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| author | Loïc Guégan <loic.guegan@mailbox.org> | 2025-09-19 13:19:02 +0200 |
|---|---|---|
| committer | Loïc Guégan <loic.guegan@mailbox.org> | 2025-09-19 13:19:02 +0200 |
| commit | 4f1b2ea492d3e19c81ab98f050618d437b6e9ec5 (patch) | |
| tree | 118edc54e48150e7d9dfe78ef375a694fa4bc85f /analysis/learning.R | |
| parent | 284cee3f032bed1243f0d1256d394e9458132075 (diff) | |
Clean repo and debug setup.sh
Diffstat (limited to 'analysis/learning.R')
| -rw-r--r-- | analysis/learning.R | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/analysis/learning.R b/analysis/learning.R deleted file mode 100644 index da444d8..0000000 --- a/analysis/learning.R +++ /dev/null @@ -1,214 +0,0 @@ -library("tidyverse") -options(dplyr.summarise.inform = FALSE) -library("class") -library("rpart") -library("rpart.plot") -library("viridis") -library("MLmetrics") - -## Simulation Parameters: -## simkey {baseline,extended,hint,hintandextended} -## wireless {lora,nbiot} -## wakeupfor {60s,180s} -## seed [1,200] -## node on[0,12] -## isSender {0,1} -## dataSize {1MB} - -## Metrics: -## energy [0,+inf) -## nDataRcv [0,+inf) - -nseed=200 -nwakeupfor=2 -nwireless=2 -nsimkey=4 -nsimulations=nseed*nwakeupfor*nwireless*nsimkey # Must be 3200 - -## Load data -data=suppressMessages(read_csv("../CCGRID2022.csv"))%>%distinct() # Note that in the data experiment wireless=="lora",seed==1,wakeupfor==60,simkey=="baseline" is present 2 times in the CSV file -data_seed=data%>%group_by(simkey,wireless,wakeupfor,seed)%>%summarize(energy=sum(energy),coverage=sum(nDataRcv))%>% - mutate(efficiency=energy/coverage)%>% - ungroup() - - -F1_Score2=function(truth, pred){ - result=sapply(c("baseline","extended","hint","hintandextended"),function(c){ - cur_truth=truth[truth==c] - cur_pred=pred[truth==c] - col=paste0("f1_",c) - score=F1_Score(cur_truth,cur_pred) - if(is.nan(score)){score=0} - list(tibble(!!col:=score)) - }) - do.call("cbind",result) -} - -build_models=function(ignore_hint=TRUE){ - ## Prepare data for traning - set.seed(1) # Reproducibility - wireless_map=c("lora"=1,"nbiot"=2) - data_ml=data_seed%>%select(-efficiency,-seed)%>%mutate(wireless=wireless_map[data_seed$wireless]) - if(ignore_hint){ - data_ml=data_ml%>%filter(simkey!="hint") - } - train_set=data_ml%>%sample_frac(0.8) # 80% of the data - test_set=data_ml%>%suppressMessages(anti_join(train_set)) # 20% of the data - - ## KNN predict function - knn_fn=function(inputs){ - as.vector(knn(train=train_set%>%select(-simkey),test=inputs%>%select(-simkey),cl=train_set$simkey,k=10)) - } - - ## Decision tree - tree=rpart( - simkey ~ wireless + wakeupfor + energy + coverage, - data=train_set, - method="class", - minsplit=60, - minbucket=1) - ## Tree predict function - tree_fn=function(inputs){ - as.vector(predict(tree,newdata=inputs%>%select(-simkey),type="class")) - } - - ## Build models - models=list(predict_knn=knn_fn,predict_tree=tree_fn) - - ## Computer performances - perfs=sapply(seq(1,20),function(i){ - ## Prepare data for traning - set.seed(1) # Reproducibility - wireless_map=c("lora"=1,"nbiot"=2) - data_ml=data_seed%>%select(-efficiency,-seed)%>%mutate(wireless=wireless_map[data_seed$wireless]) - if(ignore_hint){ - data_ml=data_ml%>%filter(simkey!="hint") - } - train_set=data_ml%>%sample_frac(0.8) # 80% of the data - test_set=data_ml%>%suppressMessages(anti_join(train_set)) # 20% of the data - - ## KNN - knn_predictions=as.vector(knn(train=train_set%>%select(-simkey),test=test_set%>%select(-simkey),cl=train_set$simkey,k=10)) - ## Decision tree - tree=rpart( - simkey ~ wireless + wakeupfor + energy + coverage, - data=train_set, - method="class", - minsplit=60, - minbucket=1) - tree_predictions=as.vector(predict(tree,newdata=test_set%>%select(-simkey),type="class")) - - ## Prefs - f1_knn=F1_Score2(test_set$simkey,knn_predictions) - f1_tree=F1_Score2(test_set$simkey,tree_predictions) - accuracy_knn=sum(test_set$simkey==knn_predictions)/length(test_set$simkey) - accuracy_tree=sum(test_set$simkey==tree_predictions)/length(test_set$simkey) - list(cbind(tibble(model=c("knn","tree")),rbind(f1_knn,f1_tree),tibble(accuracy=c(accuracy_knn,accuracy_tree)))) - }) - perfs=do.call("rbind",perfs)%>%mutate_if(is.numeric, ~round(.,digits=2)) - perfs=perfs%>%group_by(model)%>%summarize( - f1_baseline=mean(f1_baseline), - f1_hint=mean(f1_hint), - f1_extended=mean(f1_extended), - f1_hintandextended=mean(f1_hintandextended), - accuracy=mean(accuracy)) - write.csv(perfs,paste0("figures/f1_scores_offline_ignoreHINT",ignore_hint,".csv"),quote=FALSE,row.names=FALSE) - - ## Return models - models -} - -generate_inputs=function(ignore_hint=FALSE) { - ## Prepare data for traning - set.seed(1) # Reproducibility - wireless_map=c("lora"=1,"nbiot"=2) - data_ml=data_seed%>%select(-efficiency,-seed)%>%mutate(wireless=wireless_map[data_seed$wireless]) - if(ignore_hint){ - data_ml=data_ml%>%filter(simkey!="hint") - } - train_set=data_ml%>%sample_frac(0.8) # 80% of the data - test_set=data_ml%>%anti_join(train_set) # 20% of the data - - ## KNN training - knn_predictions=knn(train=train_set%>%select(-simkey),test=test_set%>%select(-simkey),cl=train_set$simkey,k=10) - ## KNN analysis - knn_cont_table=table(knn_predictions,test_set$simkey) - knn_accuracy=round((sum(diag(knn_cont_table)/sum(rowSums(knn_cont_table))))*100) - knn_prop_table=round(prop.table(knn_cont_table),digits=2) - - ## Decision tree - tree=rpart( - simkey ~ wireless + wakeupfor + energy + coverage, - data=train_set, - method="class", - minsplit=60, - minbucket=1) - tree_predictions=predict(tree,newdata=test_set%>%select(-simkey),type="class") - tree_cont_table=table(tree_predictions,test_set$simkey) - tree_accuracy=(sum(diag(tree_cont_table)/sum(rowSums(tree_cont_table)))) - tree_prop_table=round(prop.table(tree_cont_table),digits=2) - - ## Elbow plot - elbow_data=lapply(seq(1,10),function(kvalue){ - knn_predictions=knn(train=train_set%>%select(-simkey),test=test_set%>%select(-simkey),cl=train_set$simkey,k=kvalue) - ## KNN analysis - knn_cont_table=table(knn_predictions,test_set$simkey) - knn_accuracy=(sum(diag(knn_cont_table)/sum(rowSums(knn_cont_table)))) - knn_prop_table=round(prop.table(knn_cont_table),digits=2) - tibble(k=kvalue,accuracy=knn_accuracy) - }) - elbow_data=do.call("rbind",elbow_data) - ggplot(data=elbow_data,aes(k,accuracy))+geom_point()+geom_line()+ggtitle(paste("K-elbow for with NoHint to",as.character(ignore_hint)))+ylim(c(0,1)) - ggsave(paste0("figures/knn_elbow_NoHintIs",as.character(ignore_hint),".pdf")) - - ## Prints - print(paste0("Accuracy: KNN=",knn_accuracy,"% CART=",tree_accuracy,"%")) - pdf(paste0("figures/tree_",as.character(ignore_hint),".pdf")) - tree_plot=rpart.plot(tree,box.palette=as.list(viridis::viridis(4,begin=0.48)),tweak=1.111) - silent_call=dev.off() - ## Notes: KNN accuracy jump to 76% and CART to 80% accuracy without the hint policy - - ## Generate simulation inputs - inputs=tibble( - wakeupfor = c(60,180,60,180), - wireless = c("lora", "lora", "nbiot", "nbiot")) - constraints=apply(inputs,1,function(row){ - wi=row["wireless"] - wa=as.numeric(row["wakeupfor"]) - ## First extract energy/coverage boundaries - min_energy=min((data_seed%>%filter(wireless==wi,wakeupfor==wa))$energy) - max_energy=max((data_seed%>%filter(wireless==wi,wakeupfor==wa))$energy) - min_coverage=min((data_seed%>%filter(wireless==wi,wakeupfor==wa))$coverage) - max_coverage=max((data_seed%>%filter(wireless==wi,wakeupfor==wa))$coverage) - ## Generate random points (10 per scenarios) - n=100 - current_inputs=tibble( - wireless=rep(wi,n), - wakeupfor=rep(wa,n), - energy_constraint=runif(n,min_energy,max_energy), - coverage_constraint=round(runif(n,min_coverage,max_coverage))) - predictions_knn=knn(train=train_set%>%select(-simkey),test=current_inputs%>% - rename(energy=energy_constraint,coverage=coverage_constraint)%>% - mutate(wireless=wireless_map[wireless]),cl=train_set$simkey,k=10) - predictions_tree=predict(tree,newdata=current_inputs%>% - rename(energy=energy_constraint,coverage=coverage_constraint)%>% - mutate(wireless=wireless_map[wireless]),type="class") - knn_final=tibble(cbind(current_inputs,tibble(simkey=predictions_knn,model="knn"))) - tree_final=tibble(cbind(current_inputs,tibble(simkey=predictions_tree,model="tree"))) - rbind(knn_final,tree_final) - }) - inputs=do.call("rbind",constraints)%>%distinct() - ## Dimension Energy/Coverage - ggplot(data_seed%>%mutate(wakeupfor=as.character(wakeupfor)), - aes(coverage,energy,color=simkey))+geom_point()+ - geom_point(data=inputs%>%mutate(wakeupfor=as.character(wakeupfor)),aes(coverage_constraint,energy_constraint),size=3,pch=5)+ - ggtitle("Dimension Energy/Coverage")+xlab("Coverage")+ylab("Sum of nodes energy consumption (J)")+ - facet_wrap(~wakeupfor+wireless,scale="free") - ggsave(paste0("figures/random_inputs_NoHintIs",as.character(ignore_hint),".pdf"),width=15) - write.csv(inputs,paste0("../inputs_NoHintIs",as.character(ignore_hint),".csv"),row.names=FALSE, quote=FALSE) - -} - -## Generate inputs -generate_inputs(FALSE) -generate_inputs(TRUE) |
