Students in higher vocational colleges are faced with difficult problems such as slow employment,which highlights the dislocation between education and the market.This study surveyed thousands of students and hundreds...Students in higher vocational colleges are faced with difficult problems such as slow employment,which highlights the dislocation between education and the market.This study surveyed thousands of students and hundreds of enterprises,and put forward docking strategies.The analysis shows that the mismatch between skills adaptation and literacy is the main cause of slow employment.To this end,research and design training programs,including curriculum restructuring,school-enterprise cooperation practice platforms,and employment-oriented quality improvement plans are imperative.At the same time,we will develop teaching modules for career planning to enhance competitiveness and ensure that the content is synchronized with industry standards.After the implementation,the employment rate of students increased by 15%within six months,the degree of interconnection increased by 20%,and the degree of enterprise recognition increased by 25%.The research effectively promotes the docking of higher vocational education with the market,and has far-reaching significance for easing slow employment.展开更多
Under the"One Belt One Road”initiative,China and Germany have become closer in cooperation and have made substantial progress in the fields of economy,trade,culture,science,and technology.The close cooperation b...Under the"One Belt One Road”initiative,China and Germany have become closer in cooperation and have made substantial progress in the fields of economy,trade,culture,science,and technology.The close cooperation between China and Germany has raised the demands for diversified German-speaking talents.After years of development and continuous exploration,China's educational institutions with German majors have established a mature talent training model but it is not enough to meet the country's growing demands for applied talents along with the economic development.With the advancement of the national education reform,many majors in various schools are thinking of reform plans suitable for their own development.Although German as a uminor^^language major is not very widely used,it plays an active and effective role in China's trade and cultural exchanges.Hence,there is a need to comprehensively improve students9 overall quality,advocate diversified training methods,adopt German-English bilingualism and professional German teaching methods,increase the cooperation of education between companies and institutions,as well as strive to train more applied German-speaking talents for the country.展开更多
The listening sub-test in IELTS is divided into four sections:section one and two test candidates’survival skills in the U.K.;section three and four,candidates’study skills,Ih trainingpractice,the instructor may div...The listening sub-test in IELTS is divided into four sections:section one and two test candidates’survival skills in the U.K.;section three and four,candidates’study skills,Ih trainingpractice,the instructor may divide the listening material intotwo parts.In the first part—survival English,culturalbackground knowledge of daily life in the U.K.should be takenas the training focus.Dialogues concerning a new arrival’s dailyactivities in the U.K.may be chosen as listening material.Thesecond part,Academic English training is the most challengingtask.To understand a university lecture or academic interview,a good command of academic vocabulary is essential,so theinstructor should design some exercises to help students memorizeacademic vocabulary.The training focus for the academicEnglish part is the skill of grasping the main points of a lecture orinterview.Students should show how to write outlines andsummaries.Gap-fill and T&F&N forms may be adopted forsummary and outline training.展开更多
In contemporary English teaching, the study of English learning strategies has become one of the main concerns in teachers' teaching and research processes. The necessity of implementation of learning strategies trai...In contemporary English teaching, the study of English learning strategies has become one of the main concerns in teachers' teaching and research processes. The necessity of implementation of learning strategies training in the field of English teaching practice still remains disputable. This essay first introduces the different reactions towards the field; then advances the idea of combining English teaching strategies with English learning strategies attempting the implementation of learning strategies training in the classroom teaching. Finally, some thinking produced in the process of practicing the strategies training is raised to reexamine this teaching mode.展开更多
As the ultimate goal of education, autonomy in language learning has aroused a lot of attention from scholars at home and abroad. While in universities of China, students do not have strong autonomy in English languag...As the ultimate goal of education, autonomy in language learning has aroused a lot of attention from scholars at home and abroad. While in universities of China, students do not have strong autonomy in English language learning. The author tries to adopt specific meta-cognitive strategies to facilitate students' autonomy in learning by improving learners' capacities in study planning or management, monitoring and evaluating in learning to raise their consciousness and ability in autonomy, and lay a foundation for life-long learning.展开更多
Reading comprehension ability is one of the key abilities trained in College English teaching in China. This paper first examines the theories behind top-down and bottom-up reading strategies, and then suggests top-do...Reading comprehension ability is one of the key abilities trained in College English teaching in China. This paper first examines the theories behind top-down and bottom-up reading strategies, and then suggests top-down reading strategies are more effective than the bottom-up ones in training EFL learners to be efficient readers in English. In particular, taking into account the English proficiency and the cognitive ability of the Chinese university students (non-English major), the author argues that more priorities should be given to the top-down reading strategies training in EFL reading class.展开更多
It is of great significance to carry out Meta-cognitive Strategy Training (MST) in current college English teaching context. After analyzing the advantages and disadvantages of some sequences and models for strategy...It is of great significance to carry out Meta-cognitive Strategy Training (MST) in current college English teaching context. After analyzing the advantages and disadvantages of some sequences and models for strategy training, the authors suggest the Meta-cognitive Strategy Training model which consists of 6 steps with Strategies-Based Instruction (SBI) employed to conduct the concrete strategy training.展开更多
This study investigated the effects of a CLSTS (Computer-Assisted Listening Strategy Training Software) program on the development of students' ability to use four target listening strategies to enhance their liste...This study investigated the effects of a CLSTS (Computer-Assisted Listening Strategy Training Software) program on the development of students' ability to use four target listening strategies to enhance their listening comprehension. This study covered an experimental group and a control group. The participants were Grade 10 Thai EFL (English as a Foreign Language) students in a Thai high school in Bangkok, Thailand. Experimental group performance was compared to that of a control group on the five research instruments. Regarding the effect of the CLSTS on the students' ability to use the target listening strategies to enhance their listening comprehension, it was found that the CLSTS was significantly effective. The results that made CLSTS effective were categorized into six main aspects.展开更多
This paper explores how to implement effective strategy training for part-time Chinese adult English learners in a tertiary FLT (Foreign Language Teaching) classroom. Through a study of threx~ semesters during which...This paper explores how to implement effective strategy training for part-time Chinese adult English learners in a tertiary FLT (Foreign Language Teaching) classroom. Through a study of threx~ semesters during which six sessions of learner training workshops and constant, integrated task-based instruction were carried out, empirical evidence was collected via the instrument of questionnaires, interviews, learners' regular written reports, and the findings indicate that: (1) The students reported a statistically significant increase of the overaU average frequency of language strategy use over all SILL (The Strategy Inventory for Language Learning) items with 2.95 at the beginning and 3.61 at the end; and (2) Well-organized, explicit, and discrete leaner training workshops combined with frequent, explicit, and integrated task-based strategy instruction are an effective and helpful way to improve learners' awareness, selection, and frequency of strategy use, which can further foster learner autonomy.展开更多
Made in China 2025 Strategy requires a large number of high skilled talents,which the high-skilled talents are the core backbone of skilled workers and a significant force to promote technological innovation and reali...Made in China 2025 Strategy requires a large number of high skilled talents,which the high-skilled talents are the core backbone of skilled workers and a significant force to promote technological innovation and realize the transformation of scientific and technological achievements.In this study,combined with automotive spraying industry characteristics,four cultivation strategies are established by the construction of the system of high-skilled talent formation,training mode of on-campus+on-job highskilled talents,the common trail of national certification and enterprise certification and the star system spiraling excitation in order to create a new growth path for the cultivation of high-skilled talents in automobile spraying.展开更多
Employment is the first priority for survival today.With the increasingly severe employment situation,the employment problem of college students has become inevitable.In recent years,with the expansion of university s...Employment is the first priority for survival today.With the increasingly severe employment situation,the employment problem of college students has become inevitable.In recent years,with the expansion of university scale,the number of university graduates is increasing rapidly,with an imbalance in the number,structure,and social demand of talents;moreover,there are significant differences between college students'employment quality and social expectations.In order to cultivate the innovation and entrepreneurship ability of college students,this paper provides new ideas,analyzes the factors affecting the formation and development of college students'innovation and entrepreneurship ability,as well as proposes several strategies to enhance its scientificity,pertinence,and effectiveness,which are conducive to further strengthening innovation and entrepreneurship education as well as cultivating innovation and entrepreneurship talents in colleges and universities,thus providing strong support for talent training and teaching reform in colleges and universities in China.It also provides a solid foundation for China's social innovation and entrepreneurship,along with innovative and entrepreneurial services to meet the needs of society,so as to improve the success rate of entrepreneurship among college students,effectively promote entrepreneurship-driven employment,and solve the employment problems of college students,which are conducive to China's rapid transformation into an innovative country and a powerful country in terms of human resources.展开更多
As English has become a universal lingua franca at present,more and more learners are anxious to learn it effectively and successfully.Studies show that the use of language learning strategies directly relates to lang...As English has become a universal lingua franca at present,more and more learners are anxious to learn it effectively and successfully.Studies show that the use of language learning strategies directly relates to language performance.This article attempts to provide an overview of language learning strategies for researchers' reference,helping them get insights in this field.展开更多
Listening is an important part in the second language learning process,so how to improve students’ listening comprehension especially for non-English majors becomes a main concern to teachers.For this purpose,a targe...Listening is an important part in the second language learning process,so how to improve students’ listening comprehension especially for non-English majors becomes a main concern to teachers.For this purpose,a targeted listening strategy training was conducted in listening classes.Test results manifest that sixty participants get more or less improvement in their listening comprehension after receiving a strategy training every two hours over ten weeks.Low and middle achievers make relatively more progress than high-achievers.Interviews also indicate that high achievers use top-down strategies more than low achievers in listening process,while low achievers employ more bottom-up strategies than high achievers.This indicates that effective strategy training in listening class could enhance students’ listening performance.It is hoped that this study could give some insights to the future listening teaching.展开更多
A great many recent studies have shown that making good use of learning strategies can contribute much to students' foreign language learning. This paper deals with some important issues about strategy training ba...A great many recent studies have shown that making good use of learning strategies can contribute much to students' foreign language learning. This paper deals with some important issues about strategy training based on O'Malley and Chamot's theory, including the concept, value and goals of strategy training and approaches to such training.展开更多
In the context of quality education,a wider exploration of physical education has been carried out,but at the same time higher requirements have been put forward for school sports courses.It is essential to pay attent...In the context of quality education,a wider exploration of physical education has been carried out,but at the same time higher requirements have been put forward for school sports courses.It is essential to pay attention to the teaching and training of physical knowledge and skills in physical education training as well as cultivate the core physical literacy of primary school students.The core quality of physical education is the main part of the basic quality of primary and middle school students,which is of great significance to their learning and development.This article will explore the training methods of primary and middle school students’basic quality in school physical education courses for reference.展开更多
The existing safety helmet detection methods are mainly based on one-stage object detection algorithms with high detection speed to reach the real-time detection requirements,but they can’t accurately detect small ob...The existing safety helmet detection methods are mainly based on one-stage object detection algorithms with high detection speed to reach the real-time detection requirements,but they can’t accurately detect small objects and objects with obstructions.Therefore,we propose a helmet detection algorithm based on the attention mechanism(AT-YOLO).First of all,a channel attention module is added to the YOLOv3 backbone network,which can adaptively calibrate the channel features of the direction to improve the feature utilization,and a spatial attention module is added to the neck of the YOLOv3 network to capture the correlation between any positions in the feature map so that to increase the receptive field of the network.Secondly,we use DIoU(Distance Intersection over Union)bounding box regression loss function,it not only improving the measurement of bounding box regression loss but also increases the normalized distance loss between the prediction boxes and the target boxes,which makes the network more accurate in detecting small objects and faster in convergence.Finally,we explore the training strategy of the network model,which improves network performance without increasing the inference cost.Experiments show that the mAP of the proposed method reaches 96.5%,and the detection speed can reach 27 fps.Compared with other existing methods,it has better performance in detection accuracy and speed.展开更多
Image captioning refers to automatic generation of descriptive texts according to the visual content of images.It is a technique integrating multiple disciplines including the computer vision(CV),natural language proc...Image captioning refers to automatic generation of descriptive texts according to the visual content of images.It is a technique integrating multiple disciplines including the computer vision(CV),natural language processing(NLP)and artificial intelligence.In recent years,substantial research efforts have been devoted to generate image caption with impressive progress.To summarize the recent advances in image captioning,we present a comprehensive review on image captioning,covering both traditional methods and recent deep learning-based techniques.Specifically,we first briefly review the early traditional works based on the retrieval and template.Then deep learning-based image captioning researches are focused,which is categorized into the encoder-decoder framework,attention mechanism and training strategies on the basis of model structures and training manners for a detailed introduction.After that,we summarize the publicly available datasets,evaluation metrics and those proposed for specific requirements,and then compare the state of the art methods on the MS COCO dataset.Finally,we provide some discussions on open challenges and future research directions.展开更多
Based on the CNN-LSTM fusion deep neural network,this paper proposes a seismic velocity model building method that can simultaneously estimate the root mean square(RMS)velocity and interval velocity from the common-mi...Based on the CNN-LSTM fusion deep neural network,this paper proposes a seismic velocity model building method that can simultaneously estimate the root mean square(RMS)velocity and interval velocity from the common-midpoint(CMP)gather.In the proposed method,a convolutional neural network(CNN)Encoder and two long short-term memory networks(LSTMs)are used to extract spatial and temporal features from seismic signals,respectively,and a CNN Decoder is used to recover RMS velocity and interval velocity of underground media from various feature vectors.To address the problems of unstable gradients and easily fall into a local minimum in the deep neural network training process,we propose to use Kaiming normal initialization with zero negative slopes of rectifi ed units and to adjust the network learning process by optimizing the mean square error(MSE)loss function with the introduction of a freezing factor.The experiments on testing dataset show that CNN-LSTM fusion deep neural network can predict RMS velocity as well as interval velocity more accurately,and its inversion accuracy is superior to that of single neural network models.The predictions on the complex structures and Marmousi model are consistent with the true velocity variation trends,and the predictions on fi eld data can eff ectively correct the phase axis,improve the lateral continuity of phase axis and quality of stack section,indicating the eff ectiveness and decent generalization capability of the proposed method.展开更多
In this paper, we propose a new formula of the real-time minimum safety headway based on the relative velocity of consecutive trains and present a dynamic model of high-speed passenger train movements in the rail line...In this paper, we propose a new formula of the real-time minimum safety headway based on the relative velocity of consecutive trains and present a dynamic model of high-speed passenger train movements in the rail line based on the proposed formula of the minimum safety headway. Moreover, we provide the control strategies of the high-speed passenger train operations based on the proposed formula of the real-time minimum safety headway and the dynamic model of highspeed passenger train movements. The simulation results demonstrate that the proposed control strategies of the passenger train operations can greatly reduce the delay propagation in the high-speed rail line when a random delay occurs.展开更多
With my country's entry into the WTO,transnational communication has become more frequent.However,the lack of cross-cultural awareness in cross-cultural communication will cause communication barriers.Therefore,in...With my country's entry into the WTO,transnational communication has become more frequent.However,the lack of cross-cultural awareness in cross-cultural communication will cause communication barriers.Therefore,in the translation teaching of college English,attention should be paid to cultivating students'cross-cultural awareness and enhancing their ability in cross-cultural communication.Based on this,this article explains the significance of cross-cultural awareness to college English translation teaching,and analyzes the problems existing in the process of college English translation teaching,and finally proposes ways and strategies to cultivate cross-cultural awareness in college English translation teaching.Provide some reference value for workers in this field.展开更多
文摘Students in higher vocational colleges are faced with difficult problems such as slow employment,which highlights the dislocation between education and the market.This study surveyed thousands of students and hundreds of enterprises,and put forward docking strategies.The analysis shows that the mismatch between skills adaptation and literacy is the main cause of slow employment.To this end,research and design training programs,including curriculum restructuring,school-enterprise cooperation practice platforms,and employment-oriented quality improvement plans are imperative.At the same time,we will develop teaching modules for career planning to enhance competitiveness and ensure that the content is synchronized with industry standards.After the implementation,the employment rate of students increased by 15%within six months,the degree of interconnection increased by 20%,and the degree of enterprise recognition increased by 25%.The research effectively promotes the docking of higher vocational education with the market,and has far-reaching significance for easing slow employment.
文摘Under the"One Belt One Road”initiative,China and Germany have become closer in cooperation and have made substantial progress in the fields of economy,trade,culture,science,and technology.The close cooperation between China and Germany has raised the demands for diversified German-speaking talents.After years of development and continuous exploration,China's educational institutions with German majors have established a mature talent training model but it is not enough to meet the country's growing demands for applied talents along with the economic development.With the advancement of the national education reform,many majors in various schools are thinking of reform plans suitable for their own development.Although German as a uminor^^language major is not very widely used,it plays an active and effective role in China's trade and cultural exchanges.Hence,there is a need to comprehensively improve students9 overall quality,advocate diversified training methods,adopt German-English bilingualism and professional German teaching methods,increase the cooperation of education between companies and institutions,as well as strive to train more applied German-speaking talents for the country.
文摘The listening sub-test in IELTS is divided into four sections:section one and two test candidates’survival skills in the U.K.;section three and four,candidates’study skills,Ih trainingpractice,the instructor may divide the listening material intotwo parts.In the first part—survival English,culturalbackground knowledge of daily life in the U.K.should be takenas the training focus.Dialogues concerning a new arrival’s dailyactivities in the U.K.may be chosen as listening material.Thesecond part,Academic English training is the most challengingtask.To understand a university lecture or academic interview,a good command of academic vocabulary is essential,so theinstructor should design some exercises to help students memorizeacademic vocabulary.The training focus for the academicEnglish part is the skill of grasping the main points of a lecture orinterview.Students should show how to write outlines andsummaries.Gap-fill and T&F&N forms may be adopted forsummary and outline training.
文摘In contemporary English teaching, the study of English learning strategies has become one of the main concerns in teachers' teaching and research processes. The necessity of implementation of learning strategies training in the field of English teaching practice still remains disputable. This essay first introduces the different reactions towards the field; then advances the idea of combining English teaching strategies with English learning strategies attempting the implementation of learning strategies training in the classroom teaching. Finally, some thinking produced in the process of practicing the strategies training is raised to reexamine this teaching mode.
文摘As the ultimate goal of education, autonomy in language learning has aroused a lot of attention from scholars at home and abroad. While in universities of China, students do not have strong autonomy in English language learning. The author tries to adopt specific meta-cognitive strategies to facilitate students' autonomy in learning by improving learners' capacities in study planning or management, monitoring and evaluating in learning to raise their consciousness and ability in autonomy, and lay a foundation for life-long learning.
文摘Reading comprehension ability is one of the key abilities trained in College English teaching in China. This paper first examines the theories behind top-down and bottom-up reading strategies, and then suggests top-down reading strategies are more effective than the bottom-up ones in training EFL learners to be efficient readers in English. In particular, taking into account the English proficiency and the cognitive ability of the Chinese university students (non-English major), the author argues that more priorities should be given to the top-down reading strategies training in EFL reading class.
文摘It is of great significance to carry out Meta-cognitive Strategy Training (MST) in current college English teaching context. After analyzing the advantages and disadvantages of some sequences and models for strategy training, the authors suggest the Meta-cognitive Strategy Training model which consists of 6 steps with Strategies-Based Instruction (SBI) employed to conduct the concrete strategy training.
文摘This study investigated the effects of a CLSTS (Computer-Assisted Listening Strategy Training Software) program on the development of students' ability to use four target listening strategies to enhance their listening comprehension. This study covered an experimental group and a control group. The participants were Grade 10 Thai EFL (English as a Foreign Language) students in a Thai high school in Bangkok, Thailand. Experimental group performance was compared to that of a control group on the five research instruments. Regarding the effect of the CLSTS on the students' ability to use the target listening strategies to enhance their listening comprehension, it was found that the CLSTS was significantly effective. The results that made CLSTS effective were categorized into six main aspects.
文摘This paper explores how to implement effective strategy training for part-time Chinese adult English learners in a tertiary FLT (Foreign Language Teaching) classroom. Through a study of threx~ semesters during which six sessions of learner training workshops and constant, integrated task-based instruction were carried out, empirical evidence was collected via the instrument of questionnaires, interviews, learners' regular written reports, and the findings indicate that: (1) The students reported a statistically significant increase of the overaU average frequency of language strategy use over all SILL (The Strategy Inventory for Language Learning) items with 2.95 at the beginning and 3.61 at the end; and (2) Well-organized, explicit, and discrete leaner training workshops combined with frequent, explicit, and integrated task-based strategy instruction are an effective and helpful way to improve learners' awareness, selection, and frequency of strategy use, which can further foster learner autonomy.
文摘Made in China 2025 Strategy requires a large number of high skilled talents,which the high-skilled talents are the core backbone of skilled workers and a significant force to promote technological innovation and realize the transformation of scientific and technological achievements.In this study,combined with automotive spraying industry characteristics,four cultivation strategies are established by the construction of the system of high-skilled talent formation,training mode of on-campus+on-job highskilled talents,the common trail of national certification and enterprise certification and the star system spiraling excitation in order to create a new growth path for the cultivation of high-skilled talents in automobile spraying.
基金Planning Subject for the 13th Five Year Plan of Liaoning Education Sciences(Project Number:JG18DB070)Collaborative Education Project of Industry University Cooperation of the Ministry of Education(Project Number:202102477029)。
文摘Employment is the first priority for survival today.With the increasingly severe employment situation,the employment problem of college students has become inevitable.In recent years,with the expansion of university scale,the number of university graduates is increasing rapidly,with an imbalance in the number,structure,and social demand of talents;moreover,there are significant differences between college students'employment quality and social expectations.In order to cultivate the innovation and entrepreneurship ability of college students,this paper provides new ideas,analyzes the factors affecting the formation and development of college students'innovation and entrepreneurship ability,as well as proposes several strategies to enhance its scientificity,pertinence,and effectiveness,which are conducive to further strengthening innovation and entrepreneurship education as well as cultivating innovation and entrepreneurship talents in colleges and universities,thus providing strong support for talent training and teaching reform in colleges and universities in China.It also provides a solid foundation for China's social innovation and entrepreneurship,along with innovative and entrepreneurial services to meet the needs of society,so as to improve the success rate of entrepreneurship among college students,effectively promote entrepreneurship-driven employment,and solve the employment problems of college students,which are conducive to China's rapid transformation into an innovative country and a powerful country in terms of human resources.
文摘As English has become a universal lingua franca at present,more and more learners are anxious to learn it effectively and successfully.Studies show that the use of language learning strategies directly relates to language performance.This article attempts to provide an overview of language learning strategies for researchers' reference,helping them get insights in this field.
文摘Listening is an important part in the second language learning process,so how to improve students’ listening comprehension especially for non-English majors becomes a main concern to teachers.For this purpose,a targeted listening strategy training was conducted in listening classes.Test results manifest that sixty participants get more or less improvement in their listening comprehension after receiving a strategy training every two hours over ten weeks.Low and middle achievers make relatively more progress than high-achievers.Interviews also indicate that high achievers use top-down strategies more than low achievers in listening process,while low achievers employ more bottom-up strategies than high achievers.This indicates that effective strategy training in listening class could enhance students’ listening performance.It is hoped that this study could give some insights to the future listening teaching.
文摘A great many recent studies have shown that making good use of learning strategies can contribute much to students' foreign language learning. This paper deals with some important issues about strategy training based on O'Malley and Chamot's theory, including the concept, value and goals of strategy training and approaches to such training.
文摘In the context of quality education,a wider exploration of physical education has been carried out,but at the same time higher requirements have been put forward for school sports courses.It is essential to pay attention to the teaching and training of physical knowledge and skills in physical education training as well as cultivate the core physical literacy of primary school students.The core quality of physical education is the main part of the basic quality of primary and middle school students,which is of great significance to their learning and development.This article will explore the training methods of primary and middle school students’basic quality in school physical education courses for reference.
基金This work was supported in part by the National Natural Science Foundation of China under Grant 61772561,author J.Q,http://www.nsfc.gov.cn/in part by the Degree&Postgraduate Education Reform Project of Hunan Province under Grant 2019JGYB154,author J.Q,http://xwb.gov.hnedu.cn/+6 种基金in part by the Postgraduate Excellent teaching team Project of Hunan Province under Grant[2019]370-133,author J.Q,http://xwb.gov.hnedu.cn/in part by the Science Research Projects of Hunan Provincial Education Department under Grant 18A174,author X.X,http://kxjsc.gov.hnedu.cn/in part by the Science Research Projects of Hunan Provincial Education Department under Grant 19B584,author Y.T,http://kxjsc.gov.hnedu.cn/in part by the Natural Science Foundation of Hunan Province(No.2020JJ4140),author Y.T,http://kjt.hunan.gov.cn/in part by the Natural Science Foundation of Hunan Province(No.2020JJ4141),author X.X,http://kjt.hunan.gov.cn/in part by the Key Research and Development Plan of Hunan Province under Grant 2019SK2022,author Y.T,http://kjt.hunan.gov.cn/in part by the Graduate Science and Technology Innovation Fund Project of Central South University of Forestry and Technology under Grant CX2020107,author Q.Z,https://jwc.csuft.edu.cn/。
文摘The existing safety helmet detection methods are mainly based on one-stage object detection algorithms with high detection speed to reach the real-time detection requirements,but they can’t accurately detect small objects and objects with obstructions.Therefore,we propose a helmet detection algorithm based on the attention mechanism(AT-YOLO).First of all,a channel attention module is added to the YOLOv3 backbone network,which can adaptively calibrate the channel features of the direction to improve the feature utilization,and a spatial attention module is added to the neck of the YOLOv3 network to capture the correlation between any positions in the feature map so that to increase the receptive field of the network.Secondly,we use DIoU(Distance Intersection over Union)bounding box regression loss function,it not only improving the measurement of bounding box regression loss but also increases the normalized distance loss between the prediction boxes and the target boxes,which makes the network more accurate in detecting small objects and faster in convergence.Finally,we explore the training strategy of the network model,which improves network performance without increasing the inference cost.Experiments show that the mAP of the proposed method reaches 96.5%,and the detection speed can reach 27 fps.Compared with other existing methods,it has better performance in detection accuracy and speed.
基金supported by Beijing Natural Science Foundation of China(L201023)the Natural Science Foundation of China(62076030)。
文摘Image captioning refers to automatic generation of descriptive texts according to the visual content of images.It is a technique integrating multiple disciplines including the computer vision(CV),natural language processing(NLP)and artificial intelligence.In recent years,substantial research efforts have been devoted to generate image caption with impressive progress.To summarize the recent advances in image captioning,we present a comprehensive review on image captioning,covering both traditional methods and recent deep learning-based techniques.Specifically,we first briefly review the early traditional works based on the retrieval and template.Then deep learning-based image captioning researches are focused,which is categorized into the encoder-decoder framework,attention mechanism and training strategies on the basis of model structures and training manners for a detailed introduction.After that,we summarize the publicly available datasets,evaluation metrics and those proposed for specific requirements,and then compare the state of the art methods on the MS COCO dataset.Finally,we provide some discussions on open challenges and future research directions.
基金financially supported by the Key Project of National Natural Science Foundation of China (No. 41930431)the Project of National Natural Science Foundation of China (Nos. 41904121, 41804133, and 41974116)Joint Guidance Project of Natural Science Foundation of Heilongjiang Province (No. LH2020D006)
文摘Based on the CNN-LSTM fusion deep neural network,this paper proposes a seismic velocity model building method that can simultaneously estimate the root mean square(RMS)velocity and interval velocity from the common-midpoint(CMP)gather.In the proposed method,a convolutional neural network(CNN)Encoder and two long short-term memory networks(LSTMs)are used to extract spatial and temporal features from seismic signals,respectively,and a CNN Decoder is used to recover RMS velocity and interval velocity of underground media from various feature vectors.To address the problems of unstable gradients and easily fall into a local minimum in the deep neural network training process,we propose to use Kaiming normal initialization with zero negative slopes of rectifi ed units and to adjust the network learning process by optimizing the mean square error(MSE)loss function with the introduction of a freezing factor.The experiments on testing dataset show that CNN-LSTM fusion deep neural network can predict RMS velocity as well as interval velocity more accurately,and its inversion accuracy is superior to that of single neural network models.The predictions on the complex structures and Marmousi model are consistent with the true velocity variation trends,and the predictions on fi eld data can eff ectively correct the phase axis,improve the lateral continuity of phase axis and quality of stack section,indicating the eff ectiveness and decent generalization capability of the proposed method.
基金supported by the National Basic Research Program of China (Grant No. 2012CB725400)the National Natural Science Foundation of China (Grant No. 71131001-1)the Research Foundation of State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,China (Grant Nos. RCS2012ZZ001 and RCS2012ZT001)
文摘In this paper, we propose a new formula of the real-time minimum safety headway based on the relative velocity of consecutive trains and present a dynamic model of high-speed passenger train movements in the rail line based on the proposed formula of the minimum safety headway. Moreover, we provide the control strategies of the high-speed passenger train operations based on the proposed formula of the real-time minimum safety headway and the dynamic model of highspeed passenger train movements. The simulation results demonstrate that the proposed control strategies of the passenger train operations can greatly reduce the delay propagation in the high-speed rail line when a random delay occurs.
文摘With my country's entry into the WTO,transnational communication has become more frequent.However,the lack of cross-cultural awareness in cross-cultural communication will cause communication barriers.Therefore,in the translation teaching of college English,attention should be paid to cultivating students'cross-cultural awareness and enhancing their ability in cross-cultural communication.Based on this,this article explains the significance of cross-cultural awareness to college English translation teaching,and analyzes the problems existing in the process of college English translation teaching,and finally proposes ways and strategies to cultivate cross-cultural awareness in college English translation teaching.Provide some reference value for workers in this field.