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 Large Language Model


AI chatbots are improving at an even faster rate than computer chips

New Scientist

That suggests the developers of AI systems, known as large language models (LLMs), are becoming smarter at doing more with less. Nvidia's Blackwell AI'superchip' is the most powerful yet "There are basically two ways your performance might improve," says Tamay Besiroglu at the Massachusetts Institute of Technology.


Elie Hassenfeld Q&A: ' 5,000 to Save a Life Is a Bargain'

WIRED

When the board of OpenAI staged a bum mutiny last November, throwing out the company's leadership only to have the bosses return while board members were pressured to resign, something seemed rotten in the state of effective altruism. Nominally, OpenAI's mission had been to ensure that AI "benefits all of humanity." Fiduciarily, OpenAI's mission is to benefit the subset of humanity with a stake in OpenAI. And then, of course, there was Sam Bankman-Fried, the felonious altruist who argued in court last fall that his sordid crypto exchange was in fact a noble exercise in earning-to-give--making Midas money, sure, but only to funnel it to the global poor. This week he's facing a prison sentence of up to 50 years, which his legal team has complained paints him as a "depraved super-villain."


Leveraging Large Language Models for Relevance Judgments in Legal Case Retrieval

arXiv.org Artificial Intelligence

Collecting relevant judgments for legal case retrieval is a challenging and time-consuming task. Accurately judging the relevance between two legal cases requires a considerable effort to read the lengthy text and a high level of domain expertise to extract Legal Facts and make juridical judgments. With the advent of advanced large language models, some recent studies have suggested that it is promising to use LLMs for relevance judgment. Nonetheless, the method of employing a general large language model for reliable relevance judgments in legal case retrieval is yet to be thoroughly explored. To fill this research gap, we devise a novel few-shot workflow tailored to the relevant judgment of legal cases. The proposed workflow breaks down the annotation process into a series of stages, imitating the process employed by human annotators and enabling a flexible integration of expert reasoning to enhance the accuracy of relevance judgments. By comparing the relevance judgments of LLMs and human experts, we empirically show that we can obtain reliable relevance judgments with the proposed workflow. Furthermore, we demonstrate the capacity to augment existing legal case retrieval models through the synthesis of data generated by the large language model.


Reshaping Free-Text Radiology Notes Into Structured Reports With Generative Transformers

arXiv.org Artificial Intelligence

BACKGROUND: Radiology reports are typically written in a free-text format, making clinical information difficult to extract and use. Recently the adoption of structured reporting (SR) has been recommended by various medical societies thanks to the advantages it offers, e.g. standardization, completeness and information retrieval. We propose a pipeline to extract information from free-text radiology reports, that fits with the items of the reference SR registry proposed by a national society of interventional and medical radiology, focusing on CT staging of patients with lymphoma. METHODS: Our work aims to leverage the potential of Natural Language Processing (NLP) and Transformer-based models to deal with automatic SR registry filling. With the availability of 174 radiology reports, we investigate a rule-free generative Question Answering approach based on a domain-specific version of T5 (IT5). Two strategies (batch-truncation and ex-post combination) are implemented to comply with the model's context length limitations. Performance is evaluated in terms of strict accuracy, F1, and format accuracy, and compared with the widely used GPT-3.5 Large Language Model. A 5-point Likert scale questionnaire is used to collect human-expert feedback on the similarity between medical annotations and generated answers. RESULTS: The combination of fine-tuning and batch splitting allows IT5 to achieve notable results; it performs on par with GPT-3.5 albeit its size being a thousand times smaller in terms of parameters. Human-based assessment scores show a high correlation (Spearman's correlation coefficients>0.88, p-values<0.001) with AI performance metrics (F1) and confirm the superior ability of LLMs (i.e., GPT-3.5, 175B of parameters) in generating plausible human-like statements.


CheckEval: Robust Evaluation Framework using Large Language Model via Checklist

arXiv.org Artificial Intelligence

We introduce CheckEval, a novel evaluation framework using Large Language Models, addressing the challenges of ambiguity and inconsistency in current evaluation methods. CheckEval addresses these challenges by dividing evaluation criteria into detailed sub-aspects and constructing a checklist of Boolean questions for each, simplifying the evaluation. This approach not only renders the process more interpretable but also significantly enhances the robustness and reliability of results by focusing on specific evaluation dimensions. Validated through a focused case study using the SummEval benchmark, CheckEval indicates a strong correlation with human judgments. Furthermore, it demonstrates a highly consistent Inter-Annotator Agreement. These findings highlight the effectiveness of CheckEval for objective, flexible, and precise evaluations. By offering a customizable and interactive framework, CheckEval sets a new standard for the use of LLMs in evaluation, responding to the evolving needs of the field and establishing a clear method for future LLM-based evaluation.


BlendX: Complex Multi-Intent Detection with Blended Patterns

arXiv.org Artificial Intelligence

Task-oriented dialogue (TOD) systems are commonly designed with the presumption that each utterance represents a single intent. However, this assumption may not accurately reflect real-world situations, where users frequently express multiple intents within a single utterance. While there is an emerging interest in multi-intent detection (MID), existing in-domain datasets such as MixATIS and MixSNIPS have limitations in their formulation. To address these issues, we present BlendX, a suite of refined datasets featuring more diverse patterns than their predecessors, elevating both its complexity and diversity. For dataset construction, we utilize both rule-based heuristics as well as a generative tool -- OpenAI's ChatGPT -- which is augmented with a similarity-driven strategy for utterance selection. To ensure the quality of the proposed datasets, we also introduce three novel metrics that assess the statistical properties of an utterance related to word count, conjunction use, and pronoun usage. Extensive experiments on BlendX reveal that state-of-the-art MID models struggle with the challenges posed by the new datasets, highlighting the need to reexamine the current state of the MID field. The dataset is available at https://github.com/HYU-NLP/BlendX.


Homogeneous Tokenizer Matters: Homogeneous Visual Tokenizer for Remote Sensing Image Understanding

arXiv.org Artificial Intelligence

The tokenizer, as one of the fundamental components of large models, has long been overlooked or even misunderstood in visual tasks. One key factor of the great comprehension power of the large language model is that natural language tokenizers utilize meaningful words or subwords as the basic elements of language. In contrast, mainstream visual tokenizers, represented by patch-based methods such as Patch Embed, rely on meaningless rectangular patches as basic elements of vision, which cannot serve as effectively as words or subwords in language. Starting from the essence of the tokenizer, we defined semantically independent regions (SIRs) for vision. We designed a simple HOmogeneous visual tOKenizer: HOOK. HOOK mainly consists of two modules: the Object Perception Module (OPM) and the Object Vectorization Module (OVM). To achieve homogeneity, the OPM splits the image into 4*4 pixel seeds and then utilizes the attention mechanism to perceive SIRs. The OVM employs cross-attention to merge seeds within the same SIR. To achieve adaptability, the OVM defines a variable number of learnable vectors as cross-attention queries, allowing for the adjustment of token quantity. We conducted experiments on the NWPU-RESISC45, WHU-RS19 classification dataset, and GID5 segmentation dataset for sparse and dense tasks. The results demonstrate that the visual tokens obtained by HOOK correspond to individual objects, which demonstrates homogeneity. HOOK outperformed Patch Embed by 6\% and 10\% in the two tasks and achieved state-of-the-art performance compared to the baselines used for comparison. Compared to Patch Embed, which requires more than one hundred tokens for one image, HOOK requires only 6 and 8 tokens for sparse and dense tasks, respectively, resulting in efficiency improvements of 1.5 to 2.8 times. The code is available at https://github.com/GeoX-Lab/Hook.


A State-of-the-practice Release-readiness Checklist for Generative AI-based Software Products

arXiv.org Artificial Intelligence

This paper investigates the complexities of integrating Large Language Models (LLMs) into software products, with a focus on the challenges encountered for determining their readiness for release. Our systematic review of grey literature identifies common challenges in deploying LLMs, ranging from pre-training and fine-tuning to user experience considerations. The study introduces a comprehensive checklist designed to guide practitioners in evaluating key release readiness aspects such as performance, monitoring, and deployment strategies, aiming to enhance the reliability and effectiveness of LLM-based applications in real-world settings.


Can LLMs Converse Formally? Automatically Assessing LLMs in Translating and Interpreting Formal Specifications

arXiv.org Artificial Intelligence

Automatic system synthesis and verification often require specifications to be provided in a formal language such as propositional logic [Haubelt and Feldmann, 2003, Scholl and Becker, 2001]. Typically, human experts serve as middlemen that can (a) translate natural language (NL) specifications of stakeholders to formal syntax, or (b) explain or interpret the system's functionality by translating the system manual into NL. Given the success of Large Language Models (LLMs) in translation tasks [Xue et al., 2021], utilizing LLMs as middlemen can help in reducing overall system design costs. Thus, it is vital to develop an evaluation methodology that can assess the capabilities of LLMs in such settings. However, developing such a methodology is quite difficult. Firstly, obtaining high-quality datasets - such as those that contain ground truth data that LLMs have not been trained on - is difficult. As LLMs evolve, the dataset would need to evolve as well since it would likely be included as a part of the next-gen LLMs training process. Scaling up existing datasets is challenging since they require human annotators to encode NL text and their formal specifications. Finally, the assessment task must consider both the directions of translation; formal-to-natural and natural-to-formal.


Attacks, Defenses and Evaluations for LLM Conversation Safety: A Survey

arXiv.org Artificial Intelligence

Large Language Models (LLMs) are now commonplace in conversation applications. However, their risks of misuse for generating harmful responses have raised serious societal concerns and spurred recent research on LLM conversation safety. Therefore, in this survey, we provide a comprehensive overview of recent studies, covering three critical aspects of LLM conversation safety: attacks, defenses, and evaluations. Our goal is to provide a structured summary that enhances understanding of LLM conversation safety and encourages further investigation into this important subject. For easy reference, we have categorized all the studies mentioned in this survey according to our taxonomy, available at: https://github.com/niconi19/LLM-conversation-safety.