between post fault transient overvoltages and the functionality of the digital distance protection. The study is conducted in a 66kV network with a neutral earth resistor as method to earth the power system. This paper begins by performing an extensive power system analysis on ground fault transient overvoltages. The study is conducted by using the PSCAD-EMTC software package.

180p runthenight07 01-03-2023 13 3   Download

This thesis proposes and implements a new and novel solution on simulators and real devices to solve the mobility problem in a VPN. The new solution adds mobility support to existing L2TP/IPsec (Layer 2 Tunneling Protocol/IP Security) tunnels. The new solution tunnels Layer 2 packets between VPN clients and a VPN server without using Mobile IP, without incurring tunnel-re-establishment at handoff, without losing packets during handoff, achieves better security than current mobility solutions for VPN, and supports fast handoff in IPv4 networks.

123p runthenight07 01-03-2023 7 4   Download

Organizations have long struggled with the successful completion of projects within the time, cost and performance indicators with respect to a customer product or solution that is expected to ultimately meet the customer’s expectations. This thesis demonstrates the link between the successful creation, management and dissemination of project requirements throughout the entire project process using a knowledge management overlay model to ensure the success of the overall project to meet stakeholder needs through the successful creation and transfer of project requirements.

353p runthenight04 02-02-2023 12 4   Download

The purpose of the study is to investigate the TOEIC listening comprehension difficulties encountered by the second-year students at University of Economics and Business Administration, Thai Nguyen University, identify the factors that lead to such difficulties and suggest solutions to help students overcome these problems.

65p closefriend09 16-11-2021 37 3   Download