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| <h1 id="Egothor_Stemmer" data-uid="Egothor.Stemmer" class="text-break">Namespace Egothor.Stemmer |
| </h1> |
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| <p>Egothor stemmer API.</p> |
| </div> |
| <div class="markdown level0 conceptual"></div> |
| <div class="markdown level0 remarks"></div> |
| <h3 id="classes">Classes |
| </h3> |
| <h4><a class="xref" href="Egothor.Stemmer.Cell.html">Cell</a></h4> |
| <section><p>A <a class="xref" href="Egothor.Stemmer.Cell.html">Cell</a> is a portion of a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a>.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Compile.html">Compile</a></h4> |
| <section><p>The Compile class is used to compile a stemmer table.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Diff.html">Diff</a></h4> |
| <section><p>The Diff object generates a patch string. |
| <p> |
| A patch string is actually a command to a stemmer telling it how to reduce a |
| word to its root. For example, to reduce the word teacher to its root teach |
| the patch string Db would be generated. This command tells the stemmer to |
| delete the last 2 characters from the word teacher to reach the stem (the |
| patch commands are applied starting from the last character in order to save |
| </p></p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.DiffIt.html">DiffIt</a></h4> |
| <section><p>The DiffIt class is a means generate patch commands from an already prepared |
| stemmer table.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Gener.html">Gener</a></h4> |
| <section><p>The Gener object helps in the discarding of nodes which break the reduction |
| effort and defend the structure against large reductions.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Lift.html">Lift</a></h4> |
| <section><p>The Lift class is a data structure that is a variation of a Patricia trie. |
| <p> |
| Lift's <em>raison d'etre</em> is to implement reduction of the trie via the |
| Lift-Up method., which makes the data structure less liable to overstemming. |
| </p></p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a></h4> |
| <section><p>The <a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a> is a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> of <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a>s. It stores words and their associated patch |
| commands. The <a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a> handles patch commands individually (each command by |
| itself).</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.MultiTrie2.html">MultiTrie2</a></h4> |
| <section><p>The <a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a> is a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> of <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a>s. |
| <p> |
| It stores words and their associated patch commands. The <a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a> handles |
| patch commands broken into their constituent parts, as a <a class="xref" href="Egothor.Stemmer.MultiTrie.html">MultiTrie</a> does, but |
| the commands are delimited by the skip command. |
| </p></p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Optimizer.html">Optimizer</a></h4> |
| <section><p>The <a class="xref" href="Egothor.Stemmer.Optimizer.html">Optimizer</a> class is a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> that will be reduced (have empty rows removed). |
| <p> |
| The reduction will be made by joining two rows where the first is a subset of |
| the second. |
| </p></p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Optimizer2.html">Optimizer2</a></h4> |
| <section><p>The Optimizer class is a Trie that will be reduced (have empty rows removed). |
| <p> |
| This is the result of allowing a joining of rows when there is no collision |
| between non-<code>null</code> values in the rows. Information loss, resulting in |
| the stemmer not being able to recognize words (as in Optimizer), is |
| curtailed, allowing the stemmer to recognize words for which the original |
| trie was built. Use of this class allows the stemmer to be self-teaching. |
| </p></p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Reduce.html">Reduce</a></h4> |
| <section><p>The <a class="xref" href="Egothor.Stemmer.Reduce.html">Reduce</a> object is used to remove gaps in a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> which stores a dictionary.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Row.html">Row</a></h4> |
| <section><p>The <a class="xref" href="Egothor.Stemmer.Row.html">Row</a> class represents a row in a matrix representation of a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a>.</p> |
| </section> |
| <h4><a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a></h4> |
| <section><p>A <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> is used to store a dictionary of words and their stems. |
| <p> |
| Actually, what is stored are words with their respective patch commands. A |
| trie can be termed forward (keys read from left to right) or backward (keys |
| read from right to left). This property will vary depending on the language |
| for which a <a class="xref" href="Egothor.Stemmer.Trie.html">Trie</a> is constructed. |
| </p></p> |
| </section> |
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