درخت حوزه‌های تخصصی

The purpose of this study is a new understanding behaviour and net cash flow forecasting. The data of this research contains the daily trial balance for one year, which has been received from 48 bank branches. For this purpose, the optimal model out of 4 models; Geometric Brownie, Arithmetic Brownie, Vasicek and Modified Square Root at three levels of microscopic, mesoscopic and macroscopic have been investigated and the Geometric Brownie model has been approved as the optimal model in microscopic level . The results show that Geometric Brownian Motion model can simulate the net cash flow highly accurate in accordance with the criteria of mean absolute percentage error. also forecasting net cash flow for each under study time series has been done in various forecasting horizons involved 7, 14, 21, 30, 60, 90 and 180 day time period accordance with the criteria of mean absolute percentage error. Also The other results obtained from this study is that according to 8 different prediction accuracy criteria, By increasing the forecast hori-zon, ability of the GBM model in simulation and forecasting the net cash flow de-creases.

Over time, the use of underground spaces has changed and has been considered for various other purposes. Many US1 built for a specific period with a specific purpose have been left without a specific function today. The reason for this can be considered the lack of a clear and codified plan in the face of these spaces. Therefore, the importance of underground issues related to US jus tifies the inclusion of UUS2 in urban index sys tems. Hence, due to the depletion of activity, many US today have created bubbles lacking function under the skin of cities; with proper identification, it will be possible to use them in the service of cities and citizens. Thus, the main Goals of Current research are -Recognizing the characteris tics of US -The typology of the urban US, and -Solutions to reproduce the urban US. This research is a scientific review, and the information collected is documentary-oriented. The lack of reliable sources in the fields of architecture and civil engineering in the subject of US, geographical extent, and diversity of species of these spaces on the planet show the importance of this research. Therefore, typology and solutions for reproducing urban US are presented from two methods of inves tigating the theoretical foundations and known projects in the field of US. The present s tudy's findings based on the literature review and reproduction of US showed that these spaces could be defined into six categories.