DETR still uses CNN for feature extration and then use transformer to capture context of objects (boxes) in images. Compared with previous object detection model, e.g., MaskRCNN, YOLO, it doesn’t need to have anchor and nonmaximal suppression, which is achived by transformer. Besides DETR could be directly applied for panoptic segmentation (joint semantic segmentation and instance segmentation).

AEye.ai shared comparison of time of flight (ToF) and Frequency Modulated Continuous Wave (FMCW). I had worked in ToF when I was in Samsung (2014~2016) and am very interested in learning more of it.

This notebook shows how to read the option chain data from Yahoo finance with Pandas. Especially we will use pandas.read_html.

I will create a new reading note series based on Must-read AI Papers from Crossminds.ai.

The price of option depends on many factors, current stock price, strike price, implied volatility and expiration date. According to Investopedia, the most common pricing model is Black Scholes Model. Howerver, it does not take into account the execution of American Style options, which can be exercised at any time before, and including the day of, expiration, for which Binomial Option Pricing Model should be used.

Transformer architecture has achieved state-of-the-art results in many NLP (Natural Language Processing) tasks. Though CNN has been the domiant models for CV tasks, using Transformers for vision tasks became a new research direction for the sake of reducing architecture complexity, and exploring scalability and training efficiency.

Most people know price earning ratio (P/E ratio or PE) and use it a way of value whether the stock is over-valued or not.

The MacPorts Project is an open-source community initiative to design an easy-to-use system for compiling, installing, and upgrading either command-line, X11 or Aqua based open-source software on the Mac operating system.

This article is mostly based on my understanding of 段永平投资问答录 and The Essays of Warren Buffett: Lessons for Investors and Managers. Both books recommends value investing and their authors have been very successful in their investment.

I have heard about recommendations of converting regular traditional IRA/401K to Roth via backdoor. After reading an internal post from company I finally understood why.