| ---
|
| language:
|
| - el
|
| - en
|
| - bg
|
| license: cc-by-4.0
|
| pretty_name: Multilingual Hierarchical Points of Interest (POI) with Portal Descriptions
|
| task_categories:
|
| - text-classification
|
| - tabular-classification
|
| - translation
|
| tags:
|
| - geospatial
|
| - multilingual
|
| - poi
|
| - travel
|
| - regional-hierarchy
|
| - greece
|
| - bulgaria
|
| - text-mining
|
| dataset_info:
|
| config_name: default
|
| features:
|
| - name: id
|
| dtype: int64
|
| - name: gr_name
|
| dtype: string
|
| - name: en_name
|
| dtype: string
|
| - name: bg_name
|
| dtype: string
|
| - name: poi_description_el
|
| dtype: string
|
| - name: poi_description_en
|
| dtype: string
|
| - name: poi_description_bg
|
| dtype: string
|
| - name: category_id
|
| dtype: int64
|
| - name: gr_categoryname
|
| dtype: string
|
| - name: en_categoryname
|
| dtype: string
|
| - name: bg_categoryname
|
| dtype: string
|
| - name: area_id
|
| dtype: int64
|
| - name: gr_areaname
|
| dtype: string
|
| - name: en_areaname
|
| dtype: string
|
| - name: bg_areaname
|
| dtype: string
|
| - name: calculated_root_area_id
|
| dtype: int64
|
| - name: gr_root_areaname
|
| dtype: string
|
| - name: en_root_areaname
|
| dtype: string
|
| - name: bg_root_areaname
|
| dtype: string
|
| - name: root_area_id
|
| dtype: int64
|
| - name: review_status
|
| dtype: int64
|
| - name: deleted
|
| dtype: bool
|
| - name: modified
|
| dtype: string
|
| - name: main_image
|
| dtype: string
|
| - name: coord_x
|
| dtype: string
|
| - name: coord_y
|
| dtype: string
|
| ---
|
|
|
| # Multilingual Hierarchical Points of Interest (POI) with Portal Descriptions
|
|
|
| ## Dataset Summary
|
|
|
| This dataset contains fully localized Points of Interest (POIs) enriched with parallel multi-lingual text descriptions, structural operational categories, and deep geographic hierarchical assignments. It provides complete string translations across **Greek (EL)**, **English (EN)**, and **Bulgarian (BG)**.
|
|
|
| Beyond core structural indexing, this dataset includes long-form **portal descriptions** (`portal_description`) for each language. Additionally, each POI maps dynamically back to its ultimate high-level geographic root node via pre-calculated tree-path extractions. This makes it an ideal reference set for cross-lingual semantic search, localized embedding training, natural language processing (NLP) tasks in regional languages, and complex hierarchical classification.
|
|
|
| ## Supported Tasks
|
|
|
| * **Cross-Lingual Information Retrieval & NLP:** Training dense embedding models or semantic search indexers to align multi-lingual text metadata across Greek, Latin, and Cyrillic scripts.
|
| * **Machine Translation / Parallel Text Alignment:** Leveraging the corresponding long-form `poi_description_*` fields for domain-specific low-resource language matching or tuning.
|
| * **Hierarchical Multiclass Classification:** Training classifiers to resolve categorical or spatial distributions based on structural text narratives.
|
|
|
| ## Languages
|
|
|
| The schema exposes full localized properties across three target sets:
|
| * **Greek** (`lang_id=1`, `_el` or `gr_` prefix)
|
| * **English** (`lang_id=2`, `_en` or `en_` prefix)
|
| * **Bulgarian** (`lang_id=4`, `_bg` or `bg_` prefix)
|
|
|
| ---
|
|
|
| ## Dataset Structure
|
|
|
| ### Data Instance Example
|
|
|
| This is an exhaustive representation of a single row returned by the dataset query, including all calculated properties, localized joins, and base fields unpacked from `pois.*`:
|
|
|
| ```json
|
| {
|
| "id": 1024,
|
| "gr_name": "Ακρόπολη Αθηνών",
|
| "en_name": "Acropolis of Athens",
|
| "bg_name": "Акропол",
|
| "poi_description_el": "Ο ιερός βράχος της Ακρόπολης φιλοξενεί τα σπουδαιότερα μνημεία της κλασικής αρχαιότητας, συμπεριλαμβανομένου του Παρθενώνα...",
|
| "poi_description_en": "The ancient citadel located on a rocky outcrop above the city of Athens, containing the remains of several ancient buildings of great architectural significance...",
|
| "poi_description_bg": "Древният акропол, разположен на скалист хълм над град Атина, съдържащ останките на няколко антични сгради с голямо архитектурно значение...",
|
| "category_id": 45,
|
| "gr_categoryname": "Αρχαιολογικοί Χώροι",
|
| "en_categoryname": "Archaeological Sites",
|
| "bg_categoryname": "Археологически обекти",
|
| "area_id": 12,
|
| "gr_areaname": "Πλάκα",
|
| "en_areaname": "Plaka",
|
| "bg_areaname": "Плака",
|
| "calculated_root_area_id": 1,
|
| "gr_root_areaname": "Αττική",
|
| "en_root_areaname": "Attica",
|
| "bg_root_areaname": "Атика",
|
| "root_area_id": 1,
|
| "review_status": 4,
|
| "deleted": false,
|
| "modified": "2026-07-17T12:00:00Z",
|
| "main_image": "uploads/images/pois/acropolis.jpg",
|
| "coord_x": "23.7257",
|
| "coord_y": "37.9715"
|
| } |
