Innovate with Common Spatial Data Infrastructure (CSDI) Spatial Data

The Common Spatial Data Infrastructure (CSDI) is a key initiative under the Smart City Blueprint for Hong Kong. The CSDI portal launched by the Development Bureau (DEVB) provides a map-based digital infrastructure as a one-stop platform to open and share spatial data. By allowing members of the public to search, view and download various kinds of spatial data from the portal, a wide range of possibilities for application development will be opened, the digital economy boosted and quality of life improved.

Dr. Chung Ng

Dr. Chung is a SVP at Group CTO Office of the HKT/PCCW Group, where he’s responsible for leading the group’s product and technology roadmap
and strategic development. He also represents the group as board member of Lynx Analytics.

Edmon Chung

Edmon Chung is a social innovator and entrepreneur. Edmon currently serves as the CEO of DotAsia Organisation, serves on the Executive Committee of Internet Society Hong Kong (ISOC HK), the Board of Make a Difference (MaD) Institute, and heads the secretariat for the Asia Pacific Regional Internet Governance Forum (APrIGF).

How I make a podcast website using serverless technology in 2023

In 2022, I launched a Kotlin podcast show, Kotlin Fireside Chat, with my friends in Kotlin User Group. Now, we're taking things to the next level by building a podcast website with a statistical analysis dashboard. We've built a static website using Jamstack and connected it to a serverless API written in Kotlin. In order to aggregate the listener number across platforms, such as YouTube, BiliBili, Ximalaya, Lizhi, Qingting, we've also created a crawler to grab those numbers and display them in a custom dashboard.

Adapting your Apps/Systems with Universal Acceptance Standard

The Domain Name System (DNS) has changed dramatically over the last decade. There are now more than 1,200 active generic Top-Level Domains (gTLDs) representing many different scripts and character strings of varying length (e.g., .дети, .london, .engineering). There are also more than 60 Internationalized Domain Names (IDNs) country code top-level domains (ccTLDs) representing global communities online in native scripts (e.g., .ไทย).

Interesting cases and tips in 2 years of Postgres experience

I want to talk about some interesting cases and tips that I met when using Postgres in my daily job, which are topics general enough that most developer may also meet in their daily jobs (even for non-Postgres developers).

  • Why LIMIT 1 is MUCH SLOWER than LIMIT 100?
  • What's wrong with JSONB? (hint: it's TOO robust)
  • Efficient query using LATERAL subquery (from 8s to 0.08s)

How to use verilator

There are many different kinds of programming paradigm such as high-level coding and low-level coding. Verilog is another kind of paradigm, this talk will bring an introduction how coding in Verilog looks like and help audiences to jump start on it.

(廣東話) Programming 有幾種係人都feel到唔同嘅大，例如high level programming就同low level programming好唔同。而Verilog又係另一種好唔同嘅編程範式，希望係呢個talk為大家介紹同埋幫大家極速起手。

(書面語) Programming有兩大範式 : 高級語言(python/java)和底級語言(assembly), 而verilog是有別於以上兩大類的另一編程範式, 希望係此演講為大家介紹和令大家起步編寫verilog。

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