Top-k Route Search through Submodularity Modeling of Recurrent POI Features

We consider a practical top-k route search problem: given a collection of points of interest (POIs) with rated features and traveling costs between POIs, a user wants to find k routes from a source to a destination and limited in a cost budget, that maximally match her needs on feature preferences. One challenge is dealing with the personalized diversity requirement where users have various trade-off between quantity (the number of POIs with a specified feature) and variety (the coverage of specified features). Another challenge is the large scale of the POI map and the great many alternative routes to search. We model the personalized diversity requirement by the whole class of submodular functions, and present an optimal solution to the top-k route search problem through indices for retrieving relevant POIs in both feature and route spaces and various strategies for pruning the search space using user preferences and constraints. We also present promising heuristic solutions and evaluate all the solutions on real life data.Comment: 11 pages, 7 figures, 2 table

Entrepreneurship Education and Entrepreneurial Intention: Perspectives on Institutional Theory

Entrepreneurial intentions have been considered a critical element understanding the formation of new venture creations that have been seen in creating jobs and economic growth in a country. This study draws upon institutional environment theory to clarify and test the model using multiple linear regression on entrepreneurship education and three determinants of institutional environment dimensions, namely, regulatory, cogni-tive, and normative dimensions toward entrepreneurial intentions in the context of Esto-nia. A questionnaire-based survey on 265 Estonian university students was conducted to validate the hypotheses of the study. The results suggest that entrepreneurship education has a significant influence on university students’ entrepreneurial intention. Additionally, all three institutional environment determinants moderate the positive relationship be-tween entrepreneurship education and entrepreneurial intention. Interestingly, interaction terms among normative environment, entrepreneurship education, and entrepreneurial intention are statistically significant. Therefore, the results of this study advance institu-tional theory and its application in entrepreneurship research in the context of Estonia. Research paper Keywords: Entrepreneurship education, Entrepreneurial intentions, Institutional environment theory, Estonia, University students Reference to this paper should be made as follows: Wannamakok, W., & Liang, W. (2019). Entrepreneurship Education and Entrepreneurial Intention: Perspectives on Institutional Theory, Journal of Entrepreneurship, Business and Economics, 7(2), 106–129.&nbsp

Invariant Einstein metrics on three-locally-symmetric spaces

In this paper, we classify three-locally-symmetric spaces for a connected, compact and simple Lie group. Furthermore, we give the classification of invariant Einstein metrics on these spaces