feat: add new ranking tasks for melo

CONTRIBUTING.md

@@ -181,10 +181,10 @@ class MyCustomRankingTask(RankingTask):
         """Override default metrics if needed"""
         return ["map", "mrr", "recall@5", "recall@10"]
 
-    def load_monolingual_data(self, split: DatasetSplit, language: Language) -> RankingDataset:
+    def load_dataset(self, dataset_id: str, split: DatasetSplit) -> RankingDataset:
         """
-        Load dataset for a specific language and split.
-        
+        Load dataset for a specific dataset ID and split.
+
         Returns:
             RankingDataset with query_texts, target_indices, and target_space
         """
@@ -196,12 +196,12 @@ class MyCustomRankingTask(RankingTask):
             [0, 2],  # Software Engineer -> Python, SQL
             [0, 1],  # Data Scientist -> Python, Machine Learning
         ]
-        
+
         return RankingDataset(
             query_texts=query_texts,
             target_indices=target_indices,
             target_space=target_space,
-            language=language,
+            dataset_id=dataset_id,
         )
 ```
 

README.md

@@ -112,7 +112,7 @@ Feel free to make a PR to add your models & tasks to the official package! See [
 
 ### Checkpointing & Resuming
 
-WorkRB automatically saves result checkpoints after each task completion in a specific language.
+WorkRB automatically saves result checkpoints after each dataset evaluation within a task.
 
 **Automatic Resuming** - Simply rerun with the same `output_folder`:
 
@@ -207,12 +207,14 @@ lang_result_ci = summary["mean_per_language/en/f1_macro/ci_margin"]
 | Job to Skills WorkBench | multi_label | 3039 queries x 13939 targets | 28 |
 | Job Title Similarity | multi_label | 105 queries x 2619 targets | 11 |
 | Job Normalization | single_label | 15463 queries x 2942 targets | 28 |
+| Job Normalization MELO | multi_label | 633 queries x 33813 targets | 21 |
 | Skill to Job WorkBench | multi_label | 13492 queries x 3039 targets | 28 |
 | Skill Extraction House | multi_label | 262 queries x 13891 targets | 28 |
 | Skill Extraction Tech | multi_label | 338 queries x 13891 targets | 28 |
 | Skill Extraction SkillSkape | multi_label | 1191 queries x 13891 targets | 28 |
 | Skill Similarity SkillMatch-1K | single_label | 900 queries x 2648 targets | 1 |
 | Skill Normalization ESCO | multi_label | 72008 queries x 13939 targets | 28 |
+| Skill Normalization MELS | multi_label | 1722 queries x 19466 targets | 5 |
 | **Classification**
 | Job-Skill Classification | multi_label | 3039 samples, 13939 classes | 28  |
 

examples/custom_model_example.py

@@ -9,6 +9,7 @@
 import torch
 from sentence_transformers import SentenceTransformer
 
+import workrb
 from workrb.models.base import ModelInterface
 from workrb.registry import register_model
 from workrb.types import ModelInputType
@@ -47,10 +48,12 @@ def __init__(
         self.encoder.to(device)
         self.encoder.eval()
 
+    @property
     def name(self) -> str:
         """Return the unique name of this model."""
         return f"MyCustomModel-{self.base_model_name.split('/')[-1]}"
 
+    @property
     def description(self) -> str:
         """Return the description of this model."""
         return "A custom model that demonstrates WorkRB extensibility"

examples/custom_task_example.py

@@ -6,6 +6,7 @@
 and implement the required abstract methods.
 """
 
+import workrb
 from workrb.registry import register_task
 from workrb.tasks.abstract.base import DatasetSplit, LabelType, Language
 from workrb.tasks.abstract.ranking_base import RankingDataset, RankingTaskGroup
@@ -78,14 +79,14 @@ def supported_target_languages(self) -> list[Language]:
         """Supported target languages are English."""
         return [Language.EN]
 
-    def load_monolingual_data(self, language: Language, split: DatasetSplit) -> RankingDataset:
+    def load_dataset(self, dataset_id: str, split: DatasetSplit) -> RankingDataset:
         """
         Load data for evaluation.
 
         This method must return a RankingDataset.
 
         Args:
-            language: Language code (e.g., "en", "de", "fr")
+            dataset_id: Dataset identifier (e.g., "en", "de", "fr" for language-based tasks)
             split: Data split ("test", "validation", "train")
 
         Returns
@@ -121,7 +122,7 @@ def load_monolingual_data(self, language: Language, split: DatasetSplit) -> Rank
             query_texts=queries,
             target_indices=labels,
             target_space=targets,
-            language=language,
+            dataset_id=dataset_id,
         )
 
     # Note: The evaluate() method is inherited from RankingTask and doesn't need

examples/run_multiple_models.py

@@ -2,6 +2,8 @@
 Reproduce benchmark results.
 """
 
+import workrb
+
 if __name__ == "__main__":
     # 1. Setup model and tasks
     models = [

src/workrb/config.py

@@ -205,24 +205,24 @@ def get_pending_work(
         self,
         results: BenchmarkResults | None,
         tasks: Sequence[Task],
-    ) -> list[tuple]:
+    ) -> list[tuple[Task, str]]:
         """Determine what work still needs to be done.
 
-        Work is defined as a (task, language) combination that is not completed.
+        Work is defined as a (task, dataset_id) combination that is not completed.
         """
         pending_work = []
         for task in tasks:
-            for language in task.languages:
-                # Successful completed (task, language) combination
+            for dataset_id in task.dataset_ids:
+                # Successful completed (task, dataset_id) combination
                 if (
                     results is not None
                     and task.name in results.task_results
-                    and language in results.task_results[task.name].language_results
+                    and dataset_id in results.task_results[task.name].language_results
                 ):
                     continue
 
                 # Add to pending work
-                pending_work.append((task, language))
+                pending_work.append((task, dataset_id))
 
         return pending_work
 

src/workrb/results.py

@@ -22,20 +22,24 @@ class TaskResultMetadata(BaseModel):
 class MetricsResult(BaseModel):
     """Metric results for a single evaluation run.
 
-    In the becnhmark, this is a single evaluation run for a single language.
+    In the benchmark, this is a single evaluation run for a single dataset.
     """
 
     evaluation_time: float = Field(ge=0)
     metrics_dict: dict[str, Any] = Field(default_factory=dict)
     """ Dictionary of metric names to their computed values. """
+    language: str | None = Field(
+        default=None,
+        description="Language code if this is a monolingual dataset, None for cross-language datasets.",
+    )
 
 
 class TaskResults(BaseModel):
     """Results for a task."""
 
     metadata: TaskResultMetadata
-    language_results: dict[str, MetricsResult]  # language -> results
-    """ Dictionary of language codes to their computed results. """
+    language_results: dict[str, MetricsResult]  # dataset_id -> results
+    """Dictionary of dataset IDs to their computed results."""
 
 
 class BenchmarkMetadata(BaseModel):
@@ -292,15 +296,20 @@ def _aggregate_per_language(
     ) -> dict[ResultTagString, float]:
         """Aggregate results per language.
 
-        Collects language-specific results over all tasks, and aggregates all availble results.
+        Collects results for monolingual datasets and aggregates by language across all tasks.
+        Cross-language datasets (where language is None) are excluded from this aggregation.
         Results may be imbalanced if tasks support different languages.
         """
-        # Collect metric values per task
+        # Collect metric values per language
         raw_results = defaultdict(list)
         for task_result in self.task_results.values():
-            for language, metrics_result in task_result.language_results.items():
+            for metrics_result in task_result.language_results.values():
+                # Skip cross-language datasets
+                if metrics_result.language is None:
+                    continue
+
                 for metric_name, metric_value in metrics_result.metrics_dict.items():
-                    raw_results[(language, metric_name)].append(metric_value)
+                    raw_results[(metrics_result.language, metric_name)].append(metric_value)
 
         # Compute stats
         results = {}
@@ -309,7 +318,10 @@ def _aggregate_per_language(
             for agg in aggregations:
                 assert agg in stats, f"Aggregation {agg} not found in stats: {stats.keys()}"
                 tag = ResultTagString(
-                    name=tag_name, metric_name=metric_name, aggregation=agg, grouping_name=language
+                    name=tag_name,
+                    metric_name=metric_name,
+                    aggregation=agg,
+                    grouping_name=language,
                 )
                 results[tag] = stats[agg]
         return results
@@ -340,7 +352,7 @@ def _get_flat_dataframe(self) -> pd.DataFrame:
         """Get flat dataframe of the benchmark results with each metric value as a separate row."""
         data = []
         for task_name, task_result in self.task_results.items():
-            for language, metrics_result in task_result.language_results.items():
+            for dataset_id, metrics_result in task_result.language_results.items():
                 for metric_name, metric_value in metrics_result.metrics_dict.items():
                     data.append(
                         {
@@ -349,7 +361,7 @@ def _get_flat_dataframe(self) -> pd.DataFrame:
                             "task_type": str(task_result.metadata.task_type),
                             # "task_label_type": str(task_result.metadata.label_type),
                             # "task_split": str(task_result.metadata.split),
-                            "task_language": str(language),
+                            "dataset_id": str(dataset_id),
                             "metric_name": str(metric_name),
                             "metric_value": float(metric_value),
                         }

src/workrb/run.py

@@ -22,7 +22,7 @@
     TaskResultMetadata,
     TaskResults,
 )
-from workrb.tasks.abstract.base import Language, Task
+from workrb.tasks.abstract.base import Task
 
 logger = logging.getLogger(__name__)
 setup_logger(__name__, verbose=False)
@@ -80,10 +80,10 @@ def evaluate(
 
     # Group pending work by task for better organization
     work_by_task = {}
-    for task, language in pending_work:
+    for task, dataset_id in pending_work:
         if task.name not in work_by_task:
-            work_by_task[task.name] = {"task": task, "languages": []}
-        work_by_task[task.name]["languages"].append(language)
+            work_by_task[task.name] = {"task": task, "dataset_ids": []}
+        work_by_task[task.name]["dataset_ids"].append(dataset_id)
 
     # Run pending work
     start_time_benchmark = time.time()
@@ -101,7 +101,7 @@ def evaluate(
     # Update metadata
     results.metadata.total_evaluation_time = time.time() - start_time_benchmark
     results.metadata.resumed_from_checkpoint = len(pending_work) < sum(
-        len(task.languages) for task in tasks
+        len(task.dataset_ids) for task in tasks
     )
 
     # Save config and results
@@ -206,11 +206,11 @@ def get_tasks_overview(tasks: Sequence[Task]) -> str:
 
         lines.append(f"{task_name:<40} {group:<20} {task_languages:<20}")
 
-        # Add size one-liner for each language
-        for lang in task.languages:
-            size_info = task.get_size_oneliner(lang)
+        # Add size one-liner for each dataset
+        for dataset_id in task.dataset_ids:
+            size_info = task.get_size_oneliner(dataset_id)
             if size_info:
-                lines.append(f"  └─ {lang}: {size_info}")
+                lines.append(f"  └─ {dataset_id}: {size_info}")
 
     lines.append("-" * 80)
 
@@ -227,7 +227,7 @@ def _get_all_languages(tasks: Sequence[Task]) -> list[str]:
 
 def _get_total_evaluations(tasks: Sequence[Task]) -> int:
     """Get the total number of evaluations."""
-    return sum(len(task.languages) for task in tasks)
+    return sum(len(task.dataset_ids) for task in tasks)
 
 
 def _init_checkpointing(
@@ -307,12 +307,12 @@ def _run_pending_work(
     run_idx = results.get_num_evaluation_results()  # Already completed evaluations
     for work_info in work_by_task.values():
         task: Task = work_info["task"]
-        pending_languages: list[str] = work_info["languages"]
+        pending_dataset_ids: list[str] = work_info["dataset_ids"]
 
         logger.info(f"{'=' * 60}")
         logger.info(f"Evaluating task: {task.name}")
         logger.info(f"Completed {run_idx} / {_get_total_evaluations(tasks)} evaluations. ")
-        logger.info(f"Pending languages for this task: {len(pending_languages)}")
+        logger.info(f"Pending datasets for this task: {len(pending_dataset_ids)}")
 
         # Initialize task results if not exists
         if task.name not in results.task_results:
@@ -327,11 +327,9 @@ def _run_pending_work(
                 language_results={},
             )
 
-        # Evaluate pending languages
-        for language in pending_languages:
-            logger.info(
-                f"* Running language: {language} ({task.get_size_oneliner(Language(language))})"
-            )
+        # Evaluate pending datasets
+        for dataset_id in pending_dataset_ids:
+            logger.info(f"* Running dataset: {dataset_id} ({task.get_size_oneliner(dataset_id)})")
 
             # Get metrics for this task
             task_metrics = None
@@ -340,15 +338,17 @@ def _run_pending_work(
 
             try:
                 start_time_eval = time.time()
-                lang_results: dict[str, float] = task.evaluate(
-                    model=model, metrics=task_metrics, language=Language(language)
+                dataset_results: dict[str, float] = task.evaluate(
+                    model=model, metrics=task_metrics, dataset_id=dataset_id
                 )
                 evaluation_time = time.time() - start_time_eval
 
                 # Store results
-                results.task_results[task.name].language_results[language] = MetricsResult(
+                dataset_language = task.get_dataset_language(dataset_id)
+                results.task_results[task.name].language_results[dataset_id] = MetricsResult(
                     evaluation_time=evaluation_time,
-                    metrics_dict=lang_results,
+                    metrics_dict=dataset_results,
+                    language=dataset_language.value if dataset_language else None,
                 )
 
                 # Save incremental results to checkpoint
@@ -357,7 +357,7 @@ def _run_pending_work(
 
                 # Show key metrics
                 key_metric = task.default_metrics[0]
-                logger.info(f"\t{key_metric}: {lang_results[key_metric]:.3f}")
+                logger.info(f"\t{key_metric}: {dataset_results[key_metric]:.3f}")
                 run_idx += 1
             except Exception as e:
                 logger.error(f"Error: {e}")

src/workrb/tasks/__init__.py

@@ -11,6 +11,8 @@
 from .ranking.job2skill import ESCOJob2SkillRanking
 from .ranking.job_similarity import JobTitleSimilarityRanking
 from .ranking.jobnorm import JobBERTJobNormRanking
+from .ranking.melo import MELORanking
+from .ranking.mels import MELSRanking
 from .ranking.skill2job import ESCOSkill2JobRanking
 from .ranking.skill_extraction import (
     HouseSkillExtractRanking,
@@ -35,6 +37,8 @@
     "ESCOSkillNormRanking",
     "JobBERTJobNormRanking",
     "JobTitleSimilarityRanking",
+    "MELORanking",
+    "MELSRanking",
     "HouseSkillExtractRanking",
     "TechSkillExtractRanking",
     "SkillSkapeExtractRanking",