Pith. sign in

Paper Citation Record · LEDGER

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face?

As of 20 August 2026, this Paper Citation Record lists 33 of 33 outbound references and 0 inbound Pith citation observations for arXiv:2507.20884.

A citation records a reference. It does not transfer a finding from one paper to another.

pith.paper-citation-record.v1
2507.20884 v2

Coverage vector

measured 33 of 33 reference resolution

Typed states for the displayed outbound observations.

Source: paper_references, paper_reference_links, observed 2026-08-06T13:16:02.886228Z

measured 33 of 33 standing notices

One-hop event checks from named stored sources.

Source: scholarly_work_events, retraction_status_cache, observed 2026-08-20T06:33:59.587034+00:00

measured 0 of 0 inbound itemization

Pith citing papers itemized under the disclosed page cap.

Source: paper_references, paper_reference_links

measured 0 of 1 external citation measurements

A source-named dated measurement, never combined with another source.

Source: cited_works

Reference resolution

33 of 33 outbound references displayed

  • verified exact5
  • verified fuzzy0
  • unresolved21
  • parse uncertain0
  • malformed identifier4
  • metadata mismatch3

External citation measurements

No source-named external measurement is stored.

Outbound references

Observation bae4686f-52b9-49c9-9e13-3ddb26fd0237 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 1

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.642779Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.351997Z digest=sha256:3d4f991649edf93a90913c0ab16661d4aa8eb134465c7cec18c99bb4087c473f

Observation b618b4dd-601f-449a-ae42-e57550c30967 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 2

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.634466Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.507852Z digest=sha256:0ab3a9ab5d6e738797f3a31a4832533e2cbdb554064e351ffaaf627b85b3f128

Observation d9b0f9e4-57de-4d06-9c00-ce9b74a76eee · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 3

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.626674Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.597765Z digest=sha256:eeb442c6b64cae98dc56a4a813e6baf389be9a45510e91d84209d3a2856a439a

Observation 8c9532ce-6c3c-4b34-ac42-f06c50fc5d0a · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 4

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.618855Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.693284Z digest=sha256:cbfe2caddd54fef713868b61dd1d4cbbeede81d170084404f6218a8727c1a3b1

Observation 746f8484-aa63-469e-9660-1322b88a8350 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 5

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:00.841623Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:00.841623Z digest=sha256:b497d43d91491726cf4b415804c82e9e8bc1116733e1c5bb7b59e1e769b331eb

Observation 36ffe251-8c50-4063-9381-1b90304ddf30 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 6

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:00.905064Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:00.905064Z digest=sha256:117319860ff685a0c4e834d4a18db6f8560c5dd680f14e40dda785016ea57fc2

Observation fb96c553-846f-4d0a-80d1-643918324e20 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 7

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:00.972466Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:00.972466Z digest=sha256:96c8c7fc06669b2f3309dd702802e4869d6a29d837be5949927e5d7895a402b7

Observation deea07d4-c07f-42e6-8d02-462f65962a6f · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 8

Resolution
malformed identifier
no resolver link, observed 2026-08-06T13:16:01.084131Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.084131Z digest=sha256:247283f3fccdfbdd540325c37a8df2407d15bd49466d413a88b19b213ff4569e

Observation f5c0144c-df04-4102-8db7-ac0491d2d166 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 9

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.611079Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.150837Z digest=sha256:ae5bb368d73993886d26b3e764fa1a3375728e4cc89b003846d4565cfe8318c5

Observation 6223404c-3a04-4d7f-9fc0-06b51a2f0a74 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 10

Resolution
malformed identifier
raw_fallback, observed 2026-08-06T13:16:05.603124Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.238864Z digest=sha256:849628cd1095d364f993bec09910639fe482e58ba7c97dd51643dbcdc698d3d0

Observation 315593c6-7ee3-49f3-9435-c115ef00d40f · outbound

This paper cites The Kinetics Human Action Video Dataset.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? The Kinetics Human Action Video Dataset

Reference 11

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.303726Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.303726Z digest=sha256:91a2b46c9257f243ec76186c5f0c3c30a309bee136f7255175ec4bddac88fbf1

Observation 727599fd-dca4-41f8-a2db-3d8f88c3a004 · outbound

This paper cites Quantitative Survey of the State of the Art in Sign Language Recognition.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Quantitative Survey of the State of the Art in Sign Language Recognition

Reference 12

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.387968Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.387968Z digest=sha256:d58ece2709b6a9ca20909a8f435a1943c8dabb909d97d7108de49b14c96f1c82

Observation 7c3a2828-2d4a-4e9a-a942-99b6a68db976 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 13

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.482622Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.482622Z digest=sha256:a57c79ce6ea15df29df7fc929d8edafa25db48f43a0274bf2490af30c36fa26b

Observation 9f7eb7b8-2e19-4a6b-8e10-19cb24d737b2 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 14

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.595448Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.548454Z digest=sha256:aeaae807edb81635073e9484545019e47975eaaba6f90a6e4f525942adfa07ca

Observation 24ffeaa6-5cd1-4a43-b24e-f9d2e262568b · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 15

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.604930Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.604930Z digest=sha256:b551ecfdb8c8b61d8ffaef154c4ee7e0290e8a3f85dee39132ef98278cb6a611

Observation 45293059-0a03-4cc1-a579-53b10ba12bb1 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 16

Resolution
verified exact
doi, observed 2026-08-06T13:16:03.661067Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.661687Z digest=sha256:28ea31f4e31418209e50e425ca437cab8ba1de465f3437ac6c6b6a8ad6208b20

Observation c8b251b5-83b1-41cf-8ec5-571ba0b2127c · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 17

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.586796Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.754476Z digest=sha256:5949a2bcca48b08d7d3ecac6c8a415bb80cc3c97a04785bf7fa260d31a0715d3

Observation 5b53c11a-c770-4e5f-be58-446f45b60275 · outbound

This paper cites MediaPipe: A Framework for Building Perception Pipelines.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? MediaPipe: A Framework for Building Perception Pipelines

Reference 18

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.849054Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.849054Z digest=sha256:9163740b59a6ba3a9a58892439fae4e42ccd703447ef2ce5381a6b09926429e8

Observation 596ba001-ba84-4d69-b24f-090b7a545d46 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 19

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:01.915328Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:01.915328Z digest=sha256:14ed1330602084ba182491d365619f64fe7cb863fb76a41ed2977b790c3d2cb1

Observation 818d1b77-b10d-4e68-adad-0f3c3a14621f · outbound

This paper cites Rodríguez-Ortiz.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Rodríguez-Ortiz

Reference 20

Resolution
verified exact
raw_fallback, observed 2026-08-06T13:16:04.878591Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:01.996539Z digest=sha256:ade153c2a4e8b5ce7a106b07c6428f13f51a6d7ce24479b0167d28fbd58131c9

Observation 01e16535-c929-4dd7-b513-dd62efb803e8 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 21

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.577724Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.116857Z digest=sha256:f4191e28e4fd167e84cdf0fd5687bc17c808ecbf1beefccbe392eff1b66cffed

Observation 7c65c768-5461-4f22-8d80-214c55849bf2 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 22

Resolution
verified exact
doi, observed 2026-08-06T13:16:03.315077Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

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Observation 4f7ee267-7680-46ec-8669-c053d7169744 · outbound

This paper cites López-Ortiz, Luis M.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? López-Ortiz, Luis M

Reference 23

Resolution
verified exact
doi, observed 2026-08-06T13:16:03.207279Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.284728Z digest=sha256:63889f3f1ac876b0b981c4b0a1ce4c0e7c7044b5a0e6a5f1ce5639c3f2c8bcfb

Observation 460889d4-44c6-42a6-b295-6ce33bb7e763 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 24

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.568995Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.390078Z digest=sha256:69fc7ba28659f0e0259177376cea3170eb419183aca3e937a3360ac98d01b262

Observation 097efd37-eba3-4936-b20a-e454f9adca2a · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 25

Resolution
verified exact
doi, observed 2026-08-06T13:16:03.039804Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.460113Z digest=sha256:373bedfa828a187c1e20413843e6eed106cbd3b7d27ef3c32c18ebdef1b6bc48

Observation ec57d878-fbd9-4ae5-af3c-29cddb868654 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 26

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:02.506256Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:02.506256Z digest=sha256:f2d1d9a21e2a7a0d429bc2196ecefcf8dd06061e9ed9d6547f7ea69222506617

Observation b13bd460-09e1-4533-9df2-d8ab8f48a581 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 27

Resolution
malformed identifier
no resolver link, observed 2026-08-06T13:16:02.589857Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:02.589857Z digest=sha256:069c3737613f72e5fb518c150c050ade3f02e938937619aec88c865d45608036

Observation 82a766f7-daed-4fad-b64b-cbfde63ff9b0 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 28

Resolution
unresolved
raw_fallback, observed 2026-08-06T13:16:05.559994Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.663902Z digest=sha256:5ac7d1287917a37ea5d7390665c0a497fd40ca0abc81e05f6409862cd78ade8e

Observation 95e91094-783d-4d46-a530-b29bf99931e8 · outbound

This paper cites SmoothGrad: removing noise by adding noise.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? SmoothGrad: removing noise by adding noise

Reference 29

Resolution
unresolved
no resolver link, observed 2026-08-06T13:16:02.728043Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:02.728043Z digest=sha256:9729888339120b973adc99f24b04834d5a66624e4bbd0fb0d0f3efce7bdb1266

Observation 5a35a136-314a-4801-9c91-f18a14a7bec7 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 30

Resolution
malformed identifier
no resolver link, observed 2026-08-06T13:16:02.815201Z

Source-reported events for the cited work

Unavailable: canonical work link unavailable.

source=pdf_text observed=2026-08-06T13:16:02.815201Z digest=sha256:bf5f38b75b48788acca5ca5e07f9c6621778316dde242cca3dfca5903bb912d5

Observation 329e1a1b-bc54-4557-b7bd-f91e655def9a · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 31

Resolution
metadata mismatch
raw_fallback, observed 2026-08-06T13:16:04.109040Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:02.886228Z digest=sha256:ea9a46066b0d6ffd35e015175cf2ea62685693233f3a994ff10098d7e4a8c1b0

Observation 8077ebb0-8796-4fdc-9bc9-370951a9e9a3 · outbound

This paper cites an unresolved cited work.

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? Unresolved cited work

Reference 186

Resolution
metadata mismatch
raw_fallback, observed 2026-08-06T13:16:05.549709Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.424018Z digest=sha256:cd21aef5818898fc95c82bf4a009785e559c0a1b85c8342b8811ade144f8d353

Observation 84649dea-fb3e-44f9-8ead-a9bab298bff2 · outbound

This paper cites In Proceedings of the 29th ACM International Conference on Multimedia (Virtual Event, China) (MM ’21).

The Importance of Facial Features in Vision-based Sign Language Recognition: Eyes, Mouth or Full Face? In Proceedings of the 29th ACM International Conference on Multimedia (Virtual Event, China) (MM ’21)

Reference 2021

Resolution
metadata mismatch
raw_fallback, observed 2026-08-06T13:16:05.487897Z

Source-reported events for the cited work

No event found in the named queried sources as of 2026-08-20T06:33:59.587034+00:00.

source=pdf_text observed=2026-08-06T13:16:00.762875Z digest=sha256:5af922fb5d7d68eb63e88e3a58af2daae326a044b64c82248cc3acad952cc42b

Pith citing papers

No inbound Pith citation observations are available.