sradman

75 ms·

631.
by sradman 6y ago
This type of analysis is built on the assumption that the main function of education is student transformation. I think ranking is implicit in the existing system and online education platforms ignore the ranking aspects.
632.
by sradman 6y ago
I like the methodology of the Join Order Benchmark (JOB). The key takeaway is PostgreSQL specific: > ...the most important statistic for join estimation in PostgreSQL is the number of distinct values. These statistics are estimated from
633.
by sradman 6y ago
Very impressive. The problem seems much more daunting than what is typically tackled with robotics. Kudos to the team. Does this mean that the electric utilities will be joining the cable tv and telephone utilities in offering internet serv
634.
by sradman 6y ago
Search "daniel lemire" "AVX-512". Vectorizing random number generators for greater speed: PCG and xorshift128+ (AVX-512 edition) [1]. AVX-512: when and how to use these new instructions [2]. The dangers of AVX-512 t
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by sradman 6y ago
I'm a little shocked at how so few people outside of the column store industry are aware of the impact SIMD and compressed bitmap indexes has had. If in doubt, search on "daniel lemire" "simd".
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by sradman 6y ago
This is important because it relates to the interpretation of the data related to the same timelines that raised the sea levels and, therefore, the water table level that flooded these underground caves in the limestone karst. The interpret
637.
by sradman 6y ago
From one of the image captions: > Kanzi blowing soap bubbles, demonstrating voluntary breath control, which apes were long said to lack. Aside from the quality narrative surrounding captive bonobo research, this demonstration of breath c
638.
by sradman 6y ago
HN July 4th thread Scuba diver accidentally discovers prehistoric industrial complex in Mexico [1], the original paper [2], and the spectacular underwater footage included in a CBC News video [3] via joachimma [4]. Yesterday’s HN thread [
639.
by sradman 6y ago
As I understand it, Pulsar combines Kafka-like event processing with RabbitMQ-like message queueing in a single system. It came out of Yahoo, is JVM based, and is often combined with Flink or Spark for the streaming interface. At its heart
640.
by sradman 6y ago
> This leaves Intel with one path: if you can’t beat them, join them. Intel will re-take an ARM license (it sold its ARM-based XScale business to Marvell in 2006) and come up with a competitive ARM SoC offering for PC OEMs. I find this p
641.
by sradman 6y ago
HN July 4th thread Scuba diver accidentally discovers prehistoric industrial complex in Mexico [1], the original paper [2], and the spectacular underwater footage included in a CBC News video [3] via joachimma [4]. [1] https://
642.
by sradman 6y ago
The style="overflow-x:auto;" seems to be the default now. "Ask and thou shall receive"? I'm pretty sure it wasn't scrolling when I first tried it but I may have just started searching first out of curiosity. Se
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by sradman 6y ago
Cloudflare is reporting a 502 Bad Gateway (for me). The article is available at The Internet Archive [1]. [1] http://web.archive.org/web/20200712144005/https://dailyjag.c...
644.
by sradman 6y ago
I was conflating two useful sleep tracking metrics, SpO2 and Sleep Stages, my bad. You are correct, Garmin’s sleep tracking does not require the red LED SpO2 to estimate sleep stages. Since the sleep stage algorithm is Machine Learning deri
645.
by sradman 6y ago
> The answer lies in modern society’s preference for specialization. Yet modern society also has a preference for a broad liberal arts education. Like bundling/unbundling and reductionism/synthesis, there seems to be an ongoing
646.
by sradman 6y ago
Simon chose to mimic a two-column layout using a table. I’m not sure if a overflow-x style [1] would work on GitHub or improve the responsive design. [1] https://www.w3schools.com/howto/howto_css_table_responsive.a...
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by sradman 6y ago
> The worthwhile problems are the ones you can really solve or help solve, the ones you can really contribute something to. This feels like Ricardo’s Comparative Advantage applied to a philosophy of Living the Good Life. The pleasure com
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by sradman 6y ago
Garmin acquired FirstBeat Analytics less than two weeks ago [1]. According to DC Rainmaker, "They power the vast majority of Garmin’s fitness and outdoor training-focused algorithms" but they are also used by other manufacturers.
649.
by sradman 6y ago
CRDTs are great examples of what the NoSQL movement called Eventual Consistency. I never understood why this movement assumed that abandoning ACID-style consistency automatically gave you Eventual Consistency. As a side question, have any n
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by sradman 6y ago
The problem might not be bad web form UX either. The general problem is one of a new code change requirement in a legacy system. Perhaps we should think about creating an On-Boarding document for new developers before dismantling the origin
651.
by sradman 6y ago
> There is reasonable agreement among taxonomists that a species should represent a distinct evolutionary lineage. But there is none about how a lineage should be defined. 'Species' are often created or dismissed arbitrarily, a
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by sradman 6y ago
> What workloads are so massively parallel that they can use 64 cores of x86 but can’t use the thousands of CUDA cores on a Quadro card? Column stores like SAP HANA. Compressed bitmap indexes leverage SIMD but not floating point matrix m
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by sradman 6y ago
Sure enough, it is too late to edit my comment but the Wikipedia page says: > A. fischeri have been most studied as symbionts of marine animals, including squids in the genus Euprymna and Sepiola, where A. fischeri can be found in the sq
654.
by sradman 6y ago
For clarification, jeffreyrogers correctly states that the HN headline, based on the NYTimes subtitle "A new genetic study suggests that Polynesians made an epic voyage to^ South America 800 years ago", is wrong. As "irration
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by sradman 6y ago
The paper resolves the controversy with the Easter Island (Rapa Nui) population. After colonization, the population from Chile mixed with the population from Rapa Nui. This paper conclusively shows that a 1200 AD (i.e. pre-colonization) eve
656.
by sradman 6y ago
I've seen schools of reef squid at night and your description confused me. The Aliivibrio fischeri, according to the Wikipedia article, are only found in Hawaiian Bobtail Squid which I've never encountered before. I've seen o
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by sradman 6y ago
Original paper [1]: [1] https://repository.kaust.edu.sa/handle/10754/663708
658.
by sradman 6y ago
Indeed they are quite "vibrant", as the article states: > This may also explain the mantle colors of giant clams. The idea is that the vibrant colors of giant clams are not due to optical differences in the tissue, but rather d
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by sradman 6y ago
Yesterday’s HN thread on the NYTimes article covering the same Nature paper - Polynesian DNA suggests epic voyage to South America 800 years ago : https://news.ycombinator.com/item?id=23771756
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by sradman 6y ago
It is 2020. If you comparing the performance of PostgreSQL and DynamoDB in terms of GROUP BY analytics, you have probably missed the Column Store revolution. Now if these two authors actually focused on the trade-offs between these two arch

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