/*

* The MIT License

*

* Copyright 2016 feature[23]

*

* 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.

*/

using System;

using F23.StringSimilarity.Utils;

namespace F23.StringSimilarity

{

public class StringSet

{

private readonly SparseBooleanVector _vector;

private readonly KShingling _ks;

public StringSet(SparseBooleanVector vector, KShingling ks)

{

_vector = vector;

_ks = ks;

}

public double JaccardSimilarity(StringSet other)

{

if (_ks != other._ks)

{

throw new Exception("Profiles were not created using the same kshingling object!");

}

return _vector.Jaccard(other._vector);

}

public double SorensenDiceSimilarity(StringSet other)

{

if (_ks != other._ks)

{

throw new Exception("Profiles were not created using the same kshingling object!");

}

return 2.0 * _vector.Intersection(other._vector) / (_vector.Size + other._vector.Size);

}

}

}