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  2. Cluster analysis - Wikipedia

    en.wikipedia.org/wiki/Cluster_analysis

    Cluster analysis or clustering is the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some specific sense defined by the analyst) to each other than to those in other groups (clusters).

  3. Lexis (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Lexis_(linguistics)

    It then calculates the occurrences of that word together with the KWIC ("joint frequency") to determine if that combination is unusually common, in other words, if the word combination occurs significantly more often than would be expected by its frequency alone. If so, the collocation is considered strong, and is worth paying closer attention to.

  4. Lemmatization - Wikipedia

    en.wikipedia.org/wiki/Lemmatization

    The word "walk" is the base form for the word "walking", and hence this is matched in both stemming and lemmatization. The word "meeting" can be either the base form of a noun or a form of a verb ("to meet") depending on the context; e.g., "in our last meeting" or "We are meeting again tomorrow".

  5. Merge (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Merge_(linguistics)

    In this example by Cecchetto (2015), the verb "read" unambiguously labels the structure because "read" is a word, which means it is a probe by definition, in which "read" selects "the book". the bigger constituent generated by merging the word with the syntactic objects receives the label of the word itself, which allow us to label the tree as ...

  6. Document clustering - Wikipedia

    en.wikipedia.org/wiki/Document_clustering

    3. Removing stop words and punctuation. Some tokens are less important than others. For instance, common words such as "the" might not be very helpful for revealing the essential characteristics of a text. So usually it is a good idea to eliminate stop words and punctuation marks before doing further analysis. 4. Computing term frequencies or ...

  7. Core Python Programming - Wikipedia

    en.wikipedia.org/wiki/Core_Python_Programming

    Core Python Programming is a textbook on the Python programming language, written by Wesley J. Chun. The first edition of the book was released on December 14, 2000. [1] The second edition was released several years later on September 18, 2006. [2] Core Python Programming is mainly targeted at higher education students and IT professionals. [3]

  8. Document classification - Wikipedia

    en.wikipedia.org/wiki/Document_classification

    Content-based classification is classification in which the weight given to particular subjects in a document determines the class to which the document is assigned. It is, for example, a common rule for classification in libraries, that at least 20% of the content of a book should be about the class to which the book is assigned. [1]

  9. List comprehension - Wikipedia

    en.wikipedia.org/wiki/List_comprehension

    Here, the list [0..] represents , x^2>3 represents the predicate, and 2*x represents the output expression.. List comprehensions give results in a defined order (unlike the members of sets); and list comprehensions may generate the members of a list in order, rather than produce the entirety of the list thus allowing, for example, the previous Haskell definition of the members of an infinite list.