Exemple #1
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    def run(self):
        init = noop()
        data = init.apply(self.data)
        value = self.qfn.run(init.apply(data))

        startTime = datetime.datetime.now()

        for g, p in zip(self.generator, self.params):

            argvalue = sys.maxsize
            argmax = noop()

            for instance in p:
                gen = g(data, list([instance]))
                xform = gen.bbrun()
                newValue = self.qfn.run(xform.apply(data))

                if newValue < argvalue:
                    value = newValue
                    argmax = xform

            init = argmax + init

        self.search_stats['runtime'] = (datetime.datetime.now() -
                                        startTime).total_seconds()

        return (value, init, data)
Exemple #2
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    def run(self):
        init = noop()
        data = init.apply(self.data)
        value = self.qfn.run(init.apply(data))

        startTime = datetime.datetime.now()

        for element in itertools.product(*self.params):
            argmax = noop()

            for i in range(0, len(self.params)):
                g = self.generator[i](data, list([element[i]]))

                t = g.bbrun()
                prior = self.qfn.run(argmax.apply(data))
                argmax = t + argmax
                post = self.qfn.run(argmax.apply(data))

                if post > prior:
                    argmax = t

            newValue = self.qfn.run(argmax.apply(data))

            if newValue < value:
                value = newValue
                init = argmax

        self.search_stats['runtime'] = (datetime.datetime.now() -
                                        startTime).total_seconds()

        return (value, init, data)
Exemple #3
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    def _getAttribute(self, attr):
        for sim, thresh in self.generatorParams:

            xform = noop()

            for tup in self._attrPairIterator(attr):
                if sim(tup[0], tup[0]) < thresh:
                    xform = satransform(attr, tup[0], tup[1], EQ) + xform

            yield xform
Exemple #4
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    def run(self):
        init = noop()
        data = init.apply(self.data)

        startTime = datetime.datetime.now()

        for i in range(self.maxDepth):
            value, xform = self._runIter(data, init)
            data = xform.apply(data)
            init = xform + init

            if value == 0:
                break

        self.search_stats['runtime'] = (datetime.datetime.now() -
                                        startTime).total_seconds()

        return (value, xform, data)
Exemple #5
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    def _runIter(self, data, init=noop()):
        xform = init
        value = self.qfn.run(xform.apply(data))

        for g, p in zip(self.generator, self.params):
            gen = g(data, p)

            if value == 0:
                break

            for score, newXform in gen.score(self.qfn, xform):

                if value == 0:
                    break

                if score < value:
                    xform = newXform
                    value = score

        return (value, xform)
Exemple #6
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    def _getAttribute(self, attr):

        for sszie, hsize in self.generatorParams:
            
            dup = {}
            hf = self.genFamily(1)
            xform = noop()

            for s in self._attrVals(attr):
                v = self.minHash(self.shingle(s,2), hf)

                if v not in dup:
                     dup[v] = []
                
                dup[v].append(s)

            for v in dup:
                if len( dup[v]) > 1:
                    for s in  dup[v]:
                        xform = satransform(attr, s,  dup[v][0], EQ) + xform

            yield xform
    def bbrun(self):
        xform = noop()
        for newXform in self.get():
            xform = newXform + xform

        return xform