EMNLP.2023 - System Demonstrations

Total: 52

#1 Fabricator: An Open Source Toolkit for Generating Labeled Training Data with Teacher LLMs [PDF1] [Copy] [Kimi1]

Authors: Jonas Golde ; Patrick Haller ; Felix Hamborg ; Julian Risch ; Alan Akbik

Most NLP tasks are modeled as supervised learning and thus require labeled training data to train effective models. However, manually producing such data at sufficient quality and quantity is known to be costly and time-intensive. Current research addresses this bottleneck by exploring a novel paradigm called zero-shot learning via dataset generation. Here, a powerful LLM is prompted with a task description to generate labeled data that can be used to train a downstream NLP model. For instance, an LLM might be prompted to “generate 500 movie reviews with positive overall sentiment, and another 500 with negative sentiment.” The generated data could then be used to train a binary sentiment classifier, effectively leveraging an LLM as a teacher to a smaller student model. With this demo, we introduce Fabricator, an open-source Python toolkit for dataset generation. Fabricator implements common dataset generation workflows, supports a wide range of downstream NLP tasks (such as text classification, question answering, and entity recognition), and is integrated with well-known libraries to facilitate quick experimentation. With Fabricator, we aim to support researchers in conducting reproducible dataset generation experiments using LLMs and help practitioners apply this approach to train models for downstream tasks.

#2 End-to-End Evaluation for Low-Latency Simultaneous Speech Translation [PDF] [Copy] [Kimi2]

Authors: Christian Huber ; Tu Anh Dinh ; Carlos Mullov ; Ngoc-Quan Pham ; Thai Binh Nguyen ; Fabian Retkowski ; Stefan Constantin ; Enes Ugan ; Danni Liu ; Zhaolin Li ; Sai Koneru ; Jan Niehues ; Alexander Waibel

The challenge of low-latency speech translation has recently draw significant interest in the research community as shown by several publications and shared tasks. Therefore, it is essential to evaluate these different approaches in realistic scenarios. However, currently only specific aspects of the systems are evaluated and often it is not possible to compare different approaches. In this work, we propose the first framework to perform and evaluate the various aspects of low-latency speech translation under realistic conditions. The evaluation is carried out in an end-to-end fashion. This includes the segmentation of the audio as well as the run-time of the different components. Secondly, we compare different approaches to low-latency speech translation using this framework. We evaluate models with the option to revise the output as well as methods with fixed output. Furthermore, we directly compare state-of-the-art cascaded as well as end-to-end systems. Finally, the framework allows to automatically evaluate the translation quality as well as latency and also provides a web interface to show the low-latency model outputs to the user.

#3 CHATREPORT: Democratizing Sustainability Disclosure Analysis through LLM-based Tools [PDF1] [Copy] [Kimi2]

Authors: Jingwei Ni ; Julia Bingler ; Chiara Colesanti-Senni ; Mathias Kraus ; Glen Gostlow ; Tobias Schimanski ; Dominik Stammbach ; Saeid Ashraf Vaghefi ; Qian Wang ; Nicolas Webersinke ; Tobias Wekhof ; Tingyu Yu ; Markus Leippold

In the face of climate change, are companies really taking substantial steps toward more sustainable operations? A comprehensive answer lies in the dense, information-rich landscape of corporate sustainability reports. However, the sheer volume and complexity of these reports make human analysis very costly. Therefore, only a few entities worldwide have the resources to analyze these reports at scale, which leads to a lack of transparency in sustainability reporting. Empowering stakeholders with LLM-based automatic analysis tools can be a promising way to democratize sustainability report analysis. However, developing such tools is challenging due to (1) the hallucination of LLMs and (2) the inefficiency of bringing domain experts into the AI development loop. In this paper, we introduce ChatReport, a novel LLM-based system to automate the analysis of corporate sustainability reports, addressing existing challenges by (1) making the answers traceable to reduce the harm of hallucination and (2) actively involving domain experts in the development loop. We make our methodology, annotated datasets, and generated analyses of 1015 reports publicly available. Video Introduction: https://www.youtube.com/watch?v=Q5AzaKzPE4M Github: https://github.com/EdisonNi-hku/chatreport Live web app: reports.chatclimate.ai

#4 RaLLe: A Framework for Developing and Evaluating Retrieval-Augmented Large Language Models [PDF1] [Copy] [Kimi2]

Authors: Yasuto Hoshi ; Daisuke Miyashita ; Youyang Ng ; Kento Tatsuno ; Yasuhiro Morioka ; Osamu Torii ; Jun Deguchi

Retrieval-augmented large language models (R-LLMs) combine pre-trained large language models (LLMs) with information retrieval systems to improve the accuracy of factual question-answering. However, current libraries for building R-LLMs provide high-level abstractions without sufficient transparency for evaluating and optimizing prompts within specific inference processes such as retrieval and generation. To address this gap, we present RaLLe, an open-source framework designed to facilitate the development, evaluation, and optimization of R-LLMs for knowledge-intensive tasks. With RaLLe, developers can easily develop and evaluate R-LLMs, improving hand-crafted prompts, assessing individual inference processes, and objectively measuring overall system performance quantitatively. By leveraging these features, developers can enhance the performance and accuracy of their R-LLMs in knowledge-intensive generation tasks.

#5 VIST5: An Adaptive, Retrieval-Augmented Language Model for Visualization-oriented Dialog [PDF1] [Copy] [Kimi2]

Authors: Henrik Voigt ; Nuno Carvalhais ; Monique Meuschke ; Markus Reichstein ; Sina Zarrie ; Kai Lawonn

The advent of large language models has brought about new ways of interacting with data intuitively via natural language. In recent years, a variety of visualization systems have explored the use of natural language to create and modify visualizations through visualization-oriented dialog. However, the majority of these systems rely on tailored dialog agents to analyze domain-specific data and operate domain-specific visualization tools and libraries. This is a major challenge when trying to transfer functionalities between dialog interfaces of different visualization applications. To address this issue, we propose VIST5, a visualization-oriented dialog system that focuses on easy adaptability to an application domain as well as easy transferability of language-controllable visualization library functions between applications. Its architecture is based on a retrieval-augmented T5 language model that leverages few-shot learning capabilities to enable a rapid adaptation of the system.

#6 H2O Open Ecosystem for State-of-the-art Large Language Models [PDF] [Copy] [Kimi1]

Authors: Arno Candel ; Jon McKinney ; Philipp Singer ; Pascal Pfeiffer ; Maximilian Jeblick ; Chun Ming Lee ; Marcos Conde

Large Language Models (LLMs) represent a revolution in AI. However, they also pose many significant risks, such as the presence of biased, private, copyrighted or harmful text. For this reason we need open, transparent and safe solutions. We introduce a complete open-source ecosystem for developing and testing LLMs. The goal of this project is to boost open alternatives to closed-source approaches. We release h2oGPT, a family of fine-tuned LLMs from 7 to 70 Billion parameters. We also introduce H2O LLM Studio, a framework and no-code GUI designed for efficient fine-tuning, evaluation, and deployment of LLMs using the most recent state-of-the-art techniques. Our code and models are licensed under fully permissive Apache 2.0 licenses. We believe open-source language models help to boost AI development and make it more accessible and trustworthy. Our demo is available at: https://gpt.h2o.ai/

#7 Koala: An Index for Quantifying Overlaps with Pre-training Corpora [PDF] [Copy] [Kimi1]

Authors: Thuy-Trang Vu ; Xuanli He ; Gholamreza Haffari ; Ehsan Shareghi

In very recent years more attention has been placed on probing the role of pre-training data in Large Language Models (LLMs) downstream behaviour. Despite the importance, there is no public tool that supports such analysis of pre-training corpora at large scale. To help research in this space, we launch Koala, a searchable index over large pre-training corpora using lossless compressed suffix arrays with highly efficient compression rate and search support. In its first release we index the public proportion of OPT 175B, GPT-3, GPT-Neo, GPT-Neo, LLaMA, BERT, ELECTRA, RoBERTA, XLNet pre-training corpora. Koala provides a framework to do forensic analysis on the current and future benchmarks as well as to assess the degree of memorization in the output from the LLMs. Koala is available for public use at https://koala-index.erc.monash.edu/.

#8 Sudowoodo: A Chinese Lyric Imitation System with Source Lyrics [PDF] [Copy] [Kimi1]

Authors: Yongzhu Chang ; Rongsheng Zhang ; Lin Jiang ; Qihang Chen ; Le Zhang ; Jiashu Pu

Lyrics generation is a well-known application in natural language generation research, with several previous studies focusing on generating accurate lyrics using precise control such as keywords, rhymes, etc. However, lyrics imitation, which involves writing new lyrics by imitating the style and content of the source lyrics, remains a challenging task due to the lack of a parallel corpus. In this paper, we introduce Sudowoodo, a Chinese lyrics imitation system that can generate new lyrics based on the text of source lyrics. To address the issue of lacking a parallel training corpus for lyrics imitation, we propose a novel framework to construct a parallel corpus based on a keyword-based lyrics model from source lyrics. Then the pairs (new lyrics, source lyrics) are used to train the lyrics imitation model. During the inference process, we utilize a post-processing module to filter and rank the generated lyrics, selecting the highest-quality ones. We incorporated audio information and aligned the lyrics with the audio to form the songs as a bonus. The human evaluation results show that our framework can perform better lyric imitation. Meanwhile, the Sudowoodo system and demo video of the system is available at Sudowoodo and https://youtu.be/u5BBT\_j1L5M

#9 ConvLab-3: A Flexible Dialogue System Toolkit Based on a Unified Data Format [PDF1] [Copy] [Kimi1]

Authors: Qi Zhu ; Christian Geishauser ; Hsien-chin Lin ; Carel van Niekerk ; Baolin Peng ; Zheng Zhang ; Shutong Feng ; Michael Heck ; Nurul Lubis ; Dazhen Wan ; Xiaochen Zhu ; Jianfeng Gao ; Milica Gasic ; Minlie Huang

Task-oriented dialogue (TOD) systems function as digital assistants, guiding users through various tasks such as booking flights or finding restaurants. Existing toolkits for building TOD systems often fall short in delivering comprehensive arrays of data, model, and experimental environments with a user-friendly experience. We introduce ConvLab-3: a multifaceted dialogue system toolkit crafted to bridge this gap. Our unified data format simplifies the integration of diverse datasets and models, significantly reducing complexity and cost for studying generalization and transfer. Enhanced with robust reinforcement learning (RL) tools, featuring a streamlined training process, in-depth evaluation tools, and a selection of user simulators, ConvLab-3 supports the rapid development and evaluation of robust dialogue policies. Through an extensive study, we demonstrate the efficacy of transfer learning and RL and showcase that ConvLab-3 is not only a powerful tool for seasoned researchers but also an accessible platform for newcomers.

#10 FLEEK: Factual Error Detection and Correction with Evidence Retrieved from External Knowledge [PDF] [Copy] [Kimi1]

Authors: Farima Fatahi Bayat ; Kun Qian ; Benjamin Han ; Yisi Sang ; Anton Belyy ; Samira Khorshidi ; Fei Wu ; Ihab Ilyas ; Yunyao Li

Detecting factual errors of textual information, whether generated by large language models (LLM) or curated by humans, is crucial for making informed decisions. LLMs’ inability to attribute their claims to external knowledge and their tendency to hallucinate makes it difficult to rely on their responses. Humans, too, are prone to factual errors in their writing. Since manual detection and correction of factual er- rors is labor-intensive, developing an automatic approach can greatly reduce human effort. We present a prototype tool that automatically extracts factual claims from text, gathers evidence from external knowledge sources, evaluates the factuality of each claim, and suggests revisions for identified errors using the collected evidence. Initial empirical evaluation on fact error detection (77-85% F1) shows the potential of our tool.

#11 YATO: Yet Another deep learning based Text analysis Open toolkit [PDF] [Copy] [Kimi1]

Authors: Zeqiang Wang ; Yile Wang ; Jiageng Wu ; Zhiyang Teng ; Jie Yang

We introduce YATO, an open-source, easy-to-use toolkit for text analysis with deep learning. Different from existing heavily engineered toolkits and platforms, YATO is lightweight and user-friendly for researchers from cross-disciplinary areas. Designed in a hierarchical structure, YATO supports free combinations of three types of widely used features including 1) traditional neural networks (CNN, RNN, etc.); 2) pre-trained language models (BERT, RoBERTa, ELECTRA, etc.); and 3) user-customized neural features via a simple configurable file. Benefiting from the advantages of flexibility and ease of use, YATO can facilitate fast reproduction and refinement of state-of-the-art NLP models, and promote the cross-disciplinary applications of NLP techniques. The code, examples, and documentation are publicly available at https://github.com/jiesutd/YATO. A demo video is also available at https://www.youtube.com/playlist?list=PLJ0mhzMcRuDUlTkzBfAftOqiJRxYTTjXH.

#12 Spacerini: Plug-and-play Search Engines with Pyserini and Hugging Face [PDF] [Copy] [Kimi2]

Authors: Christopher Akiki ; Odunayo Ogundepo ; Aleksandra Piktus ; Xinyu Zhang ; Akintunde Oladipo ; Jimmy Lin ; Martin Potthast

We present Spacerini, a tool that integrates the Pyserini toolkit for reproducible information retrieval research with Hugging Face to enable the seamless construction and deployment of interactive search engines. Spacerini makes state-of-the-art sparse and dense retrieval models more accessible to non-IR practitioners while minimizing deployment effort. This is useful for NLP researchers who want to better understand and validate their research by performing qualitative analyses of training corpora, for IR researchers who want to demonstrate new retrieval models integrated into the growing Pyserini ecosystem, and for third parties reproducing the work of other researchers. Spacerini is open source and includes utilities for loading, preprocessing, indexing, and deploying search engines locally and remotely. We demonstrate a portfolio of 13 search engines created with Spacerini for different use cases.

#13 Adapters: A Unified Library for Parameter-Efficient and Modular Transfer Learning [PDF] [Copy] [Kimi1]

Authors: Clifton Poth ; Hannah Sterz ; Indraneil Paul ; Sukannya Purkayastha ; Leon Engländer ; Timo Imhof ; Ivan Vulić ; Sebastian Ruder ; Iryna Gurevych ; Jonas Pfeiffer

We introduce Adapters, an open-source library that unifies parameter-efficient and modular transfer learning in large language models. By integrating 10 diverse adapter methods into a unified interface, Adapters offers ease of use and flexible configuration. Our library allows researchers and practitioners to leverage adapter modularity through composition blocks, enabling the design of complex adapter setups. We demonstrate the library’s efficacy by evaluating its performance against full fine-tuning on various NLP tasks. Adapters provides a powerful tool for addressing the challenges of conventional fine-tuning paradigms and promoting more efficient and modular transfer learning. The library is available via https://adapterhub.ml/adapters.

#14 INTELMO: Enhancing Models’ Adoption of Interactive Interfaces [PDF] [Copy] [Kimi3]

Authors: Chunxu Yang ; Chien-Sheng Wu ; Lidiya Murakhovs’ka ; Philippe Laban ; Xiang Chen

This paper presents INTELMO, an easy-to-use library to help model developers adopt user-faced interactive interfaces and articles from real-time RSS sources for their language models. The library categorizes common NLP tasks and provides default style patterns, streamlining the process of creating interfaces with minimal code modifications while ensuring an intuitive user experience. Moreover, INTELMO employs a multi-granular hierarchical abstraction to provide developers with fine-grained and flexible control over user interfaces. INTELMO is under active development, with document available at https://intelmo.github.io.

#15 Humanoid Agents: Platform for Simulating Human-like Generative Agents [PDF] [Copy] [Kimi1]

Authors: Zhilin Wang ; Yu Ying Chiu ; Yu Cheung Chiu

Just as computational simulations of atoms, molecules and cells have shaped the way we study the sciences, true-to-life simulations of human-like agents can be valuable tools for studying human behavior. We propose Humanoid Agents, a system that guides Generative Agents to behave more like humans by introducing three elements of System 1 processing: Basic needs (e.g. hunger, health and energy), Emotion and Closeness in Relationships. Humanoid Agents are able to use these dynamic elements to adapt their daily activities and conversations with other agents, as supported with empirical experiments. Our system is designed to be extensible to various settings, three of which we demonstrate, as well as to other elements influencing human behavior (e.g. empathy, moral values and cultural background). Our platform also includes a Unity WebGL game interface for visualization and an interactive analytics dashboard to show agent statuses over time. Our platform is available on https://www.humanoidagents.com/ and code is on https://github.com/HumanoidAgents/HumanoidAgents

#16 TP-Detector: Detecting Turning Points in the Engineering Process of Large-scale Projects [PDF] [Copy] [Kimi1]

Authors: Qi Wu ; WenHan Chao ; Xian Zhou ; Zhunchen Luo

This paper introduces a novel task of detecting turning points in the engineering process of large-scale projects, wherein the turning points signify significant transitions occurring between phases. Given the complexities involving diverse critical events and limited comprehension in individual news reports, we approach the problem by treating the sequence of related news streams as a window with multiple instances. To capture the evolution of changes effectively, we adopt a deep Multiple Instance Learning (MIL) framework and employ the multiple instance ranking loss to discern the transition patterns exhibited in the turning point window. Extensive experiments consistently demonstrate the effectiveness of our proposed approach on the constructed dataset compared to baseline methods. We deployed the proposed mode and provided a demonstration video to illustrate its functionality. The code and dataset are available on GitHub.

#17 CLEVA: Chinese Language Models EVAluation Platform [PDF] [Copy] [Kimi1]

Authors: Yanyang Li ; Jianqiao Zhao ; Duo Zheng ; Zi-Yuan Hu ; Zhi Chen ; Xiaohui Su ; Yongfeng Huang ; Shijia Huang ; Dahua Lin ; Michael Lyu ; Liwei Wang

With the continuous emergence of Chinese Large Language Models (LLMs), how to evaluate a model’s capabilities has become an increasingly significant issue. The absence of a comprehensive Chinese benchmark that thoroughly assesses a model’s performance, the unstandardized and incomparable prompting procedure, and the prevalent risk of contamination pose major challenges in the current evaluation of Chinese LLMs. We present CLEVA, a user-friendly platform crafted to holistically evaluate Chinese LLMs. Our platform employs a standardized workflow to assess LLMs’ performance across various dimensions, regularly updating a competitive leaderboard. To alleviate contamination, CLEVA curates a significant proportion of new data and develops a sampling strategy that guarantees a unique subset for each leaderboard round. Empowered by an easy-to-use interface that requires just a few mouse clicks and a model API, users can conduct a thorough evaluation with minimal coding. Large-scale experiments featuring 23 Chinese LLMs have validated CLEVA’s efficacy.

#18 DOPA METER – A Tool Suite for Metrical Document Profiling and Aggregation [PDF] [Copy] [Kimi1]

Authors: Christina Lohr ; Udo Hahn

We present DOPA METER, a tool suite for the metrical investigation of written language, that provides diagnostic means for its division into discourse categories, such as registers, genres, and style. The quantitative basis of our system are 120 metrics covering a wide range of lexical, syntactic, and semantic features relevant for language profiling. The scores can be summarized, compared, and aggregated using visualization tools that can be tailored according to the users’ needs. We also showcase an application scenario for DOPA METER.

#19 Muted: Multilingual Targeted Offensive Speech Identification and Visualization [PDF] [Copy] [Kimi2]

Authors: Christoph Tillmann ; Aashka Trivedi ; Sara Rosenthal ; Santosh Borse ; Rong Zhang ; Avirup Sil ; Bishwaranjan Bhattacharjee

Offensive language such as hate, abuse, and profanity (HAP) occurs in various content on the web. While previous work has mostly dealt with sentence level annotations, there have been a few recent attempts to identify offensive spans as well. We build upon this work and introduce MUTED, a system to identify multilingual HAP content by displaying offensive arguments and their targets using heat maps to indicate their intensity. MUTED can leverage any transformer-based HAP-classification model and its attention mechanism out-of-the-box to identify toxic spans, without further fine-tuning. In addition, we use the spaCy library to identify the specific targets and arguments for the words predicted by the attention heatmaps. We present the model’s performance on identifying offensive spans and their targets in existing datasets and present new annotations on German text. Finally, we demonstrate our proposed visualization tool on multilingual inputs.

#20 Gentopia.AI: A Collaborative Platform for Tool-Augmented LLMs [PDF] [Copy] [Kimi1]

Authors: Binfeng Xu ; Xukun Liu ; Hua Shen ; Zeyu Han ; Yuhan Li ; Murong Yue ; Zhiyuan Peng ; Yuchen Liu ; Ziyu Yao ; Dongkuan Xu

Augmented Language Models (ALMs) empower large language models with the ability to use tools, transforming them into intelligent agents for real-world interactions. However, most existing frameworks for ALMs, to varying degrees, are deficient in the following critical features: flexible customization, collaborative democratization, and holistic evaluation. This paper proposes Gentopia, a lightweight and extensible framework for ALMs. Gentopia allows the flexible customization of agents through simple configurations, seamlessly integrating various language models, task formats, prompting modules, and plugins into a unified paradigm. Furthermore, we establish Gentpool, a public platform enabling the registration and sharing of user-customized agents. Agents registered in Gentpool are composable such that they can be assembled together for agent collaboration, advancing the democratization of artificial intelligence. To ensure high-quality agents, Gentbench, an integral component of Gentpool, is designed to thoroughly evaluate user-customized agents across diverse aspects such as safety, robustness, efficiency, etc. We release Gentopia on Github and will continuously move forward.

#21 MusicAgent: An AI Agent for Music Understanding and Generation with Large Language Models [PDF] [Copy] [Kimi1]

Authors: Dingyao Yu ; Kaitao Song ; Peiling Lu ; Tianyu He ; Xu Tan ; Wei Ye ; Shikun Zhang ; Jiang Bian

AI-empowered music processing is a diverse feld that encompasses dozens of tasks, ranging from generation tasks (e.g., timbre synthesis) to comprehension tasks (e.g., music classifcation). For developers and amateurs, it is very diffcult to grasp all of these task to satisfy their requirements in music processing, especially considering the huge differences in the representations of music data and the model applicability across platforms among various tasks. Consequently, it is necessary to build a system to organize and integrate these tasks, and thus help practitioners to automatically analyze their demand and call suitable tools as solutions to fulfill their requirements. Inspired by the recent success of large language models (LLMs) in task automation, we develop a system, named MusicAgent, which integrates numerous music-related tools and an autonomous workflow to address user requirements. More specifically, we build 1) toolset that collects tools from diverse sources, including Hugging Face, GitHub, and Web API, etc. 2) an autonomous workflow empowered by LLMs (e.g., ChatGPT) to organize these tools and automatically decompose user requests into multiple sub-tasks and invoke corresponding music tools. The primary goal of this system is to free users from the intricacies of AI-music tools, enabling them to concentrate on the creative aspect. By granting users the freedom to effortlessly combine tools, the system offers a seamless and enriching music experience. The code is available on GitHub along with a brief instructional video.

#22 SentAlign: Accurate and Scalable Sentence Alignment [PDF] [Copy] [Kimi1]

Authors: Steinthor Steingrimsson ; Hrafn Loftsson ; Andy Way

We present SentAlign, an accurate sentence alignment tool designed to handle very large parallel document pairs. Given user-defined parameters, the alignment algorithm evaluates all possible alignment paths in fairly large documents of thousands of sentences and uses a divide-and-conquer approach to align documents containing tens of thousands of sentences. The scoring function is based on LaBSE bilingual sentence representations. SentAlign outperforms five other sentence alignment tools when evaluated on two different evaluation sets, German-French and English-Icelandic, and on a downstream machine translation task.

#23 QACheck: A Demonstration System for Question-Guided Multi-Hop Fact-Checking [PDF] [Copy] [Kimi1]

Authors: Liangming Pan ; Xinyuan Lu ; Min-Yen Kan ; Preslav Nakov

Fact-checking real-world claims often requires intricate, multi-step reasoning due to the absence of direct evidence to support or refute them. However, existing fact-checking systems often lack transparency in their decision-making, making it challenging for users to comprehend their reasoning process. To address this, we propose the Question-guided Multi-hop Fact-Checking (QACheck) system, which guides the model’s reasoning process by asking a series of questions critical for verifying a claim. QACheck has five key modules: a claim verifier, a question generator, a question-answering module, a QA validator, and a reasoner. Users can input a claim into QACheck, which then predicts its veracity and provides a comprehensive report detailing its reasoning process, guided by a sequence of (question, answer) pairs. QACheck also provides the source of evidence supporting each question, fostering a transparent, explainable, and user-friendly fact-checking process.

#24 RobustQA: A Framework for Adversarial Text Generation Analysis on Question Answering Systems [PDF] [Copy] [Kimi1]

Authors: Yasaman Boreshban ; Seyed Morteza Mirbostani ; Seyedeh Fatemeh Ahmadi ; Gita Shojaee ; Fatemeh Kamani ; Gholamreza Ghassem-Sani ; Seyed Abolghasem Mirroshandel

Question answering (QA) systems have reached human-level accuracy; however, these systems are not robust enough and are vulnerable to adversarial examples. Recently, adversarial attacks have been widely investigated in text classification. However, there have been few research efforts on this topic in QA. In this article, we have modified the attack algorithms widely used in text classification to fit those algorithms for QA systems. We have evaluated the impact of various attack methods on QA systems at character, word, and sentence levels. Furthermore, we have developed a new framework, named RobustQA, as the first open-source toolkit for investigating textual adversarial attacks in QA systems. RobustQA consists of seven modules: Tokenizer, Victim Model, Goals, Metrics, Attacker, Attack Selector, and Evaluator. It currently supports six different attack algorithms. Furthermore, the framework simplifies the development of new attack algorithms in QA. The source code and documentation of RobustQA are available at https://github.com/mirbostani/RobustQA.

#25 Kandinsky: An Improved Text-to-Image Synthesis with Image Prior and Latent Diffusion [PDF] [Copy] [Kimi1]

Authors: Anton Razzhigaev ; Arseniy Shakhmatov ; Anastasia Maltseva ; Vladimir Arkhipkin ; Igor Pavlov ; Ilya Ryabov ; Angelina Kuts ; Alexander Panchenko ; Andrey Kuznetsov ; Denis Dimitrov

Text-to-image generation is a significant domain in modern computer vision and achieved substantial improvements through the evolution of generative architectures. Among these, diffusion-based models demonstrated essential quality enhancements. These models generally split into two categories: pixel-level and latent-level approaches. We present Kandinsky – a novel exploration of latent diffusion architecture, combining the principles of image prior models with latent diffusion techniques. The image prior model, is trained separately to map CLIP text and image embeddings. Another distinct feature of the proposed model is the modified MoVQ implementation, which serves as the image autoencoder component. Overall the designed model contains 3.3B parameters. We also deployed a user-friendly demo system that supports diverse generative modes such as text-to-image generation, image fusion, text and image fusion, image variations generation and text-guided inpainting/outpainting. Additionally we released the source code and checkpoints for Kandinsky models. Experimental evaluations demonstrate FID score of 8.03 on the COCO-30K dataset, marking our model as the top open source performer in terms of measurable image generation quality.