When users realized that the "application" on the ICO was more important than the "token", the virtual currency began to decline in June 2018, prompting users in the market to pay attention to the development of the tokens. The development of DApp began to expand. The DApp industry recorded a turnover of 33.6 billion RMB in 2018. Almost 90% of the turnover comes from DApp games.

Because DApp game is built on the blockchain, it greatly restricts the gameplay. Currently, the common DApp games are: playing cards and dice.

For ethereum, 2016 might be a tough year, the DAO has been stolen 3.6 million ETH, equivalent of $70 million at that time, due to improper contract design. As a result, more and more automatic verification tool for smart contract come out to prevent potentially huge financial loss.

Today, we will be looking at how formal verification tools work on smart contract, how can we use mathematical proof to ensure the quality of program.

As a great glue language, Python could (definitely) orchestrate many modern and powerful tools to build a scientific cluster. This talk will illustrate one of the real world examples, which is a cluster built and running on top of LXD/LXC/KVM/MaaS/public clouds so you may thus be a amateur CFD (computational fluid dynamics) or physics researcher.

The normal people who doesn't coding could promote Open Source projects or campaigns.We can do my best. People will know what is Open Source and its spirit by the public relation plan. Companies will know how to use Open Source upgrading their software by sponsor Open Source compaigns.

The EZIO Project proposes a reasonably efficient P2P soultion to deploy bare-metal operating system based on open source software technologies, such as libtorrent-rasterbar and CloneZilla. In this talk, we will discuss the difficult situation of bare-metal deployment in HPC or Cloud, and the performance, reliability and flexibility improvements on existing technologies, such as CloneZilla Multicast Mode.

EZIO has integrated in CloneZilla to provide 1-to-many bare-metal system provisioning on-the-fly, and tested successfully in HPC.

I will introduce to Rust, including the principles, the traits, and the current state of the Rust community. After that, I am going to talk about how to build a minimal DBMS from scratch - the StellarSQL project. In this talk, the following is covered. What is a DBMS? What is the architecture of the DBMS? What is the progress in developing the project? What are the existed resources in the community that I use for the developing? The speech would manifest that developing a small DBMS is fascinating and Rust is cool and powerful.

AI, or more precisely neural network-based machine learning, is getting popular on edge devices. In this talk I'll review TensorFlow Lite + Android NN, the most popular open source NN frameworks on Android, and share my experience of using some recently new features of TFLite, such as TFLite GPU delegate.

A smart flower atlas, built on open source image recognition systems,
powered by advanced Artificial Intelligence (AI) and Augmented Reality (AR) technologies.

We’ve done real-time identification mobile apps on iOS and Android,
without ever taking a picture. We continue to collaborate with
specialists to improve the system.

This project won 2018 g0v Civic Tech Grant. Landing page:
https://plant-tw.github.io

It is expected that release date of Hyperledger Fabric 2.0 will be in June. This speech will review summary of features in fabric 1.4 LTS and look forward coming design in fabric 2.0. Along with the new version preview, we will discuss the underneath philosophy and concern about why road map diverge from its original proposal in 1.x

長久以來，中文正體的電腦發展都是主要以台灣為基礎。而Windows中的標楷體是香港市民經常使用的電腦字體。但原來標楷體與香港的慣常寫法有很多差異，造成很多應用和學習上的困惑！香港人可以如何自救？有甚麼方法幫到香港人？