AP Calculator

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This node calculates Precision@k (Pr@k) and Average Precision (AP) values for ranked lists. For a description see Text Retrieval Quality: A Primer (Kavi Mahesh, Oracle Corporation, 1999).

Options

Relevance column
This option specifies the column indicating the relevance of the current row. If the cell is not of boolean type, it is parsed to a boolean value. In case of a string column, a value of true indicates that the current row is relevant, and irrelevant otherwise. In case of an integer, a value of 1 indicates that the current row is relevant, and irrelevant otherwise.

Input Ports

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Table with ranked entries and column indicating their relevance (boolean, string, or integer).

Output Ports

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Input table with appended Pr@k and AP columns.

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Installation

To use this node in KNIME, install the extension Palladian for KNIME from the below update site following our NodePit Product and Node Installation Guide:

v4.4

A zipped version of the software site can be downloaded here.

Plugin provider: palladian.ws
Plugin version: 2.4.1.202103282119
On NodePit since: 2021-07-02
Last update: 2021-10-20
Tags: Streamable
KNIME versions: Since v3.6
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