Large Language Models (LLMs) for Information Retrieval (IR) applications, such as those used for web search or question-answering systems, currently base their effectiveness on human-crafted prompts for zero-shot relevance ranking – ranking items by how closely they match the user's query. Manually creating these prompts for LLMs is time-consuming and subjective. Additionally, this method struggles…
In the field of information retrieval (IR), large language models (LLMs) often require human-created prompts for precise relevance ranking. This demands a considerable amount of human effort, increasing the time consumption and subjectivity of the process. Current methods, such as manual prompt engineering, are effective but still time-intensive and plagued by inconsistent skill levels. Current…
Natural language processing plays a crucial role in refining language models for specified tasks by training AI models on vast and detailed datasets. However, the creation of these extensive datasets is arduous and costly, often requiring substantial human effort, and has, thus, resulted in a gap between academic research and industrial applications. The major obstacle…
Safeguarding the ethics and safety of large language models (LLMs) is key to ensuring their use doesn't result in harmful or offensive content. In examining why these models sometimes generate unacceptable text, researchers have discovered that they lack reliable refusal capabilities. Consequently, this paper explores ways in which LLMs can deny certain content types and…
Long-Context Language Models (LCLMs) have emerged as a new frontier in artificial intelligence with the potential to handle complex tasks and applications without needing intricate pipelines that were traditionally used due to the limitations of context length. Unfortunately, their evaluation and development have been fraught with challenges. Most evaluations rely on synthetic tasks with fixed-length…
Advancements in vision-language models (VLMs) have enabled the possibility of developing a fully autonomous Artificial Intelligence (AI) assistant that can perform daily computer tasks through natural language. However, just having the reasoning and common-sense abilities doesn't always lead to intelligent assistant behavior. Thus, a method to translate pre-training abilities into practical AI agents is crucial.…
Researchers from the OATML group at the University of Oxford have developed a statistical method to improve the reliability of large language models (LLMs) such as ChatGPT and Gemini. This method looks to mitigate the issues of "hallucinations," wherein the model generates false or unsupported information, and "confabulations," where the model provides arbitrary or incorrect…
Language Learning Models (LLMs) such as ChatGPT and Gemini have shown the capability of answering complex queries, but they often produce false or unsupported information, a situation aptly titled "hallucinations". This gets in the way of their reliability, with potential repercussions in critical fields like law and medicine. A specific subset of these hallucinations, known…
Machine learning has made significant strides, especially in the field of generative models such as diffusion models. These models are tailored to handle complex, high-dimensional data like images and audio which have versatile uses in various sectors such as art creation and medical imaging. Nevertheless, perfect alignment with human preferences remains a challenge, which can…
Neural networks, despite being theoretically capable of fitting as many data samples as they have parameters, often fall short in reality due to limitations in training procedures. This creates a gap between their potential and their practical performance, which can be an obstacle for applications that require precise data fitting, such as medical diagnoses, autonomous…
Biomedical Natural Language Processing (NLP) uses machine learning to interpret medical texts, aiding with diagnoses, treatment recommendations, and medical information extraction. However, ensuring the accuracy of these models is a challenge due to diverse and context-specific medical terminologies.
To address this issue, researchers from MIT, Harvard, and Mass General Brigham, among other institutions, developed RABBITS (Robust…
The integration of artificial intelligence (AI) in clinical pathology represents an exciting frontier in healthcare, but key challenges include data constraints, model transparency, and interoperability. These issues prevent AI and machine learning (ML) algorithms from being widely adopted in clinical settings, despite their proven effectiveness in tasks such as cell segmentation, image classification, and prognosis…