Entity Mention Linker

.gitignore

@@ -108,3 +108,4 @@ venv.bak/
 
 resources/taggers/
 regression_train/
+/doc_build/

flair/class_utils.py

@@ -0,0 +1,19 @@
+import inspect
+from typing import Iterable, Optional, Type, TypeVar
+
+T = TypeVar("T")
+
+
+def get_non_abstract_subclasses(cls: Type[T]) -> Iterable[Type[T]]:
+    for subclass in cls.__subclasses__():
+        yield from get_non_abstract_subclasses(subclass)
+        if inspect.isabstract(subclass):
+            continue
+        yield subclass
+
+
+def get_state_subclass_by_name(cls: Type[T], cls_name: Optional[str]) -> Type[T]:
+    for sub_cls in get_non_abstract_subclasses(cls):
+        if sub_cls.__name__ == cls_name:
+            return sub_cls
+    raise ValueError(f"Could not find any class with name '{cls_name}'")

flair/data.py

@@ -213,10 +213,11 @@ class Label:
     Default value for the score is 1.0.
     """
 
-    def __init__(self, data_point: "DataPoint", value: str, score: float = 1.0) -> None:
+    def __init__(self, data_point: "DataPoint", value: str, score: float = 1.0, **metadata) -> None:
         self._value = value
         self._score = score
         self.data_point: DataPoint = data_point
+        self.metadata = metadata
         super().__init__()
 
     def set_value(self, value: str, score: float = 1.0):
@@ -235,14 +236,14 @@ def to_dict(self):
         return {"value": self.value, "confidence": self.score}
 
     def __str__(self) -> str:
-        return f"{self.data_point.unlabeled_identifier}{flair._arrow}{self._value} ({round(self._score, 4)})"
+        return f"{self.data_point.unlabeled_identifier}{flair._arrow}{self._value}{self.metadata_str} ({round(self._score, 4)})"
 
     @property
     def shortstring(self):
         return f'"{self.data_point.text}"/{self._value}'
 
     def __repr__(self) -> str:
-        return f"'{self.data_point.unlabeled_identifier}'/'{self._value}' ({round(self._score, 4)})"
+        return f"'{self.data_point.unlabeled_identifier}'/'{self._value}'{self.metadata_str} ({round(self._score, 4)})"
 
     def __eq__(self, other):
         return self.value == other.value and self.score == other.score and self.data_point == other.data_point
@@ -253,6 +254,13 @@ def __hash__(self):
     def __lt__(self, other):
         return self.data_point < other.data_point
 
+    @property
+    def metadata_str(self) -> str:
+        if not self.metadata:
+            return ""
+        rep = "/".join(f"{k}={v}" for k, v in self.metadata.items())
+        return f"/{rep}"
+
     @property
     def labeled_identifier(self):
         return f"{self.data_point.unlabeled_identifier}/{self.value}"
@@ -336,16 +344,18 @@ def get_metadata(self, key: str) -> typing.Any:
     def has_metadata(self, key: str) -> bool:
         return key in self._metadata
 
-    def add_label(self, typename: str, value: str, score: float = 1.0):
+    def add_label(self, typename: str, value: str, score: float = 1.0, **metadata):
+        label = Label(self, value, score, **metadata)
+
         if typename not in self.annotation_layers:
-            self.annotation_layers[typename] = [Label(self, value, score)]
+            self.annotation_layers[typename] = [label]
         else:
-            self.annotation_layers[typename].append(Label(self, value, score))
+            self.annotation_layers[typename].append(label)
 
         return self
 
-    def set_label(self, typename: str, value: str, score: float = 1.0):
-        self.annotation_layers[typename] = [Label(self, value, score)]
+    def set_label(self, typename: str, value: str, score: float = 1.0, **metadata):
+        self.annotation_layers[typename] = [Label(self, value, score, **metadata)]
         return self
 
     def remove_labels(self, typename: str):
@@ -375,28 +385,25 @@ def labels(self) -> List[Label]:
     def unlabeled_identifier(self):
         raise NotImplementedError
 
-    def _printout_labels(self, main_label=None, add_score: bool = True):
+    def _printout_labels(self, main_label=None, add_score: bool = True, add_metadata: bool = True):
         all_labels = []
         keys = [main_label] if main_label is not None else self.annotation_layers.keys()
-        if add_score:
-            for key in keys:
-                all_labels.extend(
-                    [
-                        f"{label.value} ({round(label.score, 4)})"
-                        for label in self.get_labels(key)
-                        if label.data_point == self
-                    ]
-                )
-            labels = "; ".join(all_labels)
-            if labels != "":
-                labels = flair._arrow + labels
-        else:
-            for key in keys:
-                all_labels.extend([f"{label.value}" for label in self.get_labels(key) if label.data_point == self])
-            labels = "/".join(all_labels)
-            if labels != "":
-                labels = "/" + labels
-        return labels
+
+        sep = "; " if add_score else "/"
+        sent_sep = flair._arrow if add_score else "/"
+        for key in keys:
+            for label in self.get_labels(key):
+                if label.data_point is not self:
+                    continue
+                value = label.value
+                if add_metadata:
+                    value = f"{value}{label.metadata_str}"
+                if add_score:
+                    value = f"{value} ({label.score:.04f})"
+                all_labels.append(value)
+        if not all_labels:
+            return ""
+        return sent_sep + sep.join(all_labels)
 
     def __str__(self) -> str:
         return self.unlabeled_identifier + self._printout_labels()
@@ -431,6 +438,61 @@ def __len__(self) -> int:
         raise NotImplementedError
 
 
+class EntityCandidate:
+    """A Concept as part of a knowledgebase or ontology."""
+
+    def __init__(
+        self,
+        concept_id: str,
+        concept_name: str,
+        database_name: str,
+        additional_ids: Optional[List[str]] = None,
+        synonyms: Optional[List[str]] = None,
+        description: Optional[str] = None,
+    ):
+        """A Concept as part of a knowledgebase or ontology.
+
+        Args:
+            concept_id: Identifier of the concept from the knowledgebase / ontology
+            concept_name: (Canonical) name of the concept from the knowledgebase / ontology
+            additional_ids: List of additional identifiers for the concept / entity in the KB / ontology
+            database_name: Name of the knowledgebase / ontology
+            synonyms: A list of synonyms for this entry
+            description: A description about the Concept to describe
+        """
+        self.concept_id = concept_id
+        self.concept_name = concept_name
+        self.database_name = database_name
+        self.description = description
+        if additional_ids is None:
+            self.additional_ids = []
+        else:
+            self.additional_ids = additional_ids
+        if synonyms is None:
+            self.synonyms = []
+        else:
+            self.synonyms = synonyms
+
+    def __str__(self) -> str:
+        string = f"EntityLinkingCandidate: {self.database_name}:{self.concept_id} - {self.concept_name}"
+        if self.additional_ids:
+            string += f" - {'|'.join(self.additional_ids)}"
+        return string
+
+    def __repr__(self) -> str:
+        return str(self)
+
+    def to_dict(self) -> Dict[str, typing.Any]:
+        return {
+            "concept_id": self.concept_id,
+            "concept_name": self.concept_name,
+            "database_name": self.database_name,
+            "additional_ids": self.additional_ids,
+            "synonyms": self.synonyms,
+            "description": self.description,
+        }
+
+
 DT = typing.TypeVar("DT", bound=DataPoint)
 DT2 = typing.TypeVar("DT2", bound=DataPoint)
 
@@ -440,18 +502,18 @@ def __init__(self, sentence) -> None:
         super().__init__()
         self.sentence: Sentence = sentence
 
-    def add_label(self, typename: str, value: str, score: float = 1.0):
-        super().add_label(typename, value, score)
-        self.sentence.annotation_layers.setdefault(typename, []).append(Label(self, value, score))
+    def add_label(self, typename: str, value: str, score: float = 1.0, **metadata):
+        super().add_label(typename, value, score, **metadata)
+        self.sentence.annotation_layers.setdefault(typename, []).append(Label(self, value, score, **metadata))
 
-    def set_label(self, typename: str, value: str, score: float = 1.0):
+    def set_label(self, typename: str, value: str, score: float = 1.0, **metadata):
         if len(self.annotation_layers.get(typename, [])) > 0:
             # First we remove any existing labels for this PartOfSentence in self.sentence
             self.sentence.annotation_layers[typename] = [
                 label for label in self.sentence.annotation_layers.get(typename, []) if label.data_point != self
             ]
-        self.sentence.annotation_layers.setdefault(typename, []).append(Label(self, value, score))
-        super().set_label(typename, value, score)
+        self.sentence.annotation_layers.setdefault(typename, []).append(Label(self, value, score, **metadata))
+        super().set_label(typename, value, score, **metadata)
         return self
 
     def remove_labels(self, typename: str):
@@ -537,21 +599,21 @@ def __len__(self) -> int:
     def __repr__(self) -> str:
         return self.__str__()
 
-    def add_label(self, typename: str, value: str, score: float = 1.0):
+    def add_label(self, typename: str, value: str, score: float = 1.0, **metadata):
         # The Token is a special _PartOfSentence in that it may be initialized without a Sentence.
         # therefore, labels get added only to the Sentence if it exists
         if self.sentence:
-            super().add_label(typename=typename, value=value, score=score)
+            super().add_label(typename=typename, value=value, score=score, **metadata)
         else:
-            DataPoint.add_label(self, typename=typename, value=value, score=score)
+            DataPoint.add_label(self, typename=typename, value=value, score=score, **metadata)
 
-    def set_label(self, typename: str, value: str, score: float = 1.0):
+    def set_label(self, typename: str, value: str, score: float = 1.0, **metadata):
         # The Token is a special _PartOfSentence in that it may be initialized without a Sentence.
         # Therefore, labels get set only to the Sentence if it exists
         if self.sentence:
-            super().set_label(typename=typename, value=value, score=score)
+            super().set_label(typename=typename, value=value, score=score, **metadata)
         else:
-            DataPoint.set_label(self, typename=typename, value=value, score=score)
+            DataPoint.set_label(self, typename=typename, value=value, score=score, **metadata)
 
     def to_dict(self, tag_type: Optional[str] = None):
         return {

flair/datasets/__init__.py

@@ -133,6 +133,10 @@
 # word sense disambiguation
 # Expose all entity linking datasets
 from .entity_linking import (
+    CTD_CHEMICALS_DICTIONARY,
+    CTD_DISEASES_DICTIONARY,
+    NCBI_GENE_HUMAN_DICTIONARY,
+    NCBI_TAXONOMY_DICTIONARY,
     NEL_ENGLISH_AIDA,
     NEL_ENGLISH_AQUAINT,
     NEL_ENGLISH_IITB,
@@ -147,6 +151,8 @@
     WSD_UFSAC,
     WSD_WORDNET_GLOSS_TAGGED,
     ZELDA,
+    EntityLinkingDictionary,
+    HunerEntityLinkingDictionary,
 )
 
 # Expose all relation extraction datasets
@@ -315,6 +321,7 @@
     "SentenceDataset",
     "MongoDataset",
     "StringDataset",
+    "EntityLinkingDictionary",
     "AGNEWS",
     "ANAT_EM",
     "AZDZ",
@@ -342,6 +349,7 @@
     "FSU",
     "GELLUS",
     "GPRO",
+    "HunerEntityLinkingDictionary",
     "HUNER_CELL_LINE",
     "HUNER_CELL_LINE_CELL_FINDER",
     "HUNER_CELL_LINE_CLL",
@@ -390,6 +398,10 @@
     "LINNEAUS",
     "LOCTEXT",
     "MIRNA",
+    "NCBI_GENE_HUMAN_DICTIONARY",
+    "NCBI_TAXONOMY_DICTIONARY",
+    "CTD_DISEASES_DICTIONARY",
+    "CTD_CHEMICALS_DICTIONARY",
     "NCBI_DISEASE",
     "ONTONOTES",
     "OSIRIS",