Orchestrating the execution of workflows for media streaming service and even more Speaker: Shuen-Huei Guan One of advantages about cloud computing is potentially huge-scale resources for your task. And it's especially beneficial to data driven process with heavy computing. In this talk, the idea of job script to orchestrate the execution of workflows across multiple computing nodes is introduced. An implementation based on AWS SWF (Simple Workflow) is described with examples of processing for music streaming and video streaming in KKBOX. About the speaker Shuen-Huei Guan, or just Drake, started his career as a technical director and, then, R&D manager in animation industry for 9 years with Hollywood experts and ingenious artists. What he has been playing with are Pixar's RenderMan, stereoscopic vision, or even other computer graphics research papers. The only common thing within is Python, which he uses to build prototype or even final product. And then, he brought what cultivated from that visual industry into music industry, KKBOX. But, this time, the challenges come from video streaming service. Quite dramatic, right! 個人網頁連結 http://about.me/drakeguan Twitter @drakeguan 組織/公司 KKBOX 頭銜 Sr. Principal Engineer https://tw.pycon.org/2015apac/zh/program/92 ... https://www.youtube.com/watch?v=aCDt3RJoV54

Day 1, 14:05-14:35 Abstract In this talk, we will share the complete process of how Quark-Engine replaced its core library to enhance resilience and performance. Also, we will share the situations we came across and the strategies of keeping growing in the open-source community. Quark-Engine is a well-known open-source Android malware analysis engine written in python. Many essential features inside are based on Androguard, an open-source Python package for analyzing Android files. However, Androguard is no longer maintained by its author. To ensure the health of Quark-Engine, we had decided to replace Androguard with Rizin, one of the most popular open-source reverse engineering frameworks. There are many challenges behind this work, and we will share how we overcome each of them. Description Introduction of Quark-Engine In this talk, we will briefly introduce Quark-Engine, which covers the key features of Quark, the design of the scoring system, and the usage of Quark. Also, we will take an Android malware sample to show how Quark can analyze malware in a simple but practical way, and how Quark enhances the efficiency of malware analysis. Why does Quark-Engine need to change the core library? Androguard is an open-source Python package for analyzing Android files. With the help of Androguard, Quark can implement its essential features. However, the project is no longer maintained recently. The health of Quark-Engine is getting dangerous. Therefore, we decided to replace Androguard with Rizin, one of the most popular open-source reverse engineering frameworks and supported by a strong community. What is Rizin? Rizin supports executable file formats on most platforms. It can analyze files, reassemble, and debug, etc. Also, Rizin has a robust community to support the entire project. Besides, Rizin has almost all the features that Androguard has. It is a perfect solution for replacing Androguard. After the replacement, we found that not only Quark's health is getting better, but the performance also gets significantly improved. What’s the challenge of core library replacement Furthermore, the usage of the two libraries is different. Many functions in Quark are needed to redesign. During replacing the core library, we must ensure that everything goes on smoothly, which brings us a lot of challenges, but it also brings us a lot of fun. We will share all these interesting findings in this talk. The comparison of the two Quark-Engine Finally, we will compare the differences between Rizin and Androguard. We will deep dive into the detail, including performance and accuracy. Then, we will talk about how to evaluate the performance by common tools and the strategy we used to optimize the Rizin-based Quark. Slides not uploaded by the speaker. HackMD ... https://www.youtube.com/watch?v=yaAEoMSepqQ

Day 2, R0 14:05–14:35 想像我們飛過臺北的天空，欣賞梵谷和大師們筆下的臺北！ Deep Learning 讓這件事變得可能！ 這次短講，我們想和大家分享深度學習如何讓電腦學會大師的筆觸和風格(Convolutional Neural Networks, CNN)。接著我們分享從2015年至今，四個重要演算法的優缺點。最後，我們想分享我們結合在地特色實作的成果。 關於背景知識，並不設限，我們會從簡單的概念開始談起，如果有基本的數學認識尤佳。 Slides not uploaded by the speaker. ... https://www.youtube.com/watch?v=INPzwc-YmO4

Day 3, R0 11:30–12:00 I’ve been using IPython since the beginning of my adventure with Python. Over the years, I've picked up more and more tricks that it could do. In this talk, I would like to share some of them with you: - Documentation with ? and ??, running shell functions in IPython, magic functions - Profiles, startup files, configuration file, kernels, and extensions - How to better use IPython for debugging - How to use IPython for profiling - Alternatives to IPython REPL Slides: https://switowski.com/python/ipython/slides/2019/07/07/wait-ipython-can-do-that.html Speaker: Sebastian Witowski I'm a software engineer with 7 years of experience in full stack development, operations and leading small projects. I had worked as a DevOps at CERN for the past 6 years, but recently I have decided to move to Python consulting and trainings. In my spare time, I like to give talks about Python, coding and productivity. Python is my main programming language, but I don't shy away from using different languages as well. ... https://www.youtube.com/watch?v=wR3Oc-83jgQ