Logical Data Structure (LDS)
E1043720
Logical Data Structure (LDS) is the standardized data model defined by the ICAO for organizing and encoding personal and biometric information stored in electronic passports and similar machine-readable travel documents.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Logical Data Structure (LDS) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13490528 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Logical Data Structure (LDS) Context triple: [ePassport, usesStandard, Logical Data Structure (LDS)]
-
A.
LSM
LSM is an undergraduate dual-degree program at the University of Pennsylvania that integrates rigorous training in life sciences with business and management education.
-
B.
Darwin Information Typing Architecture
Darwin Information Typing Architecture (DITA) is an XML-based, topic-oriented architecture and standard for authoring, organizing, and publishing technical content in a modular and reusable way.
-
C.
Log-Structured Merge-Tree
A Log-Structured Merge-Tree (LSM-tree) is a write-optimized data structure that organizes data in sequential logs and periodically merges them to provide efficient writes and good read performance for key-value storage systems.
-
D.
Data Control Language
Data Control Language (DCL) is a subset of SQL used to define and manage access permissions and security controls on database objects.
-
E.
External Data Representation
External Data Representation (XDR) is a standard, platform-independent data serialization format used to encode and decode data structures for network communication.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Logical Data Structure (LDS) Target entity description: Logical Data Structure (LDS) is the standardized data model defined by the ICAO for organizing and encoding personal and biometric information stored in electronic passports and similar machine-readable travel documents.
-
A.
LSM
LSM is an undergraduate dual-degree program at the University of Pennsylvania that integrates rigorous training in life sciences with business and management education.
-
B.
Darwin Information Typing Architecture
Darwin Information Typing Architecture (DITA) is an XML-based, topic-oriented architecture and standard for authoring, organizing, and publishing technical content in a modular and reusable way.
-
C.
Log-Structured Merge-Tree
A Log-Structured Merge-Tree (LSM-tree) is a write-optimized data structure that organizes data in sequential logs and periodically merges them to provide efficient writes and good read performance for key-value storage systems.
-
D.
Data Control Language
Data Control Language (DCL) is a subset of SQL used to define and manage access permissions and security controls on database objects.
-
E.
External Data Representation
External Data Representation (XDR) is a standard, platform-independent data serialization format used to encode and decode data structures for network communication.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
ICAO standard
ⓘ
data model ⓘ standard ⓘ |
| abbreviation | LDS ⓘ |
| appliesTo |
eMRTD
ⓘ
electronic passports ⓘ machine-readable travel documents ⓘ |
| constrains | layout of data groups on ePassport chip ⓘ |
| dataFormat |
binary
ⓘ
tag-length-value structure ⓘ |
| definedBy |
ICAO
ⓘ
linked to:
International Civil Aviation Organization
International Civil Aviation Organization ⓘ |
| domain |
identity documents
ⓘ
travel documents ⓘ |
| encodes |
biographical data
ⓘ
biometric data ⓘ document information ⓘ security information ⓘ |
| ensures |
consistent encoding of biometric data
ⓘ
consistent encoding of personal data ⓘ |
| hasComponent |
Data Group 1
ⓘ
Data Group 10 ⓘ Data Group 11 ⓘ Data Group 12 ⓘ Data Group 13 ⓘ Data Group 14 ⓘ Data Group 15 ⓘ Data Group 16 ⓘ Data Group 2 ⓘ Data Group 3 ⓘ Data Group 4 ⓘ Data Group 5 ⓘ Data Group 6 ⓘ Data Group 7 ⓘ Data Group 8 ⓘ Data Group 9 ⓘ data group ⓘ |
| introducedFor | standardization of ePassport data storage ⓘ |
| purpose |
encoding data in machine-readable travel documents
ⓘ
organizing biometric information in electronic passports ⓘ organizing personal information in electronic passports ⓘ |
| relatedTo |
ePassport security
ⓘ
machine readable zone ⓘ public key infrastructure ⓘ |
| standardizedIn | ICAO Doc 9303 ⓘ |
| supports |
automated border control systems
ⓘ
interoperability between states ⓘ machine-assisted identity verification ⓘ |
| usedIn |
contactless integrated circuits in travel documents
ⓘ
ePassport chips ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Logical Data Structure (LDS) Description of subject: Logical Data Structure (LDS) is the standardized data model defined by the ICAO for organizing and encoding personal and biometric information stored in electronic passports and similar machine-readable travel documents.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
ePassports