一些在 Jupyter Notebook 上開發機器學習專案的經驗分享

1. Jupyter Notebook Hold Spark
Machine Learning
-
Wayne

2. • Machine Learning
•
• https://
www.facebook.com/wjmuse
About Me

3. What We Do?
• A lot of Data
• 6 40
• A lot of Visitor Log
• 2800 PV 770 UV
•

4. • Google Facebook
• PIXNET
PIXNET

5. Machine Learning
• label data
•
Gender
Age
Slackbot
Rank

6. We Almost Build Everything
on Notebook
• Python
• Dashboard
• Spark
• script daemon

7. Play Jupyter with PySpark
Config PySpark driver
Execute PySpark on standalone mode

8. Run as Script or Daemon

9. Pandas Dataframe on
Notebook is Wonderful
From File
From Redshift
From Google Spreadsheet
concat, drop_duplicates, dropna, groupby, …
pandas.read_csv(DICT, header=None, sep=" ", names=[‘word’,'weight','type'])
pandas.read_json(TOP_ARTICLE)
sql = “select keyword, sum(clicks) AS cc from search_console WHERE … GROUP BY …”
df = read_sql(sql, con=con)
sheet = gc.open_by_url(link)
spreadata = pandas.DataFrame(sheet.get_all_records())

10. ipywidgets
• sliders, progress bars, checkboxes, buttons, …
qgrid
• Uses SlickGrid to render pandas DataFrames within a Jupyter
notebook.
IPython.Display
• SVG, Math, Javascript, IFrame, HTML
nbviewer
• A simple way to share Jupyter Notebooks
plotly
• Make charts and dashboards online

13. Components
Analyst
Frontend
Business
Reporting

14. word-library
Jieba
word2vec
data-utility
BigQueryApi
RedshiftApi
url2content
url2keyword RESTAPI
Scheduling
SlackBot Api
Dashboard
Build Model
...
Notebook control ML data pipeline
Core-Algorithm

15. Spark + Jupyter

16. or
• training & prediction
• training
• cookie
•
•
• bottleneck
•

17. •
• 4 (about 4 billions record)
• 3
• Run 1 worker with 4 executor instances (per 2 cores, 4 GB RAM)
• Bottleneck
• Query ordered data with doing mapPartitions
• Merge 20 millions cookies from 4 billions rows
• ReduceByKey will do lots of shuffle
• Feature selection (sklearn.feature_selection.chi2)

18. spark-defaults.conf
spark-env.sh

19. 1 - server

20. 2 - stay up 2

22. Doing Spark with PHP?
Model Idea
500
training data ( )
3 PHP script
.....

23. Doing Spark with PHP?
32 Core
Executor
spark.master local[*]
spark.executor.instances 32
sc.textFile(“url.csv”).repartition(128)
Executor
Executor
Executor
Executor
Executor
PHP
PHP
PHP
PHP
PHP
PHP

24. MySQL
...

25. Build word2vec Model
•
• 120
•
• We choose cppjieba [github]
• thread_number=16
• spark.executor.instances 32

27. • Jupyter Notebook
(data pipeline)
• Jupyter Notebook reopen hard to track status
• Slack Channel
• Jupyter Notebook

28. • Spark
• Jupyter Notebook production

30. Data Scientist Tool Set
-> ->

31. Use Notebook to define machine
learning workflow
Jupyter Lab
• The next generation of the Jupyter Notebook
• Jupyter team + Bloomberg + Continuum Analytics
Google Datalab
• Cloud Datalab is built on Jupyter, enables analysis of data on BigQuery,
GCE, and Cloud Storage using Python, SQL, and JavaScript.
Domino
• A Platform to Accelerate Data Science, makes data scientists more
productive and facilitates collaborative, reproducible, reusable analysis.
Zeppelin
• Inspired by iPython notebook focusing on providing analytical environment
on top of Hadoop eco-system.
Databricks Cloud Notebook
• Notebook Workflows as APIs that allow users to chain notebooks together
using the standard control structures of the source programming language.

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