Created
October 22, 2020 05:20
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def f2(n) | |
return n.odd? ? (n * 3 + 1) / 2 : n / 2 | |
end | |
def seq(n) | |
l = [n] | |
while (n != 1) | |
n = f2(n) | |
l << n | |
end | |
return l | |
end | |
def count(ns) | |
return if (d(ns) != 0.5) | |
l = seq(n = ns.to_i(2)) | |
nw = ns.length | |
cg = l.index { |x| x < l[0] } | |
cg = l.size - 1 if (cg.nil?) | |
cm = (0..cg).max_by { |x| l[x] } | |
c = l.size | |
return { | |
'ns' => ns, | |
'c' => c, | |
'cm' => cm, | |
'nw' => nw, | |
'cg' => cg, | |
'cgnw2' => cg.to_f / nw | |
} | |
end | |
def fmt(a) | |
['l'].each { |x| a.delete(x) } | |
return a | |
end | |
def axes2(x2) | |
return x2.inject({}) { |h, x| h.merge({x => 'axes x1y2' }) } | |
end | |
def x1y2() | |
return $a2 if (!$a2.nil?) | |
$a2 = axes2(['z', 'cgnw2']) if ($a2.nil?) | |
return $a2 | |
end | |
def off() | |
return {'ns' => nil, 'z' => nil} | |
end | |
def opts() | |
return x1y2().merge(off()) | |
end | |
def d(s) | |
c = s.split('').select { |x| x == '1' }.size | |
d = c.to_f / s.length | |
return d | |
end | |
def dense(w, d) | |
w2 = w - 1 | |
a = (0...w2).to_a | |
s = '0' * w2 | |
(1..(d * w - 1)).map { a.delete_at(rand(a.size)) }.each { |x| s[x, 1] = '1' } | |
return ('1' + s) | |
end | |
def out(fno, a, a2 = {}, t = nil) | |
$f = {} if ($f.nil?) | |
if (!$f.member?(fno)) then | |
$f[fno] = {'fn' => "out#{fno}.txt", 'c' => 0} | |
$f[fno]['f'] = File.open($f[fno]['fn'], 'w') | |
end | |
f = $f[fno] | |
f['f'].puts(a.keys.join("\t")) if (f['c'] == 0) | |
f['f'].puts(a.values.join("\t")) | |
f['c'] += 1 | |
f['f'].flush | |
return if ((f['c'] - 1) % 1000 != 0) | |
d = (f['c'] / 2000).to_i | |
d = 1 if (d == 0) | |
f2 = File.open("gnuplot#{fno}.cmd", 'w') | |
fn = f['fn'] | |
st = t.nil? ? 'unset title; ' : "set title '#{t}'; " | |
k = "key top left box opaque" | |
f2.puts("set ytics nomirror; set y2tics; set colors classic; set #{k}; #{st}; plot \\") | |
(a.keys - ['t']).each \ | |
{ | |
|x| | |
next if (a2.member?(x) && a2[x].nil?) | |
f2.puts("'#{fn}' using (column('t')):(column('#{x}')) every #{d} with line title '#{x}' #{a2[x]}, \\") | |
} | |
f2.puts | |
f2.close | |
end | |
def rank(x) | |
return -x['z'] | |
end | |
def adj(x, wt, km) | |
z = 0 | |
km.keys.each \ | |
{ | |
|k| | |
if (x[k].nil?) then | |
z = nil | |
break | |
end | |
z += (x[k] - wt["#{k}_a"]) / wt["#{k}_s"] * km[k] | |
} | |
x['z'] = z.nil? ? 0.0 : z | |
raise [x['z'], wt].to_s if (!x['z'].finite?) | |
return x | |
end | |
def fmt2(x) | |
x = x.dup | |
x.keys.each \ | |
{ | |
|k| | |
x.delete(k) if (k.end_with?('s')) | |
} | |
return x | |
end | |
def add(bs, km, h, ns, l1, wt, t) | |
return 0 if ((a1 = count(ns)).nil?) | |
j = ns.length | |
h[j] = [] if (!h.member?(j)) | |
x = adj(a1, wt, km).merge({'t' => t}) | |
return 0 if (h[j].map { |x1| x1['ns'] }.member?(x['ns'])) | |
h[j] << x | |
h[j].sort_by! { |x| rank(x) } | |
h[j][bs..-1] = [] if (h[j].size > bs) | |
x1 = x.dup | |
out(1, x1, opts()) | |
l1 << x1 if (!l1.nil?) | |
out(2, fmt2(wt).merge({'t' => t}), {'cgnw2_a' => 'axes x1y2', 'cgnw2_s' => 'axes x1y2'}) | |
return 1 | |
end | |
def initd(w) | |
return(dense(w, rand)) | |
end | |
def initb(w) | |
r = rand | |
return '1' + (1...w).map { rand < r ? '0' : '1' }.join | |
end | |
def initw(w) | |
s = dense(w, 0.5) | |
m = rand(w) | |
i = rand(w - m) + 1 | |
s[i, m] = rand(2).to_s * m | |
return s | |
end | |
def initr(w) | |
s = '1' | |
b = 0 | |
m = rand(w - 1) + 1 | |
while (s.length < w) | |
z = w - s.length | |
s += b.to_s * [rand(m - 1) + 1, z].min | |
b ^= 1 | |
end | |
return s | |
end | |
def init(w) | |
m = rand(w) | |
ns1 = dense(w, 0.5) | |
ns2 = initr(w) | |
ns1, ns2 = [ns2, ns1] if (rand(2) == 0) | |
i = rand(w - m) + 1 | |
ns1[i, m] = ns2[i, m] | |
return ns1 | |
end | |
def initx(w) | |
return '1' if (w == 1) | |
ns = dense(w, 0.5) | |
r1, r2 = (1..2).map { rand(w - 1) + 1 }.sort | |
w2 = r2 - r1 + 1 | |
s1 = ['01', '10'][rand(2)] | |
s = (s1 * ((w2 / 2) + 1))[0...w2] | |
ns[r1..r2] = s | |
return ns | |
end | |
def range(w) | |
return [1] if (w == 1) | |
a = (1..w).to_a | |
l = (1..2).map { a.delete_at(rand(a.size)) }.sort | |
return (l[0]..l[1]).to_a | |
end | |
def scatter(w) | |
return [1] if (w == 1) | |
a = (1..w).to_a | |
c = rand(a.size) + 1 | |
l = (1..c).map { a.delete_at(rand(a.size)) }.sort | |
return l | |
end | |
def mut(ns, l) | |
ns2 = ns.dup | |
l.each { |i| ns2[i, 1] = (ns[i, 1].to_i ^ 1).to_s } | |
return ns2 | |
end | |
def muta(ns) | |
return mut(ns, range(ns.length - 1)) | |
end | |
def mutb(ns) | |
return mut(ns, scatter(ns.length - 1)) | |
end | |
def remix(ns, l1) | |
ns2 = ns.dup | |
l2 = l1.shuffle | |
l1.size.times { |i| ns2[l2[i], 1] = ns[l1[i], 1] } | |
return ns2 | |
end | |
def remixa(ns) | |
return remix(ns, range(ns.length - 1)) | |
end | |
def remixb(ns) | |
return remix(ns, scatter(ns.length - 1)) | |
end | |
def inner(ns1, ns2) | |
a, b = [ns1, ns2].sort_by { |x| x.length } | |
d = b.length - a.length | |
i = rand(d + 1) | |
c = b.dup | |
c[i, a.length] = a | |
ns1.replace(b) | |
ns2.replace(c) | |
end | |
def mix(ns1, ns2) | |
ns1 = ns1.dup | |
ns2 = ns2.dup | |
inner(ns1, ns2) | |
return (0...ns1.length).map { |x| [ns1, ns2][rand(2)][x, 1] }.join | |
end | |
def cut(ns1, ns2) | |
ns1 = ns1.dup | |
ns2 = ns2.dup | |
inner(ns1, ns2) | |
i = rand(ns1.length) | |
return ns1[0...i] + ns2[i..-1] | |
end | |
def ext(ns) | |
ns = ns.dup | |
(rand(3) + 1).times { ns[rand(ns.length) + 1, 0] = rand(2).to_s } | |
return ns | |
end | |
def short(ns) | |
return ns if (ns.length == 1) | |
ns = ns.dup | |
(rand([ns.length - 1, 3].min) + 1).times { ns[rand(ns.length - 1) + 1, 1] = '' } | |
return ns | |
end | |
def top(h1) | |
return h1[rand([h1.size / 4, h1.size].max)] | |
end | |
def stat(l) | |
return 0, 1.0 if (l.empty?) | |
t = l.inject { |a, x| a + x } | |
t2 = l.inject(0) { |a, x| a + x ** 2 } | |
c = l.size | |
a = t.to_f / c | |
z = t2.to_f / c - a ** 2 | |
sd = Math.sqrt(z < 0 ? 0 : z) | |
raise if (sd.nan?) | |
return a, sd | |
end | |
def dist(km, h, wt, l1) | |
l = h.values.flatten | |
['cgnw2', 'cm', 'cg', 'c'].each \ | |
{ | |
|k| | |
a, sd = stat(l.map { |x| x[k] }) | |
sd = 1.0 if (sd == 0) | |
wt.merge!({"#{k}_a" => a, "#{k}_s" => sd}) | |
} | |
end | |
def nonnil(x, y) | |
return x.nil? ? y : x | |
end | |
def sum(l) | |
return l.inject { |t, x| t + x } | |
end | |
def weighted(ops, ar, ar2, ar1) | |
ops.size.times \ | |
{ | |
|i| | |
next if (ar1[i] == 0) | |
ar[ops[i]] = (ar1[i].to_f / ar2[i]).round(3) | |
} | |
return rand(ops.size) if (ar.size != ops.size) | |
ar.replace(Hash[ar.sort_by { |x| -x[1] }]) | |
wt = sum(ar.values) | |
x = rand() * wt | |
i = x1 = 0 | |
i, x1 = [i + 1, x1 + ar[ops[i]]] while (x1 < x) | |
return i - 1 | |
end | |
def opt(km, w1, l1, n, w2 = false) | |
h = {} | |
ops = ['init', 'initd', 'initb', 'initw', 'initr', 'initx', | |
'muta1', 'mutb1', 'remixa1', 'remixb1', | |
'mix2', 'cut2'] | |
ops += ['ext1', 'short1'] if (w2) | |
bs = 500 | |
bc = 50 | |
t = c1 = 0 | |
wt = {} | |
ar1 = [0] * ops.size | |
ar2 = ar1.dup | |
ar = {} | |
loop \ | |
{ | |
if (c1 % 100 == 0) then | |
dist(km, h, wt, l1) | |
h.values.flatten.each { |x| adj(x, wt, km) } | |
h.each { |k, l| l.sort_by! { |x| rank(x) } } | |
end | |
break if (t == n) | |
r = weighted(ops, ar, ar2, ar1) | |
opc = ops[r] | |
op, p = opc.start_with?('init') ? [opc, 0] : [opc[0..-2], opc[-1..-1].to_i] | |
ks = h.keys.sort_by { |x| rank(h[x][0]) } | |
ks = ks[0...[ks.size, ks.size / 4].max] | |
case (p) | |
when 0 | |
w = ks.empty? ? w1 : ks[rand(ks.size)] | |
ns = send(op, w) | |
when 1, 2 | |
redo if (h.empty?) | |
h.delete(ks.pop) if (ks.size > bc) | |
arg = (1..p).map { ks[rand(ks.size)] } | |
l = arg.map { |x| top(h[x])['ns'] } | |
ns = send(op, *l) | |
ns[0, 1] = '1' | |
end | |
raise op if (ns[0, 1] != '1') | |
d = (t.to_f / (c1 + 1) * n / 2000).to_i | |
c = add(bs, km, h, ns, l1, wt, t) | |
c1 += c | |
ar1[r] += c | |
ar2[r] += 1 | |
if (t % 100 == 0) then | |
msg = {'t' => t, | |
'c1' => c1, | |
'f' => (c1.to_f / t * 100).round(2), | |
'ar' => ar, | |
'hmn' => ks.min, | |
'hmx' => ks.max, | |
'hc' => h.size, | |
'wt' => wt} | |
h0 = nonnil(h.fetch(ks[0], [])[0], {}).dup | |
msg2 = {'h0' => h0} | |
['h0'].each { |x| fmt(msg2[x]) } | |
$stderr.puts(msg) | |
$stderr.puts("\t" + msg2.inspect) if (t % 1000 == 0) | |
end | |
t += 1 | |
} | |
out(1, {}) | |
out(2, {}) | |
return h | |
end | |
def run(a, w = 50, w2 = false) | |
c = 2e4.to_i | |
w = 50 | |
h = opt(a, w, nil, c.to_i, w2) | |
end | |
run({'cgnw2' => 1}) | |
run({'cgnw2' => 1, 'cm' => 1, 'cg' => 1, 'c' => 1}) | |
run({'cm' => 1, 'cg' => 1, 'c' => 1}) |
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