Temat: multinomial - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Statistical analysis of production quality, complete blood count, multi-extremal optimization i.e. about estimation of multinomial distrbution
Autorzy:: Zieliński, Ryszard
Tematy:: quality control, multinomial distribution; Pokaż więcej
Wydawca:: Polskie Towarzystwo Matematyczne
Powiązania:: https://bibliotekanauki.pl/articles/747856.pdf Link otwiera się w nowym oknie
Opis:: Artykuł nie zawiera streszczenia
The article contains no abstract
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Factors affecting the level of commercialization among households owning cattle. A case study of Makhado Municipality of Vhembe District, Limpopo Province, South Africa
Autorzy:: Minyuku, Xitshembiso Appointment
Belete, Abenet
Baloi, Vutomi Arone
Tematy:: commercialization
households
Multinomial Logistic Regression; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/2033354.pdf Link otwiera się w nowym oknie
Opis:: This study analyzed the factors affecting the level of commercialization among households owning cattle. The study was conducted at the Makhado Local Municipality of Vhembe District, Limpopo Province, South Africa. The study sampled 150 households owning cattle from five villages within the municipality. Data were collected through a structured questionnaire that was administered face-to-face to the respondents. For empirical reasons, the study used two analytical techniques, namely; Household Comecialisation Index and Multinomial Logistic Regression Model. Empirical results reveal that eight variables were significant in affecting the level of commercialization among households owning cattle. These variables are the marital status of household head, the age of the household head, source of income, the occupation of household, access to market information, distance to the nearest market, membership to farmer organization, and land size. Based on the findings of the study, several policy recommendations were proposed, namely; Encouragement of youth participation in agriculture in general and in cattle production in particular, promotion of gender equality in decision-making, households’ farmer organization, encouragement of market-orientation in cattle production, and establishment of cattle input support programs (e.g., feed, water and disease control).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Minimax mutual prediction
Autorzy:: Trybuła, Stanisław
Tematy:: multinomial
Bayes
binomial
minimax mutual predictor; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Matematyczny PAN
Powiązania:: https://bibliotekanauki.pl/articles/1208154.pdf Link otwiera się w nowym oknie
Opis:: The problems of minimax mutual prediction are considered for binomial and multinomial random variables and for sums of limited random variables with unknown distribution. For the loss function being a linear combination of quadratic losses minimax mutual predictors are determined where the parameters of predictors are obtained by numerical solution of some equations.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Determinants of Consumers’ Preferences for the Sources of Spices in Gauteng Province, South Africa
Autorzy:: Mphafi, Kananelo
Oyekale, Abayomi Samuel
Ndou, Portia
Tematy:: consumers
spices
preference
multinomial logit model; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/56911909.pdf Link otwiera się w nowym oknie
Opis:: Spices are condiments for adding flavors to food and are traditionally utilized for some medicinal purposes. Their therapeutic, aromatic, and culinary characteristics have been widely explored by cosmetic, pharmaceutical, and food industries. However, very little is known about the factors that influence consumers’ choice of spices based on their origins. Therefore, this study analyzed the determinants of consumers’ preferences for the sources of spices in Gauteng province. Data was collected from 385 respondents using a structured questionnaire. Multinomial logit regression was employed for data analysis. The results of the study indicated that preferences for local and imported spices were significantly influenced (p < 0.05) by socio-economic factors such as marital status, household size, and gender. In addition, products’ attributes such as attractiveness, packaging, and availability in the market also significantly influenced (p < 0.05) preference for local and imported spices. Based on these findings, it was recommended that promotion of spices’ marketability must consider some important attributes along with consumers’ socio-economic characteristics.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Determinants of food security among rural households in Nigeria: USDA food insecurity experience based measurement (forms) approach
Autorzy:: Aboaba, Kazeem
Fadiji, Damilare Michael
Hussayn, Jamiu Ayomide
Tematy:: Food, food security, food insecurity, USDA, multinomial logit; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/1892077.pdf Link otwiera się w nowym oknie
Opis:: This study was carried out to estimate the extent of food security and its determinants among rural households in Nigeria. Data for this study was obtained from 180 rural households consisting of 1260 members through the use of a structured questionnaire. Data was analyzed with a descriptive technique and a less restrictive multinomial logistic regression model. The result found most rural households to be food insecure as they measure high on the food insecurity scale. Age, gender, marital status, access to credit, dependency ratio, household size, ownership of farmland and farming experience significantly influence food security categories. The study concluded that: female-headed married households were more food secure than male-headed households; an increase in age of household heads makes it more likely to be food secure, and so does access to credit facilities; conversely, an increase in family size and in the dependency ratio makes it less likely to be food secure. The study recommends that there should be provision and proper monitoring of credit facilities to small farmers in other to increase their scale of operation and improve their food security status. Also, adequate attention should be given to policy measures that address family planning in order to reduce the household size to a level the household heads can adequately cater for.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Assessment of income generating activities among forest fringe communities in cross rivers state of Nigeria
Autorzy:: Awe, Femi
Tematy:: livelihood
forest
on-farm
multinomial
Cross River; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/1879407.pdf Link otwiera się w nowym oknie
Opis:: This study assessed the different income generating activities as well as factors that influenced choice of such activities among forest communities in Cross Rivers State of Nigeria. One hundred copies of structured questionnaire were used to obtain information from respondents in the study area. Two Local Government Areas (LGAs) were purposively selected for the study, due to their agrarian and forest-based nature. Five communities were then randomly selected from each of the LGAs and ten copies of questionnaire were randomly administered in each community. Both descriptive statistics such as frequencies and percentages as well as inferential statistics such as Multinomial Logistic Regression were used in the study. From the study, it was discovered that the average household size, age, farm size and household income were 4; 36.5; 1.75Ha and N39, 330 respectively. It was also observed that the respondents engaged in different income generating activities which are then categorized into On-farm only activities, Non-farm only activities as well as Non-farm+ On-farm activities. Thirty-seven percent (37%) of the respondents engaged in only farming activities with only 20% of them engaging in non-farm activities alone; while 43% of the respondents combine farm activities with non-farm activities. The results of the Multinomial Logistic Regression show that age, educational qualification, access to extension services, total household monthly income, farming experience, farm size as well as availability of forest were variables that significantly influenced the respondents’ choice of livelihood strategies at 5% level of significance.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: On Generating Correlated Pseudo-Random Binary Numbers
O generowaniu skorelowanych binarnych liczb pseudolosowych
Autorzy:: Gamrot, Wojciech
Tematy:: Random number generator
multinomial distribution
two-point distribution
expectation; Pokaż więcej
Wydawca:: Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Powiązania:: https://bibliotekanauki.pl/articles/906865.pdf Link otwiera się w nowym oknie
Opis:: The paper is devoted to the problem of generating sequences of binary vectors having joint distribution allowing for correlation between individual elements. A procedure for generating such a distribution from uncorrelated binary and multinomial pseudo-random data is proposed. Certain properties of the proposed procedure are examined in the simulation study.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Factors affecting livelihood strategies of smallholder tobacco and non-tobacco farmers and off-farm households benefittin from land reform in Zimbabwe
Autorzy:: Mapfumo, Alexander
Mushunje, Abbyssinia
Tematy:: livelihood strategies
land reform
multinomial logit model
Manicaland
Zimbabwe; Pokaż więcej
Wydawca:: Uniwersytet Przyrodniczy w Poznaniu. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/2141452.pdf Link otwiera się w nowym oknie
Opis:: The main objective of this paper was to determine the factors that affect the livelihood strategies of resettled smallholder farmers in Zimbabwe. The study was conducted in Manicaland Province in Zimbabwe, and the respondents were stratified into four groups. These were smallholder farmers resettled under the A1 and A2 models, as well as tobacco and non-tobacco smallholder farmers. The two models differ in how they were implemented and supported, which might lead to them having different livelihood strategies. A total of 300 respondents were surveyed, consisting of 114 tobacco and 149 non-tobacco farmers and 24 off-farm and 13 wageearner households in Manicaland province. The study used a Multinomial Logit model to investigate the factors influencing a household’s decision to choose different livelihood strategies. In the model, the dependent variables included four livelihood strategies, while the explanatory variables included various household social-economic and institutional factors. The results obtained from the multinomial logistic regression model established that gender and land size were significant at a level of 1%, and education, household size, access to credit and access to inputs were significant at 5% in the adoption of tobacco farming, access to credit and gender were significant at a 1% level in the adoption of non-tobacco farming, while education was significant at a 10% level in adopting off-farm were found to be significant in determining the adoption of the tobacco farming in the study area up to less than 10% probability level in adopting off-farm activities. Smallholder farmers who did not adopt tobacco farming indicated that limited land size, shortage of labour and access to tobacco inputs were the major impediments to adopting tobacco farming. The government should support the efforts of smallholder farmers to increase their livelihood strategies through unveiling credit lines for farming activities. Access to inputs for smallholder farmers should be made a priority by the government through the provision and fair distribution of adequate agricultural inputs.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Modelling the occupational and educational choices of young people in Poland using Bayesian multinomial logit models
Autorzy:: Grzenda, Wioletta
Tematy:: young people
labour market
education
multinomial logit model
Bayesian approach; Pokaż więcej
Wydawca:: Główny Urząd Statystyczny
Powiązania:: https://bibliotekanauki.pl/articles/1827554.pdf Link otwiera się w nowym oknie
Opis:: Binomial logit models are commonly used in the analysis of the situation of respondents on the labour market. Consequently, in most cases researchers consider two states: of being unemployed and employed or economically inactive and active. This paper focuses on the situation of young people aged 18 to 29 on the labour market in Poland. A major part of the people who comprise the studied group are still in education or combine education with work. Therefore, the participants of the research were divided into the following groups: the employed and not learning, those combining education with work, the unemployed, learners/students only, and those economically inactive and not at school. The model allowing an analysis which includes both the most common division into working and nonworking persons as well as the division proposed in this study is a nested logit model. This model has a hierarchical structure and is a special case of a multinomial logit model. In this paper, all models were estimated within the Bayesian approach. The findings show that continuing education by young people may result from their problems with finding a job; moreover, combining work with education is not the preferred form of professional activity. In addition, the study examines the inequalities observed on the Polish labour market.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: More gist, better math : fuzzy-trace theory-based investigation of the relationship between long-term memory and mathematical skills
Autorzy:: Hohol, Mateusz
Obidziński, Michał
Bażela, Nina
Opis:: Despite extensive research on the cognitive basis for mathematical activity, the associations between long-term memory and math skills remain relatively understudied. In our fuzzy-trace theory-driven study, we addressed this issue by investigating the relationships between long-term memory for numbers and prominent math skills, namely approximate number processing, arithmetic fluency, and math reasoning, along with math self-concept. Individuals who performed better in the numerical memory task demonstrated better math reasoning, a higher math self-concept, and were more arithmetically fluent. We did not find an association between memory and approximate number processing. Crucially, our memory task, based on the conjoint recognition model, allowed us to go beyond merely measuring overall performance and, as a result, to test fine-grained memory processes related to two memory traces: verbatim (remembering exact numbers) and gist (remembering a general intuition about a number's magnitude). While both gist and verbatim processes correlated with math reasoning, the associations involving gist-based processes were more prominent, which is consistent with one of the main assumptions of fuzzy-trace theory. This pattern was further supported by the results of the cluster-based analysis. On the other hand, even though math self-concept was positively associated with overall numerical memory performance, it correlated significantly only with verbatim-based process. Overall, our study shows the nuanced role of long-term memory processes in mathematical skills and demonstrates the power of fuzzy-trace theory and multinomial processing tree modeling in the fine-grained investigation of mathematical cognition.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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