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On the Teaching Design of Graduates’EAP Course:Enhancing Language Proficiency and Critical Thinking Skills
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作者 LIU Yuan 《Sino-US English Teaching》 2024年第5期238-241,共4页
This paper explores the integration of the bridge-in,objectives,pre-assessment,participatory activities,post-assessment and summary(BOPPPS)teaching model within the context of the post-graduates Academic English cours... This paper explores the integration of the bridge-in,objectives,pre-assessment,participatory activities,post-assessment and summary(BOPPPS)teaching model within the context of the post-graduates Academic English course.It discusses how this structured approach can effectively enhance students’language proficiency,foster critical thinking skills,and align with the multifaceted objectives of advanced English language education.The study provides a detailed examination of each BOPPPS component as applied to the post-graduates Academic English curriculum,supported by theoretical underpinnings and practical implications. 展开更多
关键词 Academic English course BOPPPS teaching model language proficiency critical thinking active learning
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Six-Dimensional Guidance: The Strategies of Thinking Quality Cultivation in Senior High School English Discourse Learning
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作者 Junjie Sun 《Journal of Contemporary Educational Research》 2024年第3期237-245,共9页
Taking the discourse learning of the new senior high school English textbook published by the People’s Education Press as an example,combined with the“six-dimensional guidance”deep reading strategy,and through the ... Taking the discourse learning of the new senior high school English textbook published by the People’s Education Press as an example,combined with the“six-dimensional guidance”deep reading strategy,and through the six-skill training strategies of“memory skill training,understanding skill training,application skill training,analytical skill training,evaluation skill training,creative skill training,”this paper aims to cultivate students’thinking profundity,logic,flexibility,sensitivity,criticality,and originality.It also promotes the real implementation of senior high school English deep reading that points to the cultivation of thinking quality in classroom teaching,and realizes the transformation from“conventional reading”to“deep reading”that reflects the core literacy of the discipline. 展开更多
关键词 Six-dimensional guidance High school English Discourse learning thinking quality Strategy
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From the mathematical model to the patient: The scientific and human aspects of artificial intelligence in gastrointestinal surgery
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作者 Javier Arredondo Montero 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第6期1517-1520,共4页
Recent medical literature shows that the application of artificial intelligence(AI)models in gastrointestinal pathology is an exponentially growing field,with pro-mising models that show very high performances.Regardi... Recent medical literature shows that the application of artificial intelligence(AI)models in gastrointestinal pathology is an exponentially growing field,with pro-mising models that show very high performances.Regarding inflammatory bowel disease(IBD),recent reviews demonstrate promising diagnostic and prognostic AI models.However,studies are generally at high risk of bias(especially in AI models that are image-based).The creation of specific AI models that improve diagnostic performance and allow the establishment of a general prognostic fo-recast in IBD is of great interest,as it may allow the stratification of patients into subgroups and,in turn,allow the creation of different diagnostic and therapeutic protocols for these patients.Regarding surgical models,predictive models of post-operative complications have shown great potential in large-scale studies.In this work,the authors present the development of a predictive algorithm for early post-surgical complications in Crohn's disease based on a Random Forest model with exceptional predictive ability for complications within the cohort.The pre-sent work,based on logical and reasoned,clinical,and applicable aspects,lays a solid foundation for future prospective work to further develop post-surgical prognostic tools for IBD.The next step is to develop in a prospective and mul-ticenter way,a collaborative path to optimize this line of research and make it applicable to our patients. 展开更多
关键词 Survivor bias Data analysis Machine learning ETHICS Critical thinking POSTSURGICAL COMPLICATIONS Inflammatory bowel disease Gastrointestinal surgery
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An Empirical Study of the Effect of Inquiry Teaching on the Development of High School Students'Critical Thinking Under the New Curriculum Standards
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作者 Chen Yilong Peng Jia 《Contemporary Social Sciences》 2023年第2期130-145,共16页
The Ministry of Education of the People’s Republic of China has issued three guideline documents to encourage inquiry teaching to help students develop their ability to question,which is a defining feature of critica... The Ministry of Education of the People’s Republic of China has issued three guideline documents to encourage inquiry teaching to help students develop their ability to question,which is a defining feature of critical thinking.Two of the documents have clearly stated that English subject teaching should focus on building students’thinking capacity.Critical thinking is an essential feature of building thinking capacity and a key element of the core competencies the English subject seeks to cultivate.This research measures the performance of students of two high school classes in the exams conducted at the beginning,in the middle,and at the end of the experiment period during which inquiry teaching was applied to enhance students’critical thinking ability.The experiment results show that inquiry teaching can improve students’academic performance in English study and help them better develop their language skills.The implementation of the inquiry design in teaching listening,reading,and writing conforms to the law that governs the development of critical thinking,and the adoption of inquiry teaching can promote the development of critical thinking. 展开更多
关键词 new curriculum standards inquiry method high school English learning critical thinking
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The Effectiveness of Using Constructive Learning Strategies in Teaching English Language on Developing the Achievement of Grammar, Translation, and Critical Thinking Skills for the Third Grade Intermediate Students
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作者 Dr. Fahad Majed A1Shareef 《Sino-US English Teaching》 2015年第9期701-720,共20页
The study aimed to reveal the effectiveness of the integration between some constructive learning strategies in teaching a unit of the English language course to collect translation skills, using grammar, and the acqu... The study aimed to reveal the effectiveness of the integration between some constructive learning strategies in teaching a unit of the English language course to collect translation skills, using grammar, and the acquisition of critical thinking skills for intermediate third grade students in Mecca. Also, it aimed to acknowledge the statistical differences between the modified averages for the study sample groups degrees in the dimensional collecting of grammar and translation skills at the knowledge of the grammar level and using it, and at the macro level for collecting translation and grammar skills after adjusting the old collecting, as well as the knowledge of the statistical differences between the modified averages for the study sample groups in the total telemetric for the critical thinking skills after adjusting the old collecting. To achieve the study objectives, the researcher used the semi-experimental method that had several experimental groups (four groups), and applied it to a sample of intermediate third-grade students in the city of Makkah (99 students) in teaching the unit of the English language course, which is (Healthy Eating) in the second semester in 2011/2012. After using the appropriate statistical methods, the study came to a result that there are no statistically significant differences in the old implementation for the test of skills of academic achievement of grammar, translation, and critical thinking skills, and that there are statistically significant differences in the new implementation due to the four strategies. According to the results of the study, the researcher recommended a number of recommendations including: the necessity to focus on the constructive theory in teaching English language skills, the importance of expanding the use of the suggested integrative oriented and its development in the field of English language teaching, to hold an intensive training courses for teachers of the English language to train them on using the suggested integrative strategy, the emphasis on the importance of the curriculum activities which focus on the integration between the constructive learning strategies, the importance of expanding of scientific research in the field of integrative strategies, and the development of synthesis methods that combine two strategies or more. 展开更多
关键词 constructive learning critical thinking third grade intermediate students
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The Correlation Study between Thinking Styles and English-Speaking Learning Strategies of Junior School Students under the Background of “Double Reduction” Policy
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作者 Dan Ren 《教育研究前沿(中英文版)》 2022年第1期38-47,共10页
Based on Cognitive Style Theory,Oxford’s Speaking Learning Theory and Communicative Competence Theory,this paper adopts questionnaire method,uses Sternberg’s Thinking Style Inventory modified by Zhang Lifang,as well... Based on Cognitive Style Theory,Oxford’s Speaking Learning Theory and Communicative Competence Theory,this paper adopts questionnaire method,uses Sternberg’s Thinking Style Inventory modified by Zhang Lifang,as well as Oxford’s Learning Strategies Scale,and combines with the actual situation of junior high school students’oral learning to design the questionnaire of speaking learning strategies.Eighth graders of a junior middle school in Sichuan Province are randomly selected as the research object.The statistical tool SPSS23.0 is used to conduct the descriptive analysis and Pearson correlation analysis of the questionnaire results to explore the overall situation of junior high school students’thinking styles and the use of English-speaking learning strategies as well as their correlation.According to the research,junior high school students generally tend to executive style,liberal style,conservative style,legislative style,hierarchic style.The use of speaking learning strategies is at an average level.They tend to use memory speaking strategies,social speaking strategies,affective speaking strategies,and cognitive speaking strategies.As a whole,there is a relatively significant correlation between thinking styles and speaking learning strategies.Specifically,there is a partial correlation between thinking styles and speaking learning strategies. 展开更多
关键词 “Double Reduction”Policy thinking Styles Speaking learning Strategies Descriptive Analysis Correlation Analysis
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Revisiting Educational Issues in the Age of Generative Artificial Intelligence
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作者 Zhengyu Yang 《Journal of Contemporary Educational Research》 2024年第1期159-164,共6页
The emergence of generative artificial intelligence(AI)has had a huge impact on all areas of life,including the field of education.AI can assist teachers in cultivating talents and promoting personalized learning and ... The emergence of generative artificial intelligence(AI)has had a huge impact on all areas of life,including the field of education.AI can assist teachers in cultivating talents and promoting personalized learning and teaching,but it also prevents individuals from thinking independently and creatively.In the era of generative AI,the rapid development of technology and its significant impact on the field of education are inevitable.There are many educational issues related to it,such as teaching methods,student training goals,teaching philosophy and purposes,and other educational issues,that require re-conceptualization and review. 展开更多
关键词 Generative artificial intelligence Educational philosophy Training objectives Creative thinking Personalized learning
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The application of machine learning under supervision in identification of shale lamina combination types——A case study of Chang 7_(3)sub-member organic-rich shales in the Triassic Yanchang Formation,Ordos Basin,NW China 被引量:3
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作者 Yuan-Yuan Zhang Ke-Lai Xi +5 位作者 Ying-Chang Cao Bao-Hai Yu Hao Wang Mi-Ruo Lin Ke Li Yang-Yang Zhang 《Petroleum Science》 SCIE CAS CSCD 2021年第6期1619-1629,共11页
Organic rich laminated shale is one type of favorable reservoirs for exploration and development of continental shale oil in China.However,with limited geological data,it is difficult to predict the spatial distributi... Organic rich laminated shale is one type of favorable reservoirs for exploration and development of continental shale oil in China.However,with limited geological data,it is difficult to predict the spatial distribution of laminated shale with great vertical heterogeneity.To solve this problem,taking Chang 73 sub-member in Yanchang Formation of Ordos Basin as an example,an idea of predicting lamina combinations by combining'conventional log data-mineral composition prediction-lamina combination type identification'has been worked out based on machine learning under supervision on the premise of adequate knowledge of characteristics of lamina mineral components.First,the main mineral components of the work area were figured out by analyzing core data,and the log data sensitive to changes of the mineral components was extracted;then machine learning was used to construct the mapping relationship between the two;based on the variations in mineral composition,the lamina combination types in typical wells of the research area were identified to verify the method.The results show the approach of'conventional log data-mineral composition prediction-lamina combination type identification'works well in identifying the types of shale lamina combinations.The approach was applied to Chang 73 sub-member in Yanchang Formation of Ordos Basin to find out planar distribution characteristics of the laminae. 展开更多
关键词 Organic-rich shale Laminae combination Conventional logs Machine learning Ordos Basin
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The Influence of Blending Learning on Undergraduates’Critical Thinking Disposition:A Quasi Experimental Study
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作者 Yongmei Hou 《Journal of Educational Theory and Management》 2021年第1期74-78,共5页
Objective:To explore the influence of blending learning on the critical thinking disposition among undergraduates.Methods:Two undergraduate classes majoring in Applied Psychology with similar level of critical thinkin... Objective:To explore the influence of blending learning on the critical thinking disposition among undergraduates.Methods:Two undergraduate classes majoring in Applied Psychology with similar level of critical thinking disposition were selected as the research subjects.Class A(106 students)was the experimental class,and class B(131 students)was the control class.During the research period of one semester(four months),the following measures were implemented for the two classes.The control class studied Developmental Psychology under the conventional teaching methods and procedures,while the experimental class studied Developmental Psychology according to the requirements and procedures of blending learning.The two classes were investigated with Critical Thinking Disposition Inventory-Chinese Version(CTDI-CV)at the beginning and end of the course.Results:At the beginning of the course,the total scores of CTDI-CV of the two classes were(217.33±14.90)and(218.31±16.29),respectively,with no significant difference(P>0.05).At the end of the course,the total scores of CTDI-CV of the experimental class and the control class were(237.84±17.53)and(224.22±17.52),respectively,and the difference was statistically significant(P<0.001).Conclusion:Blending learning may have a positive effect in improving the critical thinking disposition in undergraduates. 展开更多
关键词 Blending learning Critical thinking disposition UNDERGRADUATES Quasi experimental study
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高中英语阅读教学中融合批判性思维培养与语言学习的实践探索——以人教版必修二Unit 1 Reading and Thinking为例 被引量:1
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作者 郑春艳 《吉林省教育学院学报》 2023年第12期108-112,共5页
思维品质的发展以语言能力为基础,又推动语言能力的发展。批判性思维作为衡量思维品质的一项重要指标,对学生的语言能力产生很大影响。本文旨在明确培养批判性思维的意义和可行性基础上,探索在阅读教学中将批判性思维培养融入语言学习... 思维品质的发展以语言能力为基础,又推动语言能力的发展。批判性思维作为衡量思维品质的一项重要指标,对学生的语言能力产生很大影响。本文旨在明确培养批判性思维的意义和可行性基础上,探索在阅读教学中将批判性思维培养融入语言学习的策略:逻辑先行,有理有据,引导学生大胆提出批判性的问题,通过逻辑推理解决问题;理性思考,判断观点,基于深入的文本分析,引导学生探究文本深层的隐含意义及文本信息间的逻辑关联,在理性分析文本信息后,有理有据地发表观点;语言运用,发展思维,在文本主题相关的情境中,对不同的文化形成审慎的包容。 展开更多
关键词 语言学习 思维品质 批判性思维
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Advantages and Disadvantages of Fragmented Learning and Recommendations 被引量:2
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作者 Jie ZHU Ping CHEN Wenjun JIA 《Asian Agricultural Research》 2019年第4期87-88,92,89,共4页
The development of information technology has changed people's learning methods. Fragmented learning,as an informal learning method,has become an important way to accept new knowledge and learn new technologies. T... The development of information technology has changed people's learning methods. Fragmented learning,as an informal learning method,has become an important way to accept new knowledge and learn new technologies. Through analyzing the connotation,characteristics,and advantages and disadvantages of fragmented learning,this paper came up with reasonable recommendations for fragmented learning. To truly become systematic and holistic knowledge,fragmented knowledge must be explored,understood,integrated and internalized. This paper is expected to play an important guiding role in building a lifelong learning society. 展开更多
关键词 Fragmented learning Fragmented INFORMATION Advantages and disadvantages Fragmented thinking Feasible RECOMMENDATIONS
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The Application of Problem Based Learning in Undergraduate Nursing Education: A Strategy for Curriculum Reform 被引量:1
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作者 Tan Kan Ku Michael Ha 《Journal of Biosciences and Medicines》 2016年第6期52-59,共8页
Background: Problem based learning (PBL) is an innovative way of delivering instruction in which problems are used as the basis of learning. Problem based learning was developed in the 1960s by Harold Barrows at McMas... Background: Problem based learning (PBL) is an innovative way of delivering instruction in which problems are used as the basis of learning. Problem based learning was developed in the 1960s by Harold Barrows at McMaster University Medical School in Canada. Since then, PBL had been im-plemented as a teaching method in other reputable education institutions internationally, includ-ing nursing education. Curriculum reform is proposed through PBL in conjunction with patient simulation in undergraduate nursing education. The first author, Tan Kan Ku, PhD Candidate, MHS (Transcultural Mental Health—by Research) worked as a Registered Nurse for more than two decades internationally in England, New Zealand, Saudi Arabia and Australia, where she worked as a Case Manager in Community Mental Health Rehabilitation Program. Since 2001, she focused on nurse education and research into the stigma of mental illness from a cross-cultural perspective. Currently, she teaches Mental Health, Cultural Diversity and Research in the Diploma of Nursing course at Victoria University in Melbourne, Australia, while completing her PhD thesis for examination at Charisma University. The second author, Dr. Michael Ha, FSA, MAAA, CFA, CPA (Australia) FRM, PRM, LLM, is the Founding Director of the MSc Financial Mathematics programme at Xian Jiaotong-Liverpool University. He was previously Vice President of Strategic Business In-itiatives Units at ING Life Insurance in its Taiwan operation. Ninety percent of his students are enrolled in the Financial Mathematics programme. They learn not only mathematics and statistics theories but also their applications in the Finance and Investment areas, especially Portfolio Con-struction and Financial Risk Management. Creating a real-world Finance work environment in university lecture-halls embracing theories and practice, Dr. Ha strongly believes the PBL method can be employed in the Financial Mathematics training agenda so students can be better-prepared for work. Students are no longer instructed-learners but active thinkers and problem-solvers. Conclusion: Educators in fields such as Medical, Nursing, Engineering, Financial Mathematics, Ac-counting, Computing, etc., need to be prepared to change their teaching philosophy from didactic to problem solving for PBL to be implemented. Constructive alignment is recommended for curri-culum reform. 展开更多
关键词 Problem Based learning Critical thinking Patient Simulation Nurse Education CONSTRUCTIVISM
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Construction and Practice of a Practical Teaching System for Normal Universities Based on Ability Cultivation
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作者 Rui Gao Li Yang 《Open Journal of Applied Sciences》 2023年第10期1704-1713,共10页
This study aims to explore the effect of project-based teaching methods on improving students’ abilities in normal universities. This study delves into the practice teaching system based on ability training implement... This study aims to explore the effect of project-based teaching methods on improving students’ abilities in normal universities. This study delves into the practice teaching system based on ability training implemented in normal universities, examining the application of this teaching model in teacher education and the potential challenges it may encounter. Our case study reveals that the Project-Based Learning (PBL) approach can effectively transform students from passive recipients of knowledge into active problem solvers, thereby enhancing their critical thinking, problem-solving, teamwork, and communication skills. However, challenges do exist, including ensuring active participation from all students, providing equal opportunities for each student to develop and showcase their abilities, and completing complex projects within a limited timeframe. Therefore, teachers may need to adjust their teaching strategies, and schools need to provide more resources and support. These adjustments can help the practice teaching system based on ability training better serve teacher education and offer students a higher-quality educational experience. 展开更多
关键词 Ability Training Practice Teaching Project-Based learning Critical thinking Problem Solving
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Effects of ginsenoside of stem and leaf combined with choline on learning and memory ability of rat models with Alzheimer diseases 被引量:1
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作者 Xiaomin Zhao Xianglin Xie +3 位作者 Zuoli Xia Yunsheng Gao Yuyun Zhu Hongxia Gu 《Neural Regeneration Research》 SCIE CAS CSCD 2006年第4期331-334,共4页
BACKGROUND: Central adrenergic nerve and 5-serotonergic nerve can influence central cholinergic nerve on learning and memory and make easy for study; however, ginsenoside of stem and leaf (GSL) can improve function... BACKGROUND: Central adrenergic nerve and 5-serotonergic nerve can influence central cholinergic nerve on learning and memory and make easy for study; however, ginsenoside of stem and leaf (GSL) can improve functions of central adrenergic nerve; moreover, 5-serotonergic nerve and the combination with choline can produce synergistic effect and enhance learning and memory ability so as to improve learning and memory disorder of patients with Alzheimer disease (AD). OBJECTIVE : To observe the effects of GSL combining with choline on learning and memory of AD model rats DESIGN : Randomized grouping design and controlled animal study SETIING : Department of Pharmacology, Taishan Medical College MATERIALS : The experiment was carried out in the Pharmacological Department of Medical College of Jilin University from October 1996 to January 1997. Forty healthy male Wistar rats of clean grade were randomly divided into 5 groups, including sham-injury group, model group, GSL group, choline group and combination group, with 8 rats in each group. Main medications: GSL with the volume more than 92.8% was provided by Department of Chemistry, Norman Bethune Medical College of Jilin University. Panaxatriol, the main component, was detected with thin layer scanning technique and regarded as the index of GSL quality [(55±1)%, CV= 2%, n = 5]. Choline was provided by the Third Shanghai Laboratory Factory. METHODS : 150 nmol quinolinic acid was used to damage bilateral Meynert basal nuclei of adult rats so as to establish AD models. Rats in GSL, choline and combination groups were intragastric administrated with 400 mg/kg GSL, 200 mg/kg choline (20 mL/kg), and both respectively last for 17 days starting from two days before operation. Rats in sham-injury group and model group were perfused with the same volume of distilled water once in each morning for the same days. (1) Passive avoidance step-down test: Five minutes later, rats jumped up safe platform when they were shocked with 36 V alternating current. If rats jumped down from the platform and the feet touched railings, the response was wrong. Numbers of wrong response were recorded within 3 minutes, and then the test was redone after 24 hours. (2) Morris water-maze spatial localization task: Swimming from jumping-off to platform directly was regarded as right response. Additionally, 4 successively right responses were regarded as the standard. Each rat was trained 10 times a day with 120 s per time for 3 successive days. The interval was 30 s. Three days later, numbers of right response were recorded. The training times were increased to 30 for unlearned rats. (3) Measurement of activity of choline acetylase in cerebral cortex: Rats were sacrificed at 17 days after operation to obtain cerebral cortex to measure activity of choline acetylase with radiochemistry technique. (4) Synergistic effect: It was expressed as Q value: Q value = factual incorporative effect/anticipant incorporative effect; Q ≥ 1 was regarded as synergistic effect. Anticipant incorporative effect = (EA+EB-EA·EB), EA and EB were single timing effect, respectively in GSL group and choline group. E(step-down test and Morris water maze test) = (x in model group - factual value in medicine groups)/x in model group; E (activity of choline acetylase) = (factual value in medicine groups -xin model group)/xin model group. MAIN OUTCOME MEASURES : (1) Passive avoidance step-down test and Morris water-maze spatial localization task in the study of learning and memory; (2) activity of choline acetylase. RESULTS : All 40 rats were involved in the final analysis. (1) Passive avoidance response: At learning phase on first day and retesting phase on the next day, numbers of wrong responses within 3 minutes were more in model group than sham operation group, and there was significant difference [(5.88±1.46), (2.25±0.87) times; (2.63±1.06), (0.50±0.53) times; P 〈 0.01]; numbers of wrong responses within 3 minutes were less in combination group than model group, and there was significant difference [learning phase: (1.12±0.83), (5.88±1.46) times; retesting phase: (0.38±0.74), (2.63±1.06)times, P 〈 0.01]; moreover, effect was stronger than that in GSL group and choline group. The Q value was 1.07 and 1.59, respectively and it showed synergistic effect. Spatial localization task: Training times were more in model group than sham operation group, and there was significant difference [(2.9±2.5), (12.6±3.5) times; P 〈 0.01]. Training times were less in combination group than model group, and there was significant difference [(11.8±2.4), (27.9±2.5) times, P 〈 0.01]; moreover, effect was stronger than that in GSL group and choline group. The Q value was 1.07 and it showed synergistic effect. (3) Activity of choline acetylase: Activity was lower in model group than sham operation group, and there was significant difference [(30.56±8.33), (61.11 ±8.33) nkat/g; P 〈 0.01]. Activity was higher in combination group than model group and there was significant difference [(50.00±8.33), (30.56±8.33) nkat/g, P 〈 0.01];moreover, effect was stronger than that in GSL group and choline group. The Q value was 1.5 and it showed synergistic effect. CONCLUSZON: GSL in combination with choline can synergically improve the disorder of learning and memory of AD model rats. Its mechanism may be involved in enhancing the function of central cholinergic system. 展开更多
关键词 stem Effects of ginsenoside of stem and leaf combined with choline on learning and memory ability of rat models with Alzheimer diseases
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Effects of Problem-based English Writing Instruction on Thai Upper Secondary School Students' Critical Thinking Abilities and Argumentative Writing Skills
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作者 李轶博 《海外英语》 2016年第15期241-243,共3页
The objective of the study is to examine the effects of Problem based English writing instruction on Thai Upper secondary school students' critical thinking abilities and argumentative writing skill.In this study,... The objective of the study is to examine the effects of Problem based English writing instruction on Thai Upper secondary school students' critical thinking abilities and argumentative writing skill.In this study,the researcher constructed 18weeks' training in a prestigious secondary school M6 level.The instruments used in this research include lesson plans,writing assignments,instructional material and topics.Critical thinking pre- test and post test were used to measure students' critical thinking development.Scoring rubric was designed to measure students' argumentative writing development.The data were analyzed using mean,t-test,correlation through SPSS system.The results of the analyses reveal that 1) students who learn through Problem based English Writing Instruction gained significantly higher average scores on the critical thinking post test than the critical thinking pre-test at the significance level of 0.05 and the mean difference is 0.5 which is referred to large effect;2) students who learn through Problem based English Writing Instruction gained significantly higher average score on their fifth argumentative writing assignment than the average score of their first argumentative writing assignment at the significance level of 0.05,with the mean of the effect size at 0.84 which referred to large effect.Problem-based English writing instruction was proved to be an effective way in improving students' Critical thinking and argumentative writing. 展开更多
关键词 critical thinking argumentative writing Problem-based learning
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Winter Wheat Yield Estimation Based on Sparrow Search Algorithm Combined with Random Forest:A Case Study in Henan Province,China
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作者 SHI Xiaoliang CHEN Jiajun +2 位作者 DING Hao YANG Yuanqi ZHANG Yan 《Chinese Geographical Science》 SCIE CSCD 2024年第2期342-356,共15页
Precise and timely prediction of crop yields is crucial for food security and the development of agricultural policies.However,crop yield is influenced by multiple factors within complex growth environments.Previous r... Precise and timely prediction of crop yields is crucial for food security and the development of agricultural policies.However,crop yield is influenced by multiple factors within complex growth environments.Previous research has paid relatively little attention to the interference of environmental factors and drought on the growth of winter wheat.Therefore,there is an urgent need for more effective methods to explore the inherent relationship between these factors and crop yield,making precise yield prediction increasingly important.This study was based on four type of indicators including meteorological,crop growth status,environmental,and drought index,from October 2003 to June 2019 in Henan Province as the basic data for predicting winter wheat yield.Using the sparrow search al-gorithm combined with random forest(SSA-RF)under different input indicators,accuracy of winter wheat yield estimation was calcu-lated.The estimation accuracy of SSA-RF was compared with partial least squares regression(PLSR),extreme gradient boosting(XG-Boost),and random forest(RF)models.Finally,the determined optimal yield estimation method was used to predict winter wheat yield in three typical years.Following are the findings:1)the SSA-RF demonstrates superior performance in estimating winter wheat yield compared to other algorithms.The best yield estimation method is achieved by four types indicators’composition with SSA-RF)(R^(2)=0.805,RRMSE=9.9%.2)Crops growth status and environmental indicators play significant roles in wheat yield estimation,accounting for 46%and 22%of the yield importance among all indicators,respectively.3)Selecting indicators from October to April of the follow-ing year yielded the highest accuracy in winter wheat yield estimation,with an R^(2)of 0.826 and an RMSE of 9.0%.Yield estimates can be completed two months before the winter wheat harvest in June.4)The predicted performance will be slightly affected by severe drought.Compared with severe drought year(2011)(R^(2)=0.680)and normal year(2017)(R^(2)=0.790),the SSA-RF model has higher prediction accuracy for wet year(2018)(R^(2)=0.820).This study could provide an innovative approach for remote sensing estimation of winter wheat yield.yield. 展开更多
关键词 winter wheat yield estimation sparrow search algorithm combined with random forest(SSA-RF) machine learning multi-source indicator optimal lead time Henan Province China
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Estimation of Potato Biomass and Yield Based on Machine Learning from Hyperspectral Remote Sensing Data
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作者 Changchun Li Chunyan Ma +7 位作者 Haojie Pei Haikuan Feng Jinjin Shi Yilin Wang Weinan Chen Yacong Li Xiaowei Feng Yonglei Shi 《Journal of Agricultural Science and Technology(B)》 2020年第4期195-213,共19页
The estimation of potato biomass and yield can optimize the planting pattern and tap the production potential.Based on partial least square(PLSR),multiple linear regression(MLR),support vector machine(SVM),random fore... The estimation of potato biomass and yield can optimize the planting pattern and tap the production potential.Based on partial least square(PLSR),multiple linear regression(MLR),support vector machine(SVM),random forest(RF),BP neural network and other machine learning algorithms,the biomass estimation model of potato in different growth stages is constructed by using single variables such as original spectrum,first-order differential spectrum,combined spectrum index and vegetation index(VI)and their coupled combination variables.The accuracy of the models is compared and analyzed,and the best modeling method of biomass in different growth stages is selected.Based on the optimized modeling method,the biomass of each growth stage is estimated,and the yield estimation model of different growth stages is constructed based on the estimation results and the linear regression analysis method,and the accuracy of the model is verified.The results showed that in tuber formation stage,starch accumulation stage and maturity stage,the biomass estimation accuracy based on combination variable was the highest,the best modeling method was MLR and SVM,in tuber growth stage,the best modeling method was MLR,the effect of yield estimation is good.It provides a reference for the algorithm selection of crop biomass and yield models based on machine learning. 展开更多
关键词 BIOMASS YIELD POTATO combination spectral index vegetation index combination variables machine learning
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基于去偏置项SoftMax和紧致度量损失函数的牛脸识别方法
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作者 杨胜楠 赵建敏 +1 位作者 杨梅 赵宇飞 《黑龙江畜牧兽医》 CAS 北大核心 2024年第4期36-42,共7页
为了实现精准畜牧业生产及畜牧业保险理赔中牛只身份的准确识别,试验提出了基于去偏置项SoftMax和紧致度量损失函数的牛脸识别方法,即采用深度卷积神经网络(deep convolutional neural networks,DCNNs)模型提取特征,利用去偏置项SoftMa... 为了实现精准畜牧业生产及畜牧业保险理赔中牛只身份的准确识别,试验提出了基于去偏置项SoftMax和紧致度量损失函数的牛脸识别方法,即采用深度卷积神经网络(deep convolutional neural networks,DCNNs)模型提取特征,利用去偏置项SoftMax损失函数优化特征空间中的特征分布,提高特征线性可分辨性,解决特征归一化后在投影超平面上的重叠问题;采用紧致度量损失函数结合去偏置项SoftMax损失函数联合监督模型训练,使同类特征与类内特征的平均距离最小化,提高特征聚类的紧凑性和可辨识性,同时兼顾了类内样本分布的多样性;最后试验将本算法(去偏置项SoftMax和紧致度量损失函数联合监督算法)与ArcFace损失函数、标准SoftMax损失函数、去偏置项SoftMax损失函数、标准SoftMax损失函数结合紧致度量损失函数进行了性能对分分析。结果表明:本算法的识别准确率在所有模型中最高,为97.61%;且能对高相似度牛脸正确识别。说明基于去偏置项SoftMax和紧致度量损失函数的牛脸识别方法可满足牧场牛只身份识别要求。 展开更多
关键词 深度度量学习 身份识别 牛脸识别 去偏置项SoftMax损失函数 紧致度量损失函数 深度卷积神经网络
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Research on Dynamic Forecast of Flowering Period Based on Multivariable LSTM and Ensemble Learning Classification Task
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作者 Chao Chen Xingwei Zhang Shan Tian 《Agricultural Sciences》 2020年第9期777-792,共16页
The flowering forecast provides recommendations for orchard cleaning, pest control, field management and fertilization, which can help increase tree vigor and resistance. Flowering forecast is not only an important pa... The flowering forecast provides recommendations for orchard cleaning, pest control, field management and fertilization, which can help increase tree vigor and resistance. Flowering forecast is not only an important part of the construction of agro-meteorological index system, but also an important part of the meteorological service system. In this paper, by analyzing local meteorological data and phenological data of “Red Fuji” apples in Fen County, Linfen City, Shanxi Province, with the help of machine learning and neural networks, we proposed a method based on the combination of time series forecasting and classification forecasting is proposed to complete the dynamic forecasting model of local flowering in Ji County. Then, we evaluated the effectiveness of the model based on the number of error days and the number of days in advance. The implementation shows that the proposed multivariable LSTM network has a good effect on the prediction of meteorological factors. The model loss is less than 0.2. In the two-category task of flowering judgment, the idea of combining strategies in ensemble learning improves the effect of flowering judgment, and its AUC value increases from 0.81 and 0.80 of single model RF and AdaBoost to 0.82. The proposed model has high applicability and accuracy for flowering forecast. At the same time, the model solves the problem of rounding decimals in the prediction of flowering dates by the regression method. 展开更多
关键词 Multivariable LSTM Ensemble learning combination Strategy Random Forest ADABOOST
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How to Develop Students'Thinking and Learning Ability through Reading
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作者 许强 《海外英语》 2010年第11X期444-445,共2页
According to the purposes of reading,it is divided into two Parts:language learning and information acquiring. Information acquiring is based on the purpose of gaining knowledge and information,language learning is ba... According to the purposes of reading,it is divided into two Parts:language learning and information acquiring. Information acquiring is based on the purpose of gaining knowledge and information,language learning is based on the purpose of improving. The two parts supplement each other,Hence,language learning is based on information acquiring. The way of thinking in reading and the accuracy of understanding can improve students' English level. 展开更多
关键词 READING approach thinking learning ABILITY
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