Telstra KaggleCompetitionСтанислав Семёнов, 2016 г.

Задача

Метрика качества

Данные

Данные

Данные

Наблюдения

Наблюдения

“Magic Feature”

Кросс-валидация

5-Fold Stratified CV

Признаки

Severity:

1. Severity_type

Resource:

1. Resource min

2. Resource max

3. Resource count

Признаки

Event:

1. Event min

2. Event max

3. Event count

Log:

1. Log min

2. Log max

3. Log count

Признаки

Log:

1. Volume min

2. Volume max

3. Volume min / volume sum

4. Volume max / volume sum

5. Volume mean

6. Volume median

7. Volume sum

8. Volume std

Признаки

Order

1. Absolute order

2. Location

3. Order in location from the beginning

4. Order in location from the end

5. Size of location

6. Order in location from the beginning / Size of location

7. Order in location from the end / Size of location

Признаки

Location

1. Location id

One-Hot-Encode

1. Severity

2. Resource

3. Event

4. Log

5. Location

Признаки

TF-IDF

1. Resource

2. Event

3. Log

One-Hot-Encode sets for one id

1. Resource

2. Event

Признаки

2-way interactions

1. Event-event

2. Resource-resource

3. Event-resource

Group order

1. Severity

2. Event

3. Resource

4. Log

Признаки

Cumulative sum from the beginning

1. Severity

2. Resource

3. Event

Cumulative sum from the end

1. Severity

2. Resource

3. Event

Схема решения

Data

5-fold

5 XGBs2 ETs

Stacking

Blending

Result

Stacking-Blending

Результаты

Вопросы

Спасибо за внимание!