ETRI Journal最新文献_第8页

Alzheimer's disease recognition from spontaneous speech using large language models 利用大型语言模型从自发语音中识别阿尔茨海默病

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2024-01-29 DOI: 10.4218/etrij.2023-0356

Jeong-Uk Bang, Seung-Hoon Han, Byung-Ok Kang

{"title":"Alzheimer's disease recognition from spontaneous speech using large language models","authors":"Jeong-Uk Bang, Seung-Hoon Han, Byung-Ok Kang","doi":"10.4218/etrij.2023-0356","DOIUrl":"10.4218/etrij.2023-0356","url":null,"abstract":"We propose a method to automatically predict Alzheimer's disease from speech data using the ChatGPT large language model. Alzheimer's disease patients often exhibit distinctive characteristics when describing images, such as difficulties in recalling words, grammar errors, repetitive language, and incoherent narratives. For prediction, we initially employ a speech recognition system to transcribe participants' speech into text. We then gather opinions by inputting the transcribed text into ChatGPT as well as a prompt designed to solicit fluency evaluations. Subsequently, we extract embeddings from the speech, text, and opinions by the pretrained models. Finally, we use a classifier consisting of transformer blocks and linear layers to identify participants with this type of dementia. Experiments are conducted using the extensively used ADReSSo dataset. The results yield a maximum accuracy of 87.3% when speech, text, and opinions are used in conjunction. This finding suggests the potential of leveraging evaluation feedback from language models to address challenges in Alzheimer's disease recognition.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"46 1","pages":"96-105"},"PeriodicalIF":1.4,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2023-0356","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139657399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Single-shot phase-shifting on Michelson interferometry for incoherent digital holography 用于非相干数字全息技术的迈克尔逊干涉测量法上的单次相移技术

IF 1.3 4区计算机科学

ETRI Journal Pub Date : 2024-01-26 DOI: 10.4218/etrij.2023-0396

Keehoon Hong, Kihong Choi

{"title":"Single-shot phase-shifting on Michelson interferometry for incoherent digital holography","authors":"Keehoon Hong, Kihong Choi","doi":"10.4218/etrij.2023-0396","DOIUrl":"10.4218/etrij.2023-0396","url":null,"abstract":"A single-shot phase-shifting method in incoherent digital holography (IDH) based on Michelson interferometry is proposed herein. The proposed method uses polarization-modulating optical elements and a polarization sensor in the Michelson interferometer optics to induce a geometric phase shift. It acquires four holograms with different geometric phase retardations in a single exposure to eliminate the bias and conjugate noise using a phase-shifting technique. The proposed optical system enables real-time bias and conjugate term removal from a recorded hologram without requiring sequential recording for phase shifting. Furthermore, because it is based on Michelson interferometry, it can be implemented using simple reflective optics without expensive or difficult-to-produce optical elements for single-shot phase shifting. The principles of self-interference and geometric phase shifting in the proposed optical structure were analyzed mathematically. A real-time IDH-recording experimental setup was constructed to verify the proposed method. The experimental results of single-shot phase-shifting IDH and hologram movie recordings confirm the feasibility of the proposed method.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"47 1","pages":"102-111"},"PeriodicalIF":1.3,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2023-0396","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139587523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and simulation of a rectangular planar printed circuit board coil for nuclear magnetic resonance, radio frequency energy harvesting, and wireless power transfer devices 设计和模拟用于核磁共振、射频能量采集和无线电力传输设备的矩形平面印刷电路板线圈

IF 1.3 4区计算机科学

ETRI Journal Pub Date : 2024-01-17 DOI: 10.4218/etrij.2023-0163

Mostafa Noohi, Adel Pourmand, Habib Badri Ghavifekr, Ali Mirvakili

{"title":"Design and simulation of a rectangular planar printed circuit board coil for nuclear magnetic resonance, radio frequency energy harvesting, and wireless power transfer devices","authors":"Mostafa Noohi, Adel Pourmand, Habib Badri Ghavifekr, Ali Mirvakili","doi":"10.4218/etrij.2023-0163","DOIUrl":"10.4218/etrij.2023-0163","url":null,"abstract":"In this study, a planar printed circuit board (PCB) coil with FR4 substrate was designed and simulated using the finite element method, and the results were analyzed in the frequency domain. This coil can be used in wireless power transfer (WPT) as a transmitter or receiver, eliminating wires. It can also be used as the receiver in radio frequency energy-harvesting (RF-EH) systems by optimizing the planar PCB coil to convert radio-wave energy into electricity, and it can be employed as an excitation (transmitter) or receiver coil in nuclear magnetic resonance (NMR) spectroscopy. This PCB coil can replace the conventional coil, yielding a reduced occupied volume, a fine-tuned design, reduced weight, and increased efficiency. Based on the calculated gain, power, and electromagnetic and electric field results, this planar PCB coil can be implemented in WPT, NMR spectroscopy, and RF-EH devices with minor changes. In applications such as NMR spectroscopy, it can be used as a transceiver planar PCB coil. In this design, at frequencies of 915 MHz and 40 MHz with 5 mm between coils, we received powers of 287.3 \u0000<math>\u0000 <mi>μ</mi></math>W and 480 \u0000<math>\u0000 <mi>μ</mi></math>W, respectively, which are suitable for an NMR coil or RF-EH system.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"46 4","pages":"581-594"},"PeriodicalIF":1.3,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2023-0163","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139501410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Polar coded cooperative with Plotkin construction and quasi-uniform puncturing based on MIMO antennas in half duplex wireless relay network 半双工无线中继网络中基于 MIMO 天线的具有普洛特金结构和准均匀穿刺的极性编码协同技术

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2024-01-16 DOI: 10.4218/etrij.2022-0371

Jiangli Zeng, Sanya Liu

引用次数: 0

Providing scalable single-operating-system NUMA abstraction of physically discrete resources 为物理离散资源提供可扩展的单操作系统 NUMA 抽象

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2024-01-16 DOI: 10.4218/etrij.2023-0056

Baik Song An, Myung Hoon Cha, Sang-Min Lee, Won Hyuk Yang, Hong Yeon Kim

引用次数: 0

Deep reinforcement learning for base station switching scheme with federated LSTM-based traffic predictions 基于联合 LSTM 流量预测的基站切换方案深度强化学习

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2024-01-12 DOI: 10.4218/etrij.2023-0065

Hyebin Park, Seung Hyun Yoon

{"title":"Deep reinforcement learning for base station switching scheme with federated LSTM-based traffic predictions","authors":"Hyebin Park, Seung Hyun Yoon","doi":"10.4218/etrij.2023-0065","DOIUrl":"10.4218/etrij.2023-0065","url":null,"abstract":"To meet increasing traffic requirements in mobile networks, small base stations (SBSs) are densely deployed, overlapping existing network architecture and increasing system capacity. However, densely deployed SBSs increase energy consumption and interference. Although these problems already exist because of densely deployed SBSs, even more SBSs are needed to meet increasing traffic demands. Hence, base station (BS) switching operations have been used to minimize energy consumption while guaranteeing quality-of-service (QoS) for users. In this study, to optimize energy efficiency, we propose the use of deep reinforcement learning (DRL) to create a BS switching operation strategy with a traffic prediction model. First, a federated long short-term memory (LSTM) model is introduced to predict user traffic demands from user trajectory information. Next, the DRL-based BS switching operation scheme determines the switching operations for the SBSs using the predicted traffic demand. Experimental results confirm that the proposed scheme outperforms existing approaches in terms of energy efficiency, signal-to-interference noise ratio, handover metrics, and prediction performance.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"46 3","pages":"379-391"},"PeriodicalIF":1.4,"publicationDate":"2024-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2023-0065","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139482721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Joint user plane function instance and base station scheduling in mobile networks 移动网络中的用户平面功能实例和基站联合调度

IF 1.3 4区计算机科学

ETRI Journal Pub Date : 2023-12-16 DOI: 10.4218/etrij.2023-0336

Seokwon Jang, Namseok Ko, Jaewook Lee, Yeunwoong Kyung, Haneul Ko

引用次数: 0

Dialog-based multi-item recommendation using automatic evaluation 利用自动评估进行基于对话的多项目推荐

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2023-12-14 DOI: 10.4218/etrij.2022-0333

Euisok Chung, Hyun Woo Kim, Byunghyun Yoo, Ran Han, Jeongmin Yang, Hwa Jeon Song

{"title":"Dialog-based multi-item recommendation using automatic evaluation","authors":"Euisok Chung, Hyun Woo Kim, Byunghyun Yoo, Ran Han, Jeongmin Yang, Hwa Jeon Song","doi":"10.4218/etrij.2022-0333","DOIUrl":"10.4218/etrij.2022-0333","url":null,"abstract":"In this paper, we describe a neural network-based application that recommends multiple items using dialog context input and simultaneously outputs a response sentence. Further, we describe a multi-item recommendation by specifying it as a set of clothing recommendations. For this, a multimodal fusion approach that can process both cloth-related text and images is required. We also examine achieving the requirements of downstream models using a pretrained language model. Moreover, we propose a gate-based multimodal fusion and multiprompt learning based on a pretrained language model. Specifically, we propose an automatic evaluation technique to solve the one-to-many mapping problem of multi-item recommendations. A fashion-domain multimodal dataset based on Koreans is constructed and tested. Various experimental environment settings are verified using an automatic evaluation method. The results show that our proposed method can be used to obtain confidence scores for multi-item recommendation results, which is different from traditional accuracy evaluation.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"46 2","pages":"277-289"},"PeriodicalIF":1.4,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2022-0333","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138716139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Symbol interferometry and companding transform for PAPR reduction of OTFS signal 用于降低 OTFS 信号 PAPR 的符号干涉测量和编解变换

IF 1.3 4区计算机科学

ETRI Journal Pub Date : 2023-12-06 DOI: 10.4218/etrij.2023-0142

Aare Gopal, Desireddy Krishna Reddy, Srinivasarao Chintagunta

{"title":"Symbol interferometry and companding transform for PAPR reduction of OTFS signal","authors":"Aare Gopal, Desireddy Krishna Reddy, Srinivasarao Chintagunta","doi":"10.4218/etrij.2023-0142","DOIUrl":"10.4218/etrij.2023-0142","url":null,"abstract":"This paper presents methods for reducing the peak-to-average power ratio (PAPR) of the orthogonal time frequency space (OTFS) signal. These methods mainly consist of two operations: symbol interferometry (SI) and either \u0000<math>\u0000 <mi>μ</mi></math>-law or \u0000<math>\u0000 <mi>A</mi></math>-law companding. SI spreads the data of one OTFS symbol onto all symbols and is implemented using a simple inverse fast Fourier transform operation on each OTFS symbol. During the second operation, the PAPR of the OTFS signal is significantly reduced. For our performance analysis, the complementary cumulative distribution function, probability density function, and bit error rate are illustrated through simulations performed in MATLAB. The performance is also analyzed using a solid-state power amplifier at the transmitter and compared with OTFS, \u0000<math>\u0000 <mi>μ</mi></math>-law-based OTFS, and SI OTFS systems. The results indicate that the proposed OTFS system achieves a low PAPR.","PeriodicalId":11901,"journal":{"name":"ETRI Journal","volume":"46 4","pages":"595-603"},"PeriodicalIF":1.3,"publicationDate":"2023-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2023-0142","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138561963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the block error rate performance of cooperative non-orthogonal multiple access short-packet communications with full-duplex relay and partial relay selection 带全双工中继和部分中继选择的合作式非正交多址短报文通信的块误码率性能

IF 1.4 4区计算机科学

ETRI Journal Pub Date : 2023-12-06 DOI: 10.4218/etrij.2023-0125

Ha Duy Hung, Hoang Van Toan, Tran Trung Duy, Le The Dung, Quang Sy Vu

引用次数: 0