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Showing content with the highest reputation on 11/24/20 in all areas

  1. I was at the park with my son today. Last night he'd been asking his mother some really big questions. Why are we here? What does it all mean? Why do we have to have blood when it's so messy? Things like that. He is almost 7 now, if you're familiar with CDP, you'll be aware that around his age, we start to form the cognitive faculties we need to be able to utilise logic. So I asked him today "What do you think the meaning of life is? Answer honestly, I won't judge what you say." His response was this; "To do everything that you can live with." So what little wisdom gems have you heard from a child that were pretty interesting to hear, despite their age? I mean to ask him more questions about his answer later, for now I think it is a good start to let him have a simple answer to a complex question, for a little while.
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  2. What have you done so far ? I would start by numbering the bottles A, B ,C, D and E. Then perhaps prepare a reaction table of combining small samples from all pairs of bottles.
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  3. This example is not one of wisdom, but did give me great hopes that my son had developed the same warped sense of humour. At a dinner to celebrate his 11th birthday I was pontificating about the supposed origin of the name America from that of the explorer Amerigo Vespucci. Quick as a flash my son said, "That's quite something. Having a continent and a fairground a attraction named after you." I looked at him, puzzled? "A fairground attraction?" "Yes," he replied "A merry-go-round."
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  4. You actually need even more than that - you need a non-vanishing quadrupole or higher multipole moment. This wouldn’t be the case for your average planet, unless for some reason it has an odd shape.
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  5. Meanwhile, I find myself feeling comforted and assured by the selections Biden is making/announcing for his team. There’s no direct comparison, but is like bringing in some major league all-star players after years watching the peewee league swinging and missing.
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  6. Most sources I've seen regarding the patterns states tidal flexing is involved. https://en.wikipedia.org/wiki/Europa_(moon) has plenty of references. Here is a paper discussing gravitational waves and tidal effects: Tidal forces are gravitational waves: https://arxiv.org/abs/1912.00591 This does not say that there is anything special with Jupiter and Europa. Assuming the paper is correct*, and tidal models of Europa, the answer to the question in opening post may be more a matter of definitions. *) I have not read it in any detail.
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  7. My cousin's son to his big sister " stop tickling me or I will wee in my pants".
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  8. Markus and Joigus have offered some mathematical insights to uncertainty but it is also useful to know that both the maths and the physics say the same thing. Just as both maths and physics says that distance = speed x time, Maths offers this as an algebraic fact, whilst Physics considers the (physical) meaning of the variables and equations concerned, including the dimensional analysis of those variables and mathematical statements. So in Spectroscopy we observe that the single frequency line spectra are not actually perfectly single frequency, they are slightly blurred. This can be interpreted as the time taken for a system to actually perform the transition that absorbs or emits radiation.
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  9. How many meals a day does a mathematician eat? 9 They eat 3 squared meals a day. Good thing portion sizes are relative..
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  10. It's been archived here to read and download: https://www.biodiversitylibrary.org/item/23899#page/11/mode/1up
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  11. I would say that, if your goal is domain specific as in the example of sales that we’re rolling with, you would need some hard coded primitives/nouns that you can push to a “topic stack,” by which I mean that chains are fine for just handling responses but you will have some logic that isn’t a machine learning. Mainly though my point is that moving from discussing the items to checkout doesn’t actually change the topic but it adds a new, derived, topic unto the “stack” which in reality would be a higher level chain than the markov chain. So perhaps you have a high level chain that learns the users hop from discussing the item to the checkout and as it sees you moving topics this high level models moves the “chatbot” to a chain trained on topics regarding checkout of items (which would still have to delegate to some logic that eg checks that weight and/or the freshness of the item and can then give proper answers to questions one would have at checkout.) As you say this stuff is ongoing research: but you’ll definitely need to stack machine learning techniques alongside old school search to both keep track of the “topic stack” and correctly answer it. That’s how I’d go about solving the OPs problem but from what I’m gathering from his post this is not a weekend project.
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  12. I haven’t used a markov chain in years so I don’t know a good tutorial but the first google result was a python library https://github.com/jsvine/markovify May I ask what did you try in regards to neural networks? There are lots of architectures of ANNs and things like a simple CNN will probably get you nowhere fast but RNNs will far exceed the capabilities of a markov chain.
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  13. Thats it, Im closing this thread. Swansot please don’t bring this topic again and Phi you know better than this. Geez.
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  14. Everyone should be God-Centered versus being self-centered. Anyone's god can be anything including themselves, scientists, politicians, spirituals, priests, satan, jinns, magicians, false prophets, folks of people, etc... The wise person seeks for the Greater Than the greater and greater and The Most Powerful God to make Him The Centerd! And afraid of Him! And be pleasured based on His Pleasures and be displeasure based on His Displeasure! Even if they are against his own positions[race/nation/country/parents/previous minds] Because knows that there won't be any way toabsconded from He!
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  15. all functions of physics on a graph extends in both directions however they cannot go in both directions at the same time. Usually the variables of the physics equation equate to the positive direction of the line or curve and terminate due to the finite value of the variables. upon termination, it will extend in the negative direction of the function from the point of origin. the key principle of classical mechanics is opposite direction equal magnitude for all equations. so a positive value plus the same value negative value equals zero. it is assymetric in the math and physics and you can clearly see it in the graph. case in point my reverse order math. E=MCsquared + zero, move the MC squared over the equal sign and you get E - MC squared = zero. the same function can also be expressed as Zero + E=MC squared. Move it across the equal sign and you get -E+MCsquared=zero. Notice the energy and mass variables transition from positive to negative referring to opposite direction equal magnitude. My simple manipulation of the same equation refers to equal to zero on both ends. This is clearly stated in the function when you graph any equation. It will reverse the effect in the opposite direction. Time as time frames like all equations must obey this math.
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  16. In engineering the only way to make an air conditioner produce cold air is to exhaust hot air outside the window. obviously, hot air is a positive temperature while cold air is a negative temperature. in that respect the temperature goes both directions.
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