本文整理汇总了C++中edge_type类的典型用法代码示例。如果您正苦于以下问题：C++ edge_type类的具体用法？C++ edge_type怎么用？C++ edge_type使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了edge_type类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: gather
/** The gather function computes XtX and Xy */
gather_type gather(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
if(edge.data().role == edge_data::TRAIN) {
const vertex_type other_vertex = get_other_vertex(edge, vertex);
return gather_type(other_vertex.data().factor, edge.data().obs);
} else return gather_type();
} // end of gather function示例2: scatter
void scatter(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const
{
const vertex_type other = edge.target();
distance_type newd = vertex.data().dist + edge.data().dist;
const min_distance_type msg(newd);
context.signal(other, msg);
}示例3: save_edge
std::string save_edge(const edge_type& edge) const {
std::stringstream strm;
const double prediction =
edge.source().data().factor.dot(edge.target().data().factor);
strm << edge.source().id() << '\t'
<< edge.target().id() << '\t'
<< prediction << '\n';
return strm.str();
}示例4: var
std::string var(const edge_type& v) const {
assert(v.size() == r);
std::stringstream s("V");
typename edge_type::const_iterator i = v.begin();
s << *(i++) + 1;
for (; i != v.end(); ++i)
s << "S" << *i + 1;
return s.str();
}示例5: scatter
// Scatter to scatter_edges edges with the new message value.
void scatter(icontext_type& context, const vertex_type& vertex, edge_type& edge) const {
bool isEdgeSource = (vertex.id() == edge.source().id());
bool hasSameData = isEdgeSource ? (vertex.data() == edge.target().data()) : (vertex.data() == edge.source().data()) ;
if (!hasSameData) {
min_combiner combiner;
combiner.value = message_value;
context.signal(isEdgeSource ? edge.target() : edge.source(), combiner);
}
}示例6: gather
gather_type gather(icontext_type& context, const vertex_type& vertex, edge_type& edge) const
{
cout << "gather(), edge=" << edge.source().id() << "->" << edge.target().id() << ", called from vid=" << vertex.id() << endl;
gather_type gathered;
// add id of other vertex of edge and add id->beta to map if message source
if (edge.target().id()==vertex.id())
{
// incoming edge, outgoing message, only if target is non-observed
if (!edge.source().data().is_observed)
{
gathered.message_targets.insert(edge.source().id());
cout << "added " << edge.source().id() << " as message target" << endl;
}
}
else
{
// outgoing edge, incoming message with beta
gathered.message_source_betas[edge.target().id()]=edge.data().beta;
cout << "added " << edge.target().id() << " as message source" << endl;
}
cout << "gathered=" << gathered << endl;
return gathered;
}示例7: scatter
void scatter(icontext_type& context, const vertex_type& vertex, edge_type& edge) const {
EData ed = edge.data();
float weight = ed.weight;
if ( !edge.source().data().actived && ((double)rand() / RAND_MAX) < weight){
// if ( !edge.source().data().actived && 0.5 <= weight){
context.signal(edge.source());
}
}示例8: gather
gather_type gather(icontext_type& context, const vertex_type& vertex, edge_type& edge) const {
if (context.iteration() == 0) {
if (vertex.id() == edge.source().id()) {
return gather_type(edge.target().id());
} else {
return gather_type(edge.source().id());
}
} else {
return gather_type();
}
}示例9: gather
factor_type gather(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
vertex_type other_vertex = get_other_vertex(edge, vertex);
// VIOLATING THE ABSTRACTION!
vertex_data& vdata = graph_type::vertex_type(vertex).data();
// VIOLATING THE ABSTRACTION!
vertex_data& other_vdata = other_vertex.data();
factor_type& doc_topic_count =
is_doc(vertex) ? vdata.factor : other_vdata.factor;
factor_type& word_topic_count =
is_word(vertex) ? vdata.factor : other_vdata.factor;
ASSERT_EQ(doc_topic_count.size(), NTOPICS);
ASSERT_EQ(word_topic_count.size(), NTOPICS);
// run the actual gibbs sampling
factor_type& belief = edge.data().belief;
const uint32_t count = edge.data().count;
// Resample the topics
double sum = 0, old_sum = 0;
for(size_t t = 0; t < NTOPICS; ++t) {
old_sum += belief[t];
doc_topic_count[t] -= belief[t];
word_topic_count[t] -= belief[t];
GLOBAL_TOPIC_COUNT[t] -= belief[t];
const double n_dt =
std::max(count_type(doc_topic_count[t]), count_type(0));
ASSERT_GE(n_dt, 0);
const double n_wt =
std::max(count_type(word_topic_count[t]), count_type(0));
ASSERT_GE(n_wt, 0);
const double n_t =
std::max(count_type(GLOBAL_TOPIC_COUNT[t]), count_type(0));
ASSERT_GE(n_t, 0);
belief[t] = (ALPHA + n_dt) * (BETA + n_wt) / (BETA * NWORDS + n_t);
sum += belief[t];
} // End of loop over each token
ASSERT_GT(sum, 0);
if(old_sum == 0) {
size_t asg = graphlab::random::multinomial(belief);
for(size_t i = 0; i < NTOPICS; ++i) belief[i] = 0;
belief[asg] = count;
return belief;
}
for(size_t t = 0; t < NTOPICS; ++t) {
belief[t] = count * (belief[t]/sum);
doc_topic_count[t] += belief[t];
word_topic_count[t] += belief[t];
GLOBAL_TOPIC_COUNT[t] += belief[t];
}
return belief;
} // end of gather示例10: scatter
void scatter(icontext_type& context, const vertex_type& vertex, edge_type& edge) const {
if (context.iteration() == 0) {
pair<size_t, size_t> p = count_triangles(edge.source(), edge.target());
if (p.first > 0) {
context.signal(edge.source(), p.first);
}
if (p.second > 0) {
context.signal(edge.target(), p.second);
}
} else {
//
}
}示例11: gather
double gather(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const
{
edge_data e = edge.parse<edge_data>();
int topic = rand()%env_inst.NTOPICS; //sample topic from Mean(1/K)
e.assignment=topic;
edge.update<edge_data>(e);
vertex_data vs=edge.source().parse<vertex_data>();
vertex_data vt=edge.target().parse<vertex_data>();
vs.n[topic]++;
vt.n[topic]++;
env_inst.nwsum[topic]++;
env_inst.ndsum[k2id(vs.id)]++;
return 0;
}示例12: scatter
/**
* \brief The scatter function just signal adjacent pages
*/
void scatter(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
const vertex_type other = get_other_vertex(edge, vertex);
distance_type newd = vertex.data().dist + edge.data().dist;
if (other.data().dist > newd) {
const min_distance_type msg(newd);
context.signal(other, msg);
}
} // end of scatter示例13: gather
/* Gather the weighted rank of the adjacent page */
double gather(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
if (edge.data().role == edge_data::PREDICT)
return 0;
bool brows = vertex.id() < (uint)info.get_start_node(false);
if (info.is_square())
brows = !mi.A_transpose;
if (mi.A_offset && mi.x_offset >= 0){
double val = edge.data().obs * (brows ? edge.target().data().pvec[mi.x_offset] :
edge.source().data().pvec[mi.x_offset]);
//printf("gather edge on vertex %d val %lg obs %lg\n", vertex.id(), val, edge.data().obs);
return val;
}
//printf("edge on vertex %d val %lg\n", vertex.id(), 0.0);
return 0;
}示例14: scatter
void scatter(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
const vertex_type other = edge.target();
pagerank_type value = vertex.data().pagerank / vertex.num_out_edges();
assert(other.id() != vertex.id());
const sum_pagerank_type msg(value);
context.signal(other, msg);
}示例15: scatter
/**
* \brief The scatter function just signal adjacent pages
*/
void scatter(icontext_type& context, const vertex_type& vertex,
edge_type& edge) const {
const vertex_type other = edge.target();
/*if (USE_DELTA_CACHE) {
gather_data_type delta;
delta.dist = lastchange;
context.post_delta(other, delta);
}*/
context.signal(other);
}