Challenge: Experimental results show the effectiveness of our slot filling model at addressing the OOV problem.
Approach: They propose a generative neural network model for slot filling based on a sequence-to-sequence model and a pointer network.
Outcome: The proposed model is able to predict slot values on spoken language data.

Similar Papers

Slot-Gated Modeling for Joint Slot Filling and Intent Prediction (N18-2)

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Challenge: Existing approaches for slot filling and intent detection have independent attention weights, but they suffer from error propagation due to their independent models.
Approach: They propose a slot gate that focuses on learning the relationship between intent and slot attention vectors to obtain better semantic frame results by the global optimization.
Outcome: The proposed model significantly improves sentence-level semantic frame accuracy with 4.2% and 1.9% relative improvement compared to the attentional model on benchmark ATIS and Snips datasets respectively.
Spoken Language Understanding for Task-oriented Dialogue Systems with Augmented Memory Networks (2021.naacl-main)

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Challenge: Recent research shows promising results by jointly learning of slot filling and intent detection tasks.
Approach: They propose a way to combine slot filling and slot filler learning to achieve state-of-the-art results.
Outcome: The proposed model outperforms existing methods on benchmark datasets and ATIS datasets.
Explainable Slot Type Attentions to Improve Joint Intent Detection and Slot Filling (2022.findings-emnlp)

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Challenge: Existing methods analyze and compute features collectively for all slot types, and have no way to explain slot filling model decisions.
Approach: They propose a method that learns to generate additional slot type specific features to improve accuracy and provides explanations for slot filling decisions for the first time in a joint NLU model.
Outcome: The proposed model improves on two widely used datasets and provides an explanation for slot filling decisions for the first time.
Joint Slot Filling and Intent Detection via Capsule Neural Networks (P19-1)

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Challenge: Existing models that label slots and detect intent do not preserve hierarchical relationship between words, slots, and intents.
Approach: They propose a capsule-based neural network model which performs slot filling and intent detection via a dynamic routing-by-agreement schema.
Outcome: The proposed model performs better than existing models and existing models on real-world datasets.
Recent Neural Methods on Slot Filling and Intent Classification for Task-Oriented Dialogue Systems: A Survey (2020.coling-main)

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Challenge: In recent years, neural-network based models have been used for a wide range of tasks, including slot filling and intent classification.
Approach: They propose three neural architectures to model slot filling and intent classification . they propose independent models, joint models and transfer learning models that exploit the mutual benefit of the two tasks simultaneously and scale the model to new domains.
Outcome: The proposed models model SF and IC separately, exploit mutual benefit of the two tasks simultaneously and scale the model to new domains.
Synergistic Augmentation: Enhancing Cross-Domain Zero-Shot Slot Filling with Small Model-Assisted Large Language Models (2025.findings-acl)

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Challenge: Existing approaches to slot filling are limited due to data scarcity and timeconsuming efforts.
Approach: They propose a framework that harnesses the power of a small model to augment inferential capabilities of LLMs without additional training.
Outcome: The proposed framework improves slot filling performance on a spoken language dataset and a NER dataset.
SpeechLLMs for Large-scale Contextualized Zero-shot Slot Filling (2025.emnlp-industry)

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Challenge: Slot filling is a key subtask in spoken language understanding (SLU) . recent advent of speech-based large language models has opened new avenues for speech understanding .
Approach: They propose to improve slot-filling task by creating an empirical upper bound for the task . they propose to use a speech-based large language model to integrate speech and text modalities .
Outcome: The proposed model improves slot filling performance while reducing generalization gaps.
Data Augmentation by Data Noising for Open-vocabulary Slots in Spoken Language Understanding (N19-3)

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Challenge: Neural networks are used to understand spoken language understanding (SLU) but it is difficult to recognize the slots of unknown words or ‘open-vocabulary’ slots because of the high cost of creating a manually tagged SLU dataset.
Approach: They propose to use a recurrent neural network to nois slots for data augmentation by using an attention-based bi-directional recurrence neural network.
Outcome: The proposed method achieves performance improvements of up to 0.57% and 3.25 in intent prediction (accuracy) and slot filling (f1-score) and 0.53% accuracy.
Syntactic Graph Convolutional Network for Spoken Language Understanding (2020.coling-main)

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Challenge: Existing work on slot filling and intent detection builds joint models without prior knowledge of linguistic knowledge.
Approach: They propose a joint model that integrates syntactic structure for learning slot filling and intent detection jointly.
Outcome: The proposed model outperforms existing models on two public benchmark datasets and further improves on slot filling and intent detection.
A Bi-Model Based RNN Semantic Frame Parsing Model for Intent Detection and Slot Filling (N18-2)

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Challenge: Intent detection and slot filling are two main tasks for building a spoken language understanding system.
Approach: They propose to use a sequence to sequence model to generate both intent and slot filling tasks together to perform the two tasks jointly.
Outcome: The proposed model achieves 0.5% intent accuracy improvement and 0.9 % slot filling improvement on the ATIS benchmark data.

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