Paper Library

Research Taxonomy

A personal library of papers I have read.

3 research directions 83 structured notes
01 Spatial Intelligence & World Models

3D Perception & BEV

83 structured notes
02

MonoScene: Monocular 3D Semantic Scene Completion

Anh-Quan Cao and Raoul de Charette CVPR 2022 2022

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Monocular SSCFLoSP3D Context Prior

MonoScene shows that dense 3D geometry and semantics can be inferred from one RGB image by connecting a 2D encoder to a 3D completion network through line-of-sight feature projection and context-aware supervision.

03

TPVFormer: Tri-Perspective View for Vision-Based 3D Semantic Occupancy Prediction

Yuanhui Huang, Wenzhao Zheng, Yunpeng Zhang et al. CVPR 2023 2023

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Tri-Plane RepresentationSparse SupervisionCross-View Attention

TPVFormer extends BEV into three orthogonal feature planes, preserving height-aware 3D structure at near-quadratic rather than cubic representation cost.

04

OccFormer: Dual-path Transformer for Vision-based 3D Semantic Occupancy Prediction

Yunpeng Zhang, Zheng Zhu, and Dalong Du ICCV 2023 2023

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Dual-Path TransformerClass QueriesClass-Guided Sampling

OccFormer makes dense voxel reasoning tractable by decomposing 3D attention into local horizontal structure and a pooled global scene path, then adapts mask-classification decoding to sparse, imbalanced occupancy labels.

05

OccWorld: Learning a 3D Occupancy World Model for Autonomous Driving

Wenzhao Zheng, Weiliang Chen, Yuanhui Huang et al. ECCV 2024 2024

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Discrete Scene TokensAutoregressive ForecastingJoint Ego-Scene Modeling

OccWorld treats semantic occupancy as the state of a generative driving world model, tokenizing past 3D scenes and autoregressively predicting both future occupancy and ego motion.

06

Where2comm: Communication-Efficient Collaborative Perception via Spatial Confidence Maps

Yue Hu, Shaoheng Fang, Zixing Lei et al. NeurIPS 2022 2022

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Spatial ConfidenceBandwidth AdaptationMulti-Round Fusion

Where2comm converts collaborative perception from full-map broadcasting into spatially selective exchange: agents transmit only confidence-selected regions and request complementary evidence over multiple rounds.

07

Collaborative Semantic Occupancy Prediction with Hybrid Feature Fusion in Connected Automated Vehicles

Rui Song, Chenwei Liang, Hu Cao et al. CVPR 2024 2024

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Collaborative OccupancyHybrid Task FusionOrthogonal Features

CoHFF extends camera-based collaboration from boxes and BEV maps to dense semantic occupancy by fusing occupancy and semantic task features locally while exchanging compressed orthogonal plane features across vehicles.

08

Token Merging: Your ViT But Faster (ToMe)

Daniel Bolya et al. ICLR 2023 Oral 2023

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Training-FreeBipartite MatchingGeneral-Purpose

The canonical training-free token merging paper: it treats redundancy as information compression, not token deletion.

10

Accelerating Transformers with Spectrum-Preserving Token Merging (PiToMe)

Hoai-Chau Tran et al. NeurIPS 2024 2024

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Importance PreservationGraph EnergySpectral Structure

PiToMe adds an importance-aware gate before similarity matching: redundant clusters may be compressed, while isolated and distinctive tokens are protected.

11

Agglomerative Token Clustering (ATC)

Joakim Bruslund Haurum et al. ECCV 2024 2024

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Agglomerative ClusteringLow Keep RatesDense Tasks

ATC reframes token merging as bottom-up hierarchical clustering, producing coherent groups instead of committing to one-shot bipartite pairs.

13

Training-Free Acceleration of ViTs with Delayed Spatial Merging (DSM)

Jung Hwan Heo et al. ICML 2024 ES-FoMo Workshop 2024

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Delayed MergingSpatial LocalityLayer Scheduling

DSM shows that merging should be delayed until attention becomes convergent, then widened from local windows to global matching as representations grow more semantic.

14

ToSA: Token Merging with Spatial Awareness

Hsiang-Wei Huang et al. IROS 2025 2025

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Spatial AwarenessRGB-DMultimodal

ToSA fuses semantic similarity with explicit 3D spatial similarity from depth, giving early ViT layers a geometric signal that visual features alone do not yet provide.

15

MPM: Mutual Pair Merging for Efficient Vision Transformers

Simon Ravé, Pejman Rasti, and David Rousseau CVPR 2026 Findings 2026

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Mutual MatchingDense ReconstructionHardware Latency

MPM accepts a merge only when two tokens choose each other as nearest neighbors, then records a composable map that reconstructs dense spatial features before an unchanged segmentation decoder.

18

Towards Tight Bounds for Streaming Attention

Justin Y. Chen et al. Preprint 2026

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Streaming AttentionSpace ComplexityCoresets

This paper gives nearly tight memory bounds for approximating softmax attention in a stream and clarifies when sublinear KV-cache representations are theoretically possible.

25

Efficient Agents: Building Effective Agents While Reducing Cost

Ningning Wang et al. Preprint 2025

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Cost-aware AgentsInference EfficiencyAgent Design

Effective agent design is a joint optimization problem across model choice, reasoning policy, tool orchestration, and prompt context rather than a single-model accuracy contest.

26

ParaVT: Parallel Visual Tool Calling for Efficient Multi-Agent Visual Reasoning

Zuhao Yang et al. Preprint 2026

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Visual AgentsParallel Tool CallingMulti-Agent Reasoning

ParaVT replaces serial visual-tool execution with coordinated parallel calls, making tool diversity useful without paying the full latency of a long sequential chain.

27

Beyond Accuracy: Unveiling Inefficiency Patterns in Tool-Integrated Reasoning

Qisheng Su et al. ACL 2026 Long Paper 2026

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Process EfficiencyTool ReasoningEvaluation

Two agents can reach the same answer while differing sharply in wasted calls, redundant verification, tool choice, and format stability; accuracy alone cannot reveal that difference.

29

ContextBudget: Efficient and Effective Context Allocation for LLM Agents

Yong Wu et al. Preprint 2026

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Context AllocationBudget-aware ControlAgent RL

ContextBudget treats context length as a sequential resource-allocation decision, spending tokens where they increase task success instead of enforcing one static window for every step.

30

HarnessForge: Joint Harness and Policy Evolution for Adaptive Agent Systems

Mingju Chen et al. Preprint 2026

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Harness EvolutionPolicy AlignmentMeta-Adaptation

An agent adapts best when its external execution structure and internal reasoning policy evolve as a compatible pair rather than as independent components.

31

FederatedSkill: Federated Learning for Agentic Skill Evolution

Jingbo Yang et al. Preprint 2026

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Skill EvolutionFederated AgentsPersonalization

FederatedSkill communicates semantic skill diffs instead of raw trajectories and uses server-side capability memories to evolve a different skill library for each client.

32

Autogenesis: A Self-Evolving Agent Protocol

Wentao Zhang et al. Preprint 2026

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Self-EvolutionAgent ProtocolVersioned Resources

Autogenesis makes prompts, agents, tools, environments, and memory explicit versioned resources, then governs their evolution through auditable propose-verify-commit operations.

33

Agent Skill Evaluation and Evolution: Frameworks and Benchmarks

Kexin Ding et al. Preprint 2026

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Agent SkillsSkill EvolutionBenchmarks

Agent skills are reusable procedural packages whose quality must be evaluated across creation, retrieval, execution, evolution, and safety rather than by downstream success alone.

34

Automating Agent Hijacking via Structural Template Injection

Xinhao Deng et al. Preprint 2026

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Agent HijackingPrompt InjectionStructural Attacks

Phantom attacks the serialized role structure of agent context rather than relying only on persuasive malicious text, exposing a boundary failure between trusted instructions and retrieved data.

35

GateBreaker: Gate-Guided Attacks on Mixture-of-Expert LLMs

Lichao Wu et al. USENIX Security 2026 2026

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Mixture of ExpertsSafety AlignmentInference-time Attack

MoE safety behavior can concentrate in a small routed subset of experts and neurons, creating an architecture-specific failure mode that aggregate alignment evaluation can hide.

36

The Cold-Start Safety Gap in LLM Agents

Chung-En Sun, Linbo Liu, and Tsui-Wei Weng Preprint 2026

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Conversation DepthTool SafetySODA Benchmark

Tool-calling agents are least safe at the beginning of a session and become safer after ordinary preceding tasks, showing that safety depends on conversational state rather than only the current request.

37

PolicyShiftGuard: Benchmarking and Improving Policy-Adaptive Image Guardrails

Mingyang Song et al. Preprint 2026

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GuardrailsPolicy AdaptationMultimodal Safety

Image safety is a relation between visual evidence and the active policy, so a useful guardrail must correctly flip its decision when the policy changes while the image stays fixed.

38

Rate-Distortion Optimized Communication for Collaborative Perception

Genjia Liu, Anning Hu, Yue Hu et al. Preprint 2025

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Rate-DistortionDiscrete CodingMessage Selection

RDComm gives collaborative perception an information-theoretic objective: encode task-relevant features compactly and transmit only complementary messages.

39

UniRefiner: Teaching Pre-trained ViTs to Self-Dispose Dross via Contrastive Register

Congpei Qiu, Zhaoyu Hu, Wei Ke et al. Preprint 2026

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Spurious TokensContrastive RegisterTraining-Free Inference

UniRefiner diagnoses spurious visual tokens and turns learned register supervision into a plug-in token filter for frozen pretrained ViTs.

41

Categorical Depth Distribution Network for Monocular 3D Object Detection

Cody Reading, Ali Harakeh, Julia Chae, Steven L. Waslander CVPR 2021 2021

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Monocular 3D DetectionCategorical DepthFeature Lifting

CaDDN keeps monocular depth uncertainty as a categorical distribution and uses it to lift image features into a metric 3D volume.

42

Depth Anything: Unleashing the Power of Large-Scale Unlabeled Data

Lihe Yang, Bingyi Kang, Zilong Huang et al. CVPR 2024 2024

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Monocular DepthUnlabeled DataTeacher-Student

Depth Anything shows that data scale, pseudo-label quality, and semantic preservation can build a robust zero-shot depth prior without a complicated depth-specific architecture.

43

Depth Anything V2

Lihe Yang, Bingyi Kang, Zilong Huang et al. NeurIPS 2024 2024

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Synthetic TeacherPseudo LabelsMetric Depth

Depth Anything V2 uses precise synthetic supervision for a giant teacher and diverse real images for student distillation, separating geometric accuracy from visual coverage.

44

Depth Anything 3: Recovering the Visual Space from Any Views

Haotong Lin, Sili Chen, Jun Hao Liew et al. Preprint 2025

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Multi-view GeometryDepth-RaySingle Transformer

Depth Anything 3 reduces multi-view geometry to a single Transformer and a unified depth-ray target that jointly represents scene structure and camera motion.

45

Marigold-DC: Zero-Shot Monocular Depth Completion with Guided Diffusion

Massimiliano Viola, Kevin Qu, Nando Metzger et al. ICCV 2025 2025

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Depth CompletionGuided DiffusionTest-Time Optimization

Marigold-DC treats sparse measurements as test-time guidance for a pretrained generative depth prior, enabling zero-shot completion without task-specific training.

46

VGGT: Visual Geometry Grounded Transformer

Jianyuan Wang, Minghao Chen, Nikita Karaev et al. CVPR 2025 Best Paper 2025

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Feed-Forward GeometryMulti-viewCamera Estimation

VGGT predicts cameras, depth, point maps, and tracks for many images in one feed-forward pass, making a Transformer itself the geometry engine.

47

MCOP: Multi-UAV Collaborative Occupancy Prediction

Zefu Lin, Wenbo Chen, Xiaojuan Jin et al. Preprint 2025

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Multi-UAVCollaborative OccupancyFeature Compression

MCOP moves collaborative occupancy from road vehicles to UAV swarms and jointly compresses messages, requests useful regions, and decodes a shared aerial scene.

48

Cross-view Transformers for Real-time Map-view Semantic Segmentation

Brady Zhou and Philipp Krahenbuhl CVPR 2022 2022

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Cross-view AttentionMap-view QueriesReal-time BEV

CVT learns a direct attention bridge from camera feature maps to a canonical map-view grid and shows that explicit depth is not required for useful real-time BEV segmentation.

49

PETR: Position Embedding Transformation for Multi-View 3D Object Detection

Yingfei Liu, Tiancai Wang, Xiangyu Zhang, Jian Sun ECCV 2022 2022

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3D Position EncodingObject QueriesMulti-view Detection

PETR injects camera-aware 3D coordinates directly into image features so object queries can reason in 3D without first building a dense BEV grid.

50

ODG: Occupancy Prediction Using Dual Gaussians

Yunxiao Shi, Yinhao Zhu, Shizhong Han et al. NeurIPS 2025 2025

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Dual GaussiansStatic-Dynamic DecompositionRendering Supervision

ODG assigns different Gaussian query families to static structure and moving objects, then uses hierarchical decoding and rendering supervision for efficient dense occupancy.

52

COME: Adding Scene-Centric Forecasting Control to Occupancy World Model

Yining Shi, Kun Jiang, Qiang Meng et al. Preprint 2025

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Occupancy ForecastingScene-Centric ControlEgo-Motion Disentanglement

COME disentangles scene evolution from ego-view change and injects a scene-centric forecast as ControlNet guidance into a generative occupancy world model.

53

COTR: Compact Occupancy Transformer for Vision-based 3D Occupancy Prediction

Qihang Ma, Xin Tan, Yanyun Qu et al. CVPR 2024 2024

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Compact OccupancyGeometry-aware EncoderSemantic Group Decoder

COTR replaces a full-resolution 3D occupancy tensor with compact triplane features and semantic groups, reserving dense decoding for the final prediction.

55

Monocular Occupancy Prediction for Scalable Indoor Scenes

H. Yu et al. ECCV 2024 2024

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Indoor OccupancyDepth DistributionD-FLoSP

ISO injects a pretrained depth prior into a depth-distribution lifting module to scale monocular semantic scene completion across larger indoor volumes.

56

OPUS: Occupancy Prediction Using a Sparse Set

Jiawei Wang et al. NeurIPS 2024 2024

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Sparse QueriesSet PredictionAdaptive Sampling

OPUS predicts a dense occupancy scene from a sparse set of point queries that iteratively sample image features and refine their positions and semantics.

60

QuadricFormer: Scene as Superquadrics for 3D Semantic Occupancy Prediction

Sicheng Zuo, Wenzhao Zheng, Xiaoyong Han et al. Preprint 2025

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SuperquadricsPrimitive RefinementSparse Scene Representation

QuadricFormer represents a scene with a small set of volumetric superquadrics whose shape parameters naturally model both occupied interiors and object geometry.

61

Semantic Causality-Aware Vision-Based 3D Occupancy Prediction

Dubing Chen, Huan Zheng, Yucheng Zhou et al. Preprint 2025

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Causal LearningBackpropagated SemanticsSCAT

CausalOcc couples the 2D backbone, 3D lifting, and occupancy decoder through semantic causality so downstream errors update the features that caused them.

62

Fully Sparse 3D Occupancy Prediction

Haisong Liu, Yang Chen, Haiguang Wang et al. ECCV 2024 2024

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Fully SparseMask TransformerInstance Occupancy

SparseOcc keeps the entire camera-to-occupancy pipeline sparse, from 3D reconstruction through semantic and instance mask prediction.

63

SurroundOcc: Multi-Camera 3D Occupancy Prediction for Autonomous Driving

Yi Wei, Linqing Zhao, Wenzhao Zheng et al. ICCV 2023 2023

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Multi-scale Volume2D-to-3D LiftingDense Occupancy

SurroundOcc establishes a direct multi-camera dense-voxel baseline by lifting multi-scale image features into 3D and progressively refining occupancy.

65

VGMOcc: Sparse Gaussian Occupancy Prediction with Visual Geometry Models

Anonymous authors ICLR 2026 Submission 2026

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Visual Geometry ModelRay SamplingStreaming Gaussians

VGMOcc converts VGM surface points into volumetric Gaussian occupancy by sampling inward along camera rays and incrementally fusing predictions across frames.

68

Spatio-Temporal Domain Awareness for Multi-Agent Collaborative Perception

Kun Yang, Dingkang Yang, Jingyu Zhang et al. ICCV 2023 2023

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Domain GapConfidence CalibrationImportance-aware Fusion

SCOPE calibrates both temporal and cross-agent domain gaps before fusion, then weights evidence according to confidence and task importance.

71

Vision-Only Gaussian Splatting for Collaborative Semantic Occupancy Prediction

Cheng Chen, Hao Huang, Saurabh Bagchi Preprint 2025

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Collaborative GaussiansVision-onlyGaussian Packaging

VOGS-CP communicates sparse scene Gaussians rather than dense voxels or flat BEV features, preserving three-dimensional structure for collaborative occupancy.

72

Video-3D LLM: Learning Position-Aware Video Representation for 3D Scene Understanding

Duo Zheng, Shijia Huang, Liwei Wang CVPR 2025 2025

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Video LLM3D Position EncodingDense Captioning

Video-3D LLM aligns video patch tokens with global 3D coordinates so an LLM can answer questions, caption regions, and ground objects in metric space.

73

NeRF²: Neural Radio-Frequency Radiance Fields

Xiaopeng Zhao, Zhenlin An, Qingrui Pan, Lei Yang MobiCom 2023 2023

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RF FieldNeural RenderingWireless Sensing

NeRF² adapts coordinate-based neural fields and differentiable rendering from light to radio propagation, reconstructing RF signals throughout a complex environment.

74

NeRF: Representing Scenes as Neural Radiance Fields for View Synthesis

Ben Mildenhall, Pratul P. Srinivasan, Matthew Tancik et al. ECCV 2020 2020

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Neural FieldVolume RenderingNovel View Synthesis

NeRF represents a scene as a continuous coordinate MLP and trains it through differentiable volume rendering from posed images.

77

Task-Oriented Communication for Vehicle-to-Infrastructure Cooperative Perception

Jiawei Shao, Teng Li, Jun Zhang MLSP 2024 2024

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V2ITask-oriented CodingHierarchical Entropy

TOCOM-V2I uses infrastructure-side spatial relevance and hierarchical entropy coding to send compact features that directly maximize vehicle detection quality.

78

Vehicle-to-Everything Cooperative Perception for Autonomous Driving

Tao Huang, Jianan Liu, Xi Zhou et al. Proceedings of the IEEE 2025

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V2X SurveyFusion TaxonomyOpen Challenges

This survey organizes V2X cooperative perception from sensing and preparation through communication, alignment, fusion, and downstream output, while exposing deployment gaps.

79

V2X-PC: Vehicle-to-Everything Collaborative Perception via Point Cluster

Si Liu, Zihan Ding, Jiahui Fu et al. IEEE TPAMI 2025

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Point ClustersSparse CommunicationGraph Aggregation

V2X-PC replaces dense BEV messages with point clusters that preserve local geometry, semantics, and explicit object structure over long collaboration ranges.

80

Who2com: Collaborative Perception via Learnable Handshake Communication

Yen-Cheng Liu, Junjiao Tian, Chih-Yao Ma et al. ICRA 2020 2020

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HandshakePartner SelectionBandwidth-sensitive

Who2com separates cheap partner discovery from expensive data exchange through a request-match-connect handshake learned for perception utility.

83

Attention Is All You Need

Ashish Vaswani, Noam Shazeer, Niki Parmar et al. NeurIPS 2017 2017

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Self-AttentionEncoder-DecoderSequence Modeling

The Transformer replaces recurrence with parallel multi-head attention, positional encoding, residual pathways, and feed-forward blocks in an encoder-decoder architecture.