Hi
Mathieu Lecarme wrote:
On a related topic, I'm also searching for a way to suggest alternate
spelling of words to the user, when we found a word which is very less
frequent used in the index or not in the index at all. I'm Austrian
based, when I e.g. search for "retthich" (wrong spelled "rettich"
which is radish), Google suggests me the proper spelled word. I'm
searching for a way to figure how to accomplish this, but again this
may be lucene off-topic and/or I should properly start a separate
thread ...
you can use the ngram pattern and levestein distance to find near words.
I try with phonetic and aspell dictionnary.
Thanks for the dictionary hint. So obvious, but still I haven't thought about
it until you mentioned it!
I've had really great success with the following pattern:
* after the Lucene index was created, I generate a myspell compatible
dictionary from it
* when the search returns no result, every term is ran through myspell
suggestion
* the top five myspell suggestion of each term are re-sorted by their
frequency from the Lucene index
Additionally: when the user only entered a single term, I'm also providing the
second best results as alternative (did you mean x or y?).
The results have been very good so far, thanks again!
- Markus
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