| --- |
| license: cc-by-4.0 |
| language: |
| - de |
| task_categories: |
| - text-retrieval |
| tags: |
| - mteb |
| - german |
| - retrieval |
| - reranking |
| - benchmark |
| size_categories: |
| - 10K<n<100K |
| pretty_name: MTEB-DE — German Embedding/Retrieval Benchmark |
| configs: |
| - config_name: germandpr-corpus |
| data_files: |
| - split: corpus |
| path: germandpr/corpus/corpus.parquet |
| - config_name: germandpr-queries |
| data_files: |
| - split: train |
| path: germandpr/queries/train.parquet |
| - split: dev |
| path: germandpr/queries/dev.parquet |
| - split: test |
| path: germandpr/queries/test.parquet |
| - config_name: germandpr-qrels |
| data_files: |
| - split: train |
| path: germandpr/qrels/train.parquet |
| - split: dev |
| path: germandpr/qrels/dev.parquet |
| - split: test |
| path: germandpr/qrels/test.parquet |
| - config_name: jobs-corpus |
| data_files: |
| - split: corpus |
| path: jobs/corpus/corpus.parquet |
| - config_name: jobs-queries |
| data_files: |
| - split: train |
| path: jobs/queries/train.parquet |
| - split: dev |
| path: jobs/queries/dev.parquet |
| - split: test |
| path: jobs/queries/test.parquet |
| - config_name: jobs-qrels |
| data_files: |
| - split: train |
| path: jobs/qrels/train.parquet |
| - split: dev |
| path: jobs/qrels/dev.parquet |
| - split: test |
| path: jobs/qrels/test.parquet |
| - config_name: jobs-hard_negatives |
| data_files: |
| - split: train |
| path: jobs/hard_negatives/train.parquet |
| - split: dev |
| path: jobs/hard_negatives/dev.parquet |
| - split: test |
| path: jobs/hard_negatives/test.parquet |
| --- |
| |
| # MTEB-DE — German Embedding/Retrieval Benchmark |
|
|
| A consolidated, reproducible German retrieval benchmark. v0 ships the |
| **retrieval** task type across 2 configs; reranking / STS / clustering |
| follow. Loaded via, e.g., |
| `load_dataset("mischeiwiller/mteb-de", "germandpr-queries")` (BEIR/MTEB layout: each task = |
| `<config>-corpus` / `-queries` / `-qrels` [ + `-hard_negatives`]). |
|
|
| ## Dataset Summary |
|
|
| - **`germandpr`** — German open-domain QA passage retrieval (deepset GermanDPR via the CC-BY-4.0 MTEB mirror), re-split train/dev/test by query id (seed 42); the corpus is shared across splits per BEIR/MTEB index semantics. |
| - **`jobs`** — Net-new hard German retrieval: a job title must retrieve the canonical occupation/skills profile of the same posting. Derived from Project-1 official-API job data (no verbatim postings), PII-scrubbed, with mined hard negatives. |
|
|
| ## Configurations |
|
|
| Each retrieval task is published as separate corpus / queries / qrels configs |
| (plus `hard_negatives` where mined), so the index is shared across the |
| train/dev/test query splits — standard BEIR/MTEB retrieval semantics. |
|
|
| ## Provenance & Licensing |
|
|
| All configs are CC-BY-4.0. We publish **derived** fields only — no verbatim, |
| ToS-restricted source text. Source dataset and pinned revision per config: |
|
|
| | Config | Upstream source | Loaded from | Revision | License | |
| |---|---|---|---|---| |
| | `germandpr` | `deepset/germandpr` | `mteb/GermanDPR` | `64a4860e55` | cc-by-4.0 | |
| | `jobs` | `mischeiwiller/german-job-postings` | `mischeiwiller/german-job-postings` | `d49f1e4243` | cc-by-4.0 | |
|
|
| ## Splits |
|
|
| Queries (and their qrels / hard negatives) are partitioned **by query id** into |
| `train` / `dev` / `test` at 0.8 / 0.1 / 0.1 with a fixed seed (42). The corpus is |
| a single shared `corpus` split. |
|
|
| ## Metrics |
|
|
| - `germandpr`: nDCG@10 / MRR@10 |
| - `jobs`: nDCG@10 / MRR@10 |
|
|
| ## Hard-Negative Mining |
|
|
| The `jobs` config ships mined hard negatives. Procedure: encode queries and |
| passages with `intfloat/multilingual-e5-base`@`d128750597` (e5 `query:` / `passage:` |
| prefixes), rank by cosine similarity, take top-10, drop the |
| labelled positive(s), drop candidates within 0.05 of |
| the positive score (false-negative guard), and keep up to |
| 5. Full write-up + spot-audit: see the project |
| `notes/hard-negative-mining.md` and `notes/hard-negative-audit.md`. |
|
|
| ## Limitations |
|
|
| - `germandpr` is from 2021 and small (~1k queries); included for continuity. |
| - `jobs` passages are composed from structured ESCO fields (occupation + skills, |
| region, seniority, KldB) because the upstream `description_derived` is |
| currently unpopulated; ESCO labels are English, making `jobs` a cross-lingual |
| German-title → English-profile task in v0. |
| - Hard negatives are mined automatically and spot-audited, not exhaustively |
| human-verified; residual false negatives are possible. |
|
|
| ## Citation |
|
|
| Derived from [`deepset/germandpr`](https://huggingface.co/datasets/deepset/germandpr) |
| (via the MTEB mirror) and [`mischeiwiller/german-job-postings`](https://huggingface.co/datasets/mischeiwiller/german-job-postings). |
| A canonical Croissant descriptor is auto-served by the Hub at the dataset's |
| `/croissant` endpoint; a generated copy ships as `croissant.jsonld`. |
|
|
