Policymakers rely on global climate models to assess a community’s risk of extreme weather. These models, run decades and even centuries forward, gauge future climate conditions over large areas but have a coarse resolution and are not definitive at the city level. To remedy this overlap, they may combine predictions from a coarse model with…
MIT scientists have developed a method to "correct" the predictions made by climate change models, thus enabling more accurate risk analysis of extreme weather events. Specifically, they have combined machine learning with dynamical systems theory to fine-tune global climate model predictions for the long-term. This enables policymakers and planners to assess community-specific risks of extreme…
Artificial Intelligence has significant potential to revolutionize healthcare by predicting disease progression using extensive health records, enabling personalized care. Multi-morbidity, the presence of multiple acute and chronic conditions in a patient, is an important factor in personalized healthcare. Traditional prediction algorithms often focus on specific diseases, but there is a need for comprehensive models that…
Artificial Intelligence (AI) models have huge potential to predict disease progression through analysis of health records, facilitating a more personalised healthcare service. This predictive capability is crucial in enabling more proactive health management of patients with chronic or acute illnesses related to lifestyle, genetics and socio-economic factors. Despite the existence of various predictive algorithms for…
Climate change experts are turning to an innovative approach to better predict extreme weather events and the impacts of climate change on specific locations. This new methodology "corrects" global climate models, combining machine learning with dynamical systems theory to bring the models' simulations much closer to expected real-world patterns. This approach can help policymakers effectively…
A study conducted by the University of Oxford has developed a way to test for instances when an AI language model is "unsure" of what it is generating or is "hallucinating". This term refers to when a language model creates responses that, while fluent and plausible, are inconsistent and not based in truth.
The concept…
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…
Researchers from the Massachusetts Institute of Technology (MIT) have developed a new method that can make long-term predictions regarding the risk of extreme weather events more accurate. The new technique combines machine learning with dynamical systems theory to make better predictions about extreme weather events such as floods and tropical cyclones in specific areas.
Currently, policymakers…
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…
The rise of vast data systems has made information retrieval a vital process for numerous platforms, including search engines and recommender systems. This is achieved by finding documents based on their content, a task that presents challenges related to relevance assessment, document ranking, and efficiency. A new Python library named BM25S aims to overcome the…