VNU Journal of Science: Computer Science and Communication Engineering
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VLSP 2021-ViMRC Challenge: Vietnamese Machine Reading Comprehension
VNU Journal of Science: Computer Science and Communication Engineering - Tập 38 Số 2 - 2022
One of the emerging research trends in natural language understanding is machine reading comprehension (MRC) which is the task to find answers to human questions based on textual data. While many datasets have been developed for MRC research for other languages, there is a lack of such resources for the Vietnamese language. Although many datasets and methodologies have been developed for English a...... hiện toàn bộ
Towards Model-Checking Probabilistic Timed Automata against Probabilistic Duration Properties
VNU Journal of Science: Computer Science and Communication Engineering - Tập 32 Số 1 - 2016
In this paper, we consider a subclass of Probabilistic Duration Calculus formula called Simple Probabilistic Duration Calculus (SPDC) as a language for specifying dependability requirements for real-time systems, and address the two problems: to decide if a probabilistic timed automaton satisfies a SPDC formula, and to decide if there exists a strategy of a probabilistic timed automatonÂ...... hiện toàn bộ
A 8x1 Sprout-Shaped Antenna Array with Low Sidelobe Level of -25 dB
VNU Journal of Science: Computer Science and Communication Engineering - Tập 33 Số 1 - 2017
This paper proposes a 8 x 1 sprout-shaped antenna array with low sidelobe level (SLL) for outdoor point to point applications. The array has the dimensions of 165 mm x 195 mm x 1.575 mm and is designed on Rogers RT/Duroid 5870tm with the thickness of 1.575 mm and permittivity of 2.33. In order to achieve low SLL, Chebyshev distribution weights corresponding to SLL preset at -30 dB has been applie...... hiện toàn bộ
Hyper-volume Evolutionary Algorithm
VNU Journal of Science: Computer Science and Communication Engineering - Tập 32 Số 1 - 2016
We propose a multi-objective evolutionary algorithm (MOEA), named the Hyper-volume Evolutionary Algorithm (HVEA). The algorithm is characterised by three components. First, individual fitness evaluation depends on the current Pareto front, specifically on the ratio of its dominated hyper-volume to the current Pareto front hyper-volume, hence giving an indication of how close the individual is to t...... hiện toàn bộ
Coreference Resolution in Vietnamese Electronic Medical Records
VNU Journal of Science: Computer Science and Communication Engineering - Tập 34 Số 2 - 2018
Electronic medical records (EMR) have emerged as an important source of data for research in medicine andinformation technology, as they contain much of valuable human medical knowledge in healthcare and patienttreatment. This paper tackles the problem of coreference resolution in Vietnamese EMRs. Unlike in English ones,in Vietnamese clinical texts, verbs are often used to describe disease symptom...... hiện toàn bộ
Robustify Hand Tracking by Fusing Generative and Discriminative Methods
VNU Journal of Science: Computer Science and Communication Engineering - Tập 37 Số 1 - 2021
With the development of virtual reality (VR) technology and its applications in many fields, creating simulated hands in the virtual environment is an e ective way to replace the controller as well as to enhance user experience in interactive processes. Therefore, hand tracking problem is gaining a lot of research attention, making an important contribution in recognizing hand postures as well as ...... hiện toàn bộ
A Comprehensive Study of Adaptive LNA Nonlinearity Compensation Methods in Direct RF Sampling Receivers
VNU Journal of Science: Computer Science and Communication Engineering - Tập 36 Số 2 - 2020
This paper studies the effects of nonlinear distortion of Low Noise Amplifier (LNA) for the multichannel direct-RF sampling receiver (DRF). The main focus of our work is to study and compare the effectiveness of the different adaptive compensation algorithms, including the inverse-based and subtract-based Least Mean Square (LMS) algorithm with a fixed and variable step size. The models for the com...... hiện toàn bộ
PHY-MAC Cross-Layer Cooperative Protocol Supporting Physical-Layer Network Coding
VNU Journal of Science: Computer Science and Communication Engineering - Tập 31 Số 2 - 2015
Cooperative communication has known as an eective solution to deal with the channel fading as well as to improve the networkperformances. Further, by combining the cooperative relaying technique with the physical-layer network coding (PNC), cooperative networks will obtain more beneï¬ts to improve the throughput and network resource utilization. In order to leverage these beneï¬ts in this paper,...... hiện toàn bộ
Abbreviation Detection in Vietnamese Clinical Texts
VNU Journal of Science: Computer Science and Communication Engineering - Tập 34 Số 2 - 2018
Abbreviations have been widely used in clinical notes because generating clinical notes often takes place under high pressure with lack of writing time and medical record simplification. Those abbreviations limit the clarity and understanding of the records and greatly affect all the computer-based data processing tasks. In this paper, we propose a solution to the abbreviation identification task ...... hiện toàn bộ
Tổng số: 133
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