Intensification of morphology of blocks, which are the basic units of urban form and land management, is the key to sustainable urban development. Taking 206 blocks of Nanjing's central city area as an example, an evaluation system featuring six output-oriented indicators and five input-oriented indicators was constructed for data envelopment analysis to measure the blocks' intensity level. Relatively intensive blocks were selected as training data, and the output-oriented indicators of non-intensive blocks were predicted by a deep learning model, completing the procedure from evaluation of intensity to optimisation of morphological indicators. Finally, using the difference calculation and Arctool of weighted overlay in ArcGIS, a reference for the optimisation design of urban block morphology was created.

Abstract-The widely spread old saying that better imagining than seeing, reflects regretful feeling of tourists, which not only affects the enthusiasm of tourists, but also the development of tourism. This paper analyses the main reasons for this phenomenon, among which the lack of aesthetic imagination of tourists occupies the first. Based on this, the paper proposes shallow views on this problem. On the one hand, it is necessary for tourists to improve their aesthetic abilities, on the other hand, it is vital for tourism planners to design unique aesthetic attractions for tourist destinations, in order to meet the aesthetic expectations of tourists and cultivate their aesthetic imagination in accordance with the psychological acceptance patterns of tourists.

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Abstract. Substation access to transmission network will cause the new distribution of the power flow. This paper propoes the economical efficiency indicators to evaluate the section transmission capacity utilization, on the basis of substations variable costs, calculating the contribution degree of various schemes to determine the recommended scheme. Actual example illustrates the feasibility, effectiveness and applicability of research method.