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Oxidative stress constrains avian mate choice:Experimental evidence for song-and testosterone-mediated pathways in Zebra Finches(Taeniopygia castanotis) 认领 引用
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作者 Juan Wang Ning Ding +3 位作者 Yingying Liu Fangbing Liu Qingying Guo Dongmei Wan 《Avian Research》 SCIE CAS CSCD 2026年第3期795-805,共11页
Oxidative stress is proposed as a key physiological mediator of reproduction,yet the specific pathways through which it influences avian mate choice remain poorly understood.Here,we experimentally manipulated oxidativ... Oxidative stress is proposed as a key physiological mediator of reproduction,yet the specific pathways through which it influences avian mate choice remain poorly understood.Here,we experimentally manipulated oxidative stress levels in male Zebra Finches(Taeniopygia castanotis)through BSO-induced glutathione depletion(high oxidative stress)or dietary supplementation with CoQ10(low oxidative stress).Female mate preference was then assessed in a three-choice arena,and male phenotypes—including coloration(cheek,chest,beak,flank),song characteristics(syllable duration,frequency parameters),body condition,circulating testosterone and gonadotropin-releasing hormone levels—were systematically quantified.Results showed that oxidative stress significantly reduced male attractiveness,as females spent less time with BSO-treated males(P<0.001)and exhibited a stronger preference for CoQ10-supplemented ones(P=0.01).These effects were not attributable to coloration or body conditions:although multiple coloration parameters(cheek brightness,chest brightness,beak chroma,cheek hue)were altered(all P<0.05)and body condition(BSO:0.31±0.17,Control:-0.21±0.18,P<0.05)were improved,these changes did not directly mediate mating decisions.Piecewise structural equation modeling revealed two primary indirect pathways:a song-mediated pathway,in which oxidative stress impaired song structure(t=-2.685,P=0.009),thereby reducing attractiveness;and a testosterone-mediated pathway,in which stress induced testicular damage and lowered testosterone levels(t=-2.311,P=0.024),further diminishing male appeal.This multifaceted assault,from internal physiological state to external secondary sexual traits,collectively diminishes overall male attractiveness.Our study provides a comprehensive mechanistic account of how oxidative stress acts as a potent physiological constraint on sexual selection,advancing insight into the physiological constraints affecting sexual selection. 展开更多
关键词 Mate choice Oxidative stress Plumage color Song characteristics Testosterone levels
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Hyperparameter Optimisation and Comparative Analysis of Machine Learning Models for Travel Mode Choice Prediction 认领 引用
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作者 Mujahid Ali 《Computers, Materials & Continua》 SCIE EI 2026年第9期1946-1966,共21页
Understanding the determinants of travel mode choice(TMC)in urban contexts is essential for effective transport planning and policy development.Past studies predominantly employed traditional discrete choice models be... Understanding the determinants of travel mode choice(TMC)in urban contexts is essential for effective transport planning and policy development.Past studies predominantly employed traditional discrete choice models because of their simplicity,diversity,and high interpretability;however,they rely on restrictive assumptions.Although machine learning(ML)techniques have shown promising predictive capabilities,comparative assessments of traditional and ML approaches,particularly considering hyperparameter optimisation,remain limited.This study addresses this gap by comparing a traditional model with four ML algorithms:decision tree(DT),random forest(RF),support vector machine(SVM),and k-nearest neighbour(KNN).In addition,systematic hyperparameter optimisation is performed to evaluate its impact on predictive performance relative to default model settings.Feature importance analysis is also conducted to identify the key determinants of TMC.The analysis is based on a multi-dimensional,three-week household time-use and activity diary dataset comprising 508 individuals from 191 households in the Bandung Metropolitan Area,Indonesia.The results demonstrate that ML models outperform traditional methods,while hyperparameter optimisation substantially improves model performance across all considered algorithms against default models.Notably,the KNN model exhibits a 16.67%increase in accuracy,followed by the SVM model with an 11.15%improvement.Among the optimised evaluated models,SVM achieves the best overall performance,with a macro-averaged accuracy of 0.588 and a precision of 0.591.Feature importance analysis reveals that total travel time is the most influential determinant of TMC.These findings highlight the importance of model tuning and hyperparameter optimisation in ML-based TMC prediction and provide insights into the factors shaping travel behaviour.The outcomes can support more informed decision-making in urban transport planning and policy formulation. 展开更多
关键词 Travel mode choice hyperparameter optimisation random forest travel behaviour sustainable transportation
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Classification of Influencing Factors and Mechanisms Underlying Emotion Regulation Choice 认领 引用
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作者 Shi-Min Chen Li-Li Wang 《International Journal of Mental Health Promotion》 2026年第6期70-95,共26页
Backgrounds:The factors influencing emotion regulation choice(ERC)are numerous,raising the question of how to classify them systematically.Methods:This study proposed a framework of four first-order factors—the emoti... Backgrounds:The factors influencing emotion regulation choice(ERC)are numerous,raising the question of how to classify them systematically.Methods:This study proposed a framework of four first-order factors—the emotion to be regulated,emotion regulation goals,emotion regulation resources,and psychosocial context—by integrating several key theories of ERC,including the Action Control Theory of Emotion Regulation,the Extended Process Model of Emotion Regulation,the Process-specific Timing Framework Theory,the Selection,Optimization,and Compensation model of Emotion Regulation,and the Emotion as Social Information Theory.Results:This research also provided a detailed examination of the effects of multiple second-order and third-order factors—those either unaddressed or insufficiently covered in previous reviews—on ERC.These factors included the nature of the emotion,emotional intensity,hedonic versus instrumental goals,cognitive factors(such as cognitive resources,executive functions,and cognitive abilities),personality(encompassing the Big Five Personality,attachment,and self-esteem),social support,and interpersonal contexts.Conclusion:Additionally,how gender and age exert an influence on ERC through differences in goals and cognition was examined.Future studies can further explore the interactive effect of different factors on ERC,and the neural correlates of ERC. 展开更多
关键词 Emotion regulation choice emotional intensity emotional regulation goal emotional regulation resource psychosocial context
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The Dilemmas and Choices of Teaching Content for Economic Law in the Accounting Major of Undergraduate Colleges 认领 引用
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作者 Jingjing Xu 《Proceedings of Business and Economic Studies》 2026年第3期68-74,共7页
Economic law is one of the compulsory subjects for the national Certified Public Accountant Examination.The control of its teaching content is equivalent to the direct control of teaching quality,which determines whet... Economic law is one of the compulsory subjects for the national Certified Public Accountant Examination.The control of its teaching content is equivalent to the direct control of teaching quality,which determines whether students can pass the examination and gain a comprehensive understanding of the subject.In the teaching of economic law for the accounting major in undergraduate colleges,how to optimize teaching content and textbook selection,and strengthen the professional competence of accounting students is the focus of this paper.This paper expounds the practical dilemmas of the teaching content of economic law for the accounting major in undergraduate colleges and puts forward a series of feasible and effective selection paths,hoping to provide more references for front-line educators. 展开更多
关键词 Undergraduate colleges Accounting major Economic Law Teaching content Dilemmas Choices
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Job Preferences of Centers for Disease Control and Prevention Workers:A Discrete Choice Experiment in China 认领 引用
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作者 Yan Guo Hanlin Nie +6 位作者 Hao Chen Stephen Nicholas Elizabeth Maitland Sisi Chen Lieyu Huang Xiumin Zhang Xuefeng Shi 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2025年第6期740-750,共11页
Objective This study explored the job choice preferences of Center for Disease Prevention and Control(CDC)workers to provide CDC management information and recommendations for optimizing employee retention and motivat... Objective This study explored the job choice preferences of Center for Disease Prevention and Control(CDC)workers to provide CDC management information and recommendations for optimizing employee retention and motivation policies.Methods A discrete choice experiment was conducted in nine provinces across China.Seven key attributes were identified to analyze the job preferences of CDC workers.Mixed logit models,latent class models,and policy simulation tools were used.Results A valid sample of 5,944 cases was included in the analysis.All seven attributes significantly influenced the job choices of CDC workers.Heterogeneity analyses identified two main groups based on different levels of preference for attribute utility.Income-prioritizers were concerned with income and opportunities for career development,whereas bianzhi-prioritizers were concerned with bianzhi and welfare benefits.The policy simulation analysis revealed that income-prioritizers had a relatively higher sensitivity to multiple job preference incentives.Conclusion Income and bianzhi were the two key attributes influencing the job choices and retention preferences of CDC workers.Heterogeneity in job preferences was also identified.Based on the preference characteristics of different subgroups,policy content should be skewed to differentiate the importance of incentives. 展开更多
关键词 Job preferences CDC workers Discrete choice experiment China
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Evaluation of cyclists'preference on guardrails on urban roads:a stated choice analysis based on a panel mixed regret-based model 认领 引用
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作者 Yan Sun Zhongxiang Feng Dianchen Zhu 《Digital Transportation and Safety》 2025年第1期10-20,共11页
Cycling as a sustainable mode of transport has become more prominent in urban settings.However,the design of bicycle infrastructure,particularly the setup of guardrails,directly impacts cyclists'sense of security ... Cycling as a sustainable mode of transport has become more prominent in urban settings.However,the design of bicycle infrastructure,particularly the setup of guardrails,directly impacts cyclists'sense of security and comfort.This study assessed cyclists'preferences for different types of guardrails and how these guardrails influence perceived safety and comfort through a stated choice experiment.Cyclists were asked to choose among stepping stone guardrails,metal guardrails,and warning post guardrails under varying hypothetical scenarios,considering factors such as colored pavements,traffic volume,weather,and vehicle type of adjacent lanes.A random parameter utility model and random parameter regret model were adopted to explore the possible factors and choice of guardrails.The results revealed that increases in traffic volume and changes in colored pavements significantly heightened the likelihood of choosing warning post guardrails,indicating that cyclists prefer guardrails that offer a higher sense of security in areas with dense traffic.Moreover,younger cyclists and those with higher educational levels exhibited a preference for warning post guardrails,reflecting their greater safety needs and sensitivity to traffic environments.These findings provide empirical support for urban bicycle lane design and offer insights for the formulation of effective urban traffic safety policies. 展开更多
关键词 Cycling Stated choice analysis Sense of security Guardrails Random parameter model
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Combinatorial Model Involving Stochastic Choices of Destination, Mode and Route 认领 引用
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作者 ZHOU Xi zhao Management School, Shanghai Maritime University, Shanghai 200135, China 《Journal of Shanghai University(English Edition)》 2001年第2期171-176,共6页
Traffic assignment models are one of the basic tools for the analysis and design of transportation systems. However, the existing models have some defects. Considering the characteristics of Chinese urban mixed traffi... Traffic assignment models are one of the basic tools for the analysis and design of transportation systems. However, the existing models have some defects. Considering the characteristics of Chinese urban mixed traffic and the randomness of transportation information, the author develops a combinatorial model involving stochastic choices of destination, mode and route. Its uniqueness and equivalance are also proved by the optimization theory. 展开更多
关键词 destination choice mode choice route choice
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Estimating Isochrone Map Uncertainty for an Individual Cycle Commuter at Okanagan College, Kelowna, British Columbia, and Its Impact on Available Housing Choice 认领 引用
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作者 Markus Heinrichs 《Journal of Transportation Technologies》 2025年第1期75-94,共20页
Identification of variables that influence differences between predicted and observed cycling times for one cyclist commuting to Okanagan College (OC) was performed using principal components analysis. These data were... Identification of variables that influence differences between predicted and observed cycling times for one cyclist commuting to Okanagan College (OC) was performed using principal components analysis. These data were used to create a personalized predictive time algorithm, which was subsequently applied in an isochrone map format centered on OC. A 29% difference in the area within the 20-minute commuting time was estimated, suggesting that potential residential location choices made with inaccurate isochrone maps are inaccurate. A comparison with an isochron cycling map for Trinity College Dublin was made to emphasise differences in the impact/implications of this type of map in the promotion of sustainable transportation for a post-secondary institution. It is determined that these maps may misinform new community members as to areas of residential location choice. 展开更多
关键词 Principal Components Analysis Cartography Residential Choice Bicycle Campus Sustainability Planning
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Analysis of Gender Differences in Modal Choice among Residents of Coastal Communities of Yenagoa Metropolis in Bayelsa State, Nigeria 认领 引用
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作者 Ezekiel Ovuokerie Gunn Clement Ebizimor Deinne 《Journal of Transportation Technologies》 2025年第1期60-74,共15页
This study examined gender differences in modal choice among residents of coastal communities of Yenagoa metropolis in Bayelsa State, Nigeria. The Four-Step model of transportation planning and modal choice provided t... This study examined gender differences in modal choice among residents of coastal communities of Yenagoa metropolis in Bayelsa State, Nigeria. The Four-Step model of transportation planning and modal choice provided the theoretical basis for this study. A survey research design involving a stratified sampling technique was adopted. The descriptives on transport modes, amount and time spent revealed that 10 (76.9%) males and 3 (23.1%) females preferred bicycle as means of transportation, 7 (58.3%) males and 5 (41.7%) females preferred motorcycle, while a significant proportion 90 (53.9%) males and 77 (46.1%) females preferred tricycle, 80 (63.0%) males and 47 (37.0%) females preferred carsaxis, and 12 (46.2%) males and 14 (53.8%) females preferred mass transit bus. However, 14 (46.7%) males and 16 (53.3%) females in marshy terrain and coastal locations preferred canoes and boats. The result of the logistic regression model revealed that gender modal preference is more likely to be influenced by mode of transportation with a beta weight of 1.140, safety considerations 1.139, ownership of transport 1.135 and distance to place of work 1.073. Hence, this study recommends that a combination of these factors should be incorporated into transport planning to achieve effective transport planning and sustainable development in the Yenagoa metropolis. 展开更多
关键词 Gender Modal Choice Four-Step Transport Planning Model Stratified Sampling Binary Logistic Model Yenagoa Metropolis Bayelsa State
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Sickle Cell Trait in Kisangani: Prevalence and Opinion of Carriers towards the Choice of a Potential Carrier Spouse 认领 引用
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作者 Junior Lisi-Ankiene Burubu Jean-Jeannot Sihalikyolo Juakali +6 位作者 Noël Labama Otuli Jean-Didier Nguma Bosenge Teddy Habiragi Matega Yvette Ufoy Mungu Neema Jean-Marie Lukangi Demupondo Paul Kombi Kambale Gédéon Bosunga Katenga 《Journal of Biosciences and Medicines》 2025年第2期202-217,共16页
Introduction: Sickle cell disease is one of the most common autosomal recessive inherited diseases. Its prevalence is increasing due to the perpetuity of carriers of the trait who are able to marry. Women aged 18 to 3... Introduction: Sickle cell disease is one of the most common autosomal recessive inherited diseases. Its prevalence is increasing due to the perpetuity of carriers of the trait who are able to marry. Women aged 18 to 35 years constitute the most reproductive age group. This study was conducted with the aim of determining the prevalence of sickle cell trait among women aged 18 to 35 years and the attitude of women carriers towards the choice of a carrier spouse. Materials and methods: This was a cross-sectional descriptive study with analytical aims conducted from March to September 2024 in Kisangani. A total of 215 women aged 18 to 35 years presented for screening for sickle cell trait. This study described the following parameters: Sociodemographic data (age, level of education, socioeconomic level, marital status), obstetric and medical history (obstetric formula, sickle cell disease, high blood pressure, diabetes mellitus, asthma), knowledge of sickle cell disease (etiological classification, transmission, prevention, high-risk marriages, clinical manifestations, progression of the disease), attitude of the woman in relation to the choice of an AS spouse, as well as the reasons justifying each attitude. Results: The prevalence of sickle cell trait was 23.7% (51/215). A total of 64.3% of respondents had accepted the choice of spouse before confirmation of carrier status and 73.8% had refused after confirmation of carrier status. Choice was significantly related to age (p-value = 0.027), occupation (p-value = 0.015), parity (p-value = 0.039) and gesture (p-value = 0.034) before test. The ignorance of the union at risk was associated with the risk (p = 0.005;OR: 9.10;CI 95%: 2.03 - 4.81) of accepting the choice of a spouse carrying the trait. Conclusion: The prevalence of sickle cell trait among women aged 18 to 35 years in Kisangani remains within the limits of that of the general population. The choice of a spouse carrying sickle cell trait is associated with the woman’s age, her profession, parity, gestation and her knowledge about high-risk unions. Screening campaigns and health education sessions enable women carrying sickle cell trait to make a wise choice. 展开更多
关键词 Sickle Cell Trait Prevalence Attitude of Carriers Choice of Spouse
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Ethical Choices in All My Sons from the Perspective of Ethical Literary Criticism 认领 引用
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作者 LIU Si-yan 《Journal of Literature and Art Studies》 2025年第8期612-619,共8页
This study applies the basic theories of“Ethical Literary Criticism”proposed by Nie Zhenzhao to Arthur Miller’s play All My Sons,focusing on the ethical predicament Joe Keller faces in his specific ethical identity... This study applies the basic theories of“Ethical Literary Criticism”proposed by Nie Zhenzhao to Arthur Miller’s play All My Sons,focusing on the ethical predicament Joe Keller faces in his specific ethical identity within the ethical environment of his time.It further points out the process and the consequence of his ethical choices in the conflict between family interests and social responsibilities,so as to reveal the ethical teaching function of the play.Joe’s ethical predicament arises from the contradiction between his family roles and his desire for interests as a businessman.In this conflict,the interaction of the human factor and the animal factor within the“Sphinx factor”causes Joe to make two different ethical choices.Through Joe’s tragic fate,Miller reveals the ethical enlightenment in All My Sons:Individuals,families,and society are inextricably linked,so today’s citizens need to recognize their inherent social nature and fulfill ethical duties in both personal and social aspects.Miller uses the play to criticize the ethical ethos of 20th-century American society and calls on readers to reevaluate the instrumental rationality behind the American Dream. 展开更多
关键词 Ethical Literary Criticism All My Sons ethical predicament ethical choice Sphinx factor
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Ethical Choices of the Protagonist in My Life as a Foreign Country 认领 引用
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作者 YAN Ying 《Cultural and Religious Studies》 2025年第12期736-739,共4页
My Life as a Foreign Country is an Iraq War narrative by American veteran Brian Turner,recounting the protagonist Turner’s experiences in the Iraq War alongside the wartime experiences of his forefathers.As a descend... My Life as a Foreign Country is an Iraq War narrative by American veteran Brian Turner,recounting the protagonist Turner’s experiences in the Iraq War alongside the wartime experiences of his forefathers.As a descendant of a military family,the protagonist Turner makes ethical choices based on his ethical identity,elucidating the ethical concepts and dilemmas faced by Iraq War soldiers.This paper interprets the narrative from the perspective of literary ethics,analyzing the ethical choices made by the protagonist Turner to explain the underlying reasons and motivations,thereby revealing the ethical perplexities of American soldiers in modern warfare. 展开更多
关键词 My Life as a Foreign Country ethical choice literary ethics
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Europe’s Strategic Choices and the Future of China-EU Relations 认领 引用
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作者 WU HUIPING 《China Today》 2025年第6期51-53,共3页
While celebrating 50 years of diplomatic ties,China and the EU are deepening their strategic partnership to counter U.S.-China tensions and Europe’s own geopolitical and economic challenges.
关键词 strategic partnership U S China tensions China EU relations strategic choices geopolitical challenges economic challenges deepening their strategic partnership diplomatic ties
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Logit-based exit choice model of evacuation in rooms with internal obstacles and multiple exits 认领 引用 被引量：19
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作者 郭仁拥 黄海军 《Chinese Physics B》 SCIE EI CAS 2010年第3期101-107,共7页
A logit-based discrete choice model is proposed to study the exit choice behaviour of evacuees in rooms with internal obstacles and multiple exits. Several factors influencing the exit choice behaviour, including the ... A logit-based discrete choice model is proposed to study the exit choice behaviour of evacuees in rooms with internal obstacles and multiple exits. Several factors influencing the exit choice behaviour, including the information obtained by evacuees, the tendency of following others, the visibility and familiarity of exits and the physical conditions of nearby exits, are considered. Evacuees are allowed to re-select their target exits for minimizing the perceived disutility during evacuation process. Numerical results from applying the model to cellular automata simulation of evacuation are presented and the effects of some model parameters on evacuation time are investigated. 展开更多
关键词 exit choice evacuation logit-based discrete choice cellular automata
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Australian public preferences for the provision of medicinal cannabis:A discrete choice experiment 认领 引用
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作者 Katrina Gething Paul Scuffham +1 位作者 Richard Norman Daniel Erku 《Pharmacoeconomics and Policy》 2025年第2期73-83,共11页
Other than measuring public opinion,policy makers have not pursued the involvement of the Australian public in decisions about the provision of medicinal cannabis(MC).This research measures public preferences for the ... Other than measuring public opinion,policy makers have not pursued the involvement of the Australian public in decisions about the provision of medicinal cannabis(MC).This research measures public preferences for the provision of MC and the relationship of these preferences to current Australian policy.A total of 1166 Australian adults completed an online discrete choice experiment(DCE).The DCE consisted of 12 pairwise forced choice policy profiles per participant.Profile alternatives were described according to the attributes access,evidence,medical supervision,intoxicating ingredient,therapy format and cost,and were patient specific.Conditional logit(CL)and latent class analyses were conducted.Participants preferred MC to be prescribed at any time during a patient’s treatment plan and for costs to be subsidised.Oral formulations were preferred to raw flower forms.In general,the public preferred patients to be prescribed MC with low levels of tetrahydrocannabinol(THC).THC levels in MC were not important to the choices of males or when prescribing MC to patients with a terminal condition.Three response groups were found.Group 1(34.9%)preferred patients to be prescribed oral formulations of low-intoxicating MC when all other medications have failed and there is good evidence for its use.Group 2(40.3%)preferred MC to be available at any time of a patient’s treatment plan,and medical supervision or the level of intoxicating ingredient in the therapy was not important.Group 3(24.8%)were the only group to have no preferences for the subsidisation of MC costs.All groups were disinclined toward the prescription of raw cannabis flower.In general,public preferences do not completely align with current Australian policy.The public would likely support the Australian government’s liberal policy on MC for terminal patients. 展开更多
关键词 Medicinal cannabis Tetrahydrocannabinol Cannabidiol Population preferences Discrete choice experiment Health policy
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From Homo Economicus to the Rational Practitioner: Reconstructing Rational Choice Through Inner Cultivation in Journey to the West 认领 引用
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作者 Huimin Li Tiechen Qi 《Proceedings of Business and Economic Studies》 2025年第5期20-25,共6页
This paper examines the classic Chinese novel Journey to the West through the lens of rational choice theory,with a particular focus on the logic of cultivation and behavioral decision-making.By incorporating the noti... This paper examines the classic Chinese novel Journey to the West through the lens of rational choice theory,with a particular focus on the logic of cultivation and behavioral decision-making.By incorporating the notion of“inner cultivation”(xin xing xiulian)into the analytical framework,we introduce the concept of the“cultivating economic agent,”aiming to explore how rationality is generated,evolved,and transcended throughout the spiritual journey.The study argues that,in the context of Eastern culture,rationality is not merely an innate or static faculty but one that can be cultivated and transformed.Through textual analysis of the behavioral trajectories of Sun Wukong,Zhu Bajie,and Tang Sanzang,we uncover a structured behavioral logic of“goal orientation–institutional discipline–purification of the mind.”The findings suggest that although cultivation behaviors are not utilitarian decisions per se,they exhibit rational characteristics such as goal stability,autonomous will,and embedded incentives. 展开更多
关键词 Inner cultivation Rational choice Homo economicus Behavioral economics Journey to the West
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THE THREE LITTLE PIGS Hard work and smart choices are always best 认领 引用
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作者 Ruth Devlin 《空中英语教室（初级版．大家说英语）》 2025年第10期32-35,54,56,共4页
Find It Why was the third pig the smartest?nee upon a time,three little pigs lived with their mother.One day,she told them,"You are big now.Go build homes and take care of yourselves."So,the three pigs left ... Find It Why was the third pig the smartest?nee upon a time,three little pigs lived with their mother.One day,she told them,"You are big now.Go build homes and take care of yourselves."So,the three pigs left and went to find places to live.The first little pig didn't like to work hard.He found some straw. 展开更多
关键词 third pig hard work smart choices straw
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Joint analysis of urban shopping destination and travel mode choice accounting for potential spatial correlation between alternatives 认领 引用 被引量：1
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作者 林姚宇 丁川 +3 位作者 王耀武 刘超 崔愉晨 Sabyasachee Mishra 《Journal of Central South University》 SCIE EI CAS 2014年第8期3378-3385,共8页
In recent years,there have been important developments in the joint analysis of the travel behavior based on discrete choice models as well as in the formulation of increasingly flexible closed-form models belonging t... In recent years,there have been important developments in the joint analysis of the travel behavior based on discrete choice models as well as in the formulation of increasingly flexible closed-form models belonging to the generalized extreme value class.The objective of this work is to describe the simultaneous choice of shopping destination and travel-to-shop mode in downtown area by making use of the cross-nested logit(CNL) structure that allows for potential spatial correlation.The analysis uses data collected in the downtown areas of Maryland-Washington,D.C.region for shopping trips,considering household,individual,land use,and travel-related characteristics.The estimation results show that the dissimilarity parameter in the CNL model is 0.37 and significant at the 95% level,indicating that the alternatives have high spatial correlation for the short shopping distance.The results of analysis reveal detailed significant influences on travel behavior of joint choice shopping destination and travel mode.Moreover,a Monte Carlo simulation for a group of scenarios arising from transportation policies and parking fees in downtown area,was undertaken to examine the impact of a change in car travel cost on the shopping destination and travel mode switching.These findings have important implications for transportation demand management and urban planning. 展开更多
关键词 shopping destination travel mode choice joint choice cross-nested logit Monte Carlo simulation
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Male mate choice in livebearing fishes: an overview 认领 引用 被引量：2
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作者 Ingo SCHLUPP 《Current Zoology》 SCIE CAS CSCD 2018年第3期393-403,共11页
Although the majority of studies on mate choice focus on female mate choice, there is growing recognition of the role of male mate choice too. Male mate choice is tightly linked to 2 other phenomena： female competiti... Although the majority of studies on mate choice focus on female mate choice, there is growing recognition of the role of male mate choice too. Male mate choice is tightly linked to 2 other phenomena： female competition for males and ornamentation in females. In the current article, I review the existing literature on this in a group of fishes, Poeciliidae. In this group, male mate choice appears to be based on differences in female quality, especially female size, which is a proxy for fecundity. Some males also have to choose between heterospecific and conspecific females in the unusual mating system of the Amazon molly. In this case, they typically show a preference for conspecific females. Whereas male mate choice is relatively well documented for this family, female ornamentation and female competition are not. 展开更多
关键词 binary choice test fecundity female choice female size Gambusia guppy Poecilia preference function sexualselection Xiphophorus.
Discrete Choice Models and Artificial Intelligence Techniques for Predicting the Determinants of Transport Mode Choice--A Systematic Review 认领 引用
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作者 Mujahid Ali 《Computers, Materials & Continua》 SCIE EI 2024年第11期2161-2194,共34页
Forecasting travel demand requires a grasp of individual decision-making behavior.However,transport mode choice(TMC)is determined by personal and contextual factors that vary from person to person.Numerous characteris... Forecasting travel demand requires a grasp of individual decision-making behavior.However,transport mode choice(TMC)is determined by personal and contextual factors that vary from person to person.Numerous characteristics have a substantial impact on travel behavior(TB),which makes it important to take into account while studying transport options.Traditional statistical techniques frequently presume linear correlations,but real-world data rarely follows these presumptions,which may make it harder to grasp the complex interactions.Thorough systematic review was conducted to examine how machine learning(ML)approaches might successfully capture nonlinear correlations that conventional methods may ignore to overcome such challenges.An in-depth analysis of discrete choice models(DCM)and several ML algorithms,datasets,model validation strategies,and tuning techniques employed in previous research is carried out in the present study.Besides,the current review also summarizes DCM and ML models to predict TMC and recognize the determinants of TB in an urban area for different transport modes.The two primary goals of our study are to establish the present conceptual frameworks for the factors influencing the TMC for daily activities and to pinpoint methodological issues and limitations in previous research.With a total of 39 studies,our findings shed important light on the significance of considering factors that influence the TMC.The adjusted kernel algorithms and hyperparameter-optimized ML algorithms outperform the typical ML algorithms.RF(random forest),SVM(support vector machine),ANN(artificial neural network),and interpretable ML algorithms are the most widely used ML algorithms for the prediction of TMC where RF achieved an R2 of 0.95 and SVM achieved an accuracy of 93.18%;however,the adjusted kernel enhanced the accuracy of SVM 99.81%which shows that the interpretable algorithms outperformed the typical algorithms.The sensitivity analysis indicates that the most significant parameters influencing TMC are the age,total trip time,and the number of drivers. 展开更多
关键词 Machine learning techniques AI transport mode choice discrete choice model sustainable transportation
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