This Week I Learned - Week #29 2023
This Week I Learned -
* Glide simplifies building a custom app or web page.
* Alexa Skills Inventor is a program on MIT App Inventor that enables students (ages 14+) to code their own Alexa Skills. No Amazon device is required. All skills are built with block code, making it easy for anyone to learn the basics of voice AI and invent their own Alexa Skills.
* Download and execution time are the primary bottlenecks for loading scripts in 2019. Aim for a small bundle of synchronous (inline) scripts for your above-the-fold content with one or more deferred scripts for the rest of the page. Break down your large bundles so you focus on only shipping code the user needs when they need it. This maximizes parallelization in V8. On mobile, you’ll want to ship a lot less script because of network, memory consumption and execution time for slower CPUs. Balance latency with cacheability to maximize the amount of parsing and compilation work that can happen off the main thread. - Addy Osmani
* Open source is not a good business model...don’t start an open source project with intent to make money. - Lessons learned from 15 years of SumatraPDF, Krzysztof Kowalczyk
* How complex systems fail [PDF]
* Azure AD is becoming Microsoft Entra ID
* Azure Security Services Decision Tree Mind Map by Igor Iric
* Shifting left is for suckers. Shift down instead.
* Meta's Llama-2 models are now available in Azure & AWS. It is estimated that LLaMA 2 cost Meta $22Mn.
* The Llama 2 model comes with a license that allows the community to use, reproduce, distribute, copy, create derivative works of, and make modifications to the Llama Materials published by Meta. While it may not qualify as an open source license, it permits commercial usage with a few restrictions. - 10 Things To Know About Meta's New Large Language Model
* Businesses and users are willing to use Natural Language Queries as an alternative to User Interface. However, to ensure that AI solutions are reliable and effective when brought into real-world applications, GPT-based models must undergo fine-tuning to really apply to specific use cases and domain knowledge. GPT-4 provides more opportunities to provide context for prompts and has significantly fewer hallucinating errors.
* The GPT models that can be fine-tuned include Ada, Babbage, Curie, and Davinci. These models belong to the GPT-3 family. Also, it is important to note that fine-tuning is currently not available for more recent GPT-3.5-turbo models or other GPT-4 (as of May 23). - DataCamp
* From a StackOverflow post: You can't fine-tune the GPT-3.5 or GPT-4 models. You have two options to customize answers -
OPTION 1: Using LlamaIndex or LangChain
What they do is use LlamaIndex (formerly GPT-Index) or LangChain. Both of them enable you to connect OpenAI models with your existing data sources.
OPTION 2: Using the OpenAI Embeddings API endpoint
You can use Pinecone to store embedding vectors. Pinecone is designed specifically for handling this type of data.
* Khanmigo is Khan Academy’s AI-powered guide. User requests are transformed into prompts with injected context. The system relies on GPT’s capability to handle up to eight times more injected context. GPT-4 based.
* Swiggy has formed a dedicated team of around five members who are tasked only with finding new applications of artificial intelligence (AI) throughout the company. More recently the company launched WhatToEat, a feature which improves food discovery by allowing users to explore curated options based on their mood and cravings. - MoneyControl
* The Dutch train their children to ride a bicycle so they can confidently ride in the roads when they are around 12 years of age, just before they start secondary school. Only if they pass their traffic exam are they awarded their Verkeersdiploma (traffic certificate).
* Wikipedia provides a good reminder while downloading images. It is helpful as permission codes like CC BY-SA 3.0 may not be widely understandable.
* Citizen science (similar to community science , crowd science , crowd-sourced science , civic science , participatory monitoring, or volunteer monitoring ) is scientific research conducted with participation from the general public (who are sometimes referred to as amateur/nonprofessional scientists) - Wikipedia
* Matcha is a tea powder made from finely ground green tea leaves that go through a unique process. The green tea plants used for matcha are shade-grown for three to four weeks before harvest; the stems and veins are removed during processing.
* Dynamic Digital Radiography (DDR) is a novel low-dose X-ray imaging technique enables visualization of anatomy in motion. The DDR can acquire up to 15 sequential radiographs per second and play them back as a cine loop, allowing you to observe the physiological cycle and as individual radiographic images (up to 17"x 17" in size). This advancement in digital X-ray technology is FDA-approved. DDR is X-ray that moves!
* Gourmet food is any food of high quality and/or rarity, crafted to deliver exquisite taste and presented in a pleasing fashion. A gourmet chef is a superior chef who has undergone extensive culinary training and is held in high esteem in his/her profession.
* As per the Motor Vehicle insurance policy terms and conditions of HDFC ERGO General Insurance (general exclusions clause 8), claims are not entertained for any bodily injury sustained whilst or as a result of riding or driving a motorcycle or motor scooter over 150 cc.
* Hyderabad was built along the river Musi, one of the tributaries of river Krishna. The city was spread over 55-60 sq km during the 1908 floods. From the year 1990 to 2000, the city of Hyderabad developed from 170 sq km to 650 sq km to accommodate the increasing population due to Industrial IT Industry and pharma sector.
* Rachakonda and Cyberabad Police Commissionerates control Hyderabad’s east (5,100 sq. kms) and west (3,680 sq. kms) geographies respectively.
* According to Greater Hyderabad Municipal Corporation (GHMC), the city has a road network of about 9,100 kms. The footpath network, as per mandatory requirement for four lane roads, is about 800 kms.
* Hyderabad has a population of 82 lakh and another 10 lakh floating daily.
* In South Asian folkloric tradition, aggrieved women who die in childbirth or at the hands of abusive in-laws come back as a demonic revenant creature called a Churel. Churel are shape shifters who cannot hide their backwards-facing feet. They typically take on the appearance of a beautiful woman in the trees who lures men into secluded forests to kill them and steal their vitality. A woman who returns as a Churel is said to target the male members of her former family first, in order to get revenge. Within Hindu belief, Churels may become into dakinis (flesh eating female demons/ demi gods) and serve the goddess Kali, joining the goddess' routine in feasting on human flesh and blood. - IMDb
* The real need is not to reclaim the Constitution, as many would have it, but instead to reclaim America from constitutionalism. The idea of constitutionalism is that there needs to be some higher law that is more difficult to change than the rest of the legal order. - NYTimes
* "Without change, there won't be butterflies" - Maya Angelou
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