{"id":2011,"date":"2023-08-11T16:28:55","date_gmt":"2023-08-11T08:28:55","guid":{"rendered":"https:\/\/www.yohz.com\/blogs\/?p=2011"},"modified":"2023-08-11T16:28:55","modified_gmt":"2023-08-11T08:28:55","slug":"searching-pdf-files-using-word-stemmers","status":"publish","type":"post","link":"https:\/\/www.yohz.com\/blogs\/2023\/08\/11\/searching-pdf-files-using-word-stemmers\/","title":{"rendered":"Searching PDF files using word stemmers"},"content":{"rendered":"

Easy PDF Search<\/a> by default searches for complete words\/phrases in your PDF files.\u00a0 For example, if we search for the word like<\/strong>, only files containing that exact word are returned and highlighted in the search results.<\/p>\n

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If we wanted to search for words starting with the word like<\/strong>, we can perform a prefix search using the *<\/strong> character e.g. like*<\/strong><\/p>\n

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This returns all words with the prefix like<\/strong>.\u00a0 Unrelated words (from a grammar perspective) like likelihood<\/strong> and likewise<\/strong>, will be returned, while a related noun like liking<\/strong> will not be returned.<\/p>\n

Stemmed words<\/h3>\n

Stemming is the process of removing a part of a word,<\/i> or reducing a word to its stem or root.\u00a0 In the example above, the words like<\/strong>, likes<\/strong>, liking<\/strong>, liked<\/strong>, and likely<\/strong> all share the same root word i.e. like<\/strong>.<\/p>\n

When we want Easy PDF Search<\/a> to use stem words when searching e.g.<\/p>\n

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we need to first create a stem database, then search that stem database.<\/p>\n

Creating a stem database<\/h3>\n

To create a stem database, click on the Options > Stemmer language > Settings<\/strong> item.<\/p>\n

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In the Stemmer Settings<\/strong> window, select up to 5 languages to create a stem database for.<\/p>\n

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You can create stem databases for the following 27 languages:<\/p>\n