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Author SHA1 Message Date
Viktor Lofgren
baeb4a46cd (search) Reintroduce query rewriting for recipes, add rules for wikis and forums 2024-12-31 16:05:00 +01:00
Viktor Lofgren
5e2a8e9f27 (deploy) Add capability of adding tags to deploy script 2024-12-31 16:04:13 +01:00
Viktor
cc1a5bdf90 Merge pull request #138 from MarginaliaSearch/vlofgren-patch-1
Update ROADMAP.md
2024-12-31 14:41:02 +01:00
Viktor
7f7b1ffaba Update ROADMAP.md 2024-12-31 14:40:34 +01:00
5 changed files with 89 additions and 191 deletions

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@@ -8,20 +8,10 @@ be implemented as well.
Major goals:
* Reach 1 billion pages indexed
* Improve technical ability of indexing and search. Although this area has improved a bit, the
search engine is still not very good at dealing with longer queries.
## Proper Position Index (COMPLETED 2024-09)
The search engine uses a fixed width bit mask to indicate word positions. It has the benefit
of being very fast to evaluate and works well for what it is, but is inaccurate and has the
drawback of making support for quoted search terms inaccurate and largely reliant on indexing
word n-grams known beforehand. This limits the ability to interpret longer queries.
The positions mask should be supplemented or replaced with a more accurate (e.g.) gamma coded positions
list, as is the civilized way of doing this.
Completed with PR [#99](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/99)
* Improve technical ability of indexing and search. ~~Although this area has improved a bit, the
search engine is still not very good at dealing with longer queries.~~ (As of PR [#129](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/129), this has improved significantly. There is still more work to be done )
## Hybridize crawler w/ Common Crawl data
@@ -37,8 +27,7 @@ Retaining the ability to independently crawl the web is still strongly desirable
## Safe Search
The search engine has a bit of a problem showing spicy content mixed in with the results. It would be desirable
to have a way to filter this out. It's likely something like a URL blacklist (e.g. [UT1](https://dsi.ut-capitole.fr/blacklists/index_en.php) )
The search engine has a bit of a problem showing spicy content mixed in with the results. It would be desirable to have a way to filter this out. It's likely something like a URL blacklist (e.g. [UT1](https://dsi.ut-capitole.fr/blacklists/index_en.php) )
combined with naive bayesian filter would go a long way, or something more sophisticated...?
## Web Design Overhaul
@@ -55,15 +44,6 @@ associated with each language added, at least a models file or two, as well as s
It would be very helpful to find a speaker of a large language other than English to help in the fine tuning.
## Finalize RSS support (COMPLETED 2024-11)
Marginalia has experimental RSS preview support for a few domains. This works well and
it should be extended to all domains. It would also be interesting to offer search of the
RSS data itself, or use the RSS set to feed a special live index that updates faster than the
main dataset.
Completed with PR [#122](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/122) and PR [#125](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/125)
## Support for binary formats like PDF
The crawler needs to be modified to retain them, and the conversion logic needs to parse them.
@@ -80,5 +60,27 @@ This looks like a good idea that wouldn't just help clean up the search filters
website, but might be cheap enough we might go as far as to offer a number of ad-hoc custom search
filter for any API consumer.
I've talked to the stract dev and he does not think it's a good idea to mimic their optics language,
which is quite ad-hoc, but instead to work together to find some new common description language for this.
I've talked to the stract dev and he does not think it's a good idea to mimic their optics language, which is quite ad-hoc, but instead to work together to find some new common description language for this.
# Completed
## Proper Position Index (COMPLETED 2024-09)
The search engine uses a fixed width bit mask to indicate word positions. It has the benefit
of being very fast to evaluate and works well for what it is, but is inaccurate and has the
drawback of making support for quoted search terms inaccurate and largely reliant on indexing
word n-grams known beforehand. This limits the ability to interpret longer queries.
The positions mask should be supplemented or replaced with a more accurate (e.g.) gamma coded positions
list, as is the civilized way of doing this.
Completed with PR [#99](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/99)
## Finalize RSS support (COMPLETED 2024-11)
Marginalia has experimental RSS preview support for a few domains. This works well and
it should be extended to all domains. It would also be interesting to offer search of the
RSS data itself, or use the RSS set to feed a special live index that updates faster than the
main dataset.
Completed with PR [#122](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/122) and PR [#125](https://github.com/MarginaliaSearch/MarginaliaSearch/pull/125)

View File

@@ -25,6 +25,7 @@ public class QueryExpansion {
this::joinDashes,
this::splitWordNum,
this::joinTerms,
this::categoryKeywords,
this::ngramAll
);
@@ -98,6 +99,24 @@ public class QueryExpansion {
}
}
// Category keyword substitution, e.g. guitar wiki -> guitar generator:wiki
public void categoryKeywords(QWordGraph graph) {
for (var qw : graph) {
// Ensure we only perform the substitution on the last word in the query
if (!graph.getNextOriginal(qw).getFirst().isEnd()) {
continue;
}
switch (qw.word()) {
case "recipe", "recipes" -> graph.addVariant(qw, "category:food");
case "forum" -> graph.addVariant(qw, "generator:forum");
case "wiki" -> graph.addVariant(qw, "generator:wiki");
}
}
}
// Turn 'lawn chair' into 'lawnchair'
public void joinTerms(QWordGraph graph) {
QWord prev = null;

View File

@@ -1,165 +0,0 @@
package nu.marginalia.util.language;
import com.google.inject.Inject;
import nu.marginalia.term_frequency_dict.TermFrequencyDict;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.*;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
public class EnglishDictionary {
private final Set<String> englishWords = new HashSet<>();
private final TermFrequencyDict tfDict;
private final Logger logger = LoggerFactory.getLogger(getClass());
@Inject
public EnglishDictionary(TermFrequencyDict tfDict) {
this.tfDict = tfDict;
try (var resource = Objects.requireNonNull(ClassLoader.getSystemResourceAsStream("dictionary/en-words"),
"Could not load word frequency table");
var br = new BufferedReader(new InputStreamReader(resource))
) {
for (;;) {
String s = br.readLine();
if (s == null) {
break;
}
englishWords.add(s.toLowerCase());
}
}
catch (Exception ex) {
throw new RuntimeException(ex);
}
}
public boolean isWord(String word) {
return englishWords.contains(word);
}
private static final Pattern ingPattern = Pattern.compile(".*(\\w)\\1ing$");
public Collection<String> getWordVariants(String s) {
var variants = findWordVariants(s);
var ret = variants.stream()
.filter(var -> tfDict.getTermFreq(var) > 100)
.collect(Collectors.toList());
if (s.equals("recipe") || s.equals("recipes")) {
ret.add("category:food");
}
return ret;
}
public Collection<String> findWordVariants(String s) {
int sl = s.length();
if (sl < 2) {
return Collections.emptyList();
}
if (s.endsWith("s")) {
String a = s.substring(0, sl-1);
String b = s + "es";
if (isWord(a) && isWord(b)) {
return List.of(a, b);
}
else if (isWord(a)) {
return List.of(a);
}
else if (isWord(b)) {
return List.of(b);
}
}
if (s.endsWith("sm")) {
String a = s.substring(0, sl-1)+"t";
String b = s.substring(0, sl-1)+"ts";
if (isWord(a) && isWord(b)) {
return List.of(a, b);
}
else if (isWord(a)) {
return List.of(a);
}
else if (isWord(b)) {
return List.of(b);
}
}
if (s.endsWith("st")) {
String a = s.substring(0, sl-1)+"m";
String b = s + "s";
if (isWord(a) && isWord(b)) {
return List.of(a, b);
}
else if (isWord(a)) {
return List.of(a);
}
else if (isWord(b)) {
return List.of(b);
}
}
else if (ingPattern.matcher(s).matches() && sl > 4) { // humming, clapping
var a = s.substring(0, sl-4);
var b = s.substring(0, sl-3) + "ed";
if (isWord(a) && isWord(b)) {
return List.of(a, b);
}
else if (isWord(a)) {
return List.of(a);
}
else if (isWord(b)) {
return List.of(b);
}
}
else {
String a = s + "s";
String b = ingForm(s);
String c = s + "ed";
if (isWord(a) && isWord(b) && isWord(c)) {
return List.of(a, b, c);
}
else if (isWord(a) && isWord(b)) {
return List.of(a, b);
}
else if (isWord(b) && isWord(c)) {
return List.of(b, c);
}
else if (isWord(a) && isWord(c)) {
return List.of(a, c);
}
else if (isWord(a)) {
return List.of(a);
}
else if (isWord(b)) {
return List.of(b);
}
else if (isWord(c)) {
return List.of(c);
}
}
return Collections.emptyList();
}
public String ingForm(String s) {
if (s.endsWith("t") && !s.endsWith("tt")) {
return s + "ting";
}
if (s.endsWith("n") && !s.endsWith("nn")) {
return s + "ning";
}
if (s.endsWith("m") && !s.endsWith("mm")) {
return s + "ming";
}
if (s.endsWith("r") && !s.endsWith("rr")) {
return s + "ring";
}
return s + "ing";
}
}

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@@ -12,6 +12,7 @@ import nu.marginalia.index.query.limit.SpecificationLimit;
import nu.marginalia.index.query.limit.SpecificationLimitType;
import nu.marginalia.segmentation.NgramLexicon;
import nu.marginalia.term_frequency_dict.TermFrequencyDict;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;
@@ -207,6 +208,17 @@ public class QueryFactoryTest {
System.out.println(subquery);
}
@Test
public void testExpansion9() {
var subquery = parseAndGetSpecs("pie recipe");
Assertions.assertTrue(subquery.query.compiledQuery.contains(" category:food "));
subquery = parseAndGetSpecs("recipe pie");
Assertions.assertFalse(subquery.query.compiledQuery.contains(" category:food "));
}
@Test
public void testParsing() {
var subquery = parseAndGetSpecs("strlen()");

View File

@@ -222,6 +222,31 @@ def run_gradle_build(targets: str) -> None:
if return_code != 0:
raise BuildError(service, return_code)
def find_free_tag() -> str:
cmd = ['git', 'tag']
result = subprocess.run(cmd, capture_output=True, text=True)
if result.returncode != 0:
raise RuntimeError(f"Git command failed: {result.stderr}")
existing_tags = set(result.stdout.splitlines())
for i in range(1, 100000):
tag = f'deploy-{i:04d}'
if not tag in existing_tags:
return tag
raise RuntimeError(f"Failed to find a free deployment tag")
def add_tags(tags: str) -> None:
new_tag = find_free_tag()
cmd = ['git', 'tag', new_tag, '-am', tags]
result = subprocess.run(cmd)
if result.returncode != 0:
raise RuntimeError(f"Git command failed: {result.stderr}")
# Example usage:
if __name__ == '__main__':
# Define service configuration
@@ -295,7 +320,9 @@ if __name__ == '__main__':
parser = argparse.ArgumentParser(
prog='deployment.py',
description='Continuous Deployment helper')
parser.add_argument('-v', '--verify', help='Verify the tags are valid, if present', action='store_true')
parser.add_argument('-a', '--add', help='Add the tags provided as a new deployment tag, usually combined with -t', action='store_true')
parser.add_argument('-t', '--tag', help='Use the specified tag value instead of the head git tag starting with deploy-')
args = parser.parse_args()
@@ -316,7 +343,10 @@ if __name__ == '__main__':
print("Services to build:", plan.services_to_build)
print("Instances to deploy:", [container.name for container in plan.instances_to_deploy])
if not args.verify:
if args.verify:
if args.add:
add_tags(args.tag)
else:
print("\nExecution Plan:")
build_and_deploy(plan, SERVICE_CONFIG)