rsync algorithm
E286256
data transfer algorithm
delta encoding algorithm
file synchronization algorithm
network protocol algorithm
The rsync algorithm is a file synchronization and transfer method that efficiently updates files over a network by sending only the differences between source and destination.
All labels observed (1)
| Label | Occurrences |
|---|---|
| rsync algorithm canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2647719 — 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: rsync algorithm Context triple: [Andrew Tridgell, knownFor, rsync algorithm]
-
A.
SFTP (SSH File Transfer Protocol)
SFTP (SSH File Transfer Protocol) is a network protocol that provides encrypted file transfer and management over a secure SSH connection.
-
B.
Marzullo's algorithm
Marzullo's algorithm is a method for selecting the most likely correct time interval from multiple, possibly conflicting time sources, commonly used in clock synchronization systems.
-
C.
SSH Compression Algorithm Names
SSH Compression Algorithm Names is the IANA-maintained registry that lists and standardizes the identifiers for compression methods used within the SSH protocol.
-
D.
Berlekamp–Massey algorithm
The Berlekamp–Massey algorithm is a key algorithm in coding theory and cryptography used to efficiently determine the shortest linear feedback shift register that generates a given binary sequence.
-
E.
Difference Engine
The Difference Engine is an early mechanical calculator designed by Charles Babbage to automatically compute and tabulate polynomial functions, often regarded as a precursor to modern computers.
- 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: rsync algorithm Target entity description: The rsync algorithm is a file synchronization and transfer method that efficiently updates files over a network by sending only the differences between source and destination.
-
A.
SFTP (SSH File Transfer Protocol)
SFTP (SSH File Transfer Protocol) is a network protocol that provides encrypted file transfer and management over a secure SSH connection.
-
B.
Marzullo's algorithm
Marzullo's algorithm is a method for selecting the most likely correct time interval from multiple, possibly conflicting time sources, commonly used in clock synchronization systems.
-
C.
SSH Compression Algorithm Names
SSH Compression Algorithm Names is the IANA-maintained registry that lists and standardizes the identifiers for compression methods used within the SSH protocol.
-
D.
Berlekamp–Massey algorithm
The Berlekamp–Massey algorithm is a key algorithm in coding theory and cryptography used to efficiently determine the shortest linear feedback shift register that generates a given binary sequence.
-
E.
Difference Engine
The Difference Engine is an early mechanical calculator designed by Charles Babbage to automatically compute and tabulate polynomial functions, often regarded as a precursor to modern computers.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
data transfer algorithm
ⓘ
delta encoding algorithm ⓘ file synchronization algorithm ⓘ network protocol algorithm ⓘ |
| advantage |
avoids retransmitting unchanged data
ⓘ
can synchronize large files efficiently ⓘ efficient over low-bandwidth or high-latency links ⓘ reduces data transferred compared to copying entire files ⓘ |
| checksumType |
rolling weak checksum
ⓘ
strong cryptographic checksum ⓘ |
| comparisonMethod | checksum-based block matching ⓘ |
| dataFlow |
receiver sends block signatures to sender
ⓘ
sender computes matches and sends only unmatched data blocks ⓘ |
| describedIn | rsync technical report by Andrew Tridgell and Paul Mackerras ⓘ |
| developedBy |
Andrew Tridgell
ⓘ
Paul Mackerras ⓘ |
| influenced | subsequent synchronization protocols and tools ⓘ |
| inspired |
rsync
ⓘ
surface form:
rsync software utility
|
| keyFeature |
minimizes network bandwidth usage
ⓘ
supports incremental updates ⓘ supports resuming interrupted transfers ⓘ transfers only differences between source and destination files ⓘ uses rolling checksums ⓘ uses strong checksums for verification ⓘ |
| limitation |
checksum computation can be CPU-intensive for very large datasets
ⓘ
requires both sides to compute checksums ⓘ |
| networkModel | client-server ⓘ |
| operatesOn |
directories
ⓘ
file blocks ⓘ files ⓘ |
| optimizationGoal |
minimize bandwidth usage
ⓘ
minimize transfer time for partially changed files ⓘ |
| primaryPurpose |
efficient file synchronization
ⓘ
efficient file transfer over networks ⓘ |
| publicationYear | 1996 ⓘ |
| relatedTo |
delta compression
ⓘ
file mirroring ⓘ remote differential compression ⓘ |
| typicalBlockSize | 700 to 2000 bytes (configurable) ⓘ |
| usedIn |
backup systems
ⓘ
incremental file backup tools ⓘ mirroring services ⓘ remote file synchronization tools ⓘ rsync network protocol ⓘ |
| usesConcept |
MD4-based strong checksum (in original design)
ⓘ
block-based file comparison ⓘ delta transmission ⓘ rolling checksum ⓘ |
| verification | strong checksum comparison on receiver side ⓘ |
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: rsync algorithm Description of subject: The rsync algorithm is a file synchronization and transfer method that efficiently updates files over a network by sending only the differences between source and destination.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Andrew Tridgell