Tutorial not working aclImdb_lstm_classification.R

[KillariDev]

Description

I am trying to run example https://github.com/apache/incubator-mxnet/tree/master/example/rnn/bucket_R , but seems like "mx.io.bucket.iter" is no longer available as I am getting error:

Error in mx.io.bucket.iter(buckets = corpus_bucketed_train$buckets, batch.size = batch.size,  : 
  could not find function "mx.io.bucket.iter"

Is there a function that can replace this functions functionality? The tutorial should be updated to incorporate that.

Environment info (Required)

Package used (Python/R/Scala/Julia):
R

Session info:

R version 3.4.3 (2017-11-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=English_Finland.1252  LC_CTYPE=English_Finland.1252    LC_MONETARY=English_Finland.1252 LC_NUMERIC=C                    
[5] LC_TIME=English_Finland.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] quanteda_1.0.0 stringi_1.1.7  stringr_1.3.1  dplyr_0.7.5    readr_1.1.1    bindrcpp_0.2.2 mxnet_0.10.1   mlbench_2.1-1 

loaded via a namespace (and not attached):
 [1] network_1.13.0      tidyselect_0.2.4    Rook_1.1-1          purrr_0.2.4         lattice_0.20-35     colorspace_1.3-2    htmltools_0.3.6    
 [8] viridisLite_0.3.0   yaml_2.1.14         XML_3.98-1.9        rlang_0.2.0         pillar_1.2.3        glue_1.2.0          RColorBrewer_1.1-2 
[15] bindr_0.1.1         plyr_1.8.4          munsell_0.4.3       gtable_0.2.0        visNetwork_2.0.3    htmlwidgets_1.2     codetools_0.2-15   
[22] DiagrammeR_0.9.0    Rcpp_0.12.17        spacyr_0.9.3        scales_0.5.0        RcppParallel_4.3.20 jsonlite_1.5        rgexf_0.15.3       
[29] fastmatch_1.1-0     gridExtra_2.2.1     brew_1.0-6          stopwords_0.9.0     ggplot2_2.2.1       hms_0.3             digest_0.6.15      
[36] ggrepel_0.7.0       grid_3.4.3          influenceR_0.1.0    tools_3.4.3         magrittr_1.5        lazyeval_0.2.0      tibble_1.4.2       
[43] pkgconfig_2.0.1     Matrix_1.2-12       data.table_1.10.4-3 lubridate_1.6.0     assertthat_0.2.0    rstudioapi_0.7      viridis_0.5.1      
[50] R6_2.2.2            igraph_1.2.1        compiler_3.4.3 

[anirudhacharya]

This example was broken in this PR - #9022

@jeremiedb can you please check.

@sandeep-krishnamurthy please label - "R", "Examples"

[jeremiedb]

@kimiylilammi, could you try using a more up to date version of Mxnet? V 0.10.1 is now somwhat dated. You can install 1.2 with: install.packages("https://s3.ca-central-1.amazonaws.com/jeremiedb/share/mxnet/CPU/mxnet.zip", repos = NULL), pre-built GPU version also available.

[anirudhacharya]

@jeremiedb the example fails with the latest master code too, at this line - https://github.com/apache/incubator-mxnet/blob/master/example/rnn/bucket_R/aclImdb_lstm_classification.R#L54 as initializer is not defined.

It was changed here - https://github.com/apache/incubator-mxnet/pull/9022/files#diff-4b1642520fb1d852c2a007d2ae3a68e3L29

[anirudhacharya]

Fix - #12263

[anirudhacharya]

@sandeep-krishnamurthy fix merged, please close this issue.

@kimiylilammi try the tutorial from the latest master branch.