Papers › Temporal Segment Networks: Towards Good Practices for Deep Action Recognition

Temporal Segment Networks: Towards Good Practices for Deep Action Recognition

2 Aug 2016arXiv:1608.00859archive 2025-07-28

Limin Wang, Yuanjun Xiong, Zhe Wang, Yu Qiao, Dahua Lin, Xiaoou Tang, Luc van Gool

Deep convolutional networks have achieved great success for visual recognition in still images. However, for action recognition in videos, the advantage over traditional methods is not so evident. This paper aims to discover the principles to design effective ConvNet architectures for action recognition in videos and learn these models given limited training samples. Our first contribution is temporal segment network (TSN), a novel framework for video-based action recognition. which is based on the idea of long-range temporal structure modeling. It combines a sparse temporal sampling strategy and video-level supervision to enable efficient and effective learning using the whole action video. The other contribution is our study on a series of good practices in learning ConvNets on video data with the help of temporal segment network. Our approach obtains the state-the-of-art performance on the datasets of HMDB51 ( 69.4%) and UCF101 (94.2%). We also visualize the learned ConvNet models, which qualitatively demonstrates the effectiveness of temporal segment network and the proposed good practices.

PaperPDFCodeCode Syntology ran

In Syntology Open this paper in Syntology's Atlas, the map of the papers in Syntology's graph and their citations.

For agents, Syntology's MCP tool lists every function and class Syntology harvested from this paper and whether it ran (how to connect): get_harvested_code_for_paper(arxiv_id="1608.00859")

Code

Syntology Ran 2 of 24 code samples harvested from 7 repositories linked to this paper; 22 have no recorded run. Of those that ran: 2 ran · honoured contract.

By repository: community (archive-listed): 24 samples from 7 repositories, 2 ran. The run record, sample by sample. “Ran” means executed on a synthesized input, not that the code is correct or reproduces the paper.

22 repositories listed; official and paper-mentioned ones first.

yjxiong/caffe officialmentioned in papermentioned on GitHub report
yjxiong/temporal-segment-networks officialmentioned in papermentioned on GitHubpytorch report
CrazySherman/goodlife mentioned on GitHubpytorchBSD-2-Clause report
MIT-HAN-LAB/temporal-shift-module mentioned on GitHubpytorchMIT report
MichiganCOG/M-PACT mentioned on GitHubtfMIT report
Nortinwell/TSN mentioned on GitHubpytorchBSD-2-Clause report
WavesUR/embedded_TSM mentioned on GitHubpytorch report
ZJCV/Non-local mentioned on GitHubpytorchApache-2.0 report
ZJCV/TSN mentioned on GitHubpytorchApache-2.0 report
damien911224/theWorldInSafety mentioned on GitHubGPL-3.0 report
iamhoushiyou/tsn mentioned on GitHubpytorchBSD-2-Clause report
mtlouie-unm/alome-tsn mentioned on GitHubpytorch report
nhannguyen2709/video_recognition mentioned on GitHubpytorch report
rijuldhir/TSM mentioned on GitHubpytorch report
sunutf/TSM mentioned on GitHubpytorchMIT report

Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.

Code Syntology ran Syntology

24 samples harvested; 2 ran; 2 honoured the contract we drafted; 22 have no recorded run. Read from Syntology's graph 2026-09-24; that is when this build read the record, not when the samples ran.

2ran · honoured contract
22unverified

Licence: 3 of the 24 samples are pointer only, meaning Syntology does not serve that copy's text. This page shows no code text for any sample; each one links to its file in the repository.

Harvested from 7 repositories linked to this paper, official or community; each sample names its own and says which. “Ran” means the sample executed on a synthesized input. It does not mean the output is correct, and nothing here reproduces the paper's results. “Honoured” and “violated” refer to a contract Syntology drafted from the code itself; “our draft was wrong” and “fixture could not drive it” are failures of Syntology's instrument, not of the code.

Each sample ends with its code_sha256, Syntology's identity for that exact code. An agent fetches the stored sample with Syntology's MCP tool get_code(code_sha256="…") (how to connect); click an identity to copy that call.

Repository labels, per sample. official repository: The archive marks this repository official for the paper. named in the paper: The archive records that the paper mentions this repository; it is not marked official. community (archive-listed): In the archive's code links for this paper, not marked official and not recorded as mentioned in the paper. found in paper text by Syntology: Syntology found this repository in the paper's own text; whether it is the authors' implementation is not asserted. community: Not in the archive's code links for this paper; a community repository Syntology harvested. Samples from a repository marked official are listed first. Licence labels name the repository's licence as recorded at harvest. “Pointer only” means Syntology does not serve that copy's text, for one of four reasons: no licence file was found; the licence was not identified; the licence is recorded as permissive but that copy's record is not marked cleared; or the licence is outside the permissive list Syntology serves text under (MIT, Apache-2.0, BSD and similar). Some licences outside that list permit redistribution, such as WTFPL, and GPL-3.0 under its conditions; they are simply not on the list. Hover a licence label for the reason. File links open the file on GitHub at the default branch, which may have changed since the harvest.

schedule nhannguyen2709/video_recognition/train_tsn_spatial_stream.py community (archive-listed) ran · honoured contract fingerprinted no licence file found · pointer only · fa89677d377778f8 · report
schedule nhannguyen2709/video_recognition/train_tsn_motion_stream.py community (archive-listed) ran · honoured contract fingerprinted no licence file found · pointer only · 5e212072c1ba4c65 · report
convert_sync_bn ZJCV/Non-local/tsn/model/norm_helper.py community (archive-listed) unverified Apache-2.0 (permissive) · 88828f6a43c2063e · report
flow_stack_oversample CrazySherman/goodlife/pyActionRecog/utils/io.py community (archive-listed) unverified BSD-2-Clause (permissive) · 7feeb18d1dbe89d8 · report
get_norm ZJCV/Non-local/tsn/model/norm_helper.py community (archive-listed) unverified Apache-2.0 (permissive) · 9092b8b72f48621b · report
get_norm ZJCV/TSN/tsn/model/norm_helper.py community (archive-listed) unverified Apache-2.0 (permissive) · 91b0ded288fc9495 · report
make_temporal_shift WavesUR/embedded_TSM/ops/temporal_shift.py community (archive-listed) unverified no licence file found · pointer only · 690432aed6251af7 · report
make_temporal_shift rijuldhir/TSM/ops/temporal_shift.py community (archive-listed) unverified Apache-2.0 (permissive) · ea903b20756dc01d · report
parse_armlc_splits CrazySherman/goodlife/pyActionRecog/armlc.py community (archive-listed) unverified BSD-2-Clause (permissive) · 324b251cf5317ec4 · report
parse_label CrazySherman/goodlife/pyActionRecog/armlc.py community (archive-listed) unverified BSD-2-Clause (permissive) · 7225c9c33010b8d9 · report
preprocess_for_eval MichiganCOG/M-PACT/models/c3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · 541b84f358db0382 · report
preprocess_for_eval MichiganCOG/M-PACT/models/c3d/tf_version_HMDB51_preprocessing.py community (archive-listed) unverified MIT (permissive) · 2d6a9afae20381b6 · report
preprocess_for_eval MichiganCOG/M-PACT/models/i3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · 634caffb34a18a9c · report
preprocess_for_train MichiganCOG/M-PACT/models/c3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · 1076f344b59ea48f · report
preprocess_for_train MichiganCOG/M-PACT/models/c3d/tf_version_HMDB51_preprocessing.py community (archive-listed) unverified MIT (permissive) · 5209697119958449 · report
preprocess_for_train MichiganCOG/M-PACT/models/i3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · 684ff8396e14fded · report
preprocess_image MichiganCOG/M-PACT/models/c3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · f015c09b9fe3403d · report
preprocess_image MichiganCOG/M-PACT/models/c3d/tf_version_HMDB51_preprocessing.py community (archive-listed) unverified MIT (permissive) · 86d341d4d8e50c6e · report
preprocess_image MichiganCOG/M-PACT/models/i3d/default_preprocessing.py community (archive-listed) unverified MIT (permissive) · b9dd5244dad95ed4 · report
rgb_oversample CrazySherman/goodlife/pyActionRecog/utils/io.py community (archive-listed) unverified BSD-2-Clause (permissive) · dc1ea541a1f247e4 · report
rgb_to_parrots CrazySherman/goodlife/pyActionRecog/utils/io.py community (archive-listed) unverified BSD-2-Clause (permissive) · 0787dc11cf03c6bd · report
softmax CrazySherman/goodlife/pyActionRecog/utils/metrics.py community (archive-listed) unverified BSD-2-Clause (permissive) · a59fc47a6706506b · report
top_k_acc CrazySherman/goodlife/pyActionRecog/utils/metrics.py community (archive-listed) unverified BSD-2-Clause (permissive) · 71665e40051d22da · report
top_k_hit CrazySherman/goodlife/pyActionRecog/utils/metrics.py community (archive-listed) unverified BSD-2-Clause (permissive) · 5b4ba07c7dc78f0e · report

Tasks

Action ClassificationAction RecognitionAction Recognition In VideosMultimodal Activity RecognitionTemporal Action Localization

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Action Classification Kinetics-400 TSN Acc@1 73.9 #164 of 207 Archive leaderboard report
Action Classification Kinetics-400 TSN Acc@5 91.1 #164 of 207 Archive leaderboard report
Action Recognition HMDB-51 Temporal Segment Networks Average accuracy of 3 splits 69.4 #56 of 77 Archive leaderboard report
Action Recognition UCF101 Temporal Segment Networks 3-fold Accuracy 94.2 #56 of 91 Archive leaderboard report
Multimodal Activity Recognition EV-Action TSN (RGB) Accuracy 73.6 #3 of 9 Archive leaderboard report

Ranks are positions in the archive's leaderboards as they stood at the 2025-07-28 snapshot. Results published since then are not among these rows, so a rank here is not a current standing.

Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections