chunk_id large_stringlengths 8 11 ⌀ | question_id large_stringlengths 5 8 | language large_stringclasses 1
value | chunk_index int64 0 5 ⌀ | chunk_text large_stringlengths 166 2.96k ⌀ | sparse_text large_stringlengths 103 3.24k | dense_vector listlengths 3.58k 3.58k ⌀ | sparse_indices listlengths 9 256 ⌀ | sparse_values listlengths 9 256 ⌀ | export_source large_stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|---|
33585128_c0 | 33585128 | fortran | 0 | Title: Unexpected results from SGEMM
Problem title: Unexpected results from SGEMM
Tags: blas, gfortran, fortran
Problem: Unexpected results from SGEMM
Code signals: SGEMM, Unexpected | Unexpected results from SGEMM Unexpected results from SGEMM blas gfortran fortran SGEMM Unexpected Unexpected results from SGEMM I'm trying to replace the following instance of matmul in the code calculating A*B': with SGEMM: Where mat is an type that contains the following relevant data: Running the code on a small te... | [
-0.0032958984375,
0.007720947265625,
-0.0166015625,
-0.0228271484375,
-0.0186767578125,
0.0024566650390625,
0.0038299560546875,
-0.0021820068359375,
0.0213623046875,
0.047119140625,
-0.005615234375,
0.01513671875,
-0.0026702880859375,
0.00982666015625,
0.002716064453125,
-0.00349426269... | [
992,
83613,
13,
89829,
50339,
1295,
159,
136787,
594,
97612,
17883,
1603,
100,
50713,
31577,
47,
91995,
25632,
110527,
2589,
15458,
18151,
74481,
62,
1639,
571,
25,
678,
10644,
70541,
29191,
2053,
28398,
19336,
3034,
7440,
335,
83,
140992,
... | [
0.02197265625,
0.07379150390625,
0.055633544921875,
0.040618896484375,
0.133544921875,
0.058868408203125,
0.085693359375,
0.2254638671875,
0.2227783203125,
0.134033203125,
0.064697265625,
0.118408203125,
0.049896240234375,
0.1341552734375,
0.0579833984375,
0.010162353515625,
0.155151... | embed |
60768026_c0 | 60768026 | fortran | 0 | Title: Incompatible rank 0 and 1 in fortran
Problem title: Incompatible rank 0 and 1 in fortran
Tags: gfortran, fortran, arrays
Problem: Incompatible rank 0 and 1 in fortran
Code signals: Incompatible | Incompatible rank 0 and 1 in fortran Incompatible rank 0 and 1 in fortran gfortran fortran arrays Incompatible Incompatible rank 0 and 1 in fortran ab is a 4 x 5 matrix i.e., ab(4,5) and x is an array of length 4 i.e., x(4) The do loop says incompatible rank 0 and 1. | [
0.0101318359375,
0.01007080078125,
-0.0294189453125,
-0.0157470703125,
-0.01434326171875,
-0.0186767578125,
0.03466796875,
0.00086212158203125,
0.01953125,
0.039306640625,
0.019287109375,
-0.0208740234375,
0.015869140625,
-0.00186920166015625,
-0.0123291015625,
-0.024658203125,
0.007... | [
360,
277,
10974,
2661,
30648,
757,
136,
106,
23,
100,
50713,
17883,
1603,
10298,
4778,
1563,
83,
201,
1022,
190,
50944,
425,
80389,
140909,
99217,
54,
40956,
17378,
82940,
1888,
615
] | [
0.1046142578125,
0.139404296875,
0.2137451171875,
0.1600341796875,
0.25537109375,
0.1702880859375,
0.138916015625,
0.1297607421875,
0.049285888671875,
0.1170654296875,
0.25439453125,
0.0726318359375,
0.148681640625,
0.12890625,
0.042724609375,
0.1663818359375,
0.0243377685546875,
0... | embed |
50232296_c1 | 50232296 | fortran | 1 | 0 3.0 4.0 12.0 1.0 9.0 -1.0 2.0 -3.0 -27.0 2.0 -1.0 7.0 3.0 -5.0 14.0 3.0 2.0 3.0 12.0 -1.0 -17.0 4.0 -3.0 -5.0 -1.0 15.0 12.0
Code signals: Having, Fortran, OPEN, FILE, sistema.txt, THEN, READ, END, CLOSE | 0 3.0 4.0 12.0 1.0 9.0 -1.0 2.0 -3.0 -27.0 2.0 -1.0 7.0 3.0 -5.0 14.0 3.0 2.0 3.0 12.0 -1.0 -17.0 4.0 -3.0 -5.0 -1.0 15.0 12.0
Code signals: Having, Fortran, OPEN, FILE, sistema.txt, THEN, READ, END, CLOSE | [
0.020751953125,
0.005767822265625,
-0.01483154296875,
0.005035400390625,
-0.0010833740234375,
-0.00811767578125,
-0.0164794921875,
0.007415771484375,
0.017822265625,
0.002655029296875,
-0.00799560546875,
-0.006805419921875,
-0.0230712890625,
-0.015869140625,
-0.0157470703125,
-0.017089... | [
757,
17596,
40401,
106,
73011,
53855,
3569,
2389,
20,
102107,
16655,
132265,
122297,
129884,
6,
187461,
6370,
68940,
6281,
28864,
26073,
7,
12,
171855,
19953,
1603,
180,
65441,
563,
52099,
3128,
5,
124326,
23373,
839,
188300,
39015,
92933,
... | [
0.1688232421875,
0.2481689453125,
0.24609375,
0.095947265625,
0.1993408203125,
0.169921875,
0.1483154296875,
0.051239013671875,
0.0282745361328125,
0.1451416015625,
0.2088623046875,
0.216064453125,
0.067138671875,
0.1776123046875,
0.04095458984375,
0.1212158203125,
0.10723876953125,
... | embed |
35886412_c0 | 35886412 | fortran | 0 | "Title: DATA statement from Fortran to C\nProblem title: DATA statement from Fortran to C\nTags: for(...TRUNCATED) | "DATA statement from Fortran to C DATA statement from Fortran to C fortran77 fortran c Fortran DATA (...TRUNCATED) | [0.05810546875,0.00970458984375,-0.03173828125,0.01470947265625,-0.00775146484375,-0.01025390625,0.0(...TRUNCATED) | [391,17758,63805,1295,19953,1603,47,313,100,50713,14546,501,5419,28751,8244,28482,104165,15513,3871,(...TRUNCATED) | [0.08819580078125,0.1722412109375,0.20166015625,0.0931396484375,0.180419921875,0.2095947265625,0.133(...TRUNCATED) | embed |
5885994_c0 | 5885994 | fortran | 0 | "Title: Multitasking in Fortran\nProblem title: Multitasking in Fortran\nTags: fortran\nProblem: Mul(...TRUNCATED) | "Multitasking in Fortran Multitasking in Fortran fortran Multitasking Fortran Multitasking in Fortra(...TRUNCATED) | [0.0218505859375,0.01031494140625,-0.0252685546875,0.0034942626953125,-0.0152587890625,-0.0162353515(...TRUNCATED) | [
19335,
1073,
6048,
23,
19953,
1603,
100,
50713,
11249,
831,
87,
54,
6024,
136,
1940,
63923,
36398
] | [0.181640625,0.279296875,0.1448974609375,0.098876953125,0.1761474609375,0.2568359375,0.071044921875,(...TRUNCATED) | embed |
50069808_c0 | 50069808 | fortran | 0 | "Title: Extract substring of Fortran string array\nProblem title: Extract substring of Fortran strin(...TRUNCATED) | "Extract substring of Fortran string array Extract substring of Fortran string array arrays substrin(...TRUNCATED) | [0.01171875,-0.0284423828125,-0.0157470703125,0.010009765625,-0.0213623046875,-0.021484375,0.0097656(...TRUNCATED) | [31501,15390,1614,91693,111,19953,1603,79315,10298,53,100,50713,17,5759,11249,14602,1632,125663,10,1(...TRUNCATED) | [0.1929931640625,0.0693359375,0.2047119140625,0.2398681640625,0.0250396728515625,0.128662109375,0.21(...TRUNCATED) | embed |
38329496_c0 | 38329496 | fortran | 0 | "Title: SELECTED_REAL_KIND in C\nProblem title: SELECTED_REAL_KIND in C\nTags: fortran, c\nProblem: (...TRUNCATED) | "SELECTED_REAL_KIND in C SELECTED_REAL_KIND in C fortran c SELECTED_REAL_KIND SELECTED_REAL_KIND in (...TRUNCATED) | [-0.0002689361572265625,-0.012451171875,0.010009765625,0.00482177734375,0.0098876953125,-0.016967773(...TRUNCATED) | [6755,144832,17610,41519,866,52859,397,23,313,100,50713,501,454,2071,2685,2499,183234,73,19953,1603,(...TRUNCATED) | [0.0975341796875,0.2005615234375,0.12109375,0.167724609375,0.116943359375,0.18408203125,0.1610107421(...TRUNCATED) | embed |
12354503_c0 | 12354503 | fortran | 0 | "Title: Reading format in Fortran 90\nProblem title: Reading format in Fortran 90\nTags: format, for(...TRUNCATED) | "Reading format in Fortran 90 Reading format in Fortran 90 format fortran Reading Fortran F10.4 idx1(...TRUNCATED) | [-0.0076904296875,-0.0179443359375,0.0012359619140625,-0.007293701171875,-0.004791259765625,-0.01275(...TRUNCATED) | [104951,9384,23,19953,1603,2510,100,50713,563,963,617,425,363,8473,1176,58696,11435,47,12301,45646,6(...TRUNCATED) | [0.2088623046875,0.2083740234375,0.031219482421875,0.1243896484375,0.177001953125,0.251708984375,0.0(...TRUNCATED) | embed |
70963680_c1 | 70963680 | fortran | 1 | "76489834 In Python, I have: A[k,k:m] [ 0.888074 0.325058 0.325058] B[k:m,k:m] [[ 1.000000 1.000000 (...TRUNCATED) | "76489834 In Python, I have: A[k,k:m] [ 0.888074 0.325058 0.325058] B[k:m,k:m] [[ 1.000000 1.000000 (...TRUNCATED) | [0.0184326171875,0.00689697265625,0.007354736328125,-0.005157470703125,-0.018310546875,-0.0142822265(...TRUNCATED) | [14810,158287,187716,360,145581,87,765,62,92,4,12,39,268,378,132208,111056,16360,127089,24291,10057,(...TRUNCATED) | [0.029571533203125,0.0576171875,0.10009765625,0.08038330078125,0.321533203125,0.0784912109375,0.1396(...TRUNCATED) | embed |
20146241_c3 | 20146241 | fortran | 3 | ", DHAVE_CONFIG_H, DDI88xx, di8810-di8810.o, di8810-di8810.Tpo, di8810.c, di8810-di8810.Po, di8810-g(...TRUNCATED) | ", DHAVE_CONFIG_H, DDI88xx, di8810-di8810.o, di8810-di8810.Tpo, di8810.c, di8810-di8810.Po, di8810-g(...TRUNCATED) | [0.004852294921875,-0.003143310546875,-0.0072021484375,0.0003986358642578125,-0.00506591796875,-0.01(...TRUNCATED) | [6,4,132023,24878,454,77980,22724,724,841,391,17507,12772,52219,45,963,9,428,5,31,618,771,238,7192,1(...TRUNCATED) | [0.093017578125,0.1060791015625,0.156982421875,0.292724609375,0.06170654296875,0.1094970703125,0.193(...TRUNCATED) | embed |
End of preview. Expand in Data Studio
Fortran StackOverflow Vector Dataset Datasheet
1. What This Dataset Is
This dataset is the Fortran-specific vector shard of the Stack2Graph StackOverflow retrieval corpus. Each Hugging Face dataset repository contains exactly one language dataset.
It is optimized for dense+sparse retrieval, Qdrant restoration, and embedding-based RAG experiments.
It is used in the Stack2Graph project as the vector counterpart to the language-scoped RDF knowledge graph shards.
See the Stack2Graph repository for more details: https://github.com/tha-atlas/Stack2Graph
2. Repository Layout
dataset_manifest.json
question_metadata_*.parquet
chunk_records_*.parquet
question_records_*.parquet
dataset_manifest.json: language-scoped manifest for this dataset shard.question_metadata_*.parquet: per-question metadata and retrieval bookkeeping.chunk_records_*.parquet: chunk-level vector rows when parent-child indexing is enabled.question_records_*.parquet: question-level vector rows when chunking is disabled or exported alongside chunk data.
3. Data Model And Coverage
The dataset is derived from Stack Overflow questions selected for the Fortran programming language. It contains the structured records needed to rebuild the Stack2Graph Qdrant collection for that language.
Coverage scope:
- records are retained when they match the Stack2Graph supported language-tag set
- this repository contains only the Fortran shard
- the archive may contain both metadata-only and retrieval-ready vector rows depending on the export mode
4. Recommended Preprocessing
- Read
dataset_manifest.jsonfirst and use it as the source of truth for included Parquet files. - Load all Parquet shards for this repository into your vector indexing pipeline.
- Rebuild or restore the Qdrant collection
stackoverflow_fortran_vector. - Preserve attribution and license metadata during downstream export.
5. Automatic Download And Vector DB Setup
You do not need to regenerate embeddings from GraphDB to use this dataset.
In the Stack2Graph repository, you can use the automation script
python -m experiment.load_hf_datasets_into_services --skip-kg to download dataset artifacts
and prepare the vector database service state automatically.
Typical workflow:
- Clone and configure Stack2Graph (
.envwith HF token and service paths). - Clone and configure Stack2Graph (
.envwith HF token and service paths). - Start required local services:
docker compose up -d
- Run the loader script:
python -m experiment.load_hf_datasets_into_services --skip-kg
For manual usage without automation, directly ingest the listed Parquet files into your vector database.
6. Quality Notes And Caveats
- A Stack Overflow question may belong to multiple language shards when tagged with multiple languages.
- Embeddings and sparse representations depend on the configured export pipeline and model versions.
- As with community-generated data, content may include noise, bias, and temporal drift.
7. Intended Use
- semantic retrieval and reranking
- RAG and hybrid retriever experiments
- vector database benchmarking and diagnostics
- language-scoped developer tooling research
8. Limitations
- Not a complete mirror of all Stack Overflow content.
- Not all export modes include the same row types or chunk layouts.
- Best used together with the Stack2Graph retrieval pipeline and Qdrant-compatible tooling.
9. Licensing And Attribution
This dataset inherits Stack Overflow source licensing and attribution requirements. Ensure compliant attribution and redistribution practices in all derived artifacts.
10. Suggested Citation
If you use this dataset, cite the Stack2Graph work:
- Stack2Graph: A Structured Knowledge Representation of Stack Overflow Data for Retrieval-based Question Answering
- Downloads last month
- 19