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ml_feature.clj
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ml_feature.clj
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(ns zero-one.geni.ml-feature
(:require
[zero-one.geni.interop :as interop]
[zero-one.geni.default-stop-words :refer [default-stop-words]])
(:import
(org.apache.spark.ml.feature Binarizer
Bucketizer
BucketedRandomProjectionLSH
ChiSqSelector
CountVectorizer
DCT
ElementwiseProduct
FeatureHasher
HashingTF
IDF
Imputer
IndexToString
Interaction
MaxAbsScaler
MinHashLSH
MinMaxScaler
NGram
Normalizer
OneHotEncoderEstimator
PCA
PolynomialExpansion
QuantileDiscretizer
RegexTokenizer
SQLTransformer
StandardScaler
StopWordsRemover
StringIndexer
Tokenizer
VectorAssembler
VectorIndexer
VectorSizeHint
Word2Vec)))
(defn stop-words-remover [params]
(let [defaults {:output-col "stopWords_9a3d7440ac5c__output",
:locale "en_US",
:stop-words default-stop-words
:case-sensitive false}
props (merge defaults params)]
(interop/instantiate StopWordsRemover props)))
(defn chi-sq-selector [params]
(let [defaults {:fdr 0.05,
:fpr 0.05,
:label-col "label",
:percentile 0.1,
:selector-type "numTopFeatures",
:num-top-features 50,
:fwe 0.05,
:features-col "features"}
props (merge defaults params)]
(interop/instantiate ChiSqSelector props)))
(defn vector-assembler [params]
(let [defaults {:handle-invalid "error"}
props (merge defaults params)]
(interop/instantiate VectorAssembler props)))
(defn feature-hasher [params]
(let [defaults {:num-features 262144}
props (merge defaults params)]
(interop/instantiate FeatureHasher props)))
(defn n-gram [params]
(let [defaults {:n 2}
props (merge defaults params)]
(interop/instantiate NGram props)))
(defn binariser [params]
(let [defaults {:threshold 0.5}
props (merge defaults params)]
(interop/instantiate Binarizer props)))
(def binarizer binariser)
(defn pca [params]
(interop/instantiate PCA params))
(defn polynomial-expansion [params]
(let [defaults {:degree 2}
props (merge defaults params)]
(interop/instantiate PolynomialExpansion props)))
(defn discrete-cosine-transform [params]
(let [defaults {:inverse false}
props (merge defaults params)]
(interop/instantiate DCT props)))
(def dct discrete-cosine-transform)
(defn string-indexer [params]
(let [defaults {:handle-invalid "error"
:string-order-type "frequencyDesc"}
props (merge defaults params)]
(interop/instantiate StringIndexer props)))
(defn index-to-string [params]
(interop/instantiate IndexToString params))
(defn one-hot-encoder [params]
(let [defaults {:drop-last true :handle-invalid "error"}
props (merge defaults params)]
(interop/instantiate OneHotEncoderEstimator props)))
(def one-hot-encoder-estimator one-hot-encoder)
(defn vector-indexer [params]
(let [defaults {:max-categories 20 :handle-invalid "error"}
props (merge defaults params)]
(interop/instantiate VectorIndexer props)))
(defn interaction [params]
(interop/instantiate Interaction params))
(defn normaliser [params]
(let [defaults {:p 2.0}
props (merge defaults params)]
(interop/instantiate Normalizer props)))
(def normalizer normaliser)
(defn standard-scaler [params]
(let [defaults {:with-std true :with-mean false}
props (merge defaults params)]
(interop/instantiate StandardScaler props)))
(defn min-max-scaler [params]
(let [defaults {:min 0.0 :max 1.0}
props (merge defaults params)]
(interop/instantiate MinMaxScaler props)))
(defn max-abs-scaler [params]
(interop/instantiate MaxAbsScaler params))
(defn bucketiser [params]
(let [defaults {:handle-invalid "error"}
props (merge defaults params)]
(interop/instantiate Bucketizer props)))
(def bucketizer bucketiser)
(defn elementwise-product [params]
(let [params (if (:scaling-vec params)
(update params :scaling-vec interop/->scala-coll)
params)]
(interop/instantiate ElementwiseProduct params)))
(defn sql-transformer [params]
(interop/instantiate SQLTransformer params))
(defn vector-size-hint [params]
(let [defaults {:handle-invalid "error"}
props (merge defaults params)]
(interop/instantiate VectorSizeHint props)))
(defn quantile-discretiser [params]
(let [defaults {:handle-invalid "error"
:num-buckets 2
:relative-error 0.001}
props (merge defaults params)]
(interop/instantiate QuantileDiscretizer props)))
(def quantile-discretizer quantile-discretiser)
(defn imputer [params]
(let [defaults {:missing-value ##NaN
:strategy "mean"}
props (merge defaults params)]
(interop/instantiate Imputer props)))
(defn bucketed-random-projection-lsh [params]
(let [defaults {:num-hash-tables 1
:seed 772209414}
props (merge defaults params)]
(interop/instantiate BucketedRandomProjectionLSH props)))
(defn min-hash-lsh [params]
(let [defaults {:num-hash-tables 1
:seed 772209414}
props (merge defaults params)]
(interop/instantiate MinHashLSH props)))
(defn count-vectoriser [params]
(let [defaults {:vocab-size 262144,
:min-df 1.0,
:min-tf 1.0,
:binary false,
:max-df 9.223372036854776E18}
props (merge defaults params)]
(interop/instantiate CountVectorizer props)))
(def count-vectorizer count-vectoriser)
(defn idf [params]
(let [defaults {:min-doc-freq 0}
props (merge defaults params)]
(interop/instantiate IDF props)))
(defn tokeniser [params]
(interop/instantiate Tokenizer params))
(def tokenizer tokeniser)
(defn hashing-tf [params]
(let [defaults {:binary false
:num-features 262144}
props (merge defaults params)]
(interop/instantiate HashingTF props)))
(defn word2vec [params]
(let [defaults {:max-iter 1,
:step-size 0.025,
:window-size 5,
:max-sentence-length 1000,
:num-partitions 1,
:seed -1961189076,
:vector-size 100,
:min-count 5}
props (merge defaults params)]
(interop/instantiate Word2Vec props)))
(defn regex-tokeniser [params]
(let [defaults {:to-lowercase true,
:pattern "\\s+",
:min-token-length 1,
:gaps true}
props (merge defaults params)]
(interop/instantiate RegexTokenizer props)))
(def regex-tokenizer regex-tokeniser)