Upload README.md with huggingface_hub

README.md

@@ -1,161 +1,4 @@
 ---
-dataset_info:
-- config_name: go-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 332880779
-    num_examples: 87647
-  download_size: 152886043
-  dataset_size: 332880779
-- config_name: go-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 857307308
-    num_examples: 1541111
-  download_size: 372370345
-  dataset_size: 857307308
-- config_name: java-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 329489331
-    num_examples: 81657
-  download_size: 121982790
-  dataset_size: 329489331
-- config_name: java-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 1021079487
-    num_examples: 1491655
-  download_size: 399345274
-  dataset_size: 1021079487
-- config_name: javascript-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 409752585
-    num_examples: 79684
-  download_size: 176784224
-  dataset_size: 409752585
-- config_name: javascript-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 1088286595
-    num_examples: 1310965
-  download_size: 469542786
-  dataset_size: 1088286595
-- config_name: php-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 370243006
-    num_examples: 75632
-  download_size: 150322586
-  dataset_size: 370243006
-- config_name: php-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 998839060
-    num_examples: 1343442
-  download_size: 407549664
-  dataset_size: 998839060
-- config_name: python-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 418543676
-    num_examples: 97147
-  download_size: 181554947
-  dataset_size: 418543676
-- config_name: python-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 1343594572
-    num_examples: 1807480
-  download_size: 595226410
-  dataset_size: 1343594572
-- config_name: ruby-v1-hard-negatives-100k
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  - name: negs
-    list: string
-  splits:
-  - name: train
-    num_bytes: 162963647
-    num_examples: 68382
-  download_size: 75976437
-  dataset_size: 162963647
-- config_name: ruby-v1-pair-2M
-  features:
-  - name: query
-    dtype: string
-  - name: pos
-    dtype: string
-  splits:
-  - name: train
-    num_bytes: 547891986
-    num_examples: 1175219
-  download_size: 248256611
-  dataset_size: 547891986
 configs:
 - config_name: go-v1-hard-negatives-100k
   data_files:
@@ -218,11 +61,9 @@ Source dataset and paper:
 
 ## What This Release Contains
 
-This release keeps the original subset layout (6 languages x pair + hard-negatives) and applies a deterministic rule-based noise filter.
+This release keeps the original subset layout (6 languages x pair + hard-negatives) and applies deterministic rule-based filtering.
 
-Important:
-- Counts are post-filter counts, so they are slightly smaller than the nominal 2M / 100k targets.
-- Data is published in normalized IR format.
+In this revision, query-level deduplication is also applied per subset: if `query` is duplicated, only the first row is kept.
 
 ## Config Layout And Schema
 
@@ -234,22 +75,46 @@ Schema:
 - Pair configs: `query`, `pos`
 - Hard-negative configs: `query`, `pos`, `negs` (list[string])
 
-## Subsets And Row Counts (Post-filter)
+## Subsets And Row Counts (After Filter + Query Dedup)
 
 | Subset (config name) | split | num_examples |
 | --- | --- | ---: |
-| `go-v1-pair-2M` | `train` | 1,992,985 |
-| `go-v1-hard-negatives-100k` | `train` | 99,663 |
-| `java-v1-pair-2M` | `train` | 1,752,593 |
-| `java-v1-hard-negatives-100k` | `train` | 87,504 |
-| `javascript-v1-pair-2M` | `train` | 1,960,276 |
-| `javascript-v1-hard-negatives-100k` | `train` | 98,025 |
-| `php-v1-pair-2M` | `train` | 1,710,537 |
-| `php-v1-hard-negatives-100k` | `train` | 85,460 |
-| `python-v1-pair-2M` | `train` | 1,990,051 |
-| `python-v1-hard-negatives-100k` | `train` | 99,535 |
-| `ruby-v1-pair-2M` | `train` | 1,583,047 |
-| `ruby-v1-hard-negatives-100k` | `train` | 79,040 |
+| `go-v1-pair-2M` | `train` | 1,541,111 |
+| `go-v1-hard-negatives-100k` | `train` | 87,647 |
+| `java-v1-pair-2M` | `train` | 1,491,655 |
+| `java-v1-hard-negatives-100k` | `train` | 81,657 |
+| `javascript-v1-pair-2M` | `train` | 1,310,965 |
+| `javascript-v1-hard-negatives-100k` | `train` | 79,684 |
+| `php-v1-pair-2M` | `train` | 1,343,442 |
+| `php-v1-hard-negatives-100k` | `train` | 75,632 |
+| `python-v1-pair-2M` | `train` | 1,807,480 |
+| `python-v1-hard-negatives-100k` | `train` | 97,147 |
+| `ruby-v1-pair-2M` | `train` | 1,175,219 |
+| `ruby-v1-hard-negatives-100k` | `train` | 68,382 |
+
+Total rows:
+- Pair: 8,669,872
+- Hard-negatives: 490,149
+- Overall: 9,160,021
+
+## Filter Impact (Query Dedup Stage)
+
+The table below shows only the query-dedup impact on top of the previous rule-based filter.
+
+| Subset | before | after | removed | removed_ratio |
+| --- | ---: | ---: | ---: | ---: |
+| `go-v1-pair-2M` | 1,992,985 | 1,541,111 | 451,874 | 22.67% |
+| `go-v1-hard-negatives-100k` | 99,663 | 87,647 | 12,016 | 12.06% |
+| `java-v1-pair-2M` | 1,752,593 | 1,491,655 | 260,938 | 14.89% |
+| `java-v1-hard-negatives-100k` | 87,504 | 81,657 | 5,847 | 6.68% |
+| `javascript-v1-pair-2M` | 1,960,276 | 1,310,965 | 649,311 | 33.12% |
+| `javascript-v1-hard-negatives-100k` | 98,025 | 79,684 | 18,341 | 18.71% |
+| `php-v1-pair-2M` | 1,710,537 | 1,343,442 | 367,095 | 21.46% |
+| `php-v1-hard-negatives-100k` | 85,460 | 75,632 | 9,828 | 11.50% |
+| `python-v1-pair-2M` | 1,990,051 | 1,807,480 | 182,571 | 9.17% |
+| `python-v1-hard-negatives-100k` | 99,535 | 97,147 | 2,388 | 2.40% |
+| `ruby-v1-pair-2M` | 1,583,047 | 1,175,219 | 407,828 | 25.76% |
+| `ruby-v1-hard-negatives-100k` | 79,040 | 68,382 | 10,658 | 13.48% |
 
 ## Quick Usage
 
@@ -300,11 +165,16 @@ A row is dropped if `query` starts with any of the following prefixes:
 - `"/ access modifiers changed from:"`
 
 2. Minimum positive-document length
-A row is dropped if the positive side is shorter than 30 characters.
-- Pair task: `document` length >= 30 required
-- Hard-negatives task: `positive` length >= 30 required
+A row is dropped if the positive side text is shorter than 30 characters.
+- Pair configs: `pos` length >= 30 required
+- Hard-negative configs: `pos` length >= 30 required
 
 3. Hard-negative validity constraint
 For hard-negative configs, at least one valid negative must remain after normalization (`min_negs = 1`).
 
+4. Query-level deduplication
+Within each subset split, rows are grouped by exact `query` string.
+- Keep the first occurrence
+- Drop all later duplicates
+
 This filtering is purely rule-based (no model scoring), targeting high-noise templates and low-information positives while preserving broad retrieval coverage.