问题
I want conduct text mining analysis, but face with any troubles. Using dput(), i load little part of my text.
text<-structure(list(ID_C_REGCODES_CASH_VOUCHER = c(3941L, 3941L, 3941L,
3945L, 3945L, 3945L, 3945L, 3945L, 3945L, 3945L, 3953L, 3953L,
3953L, 3953L, 3953L, 3953L, 3960L, 3960L, 3960L, 3960L, 3960L,
3960L, 3967L, 3967L, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA,
NA, NA, NA, NA, NA, NA, NA, NA, NA, NA, NA), GOODS_NAME = structure(c(19L,
17L, 15L, 18L, 16L, 23L, 21L, 14L, 22L, 20L, 6L, 2L, 10L, 8L,
7L, 13L, 5L, 11L, 7L, 12L, 4L, 3L, 9L, 9L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L,
1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L
), .Label = c("", "* 2108609 SLOB.Mayon.OLIVK.67% 400ml", "* 3014084 D.Dym.Spikachki DEREVEN.MINI 1kg",
"* 3398012 DD Kolb.SERV.OKHOTN in / to v / y0.35", "* 3426789 WH.The corn rav guava / yagn.d / CAT seed 85g",
"197 Onion 1 kg", "2013077 MAKFA Makar.RAKERS 450g", "2030918 MARIA TRADITIONAL Biscuit 180g",
"2049750 MAKFA Makar.SHIGHTS 450g", "3420159 LEBED.Mol.past.3,4-4,5% 900g",
"3491144 LIP.NAP.ICE TEA green yellow 0.5 liter", "6788 MAKFA Makar.perya 450g",
"809 Bananas 1kg", "FetaXa Cheese product 60% 400g (", "Lemons 55+",
"MAKFA Macaroni feathers like. in / with", "Napkins paper color 100pcs PL",
"Package \"Magnet\" white (Plastiktre)", "Pasta Makfa snail flow-pack 450 g.",
"SHEBEKINSKIE Macaroni Butterfly №40", "SOFT Cotton sticks 100 PE (BELL",
"TENDER AGE Cottage cheese 10", "TOBUS steering-wheel 0.5kg flow"
), class = "factor")), .Names = c("ID_C_REGCODES_CASH_VOUCHER",
"GOODS_NAME"), class = "data.frame", row.names = c(NA, -61L))
(NA is accidentally. ) The body of text is names of product from check.
I want to group any similar names.
For example. Here i manually take MAKFA makar(Ukraine name). I found 7 rows with "root or key word MAKFA Makar"
Pasta Makfa snail flow-pack 450 g.
MAKFA Macaroni feathers like. in / with
2013077 MAKFA Makar.RAKERS 450g
2013077 MAKFA Makar.RAKERS 450g
6788 MAKFA Makar.perya 450g
2049750 MAKFA Makar.SHIGHTS 450g
2049750 MAKFA Makar.SHIGHTS 450g
All product position have same root word.
MAKFA Makar can't be something like MFAMKR
As output i want to get
Initially class
1 Pasta Makfa snail flow-pack 450 g. MAKFA Makar.
2 MAKFA Macaroni feathers like. in / with MAKFA Makar.
3 2013077 MAKFA Makar.RAKERS 450g MAKFA Makar.
4 2013077 MAKFA Makar.RAKERS 450g MAKFA Makar.
5 6788 MAKFA Makar.perya 450g MAKFA Makar.
6 2049750 MAKFA Makar.SHIGHTS 450g MAKFA Makar.
7 2049750 MAKFA Makar.SHIGHTS 450g MAKFA Makar.
8 * 3398012 DD Kolb.SERV.OKHOTN in / to v / y0.35 kolb
9 * 3014084 D.Dym.Spikachki DEREVEN.MINI 1kg Spikachki
10 809 Bananas 1kg Bananas
11 Lemons 55+ Lemons
12 Napkins paper color 100pcs PL Napkins paper
13 SOFT Cotton sticks 100 PE (BELL Cotton sticks
14 SHEBEKINSKIE Macaroni Butterfly №40 SHEBEKINSKIE Macaroni
15 * 3426789 WH.The corn rav guava / yagn.d / Cat SEED 85g CAT seed
16 FetaXa Cheese product 60% 400g ( Cheese
17 3491144 LIP.NAP.ICE TEA green yellow 0.5 liter TEA
18 2030918 MARIA TRADITIONAL Biscuit 180g Biscuit
19 197 Onion 1 kg Onion
20 TOBUSsteering-wheel 0.5kg flow steering-wheel
21 Package "Magnet" white (Plastiktre) Package (Plastiktre)
22 * 2108609 SLOB.Mayon.OLIVK.67% 400ml Mayon
23 TENDER AGE Cottage cheese 10 Cottage cheese
How can i classify the product by root words?(rather, the presence of an identically pattern in words Makar.Makfa, cheese)
回答1:
I think you can get where you want by cleansing and then clustering your texts - here's a starter:
text <- text[1:24,]
library(quanteda)
library(tidyverse)
hc <- text %>%
pull(GOODS_NAME) %>%
as.character %>%
quanteda::tokens(
remove_numbers = T,
remove_punct = T,
remove_symbols = T,
remove_separators = T
) %>%
quanteda::tokens_tolower() %>%
quanteda::tokens_remove(valuetype="regex", pattern = c("^\\d.*")) %>%
quanteda::dfm() %>%
textstat_simil(method = "jaccard") %>%
magrittr::multiply_by(-1) %>%
`attr<-`("Labels", text$GOODS_NAME) %>%
hclust(method = "average")
pdf(tf<-tempfile(fileext = ".pdf"), width = 20, height = 10)
plot(hc)
dev.off()
shell.exec(tf)
clusters <- cutree(hc, h = -0.1)
split(text, clusters)
回答2:
Here is an approach having a vector of words to search in:
patt <- c("MAKFA Makar.", "kolb","Spikachki", "Bananas", "Lemons",
"Napkins paper", "Cotton sticks","SHEBEKINSKIE Macaroni","CAT seed","Cheese",
"TEA", "Biscuit", "Onion", "steering-wheel", "Package (Plastiktre)",
"Mayon", "Cottage", "cheese")
lst <-lapply(patt, function(x) text[grep(x,text$GOODS_NAME), ])
do.call(rbind.data.frame, lst)
ID_C_REGCODES_CASH_VOUCHER GOODS_NAME
15 3953 2013077 MAKFA Makar.RAKERS 450g
19 3960 2013077 MAKFA Makar.RAKERS 450g
20 3960 6788 MAKFA Makar.perya 450g
23 3967 2049750 MAKFA Makar.SHIGHTS 450g
24 3967 2049750 MAKFA Makar.SHIGHTS 450g
22 3960 * 3014084 D.Dym.Spikachki DEREVEN.MINI 1kg
16 3953 809 Bananas 1kg
3 3941 Lemons 55+
2 3941 Napkins paper color 100pcs PL
7 3945 SOFT Cotton sticks 100 PE (BELL
10 3945 SHEBEKINSKIE Macaroni Butterfly №40
17 3960 * 3426789 WH.The corn rav guava / yagn.d / CAT seed 85g
8 3945 FetaXa Cheese product 60% 400g (
18 3960 3491144 LIP.NAP.ICE TEA green yellow 0.5 liter
14 3953 2030918 MARIA TRADITIONAL Biscuit 180g
11 3953 197 Onion 1 kg
6 3945 TOBUS steering-wheel 0.5kg flow
12 3953 * 2108609 SLOB.Mayon.OLIVK.67% 400ml
9 3945 TENDER AGE Cottage cheese 10
91 3945 TENDER AGE Cottage cheese 10
来源：https://stackoverflow.com/questions/52346232/classifying-identically-pattern-in-words-using-r