” data留学生程序 写作、Database课程程序Assignment #1 (Due 11:59pm, 14 July 2020)Instructions: – Answer all questions.-Interpret the questions logically, show your steps and write down your assumption(s) when necessary.-Please submit your answer to L@PU before the due date.-Late Submission Policyo3-hour grace period is given.o10% Off for every 3-hour late-Plagiarism PolicyoBoth giver and receiver subject to the same penalty belowoAll the students Involved not only will receive 0 marks for this assessment, but also will have an additional 50% penalty applied, e.g., 5 marks for a 10-mark assessment.1.Suppose you are asked by the Octopus Card Company to analyze the following Card Database.Octopus Card Database for TrainingOctopus ID Day of the Week From To Transportation Taken1 Mon-Thurs HK HK MTR2 Mon-Thurs Kln Kln Bus3 Mon-Thurs NT Kln Bus4 Fri-Sun HK HK MTR5 Mon-Thurs Kln Kln MTR6 Mon-Thurs NT NT Bus7 Mon-Thurs HK HK Bus8 Fri-Sun Kln Kln MTR9 Mon-Thurs Kln Kln Bus10 Mon-Thurs HK HK Bus11 Fri-Sun HK HK MTR12 Mon-Thurs Kln Kln Bus13 Mon-Thurs HK HK Bus14 Mon-Thurs Kln Kln MTR15 Fri-Sun HK NT MTR16 Mon-Thurs NT Kln Bus17 Mon-Thurs HK NT Bus18 Mon-Thurs Kln HK MTR19 Fri-Sun HK NT MTR20 Mon-Thurs HK HK MTROctopus Card Database for TestingOctopus ID Day of the Week From To Transportation Taken21 Mon-Thurs Kln Kln Bus22 Mon-Thurs HK HK MTR23 Mon-Thurs Kln Kln Bus24 Mon-Thurs Kln Kln Bus25 Fri-Sun Kln HK MTRYour project team member tried to construct a decision tree for the first 20 records above, i.e., the training dataset, and obtained the result as follows.a)Write down the classification rules that can be extracted from the constructed tree.b)Another project team member commented that the decision tree above is too deep. Prune the tree as much as possible so that the classification rate (accuracy) of the pruned tree for the testing database can be maintained, i.e., as high as that obtained in part (a).c)If some more database records are available and added to the training database above, describe the situations fori)reconstruction Of the decision tree is NOT necessaryii)partial reconstruction of the decision tree is necessaryiii)full reconstruction of the decision tree is necessary2.In our lecture notes, we have already seen the derivative of a sigmoid function wrt its weight parameters as follows.we have Let us now consider The softmax function with the function form.Derive the derivative of softmax wrt . You MUST use the symbols above, i.e., , , etc., to present your answer.Hint:Using the quotient rule and let and , we have如有需要，请加QQ：99515681 或邮箱：99515681@qq.com
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