7. A computerized method comprising: receiving an orthographical vector space comprising a vector representation of an out-of-vocabulary word and orthographic anchors for in-vocabulary words, the orthographic vector space defined by a dictionary; selecting phoneme sub-strings from the dictionary according to a closeness measure between the vector representation of the out-of-vocabulary word and the orthographic anchors for the in-vocabulary words in the orthographic vector space; and generating a pronunciation data for the out-of-vocabulary word from the selected phoneme sub-strings.
7. A computerized method comprising: receiving an orthographical vector space comprising a vector representation of an out-of-vocabulary word and orthographic anchors for in-vocabulary words, the orthographic vector space defined by a dictionary; selecting phoneme sub-strings from the dictionary according to a closeness measure between the vector representation of the out-of-vocabulary word and the orthographic anchors for the in-vocabulary words in the orthographic vector space; and generating a pronunciation data for the out-of-vocabulary word from the selected phoneme sub-strings. 10. The computerized method of claim 7 , wherein selecting phoneme sub-strings comprises: forming an orthographic neighborhood from in-vocabulary words corresponding to orthographic anchors that satisfy the closeness measure; and creating a pronunciation data neighborhood from phoneme strings for the in-vocabulary words in the orthographic neighborhood, the phoneme strings having at least one phoneme sub-string in the dictionary.