scholarly journals A Cost Function Approach to the Prediction of Passenger Distribution at the Subway Platform

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Xiaoxia Yang ◽  
Xiaoli Yang ◽  
Zhenling Wang ◽  
Yuanlei Kang
Keyword(s):  
Cost Function ◽  
Model Calibration ◽  
Field Data ◽  
Function Approach ◽  
Simulation Experiments ◽  
Actual Distribution ◽  
Passenger Safety ◽  
Field Data Collection ◽  
Waiting Area

This paper proposes a cost function approach to predict the passenger distribution at the platform, which is contributed to provide services to the passenger safety and convenience and also an efficient use of the subway platform. According to the limited observation and field data collection of Beijing Xuanwumen subway station, passenger behaviors and basic attributes at the platform are analyzed. Based on the analysis and investigation, factors including the distance to the waiting area, the passenger density in the visual field, and the length of the waiting area occupied by passengers are put forward as important factors to affect the choice of the waiting area. The determination of the real-time choice defined by these factors is applied to model the passengers’ waiting area choice behaviors. Simulation experiments are run for the model calibration and validation combining with the collected field data. The results show that the passenger distribution which arises from the model is capable of keeping consistent with the actual distribution in the rough. The model is helpful for controlling how heavy carriages are congested and providing suggestions to optimize the layout of platform facilities.

scholarly journals Parameterization of Pilot Point Methodology for Supplementing Sparse Transmissivity Data

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2082
Author(s):  
Aditya Kapoor ◽  
Deepak Kashyap
Keyword(s):  
Model Calibration ◽  
Field Data ◽  
Location Parameter ◽  
Pumping Test ◽  
Hydraulic Head ◽  
Weighted Sum ◽  
Kriging Variance ◽  
Pilot Points ◽  
Objective Determination

Pilot point methodology (PPM) permits estimation of transmissivity at unsampled pilot points by solving the hydraulic head based inverse problem. Especially relevant to areas with sparse transmissivity data, the methodology supplements the limited field data. Presented herein is an approach for estimating parameters of PPM honoring the objectives of refinement of the transmissivity (T) interpolation and the model calibration. The parameters are the locations and number of pilot transmissivity points. The location parameter is estimated by defining a qualifying matrix Q comprising weighted sum of the hydraulic head-sensitivity and the kriging variance fields. Whereas the former component of Q promotes the model calibration, the latter one leads to improved T interpolation by locating pilot points in un-sampled tracts. Further, a three-stage methodology is proposed for an objective determination of the number of pilot points. It is based upon sequential upgradation of the Variogram as the pilot points are added to the data base, ensuring its convergence with the head-based optimal Variogram. The model has been illustrated by applying it to Satluj-Beas interbasin wherein the pumping test data is not only sparse, but also unevenly distributed.

scholarly journals IMPLEMENTASI PROFIT AND LOSS SHARING (PLS) PETANI BAWANG MERAH DITINJAU DARI KONSEP EKONOMI ISLAM

IQTISHODUNA ◽  
2011 ◽  
Vol 4 (1) ◽  
Author(s):  
Umrotul Khasanah
Keyword(s):  
Data Analysis ◽  
Data Collection ◽  
Field Data ◽  
Islamic Law ◽  
Analysis Data ◽  
Study Approach ◽  
Research Techniques ◽  
Field Data Collection

The purposes of this research are to determine profit and loss sharing form that was used by red onion farmer and to explain it’s implementation according to Islamic concept. Research techniques include study approach, determination of research location, field data collection, and data analysis. Data was classified, identified, generalized, and than searched for theoretical constructions. The result of this research shows that red onion farmer did not know the term of profit and loss sharing well because they usually use “pertelonan” term. Implementation of pertelonan is dividing profit into three parts i.e. two parts for the owner of the land and one part for workers of the land. Based on syari’ah concept, this implementation is already according to Islamic law but it is not perfect yet because all process are unwritten or undocumented so if something wrong happened they have not written evidence.

Mekanisme Dan Proteksi Jaminan Nasabah Pada Gadai Informal

Liquidity ◽  
2017 ◽  
Vol 6 (2) ◽  
pp. 103-109
Author(s):  
Yuri Nanda Larasati ◽  
Jafril Khalil
Keyword(s):  
Qualitative Research ◽  
Research Methods ◽  
Financial Services ◽  
Field Data ◽  
Qualitative Research Methods ◽  
Research Field ◽  
Consumer Society ◽  
Library Research ◽  
The Cost

Regulation of the financial services authority (OJK) No. 31/POJK.05/2016 on Venture had arranged that the financial services agency on the basis of the law of pledge is in coaching and supervision OJK. Yet the existence of laws – invitation to Governing Enterprise pawn shops causing business activities conducted by the above parties are not yet regulated. The condition is feared could cause harm to the consumer society. The purpose of this research is to know the procedures, mechanisms, protection of goods and guarantee the consumer on an informal pledge financing, methods of determination of the cost of maintenance of the goods and the goods of the execution mechanism of the pledge as well as protection for the collateral items are viewed from the side of the consumer by looking at laws-invitations and Sharia. To find out whether the pledge have gotten permission from OJK. This research uses qualitative research methods with the study of library research, field data and simulations. The approach used in this study is the empirical juridical approach. Elaboration upon the results is discussed further in this article.

ADDITIONS TO STRABOSPOT FOR SEDIMENTARY FIELD DATA COLLECTION AND CONSTRUCTING STRATIGRAPHIC COLUMNS

2018 ◽  
Author(s):  
Casey J. Duncan ◽  
◽  
Marjorie A. Chan ◽  
Elizabeth Hajek ◽  
Diane L. Kamola ◽  
...  
Keyword(s):  
Data Collection ◽  
Field Data ◽  
Field Data Collection

scholarly journals The Application of Baum-Welch Algorithm in Multistep Attack

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Yanxue Zhang ◽  
Dongmei Zhao ◽  
Jinxing Liu
Keyword(s):  
Markov Model ◽  
Hidden Markov Model ◽  
Hidden Markov Models ◽  
Viterbi Algorithm ◽  
Markov Models ◽  
Hidden Markov ◽  
Simulation Experiments ◽  
Forward Algorithm ◽  
Better Than

The biggest difficulty of hidden Markov model applied to multistep attack is the determination of observations. Now the research of the determination of observations is still lacking, and it shows a certain degree of subjectivity. In this regard, we integrate the attack intentions and hidden Markov model (HMM) and support a method to forecasting multistep attack based on hidden Markov model. Firstly, we train the existing hidden Markov model(s) by the Baum-Welch algorithm of HMM. Then we recognize the alert belonging to attack scenarios with the Forward algorithm of HMM. Finally, we forecast the next possible attack sequence with the Viterbi algorithm of HMM. The results of simulation experiments show that the hidden Markov models which have been trained are better than the untrained in recognition and prediction.

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