Papers with QA models
Copied to clipboard
| Challenge: | Question Answering (QA) systems rely on deep neural networks, which are difficult to interpret by humans. |
| Approach: | They propose an interpretable model that provides an explanation infrastructure for comparing models based on saliency maps and graph-based explanations. |
| Outcome: | The proposed methods can be used to compare models based on saliency maps and graph-based explanations. |
Copied to clipboard
| Challenge: | Existing question answering techniques for lifelogs do not provide accurate answers . augmented reality glasses have led to the creation of personal assistants . |
| Approach: | They propose to use a benchmark to query lifelogs to find out what happened in real life . they find that extractive QA systems out-perform retrieval-augmented QA techniques . |
| Outcome: | The proposed method outperforms state-of-the-art retrieval-augmented QA systems in atomic queries and multi-hop queries. |
Copied to clipboard
| Challenge: | Question Answering (QA) is a growing area of research . state-of-the-art QA models struggle on out-of domain documents without fine-tuning . |
| Approach: | They propose a pipeline for validating and training QA data and an interface for human annotation. |
| Outcome: | The proposed pipeline improves QA performance on domain-specific datasets while preserving the accuracy of the model. |
Copied to clipboard
| Challenge: | Recent question answering and machine reading benchmarks require systems to pinpoint the span of the answer to a given text. |
| Approach: | They propose a dataset that requires deeper comprehension to answer questions extractively and deductively. |
| Outcome: | The proposed dataset outperforms existing benchmarks on extractive and deductive questions. |
Copied to clipboard
| Challenge: | Existing machine comprehension models focus on a single-turn setting and do not account for previous reasoning processes. |
| Approach: | They propose to explicitly model the information gain through the dialogue reasoning . they propose to apply the proposed mechanism to other machine comprehension models . |
| Outcome: | The proposed model achieves state-of-the-art performance in a conversational QA dataset QuAC and a sequential instruction understanding dataset SCONE. |
Copied to clipboard
| Challenge: | Existing models for multihop reasoning are limited in their performance . multi-hop reasoning requires the ability to gather information from multiple passages . |
| Approach: | They propose a method that provides the full reasoning chain of multiple passages instead of just one final passage where the answer appears. |
| Outcome: | The proposed model improves on existing models by providing the full reasoning chain of multiple passages instead of just one final passage where the answer appears. |
Copied to clipboard
| Challenge: | Existing domain adaptation methods do not account for unseen natural distribution shifts. |
| Approach: | They perform experiments on 4 different datasets under varying amounts of distribution shift . they analyze how "in-the-wild" generation can help achieve domain generalization . |
| Outcome: | The proposed approach augments reading comprehension datasets with generated data to improve robustness towards natural distribution shifts. |
Copied to clipboard
| Challenge: | Table Question Answering (Table QA) systems have been shown to be highly accurate when trained and tested on open-domain datasets built on top of Wikipedia tables. |
| Approach: | They propose a domain-specific Table QA test dataset to test Table Question Answering systems on open-domain datasets built on top of Wikipedia tables. |
| Outcome: | The proposed methods are highly accurate when tested on open-domain datasets built on top of Wikipedia tables. |
Copied to clipboard
| Challenge: | Existing QA datasets rarely distinguish fine-grained reading skills, such as the understanding of varying narrative elements. |
| Approach: | They propose to use FairytaleQA to generate 10,580 questions based on 278 children-friendly stories to assess model's fine-grained learning skills. |
| Outcome: | The proposed dataset consists of 10,580 questions derived from 278 children-friendly stories, covering seven types of narrative elements or relations. |
Copied to clipboard
| Challenge: | Existing approaches to CQA involve training new models from scratch . existing approaches are expensive and often not feasible . |
| Approach: | They propose to use QA feedback to supervise the rewriting model with reinforcement learning. |
| Outcome: | The proposed model can improve QA performance over baselines for extractive and retrieval QA. |
Copied to clipboard
| Challenge: | Existing models are far from perfect when assessed at the level of clusters of semantically connected probes, such as all hypernym questions about a single concept. |
| Approach: | They propose a method for automatically building probe datasets from expert knowledge sources, allowing systematic control and a comprehensive evaluation. |
| Outcome: | The proposed model is predisposed to recognize certain types of structural linguistic knowledge, but performance degrades even with a slight increase in the number of “hops” in the underlying taxonomic hierarchy. |
Copied to clipboard
| Challenge: | Recent advances in open-domain question answering (ODQA) have led to human-level performance on many datasets. |
| Approach: | They provide a comprehensive and quantitative analysis about the difficulty of book QA . they compare the results of their research with extensive ODQA experiments . |
| Outcome: | The proposed model outperforms existing models on event-oriented questions on the NarrativeQA dataset. |
Copied to clipboard
| Challenge: | Recent work shows that large-scale annotated datasets are essential for training state-of-the-art Question Answering (QA) models. |
| Approach: | They use large-scale annotated datasets to train question answering models . they use feedback data collected from deployed QA systems to provide cheaper supervision . |
| Outcome: | The proposed model improves on the large scale annotated datasets from QA systems . the proposed model can be easily supervised on large-scale unlabeled web data . |
Copied to clipboard
| Challenge: | Question Answering (QA) has primarily focused on knowledge bases or free text as a source of knowledge. |
| Approach: | They propose a task of multi-relational QA over personal narrative using text worlds . they generate and release a lightweight Python-based framework for easily generating additional worlds and narrative . |
| Outcome: | The proposed framework combines elements of structured QA over knowledge bases and unstructured QA . it generates and analyzes five diverse datasets with dynamic narrative . the framework is lightweight and easy to use . |
Copied to clipboard
| Challenge: | Cognitive science has long promoted the formation of mental models as central to understanding and question-answering. |
| Approach: | They train a new model, DREAM, to answer questions that elaborate the scenes that situated questions are about and then provide those elaborations as additional context to a question-answering (QA) model. |
| Outcome: | The proposed model is able to create better scene elaborations than a representative state-of-the-art, zero-shot model. |
Copied to clipboard
| Challenge: | Quantitative reasoning is an important aspect of question answering when numeric and verbal cues interact to indicate sophisticated, multi-step programs. |
| Approach: | They propose a method that encourages QA models to adjust attention patterns and capture input/output alignments that are meaningful to the reasoning task. |
| Outcome: | The proposed approach improves program accuracy and renders models more robust against overfitting as the number of reasoning steps grows. |
Copied to clipboard
| Challenge: | Several QA scenarios and datasets have been introduced over the past few years. |
| Approach: | They conduct extensive experiments to investigate the transferability of knowledge from a source QA dataset to a target dataset using two QA models. |
| Outcome: | The proposed model outperforms the previous best model on TOEFL listening comprehension test by 7% on target datasets. |
Copied to clipboard
| Challenge: | Question answering models often suffer from performance deterioration upon deployment . |
| Approach: | They propose a self-supervised framework called QADA for QA domain adaptation . they propose to augment training QA samples with hidden space augmentation . |
| Outcome: | The proposed framework improves on multiple target datasets over state-of-the-art methods. |
Copied to clipboard
| Challenge: | Existing extractive question answering methods use labeled data to train QA models. |
| Approach: | They propose an unsupervised method by diversifying answers by using data construction, data augmentation and denoising filter. |
| Outcome: | The proposed method outperforms previous models on five benchmark datasets . it shows strong performance in the few-shot learning setting . |
Copied to clipboard
| Challenge: | MuFaSSa is a metric for evaluating faithfulness of abstractive summaries . it uses different strategies to remove information from source document to form multiple ablated views . |
| Approach: | They propose a metric for evaluating faithfulness of abstractive summaries using multiple ablated views. |
| Outcome: | The proposed metric outperforms existing models on summarization tasks and human-annotated faithfulness labels. |
Copied to clipboard
| Challenge: | Question answering models can often be black boxes, as their reasoning process is mostly opaque. |
| Approach: | They analyze the effect of rationales generated by QA models on user feedback and how well they enable users to understand and trust model answers. |
| Outcome: | The proposed model can be used to improve model responses by removing feedback from end users and enhancing model outputs by using natural language feedback. |
Copied to clipboard
| Challenge: | Extractive QA models have shown promising performance in predicting the correct answer to a given question. |
| Approach: | They propose a BLANC-based context prediction task that learns the context prediction tasks. |
| Outcome: | The proposed model outperforms the state-of-the-art models on reading comprehension and hotpotQA. |
Copied to clipboard
| Challenge: | Zero-Shot Relation Extraction (ZRE) is a task where the training and test sets have no shared relation types. |
| Approach: | They propose to learn a model that can translate relation descriptions into relevant questions, which are then leveraged to generate the correct tail entity. |
| Outcome: | The proposed model outperforms the state-of-the-art on the fewrel and WikiZSL datasets by more than 16 F1 points without using gold question templates. |
Copied to clipboard
| Challenge: | Existing QA models rely on shortcuts to provide the true answer, referred to as disconnected reasoning problem. |
| Approach: | They propose a causal-effect approach that exploits true multi-hop reasoning instead of shortcuts. |
| Outcome: | The proposed method achieves 5.8% higher points of its Supps score on hotpotQA through true multihop reasoning. |
Copied to clipboard
| Challenge: | a dataset called CommonsenseQA (CQA) was recently released to advance the research on common-sense question answering (QA) |
| Approach: | They propose to retrieve and generate explanations for a given question, correct answer choice, incorrect answer choices tuple from a dataset called CommonsenseQA. |
| Outcome: | The proposed model beats baseline model by 100% in F1 score and similarity score of 61.9 . |
Copied to clipboard
| Challenge: | Existing approaches to improve machine reading comprehension models are vulnerable and not robust to adversarial examples. |
| Approach: | They propose to construct positive example pairs which have same answer by augmentation and then introduce stability and contrastive loss to improve invariance of representation. |
| Outcome: | The proposed approach boosts the robustness of QA models across different tasks and attack sets significantly and consistently. |
Copied to clipboard
| Challenge: | a system that finds the strongest supporting evidence for a given answer is proposed . a study using passage-based question-answering (QA) shows that agents select evidence that generalizes . |
| Approach: | They propose a system that finds the strongest supporting evidence for a given answer . they use passage-based question-answering (QA) as a testbed to train evidence agents . |
| Outcome: | The proposed system improves QA in a robust manner by using agent-selected evidence. |
Copied to clipboard
| Challenge: | Existing datasets for reading comprehension have deterministic answers, but questions in the real world do not always have definite answers. |
| Approach: | They propose a Question Answering (QA) dataset that contains complex questions with conditional answers. |
| Outcome: | The proposed dataset will motivate further research in answering complex questions over long documents. |
Copied to clipboard
| Challenge: | Existing QA systems focus on unstructured text, structured knowledge base, or semi-structured tables. |
| Approach: | They propose a large-scale question answering model based on financial reports . numerical reasoning is usually required to infer the answer . |
| Outcome: | The proposed model achieves 58.0% inF1, an 11.1% increase over the baseline model, but still lags behind the best human model. |
Copied to clipboard
| Challenge: | Existing literature observes bias in question answering (QA) models, but there is no method to mitigate it. |
| Approach: | They propose an approach to mitigate the bias of question answering models by observing the influence of a query instance on another instance. |
| Outcome: | The proposed method reduces bias level in all 9 bias categories while maintaining comparable QA accuracy. |
Copied to clipboard
| Challenge: | Question-Answering (QA) systems are deployed in the real world . a lack of research attention has been devoted to studying the issues that arise when people use QA systems. |
| Approach: | They show that component components that precede an answering engine can introduce varied and considerable sources of error. |
| Outcome: | The proposed evaluations highlight the need for QA evaluation to expand to consider real-world use. |
Copied to clipboard
| Challenge: | Open-domain and multi-hop QA is an important problem for both humans and computers. |
| Approach: | They propose a gamified interface where a human answers complex questions with access to traditional and modern search tools. |
| Outcome: | The proposed interface compares human queries to state-of-the-art QA models . human queries can improve the accuracy of existing systems, the authors argue . |
Copied to clipboard
| Challenge: | Existing approaches to use entailment models for question answering are limited . large scale datasets are typically framed at a sentence level, whereas question answering requires verifying whether multiple sentences, taken together as a premise, entitle a hypothesis. |
| Approach: | They propose a general architecture that can use entailment models for multi-hop QA tasks. |
| Outcome: | The proposed model outperforms QA models trained on target datasets and the OpenAI transformer models. |
Copied to clipboard
| Challenge: | Recent question answering systems perform well on benchmark datasets, but are not always well-calibrated to spot spurious answers under distribution shifts. |
| Approach: | They propose to use natural language inference to verify whether answers are correct . they leverage large pre-trained models and recent prior datasets to construct powerful question conversion and decontextualization modules. |
| Outcome: | The proposed approach improves the confidence estimation of a QA model across different domains, evaluated in a selective QA setting. |
Copied to clipboard
| Challenge: | Existing QA systems for question answering are limited by the availability of annotated datasets. |
| Approach: | They propose a dataset for question-answering that extracts information from multiple parts of text . they propose QA-based multi-span neural architecture that captures relevance among multiple answer spans . |
| Outcome: | The proposed model outperforms state-of-the-art QA models in this multi-span QA setting. |
Copied to clipboard
| Challenge: | Existing question answering datasets lack numerical reasoning and reasoning processes . current research on numerical reasoning focuses on simple calculations . |
| Approach: | They propose a conversational and bilingual question answering dataset with numerical reasoning with compound mathematical expressions. |
| Outcome: | The proposed model achieves 55.5 exact match scores while human performance is 89.7. |
Copied to clipboard
| Challenge: | Existing frameworks that generate single-step reasoning do not improve QA reasoning . |
| Approach: | They propose a framework that strategically constructs and refines sub-questions and their answers (sub-QAs) they argue that sub-QA does not always enhance QA reasoning . |
| Outcome: | The proposed framework can be integrated with existing QA models and benchmarks. |
Copied to clipboard
| Challenge: | Question Answering (QA) is a field of increasing demand due to the availability of information online. |
| Approach: | They propose an unsupervised approach to training QA models with generated pseudo-training data by applying a simple template on a related sentence rather than the original context sentence. |
| Outcome: | The proposed approach improves the performance of a QA model on generated pseudo-training data. |
Copied to clipboard
| Challenge: | QA models that are pretraining with unlabeled data can overfit and may not generalize well to unseen data that falls outside the training distribution. |
| Approach: | They propose a method which perturbs word embedding without changing their semantics. |
| Outcome: | The proposed method outperforms baseline methods on five target domains on a single source dataset on five different target domain domains. |
Copied to clipboard
| Challenge: | Recent research suggests that reading comprehension-based question answering systems assume that every question has a valid answer in the associated passage. |
| Approach: | They propose a novel nil-aware answer span extraction framework that can return Nil or a text span from the associated passage as an answer in a single step. |
| Outcome: | The proposed framework outperforms baseline approaches on a newsQA dataset. |
Copied to clipboard
| Challenge: | Existing QA models are not robust to variations in question constraints, but can be made more robust by tuning on clusters of related questions. |
| Approach: | They introduce RoMQA, the first benchmark for robust, multi-evidence, multianswer question answering (QA) RoMQ contains clusters of related questions that are derived from the Wikidata knowledge graph . |
| Outcome: | The proposed model is the first benchmark for robust, multi-evidence, multianswer question answering (QA) compared to prior QA datasets, it has more human-written questions that require reasoning over more evidence text and have, on average, many more correct answers. |
Copied to clipboard
| Challenge: | Existing approaches do not explicitly train QA models on how to resolve conversational dependency, and thus these models are limited in understanding human dialogues. |
| Approach: | They propose a framework that generates self-contained questions that can be understood without the conversation history and then trains a QA model with the pairs of original and self-constructed questions using a consistency-based regularizer. |
| Outcome: | The proposed framework improves the models’ performance by up to 1.2 F1 on QuAC, and 5.2 F1 for CANARD, while addressing the limitations of the existing approaches. |
Copied to clipboard
| Challenge: | Existing QA datasets only available for limited domains and languages. |
| Approach: | They propose to generate context, question and answer triples in an unsupervised manner and synthesize extractive QA training data automatically. |
| Outcome: | The proposed approach outperforms existing QA models on a common EQA benchmark dataset. |
Copied to clipboard
| Challenge: | Existing evaluation paradigms for ML based question answering models are lacking . a lack of explanation methods has been proposed for QA models . |
| Approach: | They propose an automatic evaluation paradigm for explanation methods in ML based question answering models . they adapt post hoc explanation methods such as LIME and input perturbation to the model . |
| Outcome: | The proposed evaluation paradigm compares explanation methods with human annotations. |
Copied to clipboard
| Challenge: | Existing approaches to build robust question answering models are too complex . antonym and entity swaps on answerable questions are used to build models . |
| Approach: | They propose a method for performing antonym and entity swaps on unanswerable questions. |
| Outcome: | The proposed method outperforms the previous state-of-the-art and has higher human-judged relatedness and readability. |
Copied to clipboard
| Challenge: | Existing studies attribute catastrophic forgetting to fine-tuning, and they retain pre-trained knowledge indiscriminately without identifying what knowledge is transferable. |
| Approach: | They propose a unified objective for fine-tuning to retrieve the causality back from pre-trained data and use it to mitigate negative transfer while preserving knowledge. |
| Outcome: | The proposed method outperforms state-of-the-art fine-tuning methods on commonsense QA datasets and can be implemented as a plug-in module to inflate the performance of existing QA models. |
Copied to clipboard
| Challenge: | Large language models can produce fluent dialogue but often hallucinate factual inaccuracies. |
| Approach: | They propose a modular model for incorporating knowledge into conversational agents that generates a knowledge sequence and then attends to its own generated knowledge sequence. |
| Outcome: | The proposed model hallucinates less in knowledge-grounded dialogue tasks and has advantages in terms of interpretability and modularity. |
Copied to clipboard
| Challenge: | Document-grounded dialogue systems aim to answer user queries by leveraging external information. |
| Approach: | They propose a dataset to evaluate QA systems' ability to interpret and use structured lists . they use language models and model-based filtering processes to enhance data quality . |
| Outcome: | The proposed model outperforms baselines on the LIST2QA dataset . it shows that the proposed model is more accurate and complete than baselines . |
Copied to clipboard
| Challenge: | Question answering models have access to two sources of knowledge during inference time: parametric knowledge and contextual knowledge. |
| Approach: | They propose a new paradigm in which QA models are trained to disentangle the two sources of knowledge. |
| Outcome: | The proposed model generates two answers for a given question based on parametric and contextual knowledge. |
Copied to clipboard
| Challenge: | Despite advancement of question answering systems, generalizability of QA models is a topic of concern. |
| Approach: | They propose to use a neural paraphrasing model to generate multiple paraphrased questions for a given source question and a set of paraphrase suggestions to re-train the models. |
| Outcome: | The proposed approach requires no human intervention to re-train the models for improved robustness to question paraphrasing. |
Copied to clipboard
| Challenge: | Existing Question Answering systems for commercial aviation use a large number of documents . a Knowledge Graph (KG) guided Deep Learning (DL) based system can be used to query the documents based on accident reports . |
| Approach: | They propose a Knowledge Graph (KG) guided Deep Learning (DL) based Question Answering system to cater to these requirements. |
| Outcome: | The proposed system achieves 7% and 40% increase in accuracy over existing systems. |
Copied to clipboard
| Challenge: | Existing methods to train multilingual QA systems are limited for other languages . cross-lingual learning is a technique that transfers knowledge from source to target language with fewer training data. |
| Approach: | They propose a translation method to translate the Stanford Question Answering Dataset to Spanish and a multilingual-BERT model to train Spanish QA systems. |
| Outcome: | The proposed method outperforms the previous benchmarks for cross-lingual extractive QA. |
Copied to clipboard
| Challenge: | The paper presents a new approach to form-filling by reformulating the task as multimodal natural language Question Answering (QA). |
| Approach: | They propose a new approach to form-filling by reformulating the task as multimodal natural language Question Answering (QA) the paper introduces a multimodal form-filled dataset and an extension of the popular ATIS dataset to support future research and experimentation. |
| Outcome: | The proposed approach maintains robust accuracy for sparse training conditions and achieves state-of-the-art F1 of 0.97 on ATIS with approximately 1/10th the training data. |
Copied to clipboard
| Challenge: | Our Dataset is the first cross-lingual QA dataset with a focus on African languages. |
| Approach: | They propose to use African languages as the only high-coverage source of answer content for cross-lingual open-retrieval question answering systems. |
| Outcome: | Our Dataset includes 12,000+ XOR QA examples across 10 African languages. |
Copied to clipboard
| Challenge: | Current robustness evaluation methods rely on static synthetic perturbations to stress-test models. |
| Approach: | They propose a framework for automatically evaluating QA models under naturally occurring textual perturbations by replacing context passages with revised Wikipedia edit histories. |
| Outcome: | The proposed framework replaces context passages with revised Wikipedia edit histories to improve model performance. |