| Challenge: | Existing methods to control dialogue generation are manual labelling and manual editing of data. |
| Approach: | They propose a method to control dialogue generation using exemplar responses . they use semantic frames present in exemplars to guide response generation . |
| Outcome: | The proposed model improves coherence while preserving semantic meaning and conversation goals . exemplar responses are handwritten or strategically curated to promote highlevel goals without explicit labels . |
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Long-term Control for Dialogue Generation: Methods and Evaluation (2022.naacl-main)
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| Challenge: | Current approaches for controlling dialogue response generation focus on high-level attributes like style, sentiment, or topic. |
| Approach: | They propose a method that allows for more fine-grained control of dialogue response generation . they propose utterances that encourage the generation of control words in the future . |
| Outcome: | The proposed method outperforms state-of-the-art constrained generation baselines on task-oriented dialogue datasets and shows that it is more fine-grained than previous methods. |
Target-Guided Dialogue Response Generation Using Commonsense and Data Augmentation (2022.findings-naacl)
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| Challenge: | Existing methods for target-guided response generation are inconsistent with human judgement ratings. |
| Approach: | They propose a technique that finds a bridging path between the source and target and uses it to generate transition responses. |
| Outcome: | The proposed technique outperforms baselines on target-guided response generation task. |
Controllable Conversation Generation with Conversation Structures via Diffusion Models (2023.findings-acl)
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| Challenge: | Current generation models fail to effectively utilize rich linguistic and world knowledge to generate coherent long text. |
| Approach: | They propose a conversation generation framework that incorporates human knowledge and conversation structures with both controllability and interpretability for better conversation generation. |
| Outcome: | The proposed framework incorporates human knowledge and conversation structures with both controllability and interpretability for better conversation generation. |
Multi-Domain Dialogue Acts and Response Co-Generation (2020.acl-main)
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| Challenge: | Existing pipeline approaches for task-oriented dialogue systems tend to predict multiple dialogue acts first and use them to assist response generation. |
| Approach: | They propose a neural co-generation model that generates dialogue acts and responses concurrently and preserves semantic structures of multi-domain dialogue acts. |
| Outcome: | The proposed model improves over state-of-the-art models in automatic and human evaluations on a large-scale dataset. |
Long Text Generation by Modeling Sentence-Level and Discourse-Level Coherence (2021.acl-long)
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| Challenge: | Existing generation models struggle to maintain a coherent event sequence throughout the generated text. |
| Approach: | They propose a long text generation model which can represent prefix sentences at sentence level and discourse level in the decoding process. |
| Outcome: | The proposed model can generate more coherent texts than state-of-the-art models. |
Retrieval-guided Dialogue Response Generation via a Matching-to-Generation Framework (D19-1)
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| Challenge: | generative models for end-to-end sequence generation have been shown promising for this task . however, how to precisely extract a skeleton and how to effectively train a retrieval-guided response generator is still challenging. |
| Approach: | They propose a framework where skeleton extraction is made by an interpretable matching model and a retrieval-guided response generator is followed by a separate generator. |
| Outcome: | The proposed framework outperforms baseline models in a variety of experiments. |
Knowledge-Grounded Dialogue Generation with Pre-trained Language Models (2020.emnlp-main)
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| Challenge: | Empirical results indicate that pre-trained language models can significantly outperform state-of-the-art methods in both automatic evaluation and human judgment. |
| Approach: | They propose to equip a pre-trained language model with a knowledge selection module to generate knowledge-grounded dialogues. |
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Generating Dialogue Responses from a Semantic Latent Space (2020.emnlp-main)
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| Challenge: | Existing models for dialogue generation are unable to integrate information from multiple semantically similar valid responses of a given prompt. |
| Approach: | They propose to learn the pair relationship between the prompts and responses as a regression task instead of the end-to-end classification on vocabulary. |
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Learning to Plan and Realize Separately for Open-Ended Dialogue Systems (2020.findings-emnlp)
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Sashank Santhanam, Zhuo Cheng, Brodie Mather, Bonnie Dorr, Archna Bhatia, Bryanna Hebenstreit, Alan Zemel, Adam Dalton, Tomek Strzalkowski, Samira Shaikh
| Challenge: | Existing approaches to natural language generation are construed as end-to-end systems . however, some issues persist, such as coherence of output and repetition/hallucination of tokens . |
| Approach: | They propose to decouple natural language generation into two phases: planning and realization. |
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Sentence-Level Content Planning and Style Specification for Neural Text Generation (D19-1)
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| Challenge: | Recent advances in text generation systems often produce incoherent and unfaithful outputs . a novel automated text generation system takes into account content selection, text planning, and surface realization. |
| Approach: | They propose an end-to-end trained two-step text generation model that considers sentence-level content planners and language styles. |
| Outcome: | The proposed model outperforms competing models in three domains with diverse topics and varying language styles. |