All Tracks Problem

Bank Fears Loanliness
Tag(s):

Easy-Medium

Problem
Editorial
Analytics

Problem Statement

The Bank Indessa has not done well in last 3 quarters. Their NPAs (Non Performing Assets) have reached all time high. It is starting to lose confidence of its investors. As a result, it’s stock has fallen by 20% in the previous quarter alone.

After careful analysis, it was found that the majority of NPA was contributed by loan defaulters. With the messy data collected over all the years, this bank has decided to use machine learning to figure out a way to find these defaulters and devise a plan to reduce them.

This bank uses a pool of investors to sanction their loans. For example: If any customer has applied for a loan of $20000, along with bank, the investors perform a due diligence on the requested loan application. Keep this in mind while understanding data.

In this challenge, you will help this bank by predicting the probability that a member will default.

Download Dataset

Data Information

There are files given: train, test and submission. Your submission file must adhere to format specified in the given submission file. This data set comprises of information captured in December 2016. Following is the description of variables given:

Variable Description
member_id unique ID assigned to each member
loan_amnt loan amount ($) applied by the member
funded_amnt loan amount ($) sanctioned by the bank
funded_amnt_inv loan amount ($) sanctioned by the investors
term term of loan (in months)
batch_enrolled batch numbers allotted to members
int_rate interest rate (%) on loan
grade grade assigned by the bank
sub_grade grade assigned by the bank
emp_title job / Employer title of member
emp_length employment length, where 0 means less than one year and 10 means ten or more years
home_ownership status of home ownership
annual_inc annual income ($) reported by the member
verification_status status of income verified by the bank
pymnt_plan indicates if any payment plan has started against loan
desc loan description provided by member
purpose purpose of loan
title loan title provided by member
zip_code first three digits of area zipcode of member
addr_state living state of member
dti ratio of member's total monthly debt repayment excluding mortgage divided by self reported monthly income
delinq_2yrs number of 30+ days delinquency in past 2 years
inq_last_6mths number of inquiries in last 6 months
mths_since_last_delinq number of months since last delinq
mths_since_last_record number of months since last public record
open_acc number of open credit line in member's credit line
pub_rec number of derogatory public records
revol_bal total credit revolving balance
revol_util amount of credit a member is using relative to revol_bal
total_acc total number of credit lines available in members credit line
initial_list_status unique listing status of the loan - W(Waiting), F(Forwarded)
total_rec_int interest received till date
total_rec_late_fee Late fee received till date
recoveries post charge off gross recovery
collection_recovery_fee post charge off collection fee
collections_12_mths_ex_med number of collections in last 12 months excluding medical collections
mths_since_last_major_derog months since most recent 90 day or worse rating
application_type indicates when the member is an individual or joint
verification_status_joint indicates if the joint members income was verified by the bank
last_week_pay indicates how long (in weeks) a member has paid EMI after batch enrolled
acc_now_delinq number of accounts on which the member is delinquent
tot_coll_amt total collection amount ever owed
tot_cur_bal total current balance of all accounts
total_rev_hi_lim total revolving credit limit
loan_status status of loan amount, 1 = Defaulter, 0 = Non Defaulters


Evaluation Metric

Submissions will be evaluated based on AUC-ROC score. For more information about this metric, read here.

Update (17th March, 3pm) - If you've made any earlier submission based on logloss, kindly optimize it for AUC-ROC score. All the existing submissions will be re-evaluated using the AUC-ROC scoring criteria.


Update (23rd March, 6pm) - GBM + Simple Feature Engineering gives 0.936 - Go to Script


Update (26th March, 11am) - Current Public Leaderboard Rank 1 AUC ( = 1) has used unfair means to score on leaderboard. Hence, the submission is disqualified. Kindly refrain from resorting to unfair means to win this challenge. Participants will be disqualified and will be disregarded for prizes from current and future competitions.


Update

For learning purpose, winning solutions of this challenge are posted here on machine learning practice.

Time Limit: 5.0 sec(s) for each input file.
Memory Limit: 256 MB
Source Limit: 1024 KB
Marking Scheme: Marks are awarded when all the testcases pass.
Allowed Languages: C, C++, C++14, Clojure, C#, D, Erlang, F#, Go, Groovy, Haskell, Java, Java 8, JavaScript(Rhino), JavaScript(Node.js), Julia, Kotlin, Lisp, Lisp (SBCL), Lua, Objective-C, OCaml, Octave, Pascal, Perl, PHP, Python, Python 3, R(RScript), Racket, Ruby, Rust, Scala, Swift, Visual Basic
Upload Prediction File
Please upload the prediction file in the format as stated in the problem and ensure that there are correct number of rows as in the test file.
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