Triple

T20221705
Position Surface form Disambiguated ID Type / Status
Subject SC-FDMA E495270 entity
Predicate basedOn P98 FINISHED
Object DFT-spread OFDM
DFT-spread OFDM is a multicarrier modulation technique that combines single-carrier transmission with OFDM to achieve lower peak-to-average power ratio while retaining frequency-domain equalization benefits.
E495270 NE FINISHED

How this triple was built (4 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: DFT-spread OFDM | Statement: [SC-FDMA, basedOn, DFT-spread OFDM]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: DFT-spread OFDM
Context triple: [SC-FDMA, basedOn, DFT-spread OFDM]
  • A. OFDM
    OFDM (Orthogonal Frequency-Division Multiplexing) is a digital multi-carrier modulation technique that splits data across many closely spaced orthogonal subcarriers to improve robustness against interference and multipath fading in wireless and wired communication systems.
  • B. OFDMA
    OFDMA (Orthogonal Frequency Division Multiple Access) is a multi-user version of OFDM that divides subcarriers among multiple users to enable efficient, high-capacity wireless communication in systems like LTE and WiMAX.
  • C. SC-FDMA
    SC-FDMA (Single-Carrier Frequency Division Multiple Access) is a multi-carrier transmission scheme used primarily in LTE uplink that combines single-carrier characteristics with frequency-domain equalization to achieve lower peak-to-average power ratio than OFDM.
  • D. MIMO
    MIMO (Multiple-Input Multiple-Output) is a wireless communication technique that uses multiple transmitting and receiving antennas to significantly increase data throughput and link reliability.
  • E. Frequency Division Multiple Access
    Frequency Division Multiple Access (FDMA) is a channel access method in which the available bandwidth is divided into distinct frequency bands so multiple users can transmit simultaneously on different frequencies.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: DFT-spread OFDM
Triple: [SC-FDMA, basedOn, DFT-spread OFDM]
Generated description
DFT-spread OFDM is a multicarrier modulation technique that combines single-carrier transmission with OFDM to achieve lower peak-to-average power ratio while retaining frequency-domain equalization benefits.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: DFT-spread OFDM
Target entity description: DFT-spread OFDM is a multicarrier modulation technique that combines single-carrier transmission with OFDM to achieve lower peak-to-average power ratio while retaining frequency-domain equalization benefits.
  • A. OFDM
    OFDM (Orthogonal Frequency-Division Multiplexing) is a digital multi-carrier modulation technique that splits data across many closely spaced orthogonal subcarriers to improve robustness against interference and multipath fading in wireless and wired communication systems.
  • B. OFDMA
    OFDMA (Orthogonal Frequency Division Multiple Access) is a multi-user version of OFDM that divides subcarriers among multiple users to enable efficient, high-capacity wireless communication in systems like LTE and WiMAX.
  • C. SC-FDMA chosen
    SC-FDMA (Single-Carrier Frequency Division Multiple Access) is a multi-carrier transmission scheme used primarily in LTE uplink that combines single-carrier characteristics with frequency-domain equalization to achieve lower peak-to-average power ratio than OFDM.
  • D. MIMO
    MIMO (Multiple-Input Multiple-Output) is a wireless communication technique that uses multiple transmitting and receiving antennas to significantly increase data throughput and link reliability.
  • E. Frequency Division Multiple Access
    Frequency Division Multiple Access (FDMA) is a channel access method in which the available bandwidth is divided into distinct frequency bands so multiple users can transmit simultaneously on different frequencies.
  • F. None of above.

Provenance (5 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69da626cff80819097b530718a7c98b6 completed April 11, 2026, 3:02 p.m.
NER Named-entity recognition batch_69e66fd610f881908fdd22b1f8bd2efc completed April 20, 2026, 6:26 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0843f9c2dc8190836f1a5fe2b97b80 completed May 16, 2026, 10:16 a.m.
NEDg Description generation batch_6a0844a1f6988190bbab91201b2a0d7e completed May 16, 2026, 10:19 a.m.
NED2 Entity disambiguation (via description) batch_6a0845700ec48190bb59acff92e4e616 completed May 16, 2026, 10:22 a.m.
Created at: April 11, 2026, 11:39 p.m.