You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
264 lines
8.0 KiB
Clojure
264 lines
8.0 KiB
Clojure
(ns examples.tpt
|
|
(:require [clojure.string :as string]
|
|
[clojure.java.io :as io]
|
|
[taoensso.tufte :as tufte :refer (defnp p profiled profile)]
|
|
[com.owoga.trie :as trie]
|
|
[com.owoga.tightly-packed-trie :as tpt]
|
|
[com.owoga.trie.math :as math]
|
|
[com.owoga.tightly-packed-trie.encoding :as encoding]
|
|
[com.owoga.prhyme.util :as util]
|
|
[com.owoga.prhyme.data.dictionary :as dict]
|
|
[clojure.zip :as zip]
|
|
[cljol.dig9 :as d]))
|
|
|
|
(tufte/add-basic-println-handler! {})
|
|
|
|
(defn dark-corpus-file-seq [start end]
|
|
(let [documents (->> "dark-corpus"
|
|
io/file
|
|
file-seq
|
|
(remove #(.isDirectory %))
|
|
(drop start)
|
|
(take end))]
|
|
documents))
|
|
|
|
(defn remove-sentences-with-words-not-in-dictionary
|
|
"This gets rid of a lot of good words. All contractions for example... I'll, They'll...
|
|
possessives like morning's...
|
|
|
|
Might not end up using it."
|
|
[dictionary]
|
|
(let [dictionary (into #{} dictionary)]
|
|
(fn [sentences]
|
|
(->> sentences
|
|
(map #(string/split % #" "))
|
|
(remove #(some (complement dictionary) %))
|
|
(remove #(some string/blank? %))
|
|
(map #(string/join " " %))))))
|
|
|
|
(def re-word
|
|
"Regex for tokenizing a string into words
|
|
(including contractions and hyphenations),
|
|
commas, periods, and newlines."
|
|
#"(?s).*?([a-zA-Z\d]+(?:['\-]?[a-zA-Z]+)?|,|\.|\n)")
|
|
|
|
(defn pad-tokens
|
|
"Pads the beginning with n - 1 <s> tokens and
|
|
the end with 1 </s> token."
|
|
[tokens n]
|
|
(concat (repeat (max 1 (dec n)) "<s>") tokens ["</s>"]))
|
|
|
|
(defn tokenize-line
|
|
[line]
|
|
(->> line
|
|
(string/trim)
|
|
(re-seq re-word)
|
|
(map second)
|
|
(map string/lower-case)))
|
|
|
|
(defn process-files-for-trie
|
|
"Expects an entire song, lines seperated by \n."
|
|
[files]
|
|
(->> files
|
|
(map slurp)
|
|
(filter dict/english?)
|
|
(map util/clean-text)
|
|
(map #(string/split % #"\n+"))
|
|
(map (remove-sentences-with-words-not-in-dictionary dict/popular))
|
|
(remove empty?)
|
|
(remove #(some empty? %))
|
|
(map (fn [lines]
|
|
(map tokenize-line lines)))
|
|
(map (fn [lines]
|
|
(map #(pad-tokens % 1) lines)))
|
|
(map (fn [lines]
|
|
(map #(partition 2 1 %) lines)))))
|
|
|
|
(defn text->ngrams
|
|
"Takes text from a file, including newlines.
|
|
Pads lines with <s> and </s> for start/end of line.
|
|
Pads beginning with n - 1 <s>s"
|
|
[text n]
|
|
(let [words-not-in-dict-filter (remove-sentences-with-words-not-in-dictionary dict/popular)]
|
|
(->> text
|
|
util/clean-text
|
|
(#(string/split % #"\n+"))
|
|
(remove empty?)
|
|
(map tokenize-line)
|
|
(map #(pad-tokens % n))
|
|
(map #(partition n 1 %))
|
|
(apply concat))))
|
|
|
|
(defn n-to-m-grams
|
|
"Exclusive of m, similar to range."
|
|
[n m text]
|
|
(loop [i n
|
|
r '()]
|
|
(cond
|
|
(= i m)
|
|
(apply concat r)
|
|
:else
|
|
(recur (inc i) (cons (text->ngrams text i) r)))))
|
|
|
|
(defn prep-ngram-for-trie
|
|
"The tpt/trie expects values conjed into an ngram
|
|
to be of format '(k1 k2 k3 value)."
|
|
[ngram]
|
|
(clojure.lang.MapEntry. (vec ngram) ngram))
|
|
|
|
(defn create-trie-from-texts [texts]
|
|
(->> texts
|
|
(map #(n-to-m-grams 1 5 %))
|
|
(apply concat)
|
|
(map prep-ngram-for-trie)
|
|
(reduce
|
|
(fn [[trie i db] [k v]]
|
|
(let [[db i] (reduce
|
|
(fn [[db i] k]
|
|
(let [k' (get db k i)
|
|
i' (if (= i k') (inc i) i)
|
|
db' (-> db
|
|
(assoc k' k)
|
|
(assoc k k'))]
|
|
[db' i']))
|
|
[db i]
|
|
k)]
|
|
(let [k' (map #(get db %) k)]
|
|
(if-let [existing (get trie k')]
|
|
(let [[val count] existing
|
|
trie (assoc trie k' [val (inc count)])]
|
|
[trie i db])
|
|
[(assoc trie k' [i 1]) i db]))))
|
|
[(trie/make-trie) 1 {}])))
|
|
|
|
(defn seq-of-nodes->sorted-by-count
|
|
"Sorted first by the rank of the ngram, lowest ranks first.
|
|
Sorted second by the frequency of the ngram, highest frequencies first.
|
|
This is the order that you'd populate a mapping of keys to IDs."
|
|
[trie]
|
|
(->> trie
|
|
trie/children
|
|
(map #(get % []))
|
|
(sort-by :count)
|
|
reverse))
|
|
|
|
(time
|
|
(let [texts (->> (dark-corpus-file-seq 0 250000)
|
|
(map slurp))
|
|
[trie _ db] (create-trie-from-texts texts)]
|
|
(def trie trie)
|
|
(def trie-database db)))
|
|
|
|
(defn encode-fn [v]
|
|
(let [[value count] (if (seqable? v) v [nil nil])]
|
|
(if (nil? value)
|
|
(encoding/encode 0)
|
|
(byte-array
|
|
(concat (encoding/encode value)
|
|
(encoding/encode count))))))
|
|
|
|
(defn decode-fn [byte-buffer]
|
|
(let [value (encoding/decode byte-buffer)]
|
|
(if (zero? value)
|
|
[nil nil]
|
|
[value (encoding/decode byte-buffer)])))
|
|
|
|
(time
|
|
(def tightly-packed-trie
|
|
(tpt/tightly-packed-trie
|
|
trie
|
|
encode-fn
|
|
decode-fn)))
|
|
|
|
(take 20 tightly-packed-trie)
|
|
|
|
(defn key-get-in-tpt [tpt db ks]
|
|
(let [id (map #(get-in db [(list %) :id]) ks)
|
|
v (get tpt id)]
|
|
{id v}))
|
|
|
|
(defn id-get-in-tpt [tpt db ids]
|
|
(let [ks (apply concat (map #(get db %) ids))
|
|
v (get tpt ids)
|
|
id (get-in db [ks :id])]
|
|
{ks (assoc v :value (get db id))}))
|
|
|
|
(time (count (map #(get % []) (trie/children (trie/lookup tightly-packed-trie [1])))))
|
|
(time (count (trie/children (trie/lookup tightly-packed-trie [1]))))
|
|
|
|
(comment
|
|
(profile {}
|
|
(def example-story
|
|
(loop [generated-text [(get trie-database "<s>")]
|
|
i 0]
|
|
(if (> i 10)
|
|
generated-text
|
|
(let [children (loop [i 4]
|
|
(let [node (p :lookup
|
|
(trie/lookup
|
|
tightly-packed-trie
|
|
(vec (take-last i generated-text))))
|
|
children (p :seq-children (doall (seq (and node (trie/children node)))))]
|
|
(cond
|
|
(nil? node) (recur (dec i))
|
|
(< i 0) (throw (Exception. "Error"))
|
|
children children
|
|
:else (recur (dec i)))))]
|
|
(recur
|
|
(conj
|
|
generated-text
|
|
(->> children
|
|
(map #(get % []))
|
|
(remove nil?)
|
|
(#(p :weighted-selection (math/weighted-selection :count %)))
|
|
:value
|
|
(get trie-database)))
|
|
(inc i)))))))
|
|
|
|
(->> example-story
|
|
(map #(get-in trie-database [% :value]))
|
|
(concat)
|
|
(string/join " ")
|
|
(#(string/replace % #" ([\.,\?])" "$1"))
|
|
((fn [txt]
|
|
(string/replace txt #"(^|\. |\? )([a-z])" (fn [[a b c]]
|
|
(str b (.toUpperCase c)))))))
|
|
|
|
(key-get-in-tpt
|
|
tightly-packed-trie
|
|
trie-database
|
|
'("<s>" "<s>" "the"))
|
|
;; => {(2 2 3) {:value 3263, :count 462}}
|
|
(id-get-in-tpt
|
|
tightly-packed-trie
|
|
trie-database
|
|
'(2 2 3))
|
|
;; => {("<s>" "<s>" "the") {:value ("<s>" "<s>" "the"), :count 462}}
|
|
)
|
|
|
|
(comment
|
|
(let [texts (->> (dark-corpus-file-seq 500 2)
|
|
(map slurp))
|
|
trie (create-trie-from-texts texts)]
|
|
(tpt/as-map (transform-trie->ids trie)))
|
|
|
|
(let [texts (->> (dark-corpus-file-seq 500 2)
|
|
(map slurp))
|
|
trie (create-trie-from-texts texts)
|
|
tightly-packed-trie (tpt/tightly-packed-trie
|
|
(transform-trie->ids trie))]
|
|
(get tightly-packed-trie '(2 2 3)))
|
|
|
|
|
|
(let [texts (->> (dark-corpus-file-seq 500 2)
|
|
(map slurp))
|
|
trie (create-trie-from-texts texts)]
|
|
(tpt/as-map trie))
|
|
|
|
(let [text (slurp (first (dark-corpus-file-seq 500 1)))]
|
|
(->> text
|
|
util/clean-text
|
|
(#(string/split % #"\n+"))))
|
|
|
|
)
|