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Tune suggestions

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This commit is contained in:
Koitharu
2023-05-10 19:16:17 +03:00
parent d633204efa
commit 2169ee7a5b
2 changed files with 18 additions and 6 deletions
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20
app/src/main/java/org/koitharu/kotatsu/suggestions/ui/SuggestionsWorker.kt
View File

@@ -122,7 +122,7 @@ class SuggestionsWorker @AssistedInject constructor(
if (seed.isEmpty() || sources.isEmpty()) {
return 0
}
val tagsBlacklist = TagsBlacklist(appSettings.suggestionsTagsBlacklist, 0.3f)
val tagsBlacklist = TagsBlacklist(appSettings.suggestionsTagsBlacklist, TAG_EQ_THRESHOLD)
val tags = seed.flatMap { it.tags.map { x -> x.title } }.takeMostFrequent(10)
val producer = channelFlow {
@@ -149,7 +149,9 @@ class SuggestionsWorker @AssistedInject constructor(
val manga = suggestions[Random.nextInt(0, suggestions.size / 3)]
val details = mangaRepositoryFactory.create(manga.manga.source)
.getDetails(manga.manga)
showNotification(details)
if (details !in tagsBlacklist) {
showNotification(details)
}
}.onFailure {
it.printStackTraceDebug()
}
@@ -167,7 +169,7 @@ class SuggestionsWorker @AssistedInject constructor(
val order = preferredSortOrders.first { it in availableOrders }
val availableTags = repository.getTags()
val tag = tags.firstNotNullOfOrNull { title ->
availableTags.find { x -> x.title.almostEquals(title, threshold = 0.3f) }
availableTags.find { x -> x.title.almostEquals(title, TAG_EQ_THRESHOLD) }
}
val list = repository.getList(0, setOfNotNull(tag), order).asArrayList()
if (appSettings.isSuggestionsExcludeNsfw) {
@@ -270,12 +272,21 @@ class SuggestionsWorker @AssistedInject constructor(
private fun computeRelevance(mangaTags: Set<MangaTag>, allTags: List<String>): Float {
val maxWeight = (allTags.size + allTags.size + 1 - mangaTags.size) * mangaTags.size / 2.0
val weight = mangaTags.sumOf { tag ->
val index = allTags.indexOf(tag.title)
val index = allTags.inexactIndexOf(tag.title, TAG_EQ_THRESHOLD)
if (index < 0) 0 else allTags.size - index
}
return (weight / maxWeight).pow(2.0).toFloat()
}
private fun Iterable<String>.inexactIndexOf(element: String, threshold: Float): Int {
forEachIndexed { i, t ->
if (t.almostEquals(element, threshold)) {
return i
}
}
return -1
}
companion object {
private const val TAG = "suggestions"
@@ -286,6 +297,7 @@ class SuggestionsWorker @AssistedInject constructor(
private const val WORKER_NOTIFICATION_ID = 36
private const val MAX_RESULTS = 80
private const val MAX_RAW_RESULTS = 200
private const val TAG_EQ_THRESHOLD = 0.4f
private val preferredSortOrders = listOf(
SortOrder.UPDATED,

4
app/src/main/java/org/koitharu/kotatsu/utils/ext/StringExt.kt
View File

@@ -29,8 +29,8 @@ fun String.toUUIDOrNull(): UUID? = try {
*/
fun String.almostEquals(other: String, @FloatRange(from = 0.0) threshold: Float): Boolean {
if (threshold == 0f) {
return equals(other)
return equals(other, ignoreCase = true)
}
val diff = levenshteinDistance(other) / ((length + other.length) / 2f)
val diff = lowercase().levenshteinDistance(other.lowercase()) / ((length + other.length) / 2f)
return diff < threshold
}