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finally figured out how to social network lookups

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reaction.la 2022-07-02 16:44:09 +10:00
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17
docs/recognizing_categories_and_instances.md
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@ -90,7 +90,7 @@ The optimal instance recognition algorithm, for normally distributed
attributes, and for already existent, already known categories, is Mahalanobis
distance
Is not the spam characteristic of an email just its $T.(S-G)$, where $T$ is
Is not the spam probability of an email just its $T.(S-G)$, where $T$ is
the vector of the email, and $S$ and $G$ are the average vectors of good
email and spam email?
@ -103,9 +103,18 @@ normal.
But variance is, approximately, the log of probability, so Mahalanobis is
more or less Bayes filtering, or at least one can be derived in terms of the other.
So we can reasonably reduce each email into twenty questions space, or, just
to be on the safe side, forty questions space. (Will have to test how many
dimensions empirically retain angles and distances)
So we can reasonably reduce each email into twenty questions space, albeit in practice, a great deal more than twenty. Finding far from random
dimensions that reduce it to a mere twenty or so is an artificial intelligence
hard problem. If random dimensions, need $\bigcirc20\log{(n)}$ dimensions
where $n$ is the number of things. And $n$ is apt to be very large.
Finding interesting and relevant dimensions, and ignoring irrelevant and
uninteresting dimensions, is the big problem. It is the tie between
categorizing the world into natural kinds and seeing what matters in the
perceptual data while ignoring what is trivial and irrelevant. This requires
non trivial non local and non linear combinations of data, for example
adjusting the perceived colour of the apple for shadow and light colour, so
see the ample, rather than merely the light scattered by the apple into the eye.
We then, in the reduced space, find natural groupings, a natural grouping
being an elliptic region in high dimensional space where the density is

28
docs/social_networking.md
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@ -363,6 +363,34 @@ way hash, so are not easily linked to who is posting in the feed.
This handles public posts.
### Kademlia in social space
The vector of each identity is a sequence ones and zeros of unbounded
length, unboundedly large dimension, but in practice you will not need
anything beyond the first few hundred.
We deterministically generate the vector by hashing the public key of the identity.
We do not have, and do not need, an exact consensus on how much of the
vector to actually use, but everyone needs to use roughly the same amount
as everyone else. The amount is adjusted according to what is, over time,
needed, by each identity adjusting according to circumstances, with the
result that over time the consensus adjusts to what is needed.
Each party indicates what entities he can provide a direct link to by
publishing the sum of the vectors of the parties he can link to - and also
the sum of the their sums, and also the sum of their ... to as many deep as
turns out to be needed in practice, which is likely to two or three such
vector sums, maybe four or five.
When someone is looking to find how to connect to an identity, he goes
through the entities he can connect to, and looks at the dot product of
their sum vectors with target vector.
He contacts the closest entity, or a close entity, and if that does not work
out, contacts another. The closest entity will likely be able to contact
the target, or contact an entity more likely to contact the target.
## Private messaging
Private messaging is trivial. There is no end of excellent existing software

28
docs/writing_and_editing_documentation.md
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@ -307,13 +307,15 @@ In this table, edited in a fixed font, you are using whitespace and blank lines
### Grid tables
Allows multiline, and alignment, but visual studio does not like it, and you still have to count those spacees
Allows multiline, and alignment, but visual studio does not like it, and you still have to count those spaces
+---------------+---------------+--------------------+
| Fruit | Price | Advantages |
+===============+==============:+====================+
| Bananas | $1.34 | - built-in wrapper |
| | | - bright color |
| Bananas | $1.34 | Mary had a little lamb whose fleece was white as snow, and everywhere that |
| | | Mary went the lamb was sure to go |
| | | |
| | | bright color |
+---------------+---------------+--------------------+
| Oranges | $2.10 | - cures scurvy |
| | | - tasty |
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@ -493,19 +504,12 @@ defined by very small source code.
start animation
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A simple scalable vector graphic