3a2bab69-425f-4347-978c-d74384d2f1dd.jpg

Technical Lead

976d0b0f-daca-42cb-b88d-66ab00113728.nupkg

A commonly used approach to match similar documents is based on counting the maximum number of common words between the documents.

Still, this approach has an inherent flaw: as the size of the document increases, the number of common words tends to grow even if the documents cover different topics.

The cosine similarity helps overcome this fundamental flaw in the ‘count-the-common-words’ or Euclidean distance approach.

**Input**:

*   TestingDocumentText - string containing the text content to be tested
*   TrainingDocumentText - string containing the text content to be trained

**Output**:

*   CosineSimilarityValue - decimal value ranging between \[0-1\]

Cosine similarity is a metric used to determine how similar the documents are irrespective of their size

04a93efc-5184-407f-99b4-8b6fe6a60c33.PNG

8d65f935-5b97-474c-87c4-87c180bef61b.PNG

MIT License Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Version	Release Date	Download Link
1.0.1	January 20, 2020
Added tag to nuget package

Cosine Similarity