Infocommunications Journal最新文献_第7页

Evaluation of different extractors of features at the level of sentiment analysis 在情感分析水平上对不同特征提取器的评价

IF 1.1

Infocommunications Journal Pub Date : 2022-01-01 DOI: 10.36244/icj.2022.2.9

Fatima Es-Sabery, Khadija Es-Sabery, Hamid Garmani, Junaid Qadir, Abdellatif Hair

{"title":"Evaluation of different extractors of features at the level of sentiment analysis","authors":"Fatima Es-Sabery, Khadija Es-Sabery, Hamid Garmani, Junaid Qadir, Abdellatif Hair","doi":"10.36244/icj.2022.2.9","DOIUrl":"https://doi.org/10.36244/icj.2022.2.9","url":null,"abstract":"Sentiment analysis is the process of recognizing and categorizing the emotions being expressed in a textual source. Tweets are commonly used to generate a large amount of sentiment data after they are analyzed. These feelings data help to learn about people's thoughts on a various range of topics. People are typically attracted for researching positive and negative reviews, which contain dislikes and likes, shared by the consumers concerning the features of a certain service or product. Therefore, the aspects or features of the product/ service play an important role in opinion mining. Furthermore to enough work being carried out in text mining, feature extraction in opinion mining is presently becoming a hot research field. In this paper, we focus on the study of feature extractors because of their importance in classification performance. The feature extraction is the most critical aspect of opinion classification since classification efficiency can be degraded if features are not properly chosen. A few scientific researchers have addressed the issue of feature extraction. And we found in the literature that almost every article deals with one or two feature extractors. For that, we decided in this paper to cover all the most popular feature extractors which are BOW, N-grams, TF-IDF, Word2vec, GloVe and FastText. In general, this paper will discuss the existing feature extractors in the opinion mining domain. Also, it will present the advantages and the inconveniences of each extractor. Moreover, a comparative study is performed for determining the most efficient combination CNN/extractor in terms of accuracy, precision, recall, and F1 measure.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"62 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90687913","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: 0

Risk Management and Standard Compliance for Cyber-Physical Systems of Systems 系统的网络物理系统的风险管理和标准遵从

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.2.5

George Matta, Sebastian Chlup, A. Shaaban, Christoph Schmittner, Andreas Pinzenöhler, Elke Szalai, Markus Tauber

{"title":"Risk Management and Standard Compliance for Cyber-Physical Systems of Systems","authors":"George Matta, Sebastian Chlup, A. Shaaban, Christoph Schmittner, Andreas Pinzenöhler, Elke Szalai, Markus Tauber","doi":"10.36244/icj.2021.2.5","DOIUrl":"https://doi.org/10.36244/icj.2021.2.5","url":null,"abstract":"The Internet of Things (IoT) and cloud technologies are increasingly implemented in the form of Cyber-Physical Systems of Systems (CPSoS) for the railway sector. In order to satisfy the security requirements of Cyber-Physical Systems (CPS), domainspecific risk identification assessment procedures have been developed. Threat modelling is one of the most commonly used methods for threat identification for the security analysis of CPSoS and is capable of targeting various domains. This paper reports our experience of using a risk management framework identify the most critical security vulnerabilities in CPSoS in the domain and shows the broader impact this work can have on the domain of safety and security management. Moreover, we emphasize the application of common analytical methods for cyber-security based on international industry standards to identify the most vulnerable assets. These will be applied to a meta-model for automated railway systems in the concept phase to support the development and deployment of these systems. Furthermore, it is the first step to create a secure and standard complaint system by design.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88317159","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: 7

Developing a macroscopic model based on fuzzy cognitive map for road traffic flow simulation 建立了一种基于模糊认知地图的道路交通流仿真宏观模型

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.3.2

Mehran Amini, Hatwagn Miklos F., G. Mikulai, L. Kóczy

{"title":"Developing a macroscopic model based on fuzzy cognitive map for road traffic flow simulation","authors":"Mehran Amini, Hatwagn Miklos F., G. Mikulai, L. Kóczy","doi":"10.36244/icj.2021.3.2","DOIUrl":"https://doi.org/10.36244/icj.2021.3.2","url":null,"abstract":"Fuzzy cognitive maps (FCM) have been broadly employed to analyze complex and decidedly uncertain systems in modeling, forecasting, decision making, etc. Road traffic flow is also notoriously known as a highly uncertain nonlinear and complex system. Even though applications of FCM in risk analysis have been presented in various engineering fields, this research aims at modeling road traffic flow based on macroscopic characteristics through FCM. Therefore, a simulation of variables involved with road traffic flow carried out through FCM reasoning on historical data collected from the e-toll dataset of Hungarian networks of freeways. The proposed FCM model is developed based on 58 selected freeway segments as the “concepts” of the FCM; moreover, a new inference rule for employing in FCM reasoning process along with its algorithms have been presented. The results illustrate FCM representation and computation of the real segments with their main road traffic-related characteristics that have reached an equilibrium point. Furthermore, a simulation of the road traffic flow by performing the analysis of customized scenarios is presented, through which macroscopic modeling objectives such as predicting future road traffic flow state, route guidance in various scenarios, freeway geometric characteristics indication, and effectual mobility can be evaluated.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"64 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90370960","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

Double-View Matching Network for Few-Shot Learning to Classify Covid-19 in X-ray images 基于双视图匹配网络的x射线图像中Covid-19的少镜头学习分类

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/ICJ.2021.1.4

G. Szűcs, Marcell Németh

{"title":"Double-View Matching Network for Few-Shot Learning to Classify Covid-19 in X-ray images","authors":"G. Szűcs, Marcell Németh","doi":"10.36244/ICJ.2021.1.4","DOIUrl":"https://doi.org/10.36244/ICJ.2021.1.4","url":null,"abstract":"The research topic presented in this paper belongs to small training data problem in machine learning (especially in deep learning), it intends to help the work of those working in medicine by analyzing pathological X-ray recordings, using only very few images. This scenario is a particularly hot issue nowadays: how could a new disease for which only limited data are available be diagnosed using features of previous diseases? In this problem, so-called few-shot learning, the difficulty of the classification task is to learn the unique feature characteristics associated with the classes. Although there are solutions, but if the images come from different views, they will not handle these views well. We proposed an improved method, so-called Double-View Matching Network (DVMN based on the deep neural network), which solves the few-shot learning problem as well as the different views of the pathological recordings in the images. The main contribution of this is the convolutional neural network for feature extraction and handling the multi-view in image representation. Our method was tested in the classification of images showing unknown COVID-19 symptoms in an environment designed for learning a few samples, with prior meta-learning on images of other diseases only. The results show that DVMN reaches better accuracy on multi-view dataset than simple Matching Network without multi-view handling.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"27 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75223963","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: 7

Improved Model for Indoor Propagation Loss in the 5G FR2 Frequency Band 5G FR2频段室内传播损耗改进模型

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/ICJ.2021.1.1

Árpád László Makara, L. Csurgai-Horváth

引用次数: 2

Security and Autonomic Management in System of Systems 系统中的安全与自治管理

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.3.7

Silia Maksuti, Mario Zsilak, Markus Tauber, J. Delsing

引用次数: 12

AI-Based Electrode Optimisation for Small Satellite Ion Thrusters 基于人工智能的小型卫星离子推进器电极优化

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.4.1

Árpád László Makara, A. Reichardt, L. Csurgai-Horváth

{"title":"AI-Based Electrode Optimisation for Small Satellite Ion Thrusters","authors":"Árpád László Makara, A. Reichardt, L. Csurgai-Horváth","doi":"10.36244/icj.2021.4.1","DOIUrl":"https://doi.org/10.36244/icj.2021.4.1","url":null,"abstract":"Computing capacities for numerical modelling are available to an unprecedented extent today. The spread of various artificial intelligence (AI) -based solutions (which in many cases are also resource-intensive operations) is also facilitated by this increase in capacity, which offers several new opportunities in this area. On the one hand, optimization tasks can be done quickly, on the other hand, it is also possible to solve (estimate) problems where we cannot (for some reason) create a model for the initial problem. In our article, we investigate how to apply artificial intelligence-based solutions to electromagnetic field computing tasks as efficiently as possible. The required theoretical summary presents an implemented application: optimization of electrostatic ion engine accelerator electrodes for orbit correction operations. To solve each problem, we used methods from the supervised machine learning toolkit, usually along with LMS (least mean square method) update steps. All inputs required for AI were solved by numerical space calculation (primarily using the finite element method). The data input required to optimize the electrodes of an ion thruster can come from two sources: measurement data or simulation results. Given that the operating environment of a satellite can be modelled in a vacuum chamber, it is a particularly difficult issue to perform the measurement, but even more difficult in the case of optimisation. Therefore, an effective solution to the problem can only be achieved by simulation. The primary goal of this research is to optimise the fuel (in this case, the number of ions) during operation, with the stated aim of maximising the time of operation of the spacecraft.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"258 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83504985","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: 0

Exploring Embeddings for MIMO Channel Decoding on Quantum Annealers 量子退火炉上MIMO信道解码的嵌入研究

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/ICJ.2021.1.2

Ádám Marosits, Zsolt Tabi, Zsófia Kallus, Péter Vaderna, I. Gódor, Z. Zimborás

引用次数: 5

Identification of the Possible Security Issues of the 464XLAT IPv6 Transition Technology 464XLAT IPv6转换技术可能存在的安全问题分析

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.4.2

A. Al-Azzawi, G. Lencse

引用次数: 6

A Novel UWB Monopole Antenna with Reconfigurable Band Notch Characteristics Based on PIN Diodes 一种基于PIN二极管的可重构带陷波特性超宽带单极天线

IF 1.1

Infocommunications Journal Pub Date : 2021-01-01 DOI: 10.36244/icj.2021.3.4

Yahieal Alnaiemy, L. Nagy

{"title":"A Novel UWB Monopole Antenna with Reconfigurable Band Notch Characteristics Based on PIN Diodes","authors":"Yahieal Alnaiemy, L. Nagy","doi":"10.36244/icj.2021.3.4","DOIUrl":"https://doi.org/10.36244/icj.2021.3.4","url":null,"abstract":"Our design for a novel UWB monopole antenna structure with reconfigurable band notch characteristics based on PIN diodes is presented in this paper. The proposed antenna is comprised of a modified circular patch and a partial ground plane. The band-notch characteristics are achieved by etching a slot on the partial ground plane and inserting three PIN diodes into the slots for adjusting the operating antenna bands. The reconfigurability is achieved by adding three PIN diodes to obtain eight states with UWB, dual and triple operating bands which can be obtained by changing the PIN state from ON to OFF, and vice versa. The proposed design shows a simple biasing process to switch the frequency bands with insignificant gain variation and low radiation efficiency reduction. The reconfigurability of the frequency is accomplished by adjusting the effective slot length through modifying the PIN diodes states at the desired operating bands. The desired operating frequency bands can be obtained by switching the diodes. A systematic parametric study based on a numerical analysis is invoked to verify and refine the proposed performance. The proposed antenna is fabricated on FR-4 substrate with dimensions of 50×60×1 mm3. The proposed antenna performance was tested experimentally and compared to the simulated results from CSTMW based on FIT. Experimental results were in concordance with simulated results. We found that the proposed antenna design had simple geometry and it was easy to control the frequency bands to suit the applications of WiMAX and WiFi systems.","PeriodicalId":42504,"journal":{"name":"Infocommunications Journal","volume":"13 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79070230","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: 2