The Influence of Entrepreneurial Ecosystems on Entrepreneurs' Perceptions and Business Success

Entrepreneurship continues to grow and receives a great deal of interest from business researchers and practitioners for its importance in the modern economy. This study aims to contribute to the body of knowledge that the entrepreneurial ecosystem correlates with founders' perceptions and startup success. Data were gathered from surveys of 200 founders or CEOs of SMEs and startups in Tay Ninh City (Vietnam), who have operated their own companies for at least five years. The primary data analysis was performed using the partial least squares (PLS) technique. Five out of six ecosystem factors significantly affect entrepreneurs' perceptions and startups’ success, based on the results of the empirical data. Besides, the founders' perceptions also positively affect the success of a startup. The implications show the need to enhance entrepreneurship in a nation

Combination of Domain Knowledge and Deep Learning for Sentiment Analysis of Short and Informal Messages on Social Media

Sentiment analysis has been emerging recently as one of the major natural language processing (NLP) tasks in many applications. Especially, as social media channels (e.g. social networks or forums) have become significant sources for brands to observe user opinions about their products, this task is thus increasingly crucial. However, when applied with real data obtained from social media, we notice that there is a high volume of short and informal messages posted by users on those channels. This kind of data makes the existing works suffer from many difficulties to handle, especially ones using deep learning approaches. In this paper, we propose an approach to handle this problem. This work is extended from our previous work, in which we proposed to combine the typical deep learning technique of Convolutional Neural Networks with domain knowledge. The combination is used for acquiring additional training data augmentation and a more reasonable loss function. In this work, we further improve our architecture by various substantial enhancements, including negation-based data augmentation, transfer learning for word embeddings, the combination of word-level embeddings and character-level embeddings, and using multitask learning technique for attaching domain knowledge rules in the learning process. Those enhancements, specifically aiming to handle short and informal messages, help us to enjoy significant improvement in performance once experimenting on real datasets.Comment: A Preprint of an article accepted for publication by Inderscience in IJCVR on September 201

Approche Bayes-Markov et restauration d'images scintigraphiques

Les images scintigraphiques sont utilisées dans nombreux domaines tels que la médecine nucléaire, le contrôle non destructif. Cependant, elles sont de qualité très médiocre à cause de plusieurs sources de dégradation. Nous proposons une restauration basée sur l'approche Bayes-Markov. La détection de discontinuités et la restauration des zones homogènes sont réalisées efficacement par un modèle markovien avec processus de ligne implicite. La qualité des images restaurées est mise en évidence par les mesures du contraste autour des transitions et d'uniformité dans les régions homogènes en comparaison avec deux autres méthodes existantes

Modèle de formation d'images gammagraphiques avec prise en compte de la dimension énergétique

- Cet article présente un modèle de processus de formation d'images applicable à l'imagerie médicale gammagraphique. Ce modèle physique prend en compte l'énergie des photons détectés après leur diffusion au sein du milieu environnant. Tout comme la dernière génération de caméras SPECT opérant en mode liste, il est capable de fournir un ensemble d'images indexées en énergie. Son temps de calcul, réduit, ouvre la voie au développement de nouvelles méthodes de restauration d'images utilisant la dimension énergétique. Une analyse en composantes principales (ACP) opérée sur la série d'images multiénergie fournit des résultats inattendus

El trauma de los niños vietnamitas que viven en familias incompletas

Children living in incomplete families have to suffer from more hardships than others including psychological trauma that could never be cured without safe approaches. In this paper, we used the Children Behavior Checklist (CBCL test) by Achenbach to initially filter the incidence of children in incomplete families with psychological trauma, the extent of childhood trauma, and the signs of trauma. Moreover, the Self-esteem scale of Toulouse was also utilized to investigate children's self-esteem and determine the impact of psychological trauma on the self-assessment of children. Based on these tools, the research conducted a correlation analysis of psychological trauma of children in incomplete families through indicators of awareness of, emotions with, and behaviors towards family and social life (self-evaluated by children). The results showed that there are differences in psychological trauma of children in terms of awareness, emotions, and behaviors. The differences allow for a better definition of children's causes, influences, and degrees of psychological trauma. This is the basis for proposing timely filtering solutions and effective psychological support measures for these children. Keywords: correlation analysis; signs of psychological trauma; children; incomplete family; Vietnam.Los niños que viven en familias incompletas tienen que sufrir más dificultades que otros, incluido el trauma psicológico que nunca podría curarse sin enfoques seguros. En este artículo, se utiliza la Lista de Verificación de Comportamiento Infantil (prueba CBCL) de Achenbach para filtrar inicialmente la incidencia de niños en familias incompletas con trauma psicológico, el alcance del trauma infantil y los signos de trauma. Además, la escala de autoestima de Toulouse también se utilizó para investigar la autoestima de los niños y determinar el impacto del trauma psicológico en la autoevaluación de los niños. Con base en estas herramientas, la investigación realizó un análisis de correlación del trauma psicológico de los niños en familias incompletas a través de indicadores de conciencia, emociones y comportamientos hacia la vida familiar y social (autoevaluados por los niños). Los resultados mostraron que existen diferencias en el trauma psicológico de los niños en términos de conciencia, emociones y comportamientos. Las diferencias permiten una mejor definición de las causas, influencias y grados de trauma psicológico de los niños. Esta es la base para proponer soluciones de filtrado oportunas y medidas de apoyo psicológico eficaces para estos niños. Palabras clave: análisis de correlación; signos de trauma psicológico; niños; familia incompleta; Vietnam

Factors affecting Chinese tourist’s loyalty towards Ho Chi Minh City - A mediation analysis of tourists’ perceived value

The purpose of this research was to examine empirically the causal relationships among push factors, pull factors, risk perception, tourists’ perceived value and loyalty of Chinese tourists travelling to Ho Chi Minh City. A survey was conducted investigating 470 Chinese tourists to collect the primary data. As a result, Chinese tourists’ loyalty towards Ho Chi Minh City could be predicted by some of their push motivation, pull motivation and their perceived value about the trip or tourists’ services received. Consequently, business organizations and tourism companies should consider the crucial roles of push and pull factors to attract more potential repeated visitors and increase their perceived value and loyal to Vietnam, especially to Ho Chi Minh City in the near future

Kognitivne perspektive, inovativnost i konkurentska prednost stratega: empirijska studija u Vijetnamu

The main aim of this study is to investigate the relationship between strategists’ intuitive and analytical thinking, innovation, and corporate competitive advantage. This study not only proposes the new model to the academic world but also provides the empirical investigation on the direct and indirect effect of a strategist’s analytic reasoning perspective and strategist’s generative reasoning perspective on innovation and competitive advantage as well as the mediating role of innovation between the strategist’s cognitive perspective of reasoning and corporate competitive advantage. This study conducted questionnaires of 382 samples in state-owned companies, FDI, and private companies in Vietnam. Structure equation modelling was applied through smart PLS to analyse the valid data. The results provide substantial evidence of significant relationships between strategists’ cognitive perspectives of reasoning, innovation, and competitive advantage in the context of State own, FDI, and private companies in Vietnam. Besides, the findings also show that there are non-relationships in the direct effect between product innovation and competitive advantage and between marketing innovation and competitive advantage. Moreover, the research results imply various managerial implications regarding how organizations successfully increase their competitive advantage by increasing their leader’s cognition in management.Glavni cilj ove studije je istražiti odnos između intuitivnog i analitičkog razmišljanja stratega, inovativnosti i konkurentske prednosti poduzeća. Ova studija ne samo da predlaže novi model akademskom svijetu, već također pruža empirijsko istraživanje izravnog i neizravnog učinka analitičke perspektive razmišljanja stratega i perspektive generativnog razmišljanja stratega o inovacijama i konkurentskoj prednosti, kao i o posredničkoj ulozi inovacije između kognitivne perspektive razmišljanja stratega i konkurentske prednosti poduzeća. Ovim istraživanjem provedena je anketa s 382 uzoraka u državnim tvrtkama, izravnim stranim ulaganjima i privatnim tvrtkama u Vijetnamu. Modeliranje strukturnih jednadžbi primijenjeno je putem pametnog PLS-a za analizu valjanih podataka. Rezultati pružaju bitne dokaze o značajnim odnosima između kognitivnih perspektiva razmišljanja, inovativnosti i konkurentske prednosti stratega u kontekstu državnih poduzeća, izravnih stranih ulaganja i privatnih tvrtki u Vijetnamu. Osim toga, nalazi također upućuju na ne postojanje veze s izravnom učinkom ni između inovacije proizvoda i konkurentske prednosti niti između marketinške inovacije i konkurentske prednosti. Štoviše, rezultati istraživanja upućuju na različite menadžerske implikacije o tome kako organizacije uspješno povećavaju svoju konkurentsku prednost povećanjem kognitivnih sposobnosti svog lidera u upravljanju

Učinci zelene prakse restorana na namjeru kupca da kupe ekološki prihvatljive proizvode: Dokazi iz Vijetnama

This research aims to identify how green practices affect customer intention to purchase green products via customers’ emotional attachment. Using the PLS-SEM to analyze 358 restaurant guests to find customer intention to purchase green products is a fundamental constituent of a restaurant’s success. The results reveal that the application of recycling and composting, energy and water management activities have a positive significant impact on customer intention to purchase green products and pro-environmental emotional attachment, and the application of organic food-green products and materials have a significant impact on emotional attachment, but not trigger on customer intention to purchase green products. Meanwhile, the application of eco-friendly supplies did not affect emotional attachment and customer intention to purchase. Pro-environmental emotional attachment is a key mediator of the customer intention model. The results provided both knowledge and theory of green practices by adding customers\u27 emotional attachment into the theory of planned behavior to understand customer behavior toward green restaurants. It proposes managerial recommendations and building strategies for the long term to increase customer intention to purchase green products in the restaurant industry.Cilj je ovog istraživanja utvrditi način na koji zelene prakse utječu na namjeru kupca da kupi ekološke proizvode putem emocionalne povezanosti kupaca. Korištenje PLS-SEM-a za analizu gostiju iz 358 restorana kako bi se utvrdila namjera kupca da kupi ekološke proizvode temeljni je dio uspjeha restorana. Rezultati istraživanja upućuju na to da primjena recikliranja i kompostiranja, aktivnosti gospodarenja energijom i vodama imaju pozitivan utjecaj na namjeru kupca da kupi zelene proizvode i pro-ekološku emocionalnu privrženost te da primjena organske hrane –zelenih proizvoda i materijala na ekološku proizvodnju imaju značajan utjecaj na emocionalnu privrženost, ali ne i na namjeru kupca da kupi zelene proizvode. U međuvremenu, primjena ekološki prihvatljivih zaliha nije utjecala na emocionalnu privrženost i namjeru kupaca za kupnjom. Emocionalna vezanost za zaštitu okoliša ključni je posrednik modela namjere kupaca.Rezultati su osigurali i znanje i teoriju zelene prakse dodajući emocionalnu privrženost kupaca teoriji o planiranom ponašanju kako bi se razumjelo ponašanje kupaca prema zelenim restoranima. Predlažu se menadžerske preporuke i strategije izgradnje za dugoročno povećanje namjere kupca da kupi zelene proizvode u ugostiteljstvu

Factors affecting employee performance through a mediation of job satisfaction. An empirical study of hospitality industry in Ho Chi Minh City, Vietnam

The research was conducted to explore the relationships between the factors of career development, team spirit, relationship at work, compensation and benefit, working environment, job stress and the factor of employee performance through a mediation of job satisfaction in Hospitality Industry in Ho Chi Minh City, Vietnam. Based on previous theoretical and empirical studies, the research conceptual framework and hypotheses were constructed. The primary data was collected from a questionnaire survey with 711 respondents. Multiple regression and Path analyses were conducted to test the research hypotheses, the results showed that career development, team spirit, relationship at work, compensation and benefit, working environment, and employee job satisfaction positively and directly impacted on employee performance. In addition, all factors indirectly influenced employee performance through job satisfaction. Hence, organizations operating in hospitality industry in Ho Chi Minh City should understand better employee expectations to efficiently and effectively improve and manage their human resources