2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS)最新文献_第2页

Transmit antenna selection protocols in random cognitive networks under impact of hardware impairments 硬件损伤影响下随机认知网络中的发射天线选择协议

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725664

P. Ngoc, Tran Trung Duy, Vo Nguyen Quoc Bao, Khuong Ho‐Van

引用次数: 3

Student ability estimation based on IRT 基于IRT的学生能力评估

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725667

H. Binh, Bui The Duy

{"title":"Student ability estimation based on IRT","authors":"H. Binh, Bui The Duy","doi":"10.1109/NICS.2016.7725667","DOIUrl":"https://doi.org/10.1109/NICS.2016.7725667","url":null,"abstract":"Most of the assessment systems are now using the Classical Test Theory (CTT), the real ability of students is not exactly revealed because they rely only on counting the number of true responses without awaring other characteristics like the difficulty of each item. Several testing software are applied weighted questions but they depend on the sentiment of teachers. The modern testing theories nowadays are built on a mathematical model which can calculate the latent trait of students. The Rasch model is the probability model which promotes interaction between an item and a student. We have constructed a system to estimate students' ability basing on Item Response Theory (IRT) and applying K-Means to classify student ranking. In this paper we present a model to categorize students' levels and compare them to traditional assessment methods. The results indicate that the methods we proposed have shown some significant improvement and they could be effectively applied for other tutoring systems. The result is also meaningful in customizing content and testing ways. Beside, the research is a guide line for teachers or test makers to give other testing approaches for various examinations.","PeriodicalId":347057,"journal":{"name":"2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129344050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Stochastic gradient descent for minimal enclosing ball 最小封闭球的随机梯度下降

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725647

Hang Dang, Trung Le, Khanh-Duy Nguyen, N. Ngo

引用次数: 0

Improvement methods for stock market prediction using financial news articles 利用财经新闻文章进行股市预测的改进方法

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725636

Minh Dang, Duc Duong

引用次数: 35

Keynote talk #1: 5G: From MIMO to massive MIMO 主题演讲#1:5G:从MIMO到大规模MIMO

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725626

T. Le-Ngoc

{"title":"Keynote talk #1: 5G: From MIMO to massive MIMO","authors":"T. Le-Ngoc","doi":"10.1109/NICS.2016.7725626","DOIUrl":"https://doi.org/10.1109/NICS.2016.7725626","url":null,"abstract":"Multiple-input multiple-output (MIMO) communications systems have been seriously considered in recent years to achieve substantial gains in spectral, power, and energy efficiency compared to conventional single-input single-output (SISO) systems. Various MIMO configurations based on Single-User (SU)-MIMO, Multi-User (MU)-MIMO, network-MIMO architectures have been proposed for LTE systems. To accommodate the ever-increasing demands of different multimedia services and applications, the evolving next-generation wireless access networks are envisioned to support 1,000-fold gains in capacity, connections for billions of diverse devices, and Gb/s individual user data rates. Massive MIMO has emerged as a promising technology to deal with such challenges. Through the use of an excessively large number of service antennas in a fully coherent and adaptive operation, transmission and reception of signal energy can be focused into small regions to offer large improvements in throughput and energy efficiency, especially when combined with multi-user scheduling and in mmWave bands. Furthermore, massive MIMO can enhance the robustness to interference and intentional jamming. The talk will provide an overview from MIMO, SU-MIMO, MU-MIMO, network-MIMO to massive MIMO developments applicable to next-generation wireless access communications, and highlight various technical issues and solutions.","PeriodicalId":347057,"journal":{"name":"2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127170984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

On the energy efficient multiple-pair communication in massive MIMO relay networks 大规模MIMO中继网络中节能多对通信的研究

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725661

Do Dung Nguyen, Qingchun Chen

{"title":"On the energy efficient multiple-pair communication in massive MIMO relay networks","authors":"Do Dung Nguyen, Qingchun Chen","doi":"10.1109/NICS.2016.7725661","DOIUrl":"https://doi.org/10.1109/NICS.2016.7725661","url":null,"abstract":"In this paper, we consider multiple-pair communication in massive MIMO relay network, wherein K single antenna source nodes deliver their messages to the corresponding K single antenna destination nodes with the help of one relay provisioned with N(N >> K) antenna array. And the energy efficient multiple-pair communication in Massive MIMO relay network through the precoding at both sources and relay is addressed. It is shown that, given the channel state information at the source nodes and the relay, the zero-forcing precoding at all source nodes, the zero-forcing reception and zero-forcing transmission (ZFR/ZFT) or the zero-forcing reception and maximum ratio transmission (ZFR/MRT) at relay can be employed to mitigate inter-pair interference. The asymptotical analysis shows that, the required transmit power at relay can be made inversely proportional to the number of relay antennas without sacrificing the achieved energy efficiency. And the optimal power allocation problem is further formulated to address the power allocation design at all source nodes and the relay according to the large-scale fading for a better energy efficiency, when fulfilling some predefined sum rate performance requirements.","PeriodicalId":347057,"journal":{"name":"2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124936899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Approximation of triangular B-spline surfaces by local geometric fitting algorithm 用局部几何拟合算法逼近三角形b样条曲面

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725674

Nga Le-Thi-Thu, Khoi Nguyen-Tan, Thuy Nguyen-Thanh

{"title":"Approximation of triangular B-spline surfaces by local geometric fitting algorithm","authors":"Nga Le-Thi-Thu, Khoi Nguyen-Tan, Thuy Nguyen-Thanh","doi":"10.1109/NICS.2016.7725674","DOIUrl":"https://doi.org/10.1109/NICS.2016.7725674","url":null,"abstract":"Surfaces over triangular domain are a powerful and flexible tool for modeling of complex objects with non-rectangular topology. Due to the particular advantages of triangular parametric surfaces, they have wide application and prospect in computer aided design and reverse engineering. The interpolation or approximation problem for reconstructing an arbitrary topological parametric surface from scattered data points or polygonal mesh is one of the significant research areas. This paper deals with the approximation of triangular B-spline surfaces based on a local geometric fitting algorithm and an inverse Loop subdivision scheme. The reconstructed triangular B-spline with the low degree crosses through most of the given data points of an initial triangular mesh. The accuracy of the obtained triangular B-spline surfaces can be carried out by changing the position of control points in the local geometric algorithm as well as a number of the inverse subdivision times. Finally, we demonstrate the effectiveness of the proposed method with some experimental examples.","PeriodicalId":347057,"journal":{"name":"2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124475128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An efficient FPGA implementation of AES-CCM authenticated encryption IP core AES-CCM认证加密IP核的高效FPGA实现

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725650

T. Phan, Van‐Phuc Hoang, V. Dao

引用次数: 8

Secure distributed switch-and-stay combining networks: Secure outage probability analysis 安全分布式开关和停留组合网络:安全中断概率分析

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725631

Vo Nguyen Quoc Bao, Ho Van Cuu

引用次数: 2

PD-GABP — A novel prediction model applying for elastic applications in distributed environment PD-GABP——一种适用于分布式环境下弹性应用的新型预测模型

2016 3rd National Foundation for Science and Technology Development Conference on Information and Computer Science (NICS) Pub Date : 2016-09-01 DOI: 10.1109/NICS.2016.7725658

Dang Tran, Nhuan Tran, B. Nguyen, Hieu Hanh Le

引用次数: 4