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Although sentiment analysis on traditional online texts has been studied in depth, sentiment analysis for social media texts is still a challenging research direction. In the social media that contains a huge amount of texts and a large range of topics, it would be very difficult to manually collect enough labeled data to train a sentiment classifier for different domains. Distant supervision that...
An indefinite region disaster simulation model is established, in which model, a computational grid simplification model is proposed, human-computer interaction and cellular automaton technologies are adopted to deal with the closing boundary problems, fine feasibility of the disaster simulation model is verified by experiments.
In this work, a dynamic model of S. vulgaris shrubs under drought stress was discussed based on improved dual-scale automaton model with the data from experiments. Relationship of groundwater level and growth of S. vulgaris has been confirmed by computing the growth rate of tree height and radius growth on drought. The growth probability has been given with segment function in different condition...
In e-service environments, the delegation relationship is rarely considered as one of important factors of trust models. Most of work on delegation relationship focused on the permission of delegatee, delegation depth, delegation constrain and so on. They ignored the potential hazards brought from blind delegation, so easily to form the collusion attack. This paper defines the concept of delegation...
Many experiments have verified that Sabina vulgaris shrubs had distinguished advantage in anti-drought, but a lot of past works were primarily focused on its eco-physiological characteristics, with its growth model almost never explored. In this work, the primary model of S. vulgaris shrubs is discussed and improved based on the dual-scale automaton model with the data from experiments. The diversification...
Thanks to its significant value in anti-drought, Sabina vulgaris is becoming more and more important. But much of past research work was primarily focused on its eco-physiological characteristics while ignoring its basic topological architecture and growth rules. In this work, a dual-scale automaton model is presented to investigate the topological architecture of S. vulgaris shrubs. In comparison...
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