Bài đăng tạp chí (LIC) : [1001]

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Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 1001
  • 7 Nghiên cứu người dùng tin tại Đại học Quốc gia Hà Nội.pdf.jpg
  • Article


  • Authors: Nguyễn, Hoàng Sơn; Lê, Bá Lâm; Hoàng, Văn Dưỡng; Vũ, Thị Kim Anh; Phạm, Thị Thu (2018)

  • Với mục tiêu xây dựng Trung tâm Thông tin-Thư viện, Đại học Quốc gia Hà Nội trở thành Thư viện số nghiên cứu phục vụ đại học định hướng nghiên cứu và là một Trung tâm tri thức có nguồn lực thông tin khoa học đa dạng, phong phú và chất lượng cao tại Đại học Quốc gia Hà Nội (ĐHQGHN) cùng khẩu hiệu “Kết nối tri thức - Thúc đẩy sáng tạo” hoạt động chủ yếu trong môi trường số, Nhóm nghiên cứu đã xem xét, khảo sát 1807 người dùng tin ĐHQGHN thông qua bảng hỏi trực tiếp và trực tuyến. Qua đó, đưa ra các trao đổi, thảo luận và một số giải pháp hoàn thiện, bổ sung kho tài nguyên thông tin nhằm đáp ứng nhu cầu học tập, giảng dạy và nghiên cứu trong ĐHQGHN

  • 2 Thư viện số.pdf.jpg
  • Article


  • Authors: Nguyễn, Hoàng Sơn (2011)

  • Nhấn mạnh vai trò của thư viện số (TVS) như một trong những nền tảng quan trọng tạo nên sức mạnh trí tuệ quốc gia. Thông qua cách tiếp cận Nghiên cứu – Đào tạo – Triển khai, khái quát sự phát triển TVS thế giới qua hai thập kỷ, nhấn mạnh tác động của công nghệ web đến việc thay đổi khái niệm và mô hình TVS. Bằng việc phân tích những lỗ hổng trong Ngiên cứu – Đào tạo TVS Việt Nam thông qua so sánh với thực tiễn phát triển TVS trên thế giới, đề xuất một số giải pháp cụ thể để giải quyết tận gốc những mặt hạn chế sự phát triển TVS Việt Nam

  • 1 Digital library research.pdf.jpg
  • Article


  • Authors: Son Hoang Nguyen; Nguyễn, Hoàng Sơn (2011)

  • Research and development in digital libraries (DLs) have proliferated over the past two decades, producing many research publications on different topics. However, there is no comprehensive list of core research topics and subtopics that can be used as a knowledge map of digital library (DL) research. Based on an analysis of the call for papers from 37 conferences volumes of three major international DL conferences (JCDL, ECDL, ICADL), a list of 15 core topics and 210 subtopics was created. Searches were conducted on the SCOPUS database using the list of topics to validate and expand the list. The resulting list of topics was structured into a DL knowledge map comprising a list of 21 ...

  • Quy mô chi tiêu công và tăng trưởng kinh tế ở các nước đang phát triển, giai đoạn 2008-2014.pdf.jpg
  • Article


  • Authors: Nguyen, Thi Giang; Pham, Thi Huong Lien (2016)

  • Giai đoạn nền kinh tế toàn cầu có nhiều biến động 2008-2014, rất cần thiết có nghiên cứu về mối quan hệ giữa chi tiêu công và tăng trưởng kinh tế và hiệu quả hoạt động của khu vực công. Từ đó, đưa ra những đề xuất, kiến nghị nhằm tăng cường hiệu quả hoạt động khu vực công, góp phần thúc đẩy nền kinh tế tăng trưởng. Điều này không chỉ có ý nghĩa thực tiễn đối với các nước đang phát triển trong phạm vi nghiên cứu nói chung và hơn hết có thể áp dụng đối với Việt Nam nói tiêng trong việc giải quyết tình trạng chi tiêu công không hiệu quả và nợ công như hiện nay.

  • Verifying the compatibility of components’ ports upon specification.pdf.jpg
  • Article


  • Authors: Nguyen, Hoang Ha; Tran, Thi Mai Thuong (2007)

  • We propose in this paper an approach for verifying the com- patibility between components’ ports upon specification. In component software development, ports are the points of interaction between components. The connection between ports must satisfy some constraints. We determine these constraints and propose to use the B method and its support tools for verifying the compatibility between ports in a component model.

  • CONSTRUCTING A BAYESIAN BELIEF NETWORK TO GENERATE LEARNING PATH IN ADAPTIVE HYPERMEDIA SYSTEM.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Nguyen, Viet Ha; Ho, Si Dam (2008)

  • There are many methods and techniques which have been promoted to develop adaptive hypermedia systems [1]. Our model approach [2], generating adaptive courses based on learner’s profile which learner’s includes background, skills, style...etc. One of important steps in our model is to generate learning path adaptive for each learner. In this paper, we promote an algorithm based on shortest path search algorithm to evaluate learning object (LO) based on its attributes [3] and constructed a Bayesian Belief Network (BBN) to generate learning path for each learner.

  • Applying Weighted Learning Object to Build Adaptive Course in E-learning.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2006)

  • This research focuses on learning path selection – a part of work in my doctoral research whose goal is to develop an adaptive hypermedia. To generate adaptive learning path for each learner, we base on learner’s profile in which learner’s model is evaluated as well as stored. We have supplemented some attributes of learning object as well as a set of weight for each attributes of learning objects which is basic for selecting learning path process. In this paper, we promote a method to select learning object in order to create learning path for each learner and summary our experiment results.

  • Adapting Learning Activities for Teaching Know-How in Adaptive Course Generation System.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2009)

  • In our previous work, we have built an adaptive course generation system (ACGS) [1] to adapt a learning path for learning goals. In this paper we describe learning activity is represented in the learner model and domain model to teach learners how to get through course content based on learner’s knowledge. Therefore, our model aim is to develop Bayesian Network learner model to manage overlay knowledge model and adapt learning activities based on a task model. In addition, an implementation of this model with the course topic about computer science domain for third year students is also described.

  • A Context – Aware Mobile Learning Adaptive System for Supporting Foreigner Learning English.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Pham, Van Cong (2010)

  • This paper represents a personalized context –aware mobile learning architecture for supporting student to learn English as foreign language in order to prepare for TOEFL test. It provides adaptive content for different learners based on context –awareness. In our model, the context includes location, time, manner as well as learner’s knowledge. Through suggested topics as well as test questions, the learners will be supported adaptive content meeting their demands as well as their knowledge. Besides, this paper also describes CAMLES systemprototype that allows the learner to learnadaptive materials for TOEFL test anytime in anyw...

  • ACGs Adaptive Course Generation System - An Efficient Approach to Build E-learning Course.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2006)

  • Recently, adaptive course generation has been focusing by several researchers. We have built ACGs system to create adaptive courses for each learner based on evaluating demand, ability, background and learning style of them. ACGs is also separated content from model of course and extended learning objects in order to using intelligent agent to help them choice effectively adaptive course.

  • Fault-Tolerant Group Communication for Cooperative Mobile Robots.pdf.jpg
  • Article


  • Authors: D´efago, Xavier (2007)

  • More and more projected applications involving autonomous mobile systems (e.g., robots, smart vehicles, MEMS, or mobile sensors) rely on the ability for several nodes to cooperate toward a common goal. For instance, search and rescue, intelligent transport, or unmanned space exploitation all require several autonomous nodes to act as a coherent group. We focus on the mechanisms for cooperation among mobile robots and consider a semi-autonomous gardening system as a concrete illustration to the problem.

  • EMG REMOVAL FROM EEG BASED ON SOBI AND PSD METHOD.pdf.jpg
  • Article


  • Authors: Pham, Ba Hoang (2013)

  • This thesis presented an efficient method of separating EMG artifacts from EEG signals containing epileptic spikes, specifically helps doctors accurately diagnose epilepsy by reduced muscular artifacts in EEG. Firstly, the noisy signals are pre-processed by a combined filter which consists of a low-pass, a high-pass and a notch filters. After that, we focused on blind source separation method - SOBI, on the basis that thesis evaluated the quality of this algorithm with simulated signals and real measured signals from patients. In the next step, the power spectrum density - PSD method is applied to identify the EMG source and take the compensation on each channel. We also investigated ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 1001

Bài đăng tạp chí (LIC) : [1001]

Follow this collection to receive daily e-mail notification of new additions
Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 1001
  • 7 Nghiên cứu người dùng tin tại Đại học Quốc gia Hà Nội.pdf.jpg
  • Article


  • Authors: Nguyễn, Hoàng Sơn; Lê, Bá Lâm; Hoàng, Văn Dưỡng; Vũ, Thị Kim Anh; Phạm, Thị Thu (2018)

  • Với mục tiêu xây dựng Trung tâm Thông tin-Thư viện, Đại học Quốc gia Hà Nội trở thành Thư viện số nghiên cứu phục vụ đại học định hướng nghiên cứu và là một Trung tâm tri thức có nguồn lực thông tin khoa học đa dạng, phong phú và chất lượng cao tại Đại học Quốc gia Hà Nội (ĐHQGHN) cùng khẩu hiệu “Kết nối tri thức - Thúc đẩy sáng tạo” hoạt động chủ yếu trong môi trường số, Nhóm nghiên cứu đã xem xét, khảo sát 1807 người dùng tin ĐHQGHN thông qua bảng hỏi trực tiếp và trực tuyến. Qua đó, đưa ra các trao đổi, thảo luận và một số giải pháp hoàn thiện, bổ sung kho tài nguyên thông tin nhằm đáp ứng nhu cầu học tập, giảng dạy và nghiên cứu trong ĐHQGHN

  • 2 Thư viện số.pdf.jpg
  • Article


  • Authors: Nguyễn, Hoàng Sơn (2011)

  • Nhấn mạnh vai trò của thư viện số (TVS) như một trong những nền tảng quan trọng tạo nên sức mạnh trí tuệ quốc gia. Thông qua cách tiếp cận Nghiên cứu – Đào tạo – Triển khai, khái quát sự phát triển TVS thế giới qua hai thập kỷ, nhấn mạnh tác động của công nghệ web đến việc thay đổi khái niệm và mô hình TVS. Bằng việc phân tích những lỗ hổng trong Ngiên cứu – Đào tạo TVS Việt Nam thông qua so sánh với thực tiễn phát triển TVS trên thế giới, đề xuất một số giải pháp cụ thể để giải quyết tận gốc những mặt hạn chế sự phát triển TVS Việt Nam

  • 1 Digital library research.pdf.jpg
  • Article


  • Authors: Son Hoang Nguyen; Nguyễn, Hoàng Sơn (2011)

  • Research and development in digital libraries (DLs) have proliferated over the past two decades, producing many research publications on different topics. However, there is no comprehensive list of core research topics and subtopics that can be used as a knowledge map of digital library (DL) research. Based on an analysis of the call for papers from 37 conferences volumes of three major international DL conferences (JCDL, ECDL, ICADL), a list of 15 core topics and 210 subtopics was created. Searches were conducted on the SCOPUS database using the list of topics to validate and expand the list. The resulting list of topics was structured into a DL knowledge map comprising a list of 21 ...

  • Quy mô chi tiêu công và tăng trưởng kinh tế ở các nước đang phát triển, giai đoạn 2008-2014.pdf.jpg
  • Article


  • Authors: Nguyen, Thi Giang; Pham, Thi Huong Lien (2016)

  • Giai đoạn nền kinh tế toàn cầu có nhiều biến động 2008-2014, rất cần thiết có nghiên cứu về mối quan hệ giữa chi tiêu công và tăng trưởng kinh tế và hiệu quả hoạt động của khu vực công. Từ đó, đưa ra những đề xuất, kiến nghị nhằm tăng cường hiệu quả hoạt động khu vực công, góp phần thúc đẩy nền kinh tế tăng trưởng. Điều này không chỉ có ý nghĩa thực tiễn đối với các nước đang phát triển trong phạm vi nghiên cứu nói chung và hơn hết có thể áp dụng đối với Việt Nam nói tiêng trong việc giải quyết tình trạng chi tiêu công không hiệu quả và nợ công như hiện nay.

  • Verifying the compatibility of components’ ports upon specification.pdf.jpg
  • Article


  • Authors: Nguyen, Hoang Ha; Tran, Thi Mai Thuong (2007)

  • We propose in this paper an approach for verifying the com- patibility between components’ ports upon specification. In component software development, ports are the points of interaction between components. The connection between ports must satisfy some constraints. We determine these constraints and propose to use the B method and its support tools for verifying the compatibility between ports in a component model.

  • CONSTRUCTING A BAYESIAN BELIEF NETWORK TO GENERATE LEARNING PATH IN ADAPTIVE HYPERMEDIA SYSTEM.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Nguyen, Viet Ha; Ho, Si Dam (2008)

  • There are many methods and techniques which have been promoted to develop adaptive hypermedia systems [1]. Our model approach [2], generating adaptive courses based on learner’s profile which learner’s includes background, skills, style...etc. One of important steps in our model is to generate learning path adaptive for each learner. In this paper, we promote an algorithm based on shortest path search algorithm to evaluate learning object (LO) based on its attributes [3] and constructed a Bayesian Belief Network (BBN) to generate learning path for each learner.

  • Applying Weighted Learning Object to Build Adaptive Course in E-learning.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2006)

  • This research focuses on learning path selection – a part of work in my doctoral research whose goal is to develop an adaptive hypermedia. To generate adaptive learning path for each learner, we base on learner’s profile in which learner’s model is evaluated as well as stored. We have supplemented some attributes of learning object as well as a set of weight for each attributes of learning objects which is basic for selecting learning path process. In this paper, we promote a method to select learning object in order to create learning path for each learner and summary our experiment results.

  • Adapting Learning Activities for Teaching Know-How in Adaptive Course Generation System.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2009)

  • In our previous work, we have built an adaptive course generation system (ACGS) [1] to adapt a learning path for learning goals. In this paper we describe learning activity is represented in the learner model and domain model to teach learners how to get through course content based on learner’s knowledge. Therefore, our model aim is to develop Bayesian Network learner model to manage overlay knowledge model and adapt learning activities based on a task model. In addition, an implementation of this model with the course topic about computer science domain for third year students is also described.

  • A Context – Aware Mobile Learning Adaptive System for Supporting Foreigner Learning English.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Pham, Van Cong (2010)

  • This paper represents a personalized context –aware mobile learning architecture for supporting student to learn English as foreign language in order to prepare for TOEFL test. It provides adaptive content for different learners based on context –awareness. In our model, the context includes location, time, manner as well as learner’s knowledge. Through suggested topics as well as test questions, the learners will be supported adaptive content meeting their demands as well as their knowledge. Besides, this paper also describes CAMLES systemprototype that allows the learner to learnadaptive materials for TOEFL test anytime in anyw...

  • ACGs Adaptive Course Generation System - An Efficient Approach to Build E-learning Course.pdf.jpg
  • Article


  • Authors: Nguyen, Viet Anh; Ho, Si Dam (2006)

  • Recently, adaptive course generation has been focusing by several researchers. We have built ACGs system to create adaptive courses for each learner based on evaluating demand, ability, background and learning style of them. ACGs is also separated content from model of course and extended learning objects in order to using intelligent agent to help them choice effectively adaptive course.

  • Fault-Tolerant Group Communication for Cooperative Mobile Robots.pdf.jpg
  • Article


  • Authors: D´efago, Xavier (2007)

  • More and more projected applications involving autonomous mobile systems (e.g., robots, smart vehicles, MEMS, or mobile sensors) rely on the ability for several nodes to cooperate toward a common goal. For instance, search and rescue, intelligent transport, or unmanned space exploitation all require several autonomous nodes to act as a coherent group. We focus on the mechanisms for cooperation among mobile robots and consider a semi-autonomous gardening system as a concrete illustration to the problem.

  • EMG REMOVAL FROM EEG BASED ON SOBI AND PSD METHOD.pdf.jpg
  • Article


  • Authors: Pham, Ba Hoang (2013)

  • This thesis presented an efficient method of separating EMG artifacts from EEG signals containing epileptic spikes, specifically helps doctors accurately diagnose epilepsy by reduced muscular artifacts in EEG. Firstly, the noisy signals are pre-processed by a combined filter which consists of a low-pass, a high-pass and a notch filters. After that, we focused on blind source separation method - SOBI, on the basis that thesis evaluated the quality of this algorithm with simulated signals and real measured signals from patients. In the next step, the power spectrum density - PSD method is applied to identify the EMG source and take the compensation on each channel. We also investigated ...

Collection's Items (Sorted by Submit Date in Descending order): 1 to 20 of 1001