Haiphong Private University

Haiphong, Vietnam

Haiphong Private University

Haiphong, Vietnam
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Lien T.T.N.,Haiphong Private University
Indonesian Journal of Applied Linguistics | Year: 2014

This paper focuses on the potential use of discourse analysis in literature teaching in EFL class as well as approaches to designing discourse-based syllabus. This non-conventional approach has radically changed the teaching culture at Haiphong Private University, Vietnam which used to consider the analysis of literary works as reading comprehension lesson. Using this novel syllabus has gradually formed a so-called 3D(imention) class in which the teacher talks, the students talk and the literary text talk from its properties and as a result the ultimate objectives of literature teaching, say, language competence and literary appreciation can be achieved. Also, some parts of the sample syllabus are shared with a hope that they will be of certain benefit to readers.


Ngo T.-G.,HaiPhong Private University | Ngo Q.-T.,Vietnam Academy of Science and Technology | Nguyen D.-D.,Vietnam Academy of Science and Technology
International Journal of Electrical and Computer Engineering | Year: 2016

In content-based image retrieval, relevant feedback is studied extensively to narrow the gap between low-level image feature and high-level semantic concept. In general, relevance feedback aims to improve the retrieval performance by learning with user's judgements on the retrieval results. Despite widespread interest, but feedback related technologies are often faced with a few limitations. One of the most obvious limitations is often requiring the user to repeat a number of steps before obtaining the improved search results. This makes the process inefficient and tedious search for the online applications. In this paper, a effective feedback related scheme for contentbased image retrieval is proposed. First, a decision boundary is learned via Support Vector Machine to filter the images in the database. Then, a ranking function for selecting the most informative samples will be calculated by defining a novel criterion that considers both the scores of Support Vector Machine function and similarity metric between the "ideal query" and the images in the database. The experimental results on standard datasets have showed the effectiveness of the proposed method.. Copyright © 2016 Institute of Advanced Engineering and Science. All rights reserved.


Pan J.-S.,Fuzhou University | Dao T.-K.,National Kaohsiung University of Applied Sciences | Pan T.-S.,National Kaohsiung University of Applied Sciences | Nguyen T.-T.,Haiphong Private University | And 2 more authors.
Journal of Information Hiding and Multimedia Signal Processing | Year: 2017

This paper presents an improvement of the flower pollination algorithm (FPA) for optimization localization issues in wireless sensor networks (WSN). A novel probabilistic is used to generate a new candidate of competition for simulation optimization operations. The actual population of tentative solutions does not employ, but a unique representative probabilistic of them accumulate over generations. Evaluating this proposed method, we firstly used six selected benchmark functions to experiment and then we applied the proposal to solve the optimization problem of localization in WSN to confirm its performance further. The testing results compared with the original version of FPA show that the proposed method produces considerable improvements of reducing variable storing memory and running time consumption. Compared with the other approaches in the literature, the localization obtained from the proposed method is more accuracy and convergence rate indicate that the proposed method provides the effective way of using a limited memory. © 2017 ISSN.


Con T.H.,Hanoi University of Science | Cam B.D.,Hanoi University of Science | Dung N.T.K.,Haiphong Private University
EnvironmentAsia | Year: 2011

Micronucleus (MN) test in fish erythrocytes as a biomarker for marine environmental contamination. Micronucleus frequency baseline in erythrocytes was evaluated in and genotoxic potential of a common chemical was determined in fish experimentally exposed in aquarium under controlled conditions. Fish (Therapon jaruba) were exposed for 96 hrs to a single heavy metal (mercuric chloride). Chromosomal damage was determined as micronuclei frequency in fish erythrocytes. Significant increase in MN frequency was observed in erythrocytes of fish exposed to mercuric chloride. Concentration of 0.25 ppm induced the highest MN frequency (2.95 micronucleated cells/1000 cells compared.


Duc M.N.,Dalian University of Technology | Trong T.N.,Haiphong Private University
2014 IEEE International Conference on Mechatronics and Automation, IEEE ICMA 2014 | Year: 2014

Nonlinear dynamics robot manipulator control is much more complicated when compared with the objects having linear dynamics properties or non-linear static properties. Therefore, selection of the controller for the object having nonlinear dynamic properties seems to be an issue of paramount importance. In this paper, the authors have built a controller based on artificial neural networks. There are many ways to make choices among different network selection strategies; and in order to find the most optimum neural network, it requires a large number of tests being conducted on the objects, calculation of the number of layers in those objects as well as prediction of neural number in each layer. An ideal neural network should have lowest network training time as well as smallest error. Although, more number of neurons per layer means a reduction in error, this would create a difficulty in computation of neuron's parameters of the layer as well as cause an increment in network training time. Finding an optimum number of neurons per layer is therefore an important criterion. In this paper the authors have presented their experiences about network options and methods for balancing problems. © 2014 IEEE.


Nguyen Duc M.,Haiphong Private University | Trong T.N.,Haiphong Private University | Xuan Y.S.,Dalian University of Technology
2015 IEEE International Conference on Mechatronics and Automation, ICMA 2015 | Year: 2015

Quadrotor MAV is a simple structure multi-rotor aircraft with vertical take-off and landing ability, rendering it suitable for ground environmental inspection in both civil and military domain. This paper focuses on mathematical modeling and flight controller design of the quadrotor. © 2015 IEEE.


Pan T.-S.,National Kaohsiung University of Applied Sciences | Dao T.-K.,National Kaohsiung University of Applied Sciences | Nguyen T.-T.,Haiphong Private University | Chu S.-C.,Flinders University
Advances in Intelligent Systems and Computing | Year: 2015

In this paper, a communication strategy for hybrid Particle Swarm Optimization (PSO) with Bat Algorithm (BA) is proposed for solving numerical optimization problems. In this work, several worst individuals of particles in PSO will be replaced with the best individuals in BA after running some fixed iterations, and on the contrary, the poorer individuals of BA will be replaced with the finest particles of PSO. The communicating strategy provides the information flow for the particles in PSO to communicate with the bats in BA. Six benchmark functions are used to test the behavior of the convergence, the accuracy, and the speed of the approached method. The results show that the proposed scheme increases the convergence and accuracy more than BA and PSO up to 3% and 47% respectively. © Springer International Publishing Switzerland 2015.


Nguyen T.-T.,Haiphong Private University | Shieh C.-S.,National Kaohsiung University of Applied Sciences | Horng M.-F.,National Kaohsiung University of Applied Sciences | Ngo T.-G.,Haiphong Private University | Dao T.-K.,National Kaohsiung University of Applied Sciences
Advances in Intelligent Systems and Computing | Year: 2015

Prolonging the lifetime of the network is an important issue in the design and deployment of wireless sensor networks (WSN). One of the crucial factors to prolong lifetime of WSNs is to reduce energy consumption. In this study, Bat algorithm (BA) is used to find out an optimal cluster formation trying to minimize the total communication distance. Taking into account the hot spot problem in multihop WSNs, the communication distance is modeled by bat’s loudness parameter in our scheme. The communication distance and energy consumption of each node in the cluster can then be optimized with the bat algorithm. The experimental results show that this approach achieves 3% improvement of convergence and accuracy in comparison with Particle swarm optimization. © Springer International Publishing Switzerland 2015.


Dao T.-K.,National Kaohsiung University of Applied Sciences | Pan T.-S.,National Kaohsiung University of Applied Sciences | Nguyen T.-T.,Haiphong Private University | Chu S.-C.,Flinders University
Advances in Intelligent Systems and Computing | Year: 2015

Economic Load Dispatch (ELD) is one of the important optimization tasks, which provides an economic condition for the power systems. In this paper, Evolved Bat Algorithm (EBA) as an evolutionary based approach is presented to solve the constraint economic load dispatched problem of thermal plants. The output generating power for all the power-generation units can be determined by the optimal technique for transmission losses, power balance and generation capacity, so that the total constraint cost function is minimized. A piecewise quadratic function is used to show the fuel cost equation of each generation unit, and the B-coefficient matrix is used to represent transmission losses. The systems with six units and fifteen units of thermal plants are used to test the demonstration of the solution quality and computation efficiency of the feasibility of the application of the Evolved Bat Algorithm for ELD. The experimental results compared with the genetic algorithm (GA) method for ELD, and with the particle swarm optimization (PSO) method for ELD, show that the applied EBA method for ELD can provide the higher efficiency and accuracy. © Springer International Publishing Switzerland 2015.


Van Chieu D.,HaiPhong Private University | Van Hung D.,Hanoi University of Science and Technology
ACM International Conference Proceeding Series | Year: 2012

This paper proposes a method for specification and verification of distributed real-time systems using timed traces. The key idea of the proposed method is to extend distributed transition systems and linear temporal logic over Foata configurations with time. We show that systems are easily specified and verified with this method. The system behaviors are specified by a distributed duration transition system and the system properties are specified by a formula of our proposed timed logic over timed traces. We give an algorithm for solving the verification problem automatically. We also give an example to illustrate how our algorithm work. Copyright © 2012 ACM.

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