Code Coverage for /workspace/src/extensions/WikibaseCirrusSearch/src/config/ElasticSearchRescoreFunctions.php

1	<?php
2	// ElasticSearch function for entity weight
3	// satu function is from includes/Search/RescoreBuilders.php in CirrusSearch
4	// The formula is: x^a/(k^a+x^a)
5	// NOTE: that satu is always 0.5 when x == k.
6	// See also: https://www.desmos.com/calculator/ahuzvkiqmi
7	return [
8	'entity_weight' => [
9	'score_mode' => 'sum',
10	'functions' => [
11	[
12	// Incoming links: k = 100, since it is normal to have a bunch of incoming links
13	'type' => 'satu',
14	'weight' => '0.6',
15	'params' => [ 'field' => 'incoming_links', 'missing' => 0, 'a' => 1, 'k' => 100 ]
16	],
17	[
18	// Site links: k = 20, tens of sites is a lot
19	'type' => 'satu',
20	'weight' => '0.4',
21	'params' => [ 'field' => 'sitelink_count', 'missing' => 0, 'a' => 2, 'k' => 20 ]
22	],
23	],
24	],
25	'entity_weight_boost' => [
26	'score_mode' => 'sum',
27	'functions' => [
28	[
29	// Incoming links: k = 100, since it is normal to have a bunch of incoming links
30	'type' => 'satu',
31	'weight' => '0.6',
32	'params' => [ 'field' => 'incoming_links', 'missing' => 0, 'a' => 1, 'k' => 100 ]
33	],
34	[
35	// Site links: k = 20, tens of sites is a lot
36	'type' => 'satu',
37	'weight' => '0.4',
38	'params' => [ 'field' => 'sitelink_count', 'missing' => 0, 'a' => 2, 'k' => 20 ]
39	],
40	[
41	// (De)boosting by statement values, see statementBoost in search settings
42	'type' => 'term_boost',
43	'weight' => '0.1',
44	'params' => [
45	'statement_keywords' => '_statementBoost_'
46	]
47	]
48	],
49	],
50	];