Example

• github.com
• kaggle.com/username/kernelname
• etc

In solution search page, create new column.

Point

• Whether it is necessary
• Whether to develop frontend or backend

Because many solutions automatically registered.

Reference

• #44

Reference

• #48

Now use alert

Example

• Toast
• Alert

In competition search page.

1. Specify competition
2. Request to API
3. Calculate similarity with other competitions
4. Display similarity for new column

My app is stopped at 2019/8/29.
I should consider to upgrade Heroku plan.

It doesn't occur in Django form and curl.
It may be axios bug.

Reference

• Delete redirect occuring after DELETE request

Aggregate weekly solution and tweet.

Target

Competitions

• Solution count
• Team count
• Start date
• End date

Solutions

• Rank
• Reward
• Team count
• Start date
• End date

Example

Reference

• React Bootstrap: Dropdowns
• react-bootstrap-table2: custom sort function
• AtCoder Problems: Recommendations

Default sort in multiple fields is not working

export const solutionDefaultSorted = [{
    dataField: 'competition_info.ended_at',
    order: 'desc'
}, {
    dataField: 'rank',
    order: 'asc'
}];

Example

Cause

These columns get from tags.

• Data Types
• Predict Type
• Tags

from kaggle import KaggleApi

api = KaggleApi()
api.authenticate()
competitions = api.competitions_list(sort_by='latestDeadline', page=page)
for competition in competitions:
    tags = getattr(competition, 'tags')
    print(tags)

Kaggle official didn't tag to old competitions, and it is not enough in recently competitions.

Plan

• Allow user to edit some columns in competition
• Add new column User Tags, it can tag from user freely

Meta Kaggle

Step

1. Get solutions from Meta Kaggle and save to csv
2. Get kaggle account of the solutions from kernel or discussion
3. Get solution rank from kaggle user page

Reference

• Meta Kaggle
• Winning solutions of kaggle competitions

Originally posted by @Doarakko in #16 (comment)

https://kagoole.herokuapp.com/
The above website is not working.

Now create and delete only

New #kaggle competition "Connect X Beta" is lauched.

Medal: False
Kernel Only: False
Data Types: []https://t.co/rS9GGvOliW

— Kagoole (@kagoole) November 27, 2019

Turn all items to left in toggle state.
Normal status does not change.

• Toggle
  

• Normal
  

Example

• iPhone 6

Multiple search is invalid in these columns.

• Data Types
• Tags

Default filter isn't compatible in this case.

• Create twitter account
• Request twitter api

backend

• Tweet when new competition is launched

frontend

• Add twitte account link

Examle

• Severstal: Steel Defect Detection
  
  

Now save history for certain period and notify when solution is deleted.
I check deleted solution and can restore solution easily if necessary.

Other way

User can't delete solution

Correspondence in the case of registration error and correction is troublesome.

User must create account

• All solutions can be edited and deleted if you have an account
• Users can edit and delete only the solutions they registered

It is easy to develop because this project uses Django, but troublesome to use this service.

Plan

I think about it if any problems occur.

Scraping kaggle discussion and kernel, twitter etc

It should get only finished competitions in modal.

It needs to customize filter in predict type column.

Purpose

• You can find these solution
  • good for both public and private
  • shake up solution
  • shake down solution

Way

Manual registration

Troublesome when user registers solution that is not his own

Scraping

1. User register solution in modal
2. Scraping leaderboard based on ref and rank
3. Update record

Use kaggle api

I don't know if I can

Todo

• Try kaggle api
  • competition_leaderboard_download
  • competition_leaderboard_view
  • competition_leaderboard_cli

Some column may be able to guess from Evaluation Metric.

Example

Predict Type

• ... error is regression
• ... Area Under Receiver Operating Characteristic Curve is classification
• ... Accuracy is classification

Tags

• ...ObjectDetection... is object detection
• ...ObjectSegmentation... is object segmentation

Originally posted by @Doarakko in #9 (comment)

Reference

• Django 3.0 Roadmap

Reference

• Boolean value and dropdown

Clear search bar when clear button clicked

Reference

• Kaggle Progression System

Now competition primary key is default id.
It is difficult to register from out of service using api.

Purpose

• omit to input competition name

Example

This may be react-boostrap-table2 bug.
Now I remove these filter from clear function.

Example

Cause

Hidden column isn't working getFilter.

{
    dataField: 'include_code',
    text: 'Include Code',
    formatter: cell => TableUtil.selectBooleanOptions[cell],
    filter: selectFilter({
        getFilter: (filter) => {
             includeCodeFilter = filter;
        },
        options: TableUtil.selectBooleanOptions,
    }),
    align: 'center',
    headerAlign: 'center',
    hidden: true,
}, 

Rank field is required

Example

• [Solution] Public: 0.657 => Private: Error (OH MY GOD...)

getUrlCompetitionTitle() {
    let params = this.props.location.search;
    if (params === '' || params.indexOf('title=') === -1) {
        return '';
    }
    params = decodeURI(params);
    return params.slice(params.indexOf('=') + 1);
}

Reference

• REACT TRAINING / REACT ROUTER

Example

Plan

Get only finished competitions in modal.

Reference

• #3

Use join and group by

• backend/scriptsbatch.py

def update_solution_count():
    for competition in Competition.objects.all():
        competition.solution_count = Solution.objects.filter(
            competition=competition.id).count()
        competition.save()

Introduce Twitter card.

Reference

• Twitter card: getting started
• Card validator

Create kernel search page.

Point

• Whether it is necessary
• Number of records
  • Heroku free to 10,000 records