Worked on case clustering; becomes user navigation again ;)
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# 09_case-clustering.R
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#
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# content: (1) Read data
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# (1.1) Read log event data
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# (1.2) Extract additional infos for clustering
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# (2) Clustering
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#
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# input: results/haum/event_logfiles_2024-01-18_09-58-52.csv
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# output: results/haum/event_logfiles_pre-corona_with-clusters_cases.csv
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#
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# last mod: 2024-02-04
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# setwd("C:/Users/nwickelmaier/Nextcloud/Documents/MDS/2023ss/60100_master_thesis/analysis/code")
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library(bupaverse)
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library(factoextra)
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#--------------- (1) Read data ---------------
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#--------------- (1.1) Read log event data ---------------
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dat0 <- read.table("results/haum/event_logfiles_2024-01-18_09-58-52.csv",
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colClasses = c("character", "character", "POSIXct",
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"POSIXct", "character", "integer",
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"numeric", "character", "character",
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rep("numeric", 3), "character",
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"character", rep("numeric", 11),
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"character", "character"),
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sep = ";", header = TRUE)
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dat0$event <- factor(dat0$event, levels = c("move", "flipCard", "openTopic",
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"openPopup"))
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# Select data pre Corona
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dat <- dat0[as.Date(dat0$date.start) < "2020-03-13", ]
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dat <- dat[dat$path != 106098, ]
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#--------------- (1.2) Extract additional infos for clustering ---------------
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datcase <- aggregate(cbind(duration, distance, scaleSize, rotationDegree) ~
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case, dat, function(x) mean(x, na.rm = TRUE), na.action = NULL)
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datcase$length <- aggregate(item ~ case, dat, length)$item
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datcase$nitems <- aggregate(item ~ case, dat, function(x)
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length(unique(x)), na.action = NULL)$item
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datcase$npaths <- aggregate(path ~ case, dat, function(x)
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length(unique(x)), na.action = NULL)$path
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# datcase$ntopics <- aggregate(topic ~ case, dat,
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# function(x) ifelse(all(is.na(x)), NA, length(unique(na.omit(x)))),
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# na.action = NULL)$topic
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#
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# datcase$vacation <- aggregate(vacation ~ case, dat,
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# function(x) ifelse(all(is.na(x)), 0, 1),
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# na.action = NULL)$vacation
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# datcase$holiday <- aggregate(holiday ~ case, dat,
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# function(x) ifelse(all(is.na(x)), 0, 1),
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# na.action = NULL)$holiday
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# datcase$weekend <- aggregate(weekdays ~ case, dat,
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# function(x) ifelse(any(x %in% c("Saturday", "Sunday")), 1, 0),
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# na.action = NULL)$weekdays
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# datcase$morning <- aggregate(date.start ~ case, dat,
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# function(x) ifelse(lubridate::hour(x[1]) > 13, 0, 1),
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# na.action = NULL)$date.start
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datcase <- na.omit(datcase)
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#--------------- (2) Clustering ---------------
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df <- datcase[, c("duration", "distance", "scaleSize", "rotationDegree",
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"length", "nitems", "npaths")] |>
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scale()
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mat <- dist(df)
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hc <- hclust(mat, method = "ward.D2")
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grp <- cutree(hc, k = 6)
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datcase$grp <- grp
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table(grp)
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# k1 <- kmeans(mat, 4)
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# datcase$kcluster <- k1$cluster
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set.seed(1658)
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ids <- sample(rownames(df), 5000)
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fviz_cluster(list(data = df[ids, ], cluster = grp[ids]),
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palette = c("#78004B", "#000000", "#3CB4DC", "#91C86E",
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"#FF6900", "#434F4F"),
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ellipse.type = "convex",
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show.clust.cent = FALSE, ggtheme = theme_bw())
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aggregate(cbind(duration, distance, scaleSize , rotationDegree, length,
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nitems, npaths) ~ grp, datcase, mean)
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aggregate(cbind(duration, distance, scaleSize , rotationDegree, length,
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nitems, npaths) ~ grp, datcase, max)
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res <- merge(dat, datcase[, c("case", "grp")], by = "case", all.x = TRUE)
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res <- res[order(res$fileId.start, res$date.start, res$timeMs.start), ]
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# Look at clusters
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vioplot::vioplot(duration ~ grp, res)
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vioplot::vioplot(distance ~ grp, res)
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vioplot::vioplot(scaleSize ~ grp, res)
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vioplot::vioplot(rotationDegree ~ grp, res)
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write.table(res,
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file = "results/haum/event_logfiles_pre-corona_with-clusters_cases.csv",
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sep = ";",
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quote = FALSE,
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row.names = FALSE)
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@ -0,0 +1,221 @@
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# 09_case-clustering.R
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#
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# content: (1) Read data
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# (1.1) Read log event data
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# (1.2) Extract additional infos for clustering
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# (2) Clustering
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#
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# input: results/haum/event_logfiles_2024-01-18_09-58-52.csv
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# output: results/haum/event_logfiles_pre-corona_with-clusters_cases.csv
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#
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# last mod: 2024-02-04
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# setwd("C:/Users/nwickelmaier/Nextcloud/Documents/MDS/2023ss/60100_master_thesis/analysis/code")
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library(bupaverse)
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library(factoextra)
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#--------------- (1) Read data ---------------
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#--------------- (1.1) Read log event data ---------------
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dat0 <- read.table("results/haum/event_logfiles_2024-01-18_09-58-52.csv",
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colClasses = c("character", "character", "POSIXct",
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"POSIXct", "character", "integer",
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"numeric", "character", "character",
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rep("numeric", 3), "character",
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"character", rep("numeric", 11),
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"character", "character"),
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sep = ";", header = TRUE)
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dat0$event <- factor(dat0$event, levels = c("move", "flipCard", "openTopic",
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"openPopup"))
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dat0$weekdays <- factor(weekdays(dat0$date.start),
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levels = c("Montag", "Dienstag", "Mittwoch",
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"Donnerstag", "Freitag", "Samstag",
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"Sonntag"),
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labels = c("Monday", "Tuesday", "Wednesday",
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"Thursday", "Friday", "Saturday",
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"Sunday"))
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# Select data pre Corona
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dat <- dat0[as.Date(dat0$date.start) < "2020-03-13", ]
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dat <- dat[dat$path != 106098, ]
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#--------------- (1.2) Extract additional infos for clustering ---------------
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datcase <- aggregate(cbind(duration, distance, scaleSize, rotationDegree) ~
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case, dat, function(x) mean(x, na.rm = TRUE), na.action = NULL)
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datcase$length <- aggregate(item ~ case, dat, length)$item
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datcase$nitems <- aggregate(item ~ case, dat, function(x)
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length(unique(x)), na.action = NULL)$item
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datcase$npaths <- aggregate(path ~ case, dat, function(x)
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length(unique(x)), na.action = NULL)$path
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# datcase$ntopics <- aggregate(topic ~ case, dat,
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# function(x) ifelse(all(is.na(x)), NA, length(unique(na.omit(x)))),
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# na.action = NULL)$topic
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#
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datcase$vacation <- aggregate(vacation ~ case, dat,
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function(x) ifelse(all(is.na(x)), 0, 1),
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na.action = NULL)$vacation
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datcase$holiday <- aggregate(holiday ~ case, dat,
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function(x) ifelse(all(is.na(x)), 0, 1),
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na.action = NULL)$holiday
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datcase$weekend <- aggregate(weekdays ~ case, dat,
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function(x) ifelse(any(x %in% c("Saturday", "Sunday")), 1, 0),
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na.action = NULL)$weekdays
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datcase$morning <- aggregate(date.start ~ case, dat,
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function(x) ifelse(lubridate::hour(x[1]) > 13, 0, 1),
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na.action = NULL)$date.start
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datcase <- na.omit(datcase)
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#--------------- (2) Clustering ---------------
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df <- datcase[, c("duration", "distance", "scaleSize", "rotationDegree",
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"length", "nitems", "npaths")] |>
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scale()
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df <- cbind(df, datcase[, c("vacation", "holiday", "weekend", "morning")])
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mat <- dist(df)
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hc <- hclust(mat, method = "ward.D2")
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hc <- hclust(mat)
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grp <- cutree(hc, k = 3)
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datcase$grp <- grp
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table(grp)
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# k1 <- kmeans(mat, 4)
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# datcase$kcluster <- k1$cluster
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fviz_cluster(list(data = df, cluster = grp),
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palette = c("#78004B", "#000000", "#3CB4DC", "#91C86E",
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"#FF6900", "#434F4F"),
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ellipse.type = "convex",
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show.clust.cent = FALSE, ggtheme = theme_bw())
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aggregate(cbind(duration, distance, scaleSize , rotationDegree, length,
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nitems, npaths) ~ grp, datcase, mean)
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aggregate(cbind(duration, distance, scaleSize , rotationDegree, length,
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nitems, npaths) ~ grp, datcase, median)
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aggregate(cbind(duration, distance, scaleSize , rotationDegree, length,
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nitems, npaths) ~ grp, datcase, max)
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res <- merge(dat, datcase[, c("case", "grp")], by = "case", all.x = TRUE)
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res <- res[order(res$fileId.start, res$date.start, res$timeMs.start), ]
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xtabs( ~ item + grp, res)
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# Look at clusters
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vioplot::vioplot(duration ~ grp, res)
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vioplot::vioplot(distance ~ grp, res)
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vioplot::vioplot(scaleSize ~ grp, res)
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vioplot::vioplot(rotationDegree ~ grp, res)
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write.table(res,
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file = "results/haum/event_logfiles_pre-corona_with-clusters_cases.csv",
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sep = ";",
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quote = FALSE,
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row.names = FALSE)
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# Look at variants
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res$start <- res$date.start
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res$complete <- res$date.stop
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alog <- activitylog(res,
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case_id = "case",
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activity_id = "item",
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resource_id = "path",
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timestamps = c("start", "complete"))
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trace_explorer(alog, n_traces = 30)
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# --> sequences of artworks are just too rare
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tr <- traces(alog)
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trace_length <- sapply(strsplit(tr$trace, ","), length)
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tr[trace_length > 10, ]
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trace_varied <- sapply(strsplit(tr$trace, ","), function(x) length(unique(x)))
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tr[trace_varied > 1, ]
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table(tr[trace_varied > 2, "absolute_frequency"])
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table(tr[trace_varied > 3, "absolute_frequency"])
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longest_case <- datcase[datcase$length == max(datcase$length), "case"]
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alog_often <- activitylog(res[res$case == longest_case, ],
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case_id = "case",
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activity_id = "item",
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resource_id = "path",
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timestamps = c("start", "complete"))
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process_map(alog_often)
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# Power law for frequencies of traces
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tab <- table(tr$absolute_frequency)
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x <- as.numeric(tab)
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y <- as.numeric(names(tab))
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plot(log(y) ~ log(x))
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abline(lm(log(y) ~ log(x)))
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# Look at individual traces as examples
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tr[trace_varied == 5 & trace_length > 50, ]
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# --> every variant exists only once, of course
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datcase[datcase$nitems == 5 & datcase$length > 50,]
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sapply(datcase[, -c(1, 9)], median)
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ex <- datcase[datcase$nitems == 10 & datcase$length == 30,]
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# --> pretty randomly chosen... TODO:
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for (case in ex$case) {
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alog <- activitylog(res[res$case == case, ],
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case_id = "case",
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activity_id = "item",
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resource_id = "path",
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timestamps = c("start", "complete"))
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dfg <- process_map(alog,
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type_nodes = frequency("absolute", color_scale = "Greys"),
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type_edges = frequency("absolute", color_edges = "#FF6900"),
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rankdir = "LR",
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render = FALSE)
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export_map(dfg,
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file_name = paste0("results/processmaps/dfg_example_cases_", case, "_R.pdf"),
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file_type = "pdf",
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title = paste("Case", case))
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}
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## --> not interesting!
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# Just "flipCard"
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res_case <- res[!duplicated(res[, c("case", "path")]), ]
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for (case in ex$case) {
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alog <- activitylog(res_case[res_case$case == case, ],
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case_id = "case",
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activity_id = "item",
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resource_id = "path",
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timestamps = c("start", "complete"))
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dfg <- process_map(alog,
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type_nodes = frequency("absolute", color_scale = "Greys"),
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type_edges = frequency("absolute", color_edges = "#FF6900"),
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rankdir = "LR",
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render = FALSE)
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export_map(dfg,
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file_name = paste0("results/processmaps/dfg_example_cases_", case, "_fc_R.pdf"),
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file_type = "pdf",
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title = paste("Single case", case))
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}
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