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SwiftTS: A Swift Selection Framework for Time Series Pre-trained Models via Multi-task Meta-Learning

arXiv.org Artificial Intelligence

Pre-trained models exhibit strong generalization to various downstream tasks. However, given the numerous models available in the model hub, identifying the most suitable one by individually fine-tuning is time-consuming. In this paper, we propose \textbf{SwiftTS}, a swift selection framework for time series pre-trained models. To avoid expensive forward propagation through all candidates, SwiftTS adopts a learning-guided approach that leverages historical dataset-model performance pairs across diverse horizons to predict model performance on unseen datasets. It employs a lightweight dual-encoder architecture that embeds time series and candidate models with rich characteristics, computing patchwise compatibility scores between data and model embeddings for efficient selection. To further enhance the generalization across datasets and horizons, we introduce a horizon-adaptive expert composition module that dynamically adjusts expert weights, and the transferable cross-task learning with cross-dataset and cross-horizon task sampling to enhance out-of-distribution (OOD) robustness. Extensive experiments on 14 downstream datasets and 8 pre-trained models demonstrate that SwiftTS achieves state-of-the-art performance in time series pre-trained model selection.


WolBanking77: Wolof Banking Speech Intent Classification Dataset

arXiv.org Artificial Intelligence

Intent classification models have made a significant progress in recent years. However, previous studies primarily focus on high-resource language datasets, which results in a gap for low-resource languages and for regions with high rates of illiteracy, where languages are more spoken than read or written. This is the case in Senegal, for example, where Wolof is spoken by around 90\% of the population, while the national illiteracy rate remains at of 42\%. Wolof is actually spoken by more than 10 million people in West African region. To address these limitations, we introduce the Wolof Banking Speech Intent Classification Dataset (WolBanking77), for academic research in intent classification. WolBanking77 currently contains 9,791 text sentences in the banking domain and more than 4 hours of spoken sentences. Experiments on various baselines are conducted in this work, including text and voice state-of-the-art models. The results are very promising on this current dataset. In addition, this paper presents an in-depth examination of the dataset's contents. We report baseline F1-scores and word error rates metrics respectively on NLP and ASR models trained on WolBanking77 dataset and also comparisons between models. Dataset and code available at: https://github.com/abdoukarim/wolbanking77.


ChatGPT shares data on how many users exhibit psychosis or suicidal thoughts

BBC News

OpenAI has released new estimates of the number of ChatGPT users who exhibit possible signs of mental health emergencies, including mania, psychosis or suicidal thoughts. The company said that around 0.07% of ChatGPT users active in a given week exhibited such signs, adding that its artificial intelligence (AI) chatbot recognizes and responds to these sensitive conversations. While OpenAI maintains these cases are extremely rare, critics said even a small percentage may amount to hundreds of thousands of people, as ChatGPT recently reached 800 million weekly active users, per boss Sam Altman. As scrutiny mounts, the company said it built a network of experts around the world to advise it. Those experts include more than 170 psychiatrists, psychologists, and primary care physicians who have practiced in 60 countries, the company said. They have devised a series of responses in ChatGPT to encourage users to seek help in the real world, according to OpenAI.


Hamas hands over remains of captive as Israeli drone strike kills two

Al Jazeera

Can Israel annex the West Bank if the US says no? Will the US plan for Gaza fail? 'We survived the war, we may not survive the ceasefire' Who are the 95 healthcare workers held by Israel? Hamas has handed over the remains of another dead captive to Israel, hours after an Israeli drone attack in southern Gaza killed two Palestinians amid a fragile ceasefire. The Israeli military said on Monday that the Red Cross had taken custody of the coffin and was in the process of transporting it to the army's troops in Gaza. The remains of 16 had been handed over as of Monday.


UN slams Israel after attack on peacekeepers in Lebanon

Al Jazeera

Can Israel annex the West Bank if the US says no? Will the US plan for Gaza fail? 'We survived the war, we may not survive the ceasefire' Who are the 95 healthcare workers held by Israel? The United Nations and France have condemned an Israeli attack that hit UN peacekeeping troops in southern Lebanon. UN spokesperson Stephane Dujarric said on Monday that the previous day's attack on UNIFIL troops, which he said involved an Israeli drone dropping a grenade in the vicinity of a patrol, as well as a tank opening fire on peacekeepers near the border town of Kfar Kila, was "very, very dangerous". Israel has violated the truce on a near-daily basis.


Mystery Mayan ruler was no king

Popular Science

Ix Ch'ak Ch'een was one of at least four women who oversaw the city of Cobá. Breakthroughs, discoveries, and DIY tips sent every weekday. Ongoing analysis of an ancient monument among the Mayan ruins at Cobá has revealed the identity of one of the sprawling city's previously unknown rulers. According to archaeologists with Mexico's National Institute of Anthropology and History (INAH), the king referenced multiple times in the historical accounts described on the city's Foundation Rock wasn't a king at all. She was a queen named Ix Ch'ak Ch'een.


Dolphins may be getting an Alzheimer's-like disease due to this neurotoxin

Popular Science

Environment Conservation Ocean Dolphins may be getting an Alzheimer's-like disease due to this neurotoxin The neurotoxins, found in algal blooms, primarily affect the body's nervous system. Breakthroughs, discoveries, and DIY tips sent every weekday. For marine biologists, dolphins are often viewed as sentinel species, or animals that shed light on the health of the ocean . Along with whales, porpoises, and other cetacean species, dolphins are one way that researchers know to sound the alarm about environmental hazards that might affect the ocean as a whole and potentially humans. In this context, researchers have connected neurotoxins from algal blooms to brain changes associated with an Alzheimer's-like disease in dolphins in Florida.


US Dept of Energy partners with AMD to build two supercomputers: Report

Al Jazeera

The United States has formed a $1bn partnership with Advanced Micro Devices (AMD) to construct two supercomputers that will tackle large scientific problems ranging from nuclear power to cancer treatments to national security. The Reuters news agency first reported the new partnership, citing Energy Secretary Chris Wright and AMD CEO Lisa Su. The machines can accelerate the process of making scientific discoveries in areas the US is focused on. Energy Secretary Wright said the systems would "supercharge" advances in nuclear power and fusion energy, technologies for defence and national security, and the development of drugs. Scientists and companies are trying to replicate fusion, the reaction that fuels the sun, by jamming light atoms in a plasma gas under intense heat and pressure to release massive amounts of energy.


Albania's digitally-created 'Minister for AI' is 'pregnant with 83 children', PM says

Daily Mail - Science & tech

This is why her and David Harbour's marriage REALLY ended': Following Lily Allen's'revenge album' against her ex-husband, his furious friends hit back at the'false' singer'A common medication sent my sex life roaring back... it's definitely not a rare side effect': Surprising ways women revived their flagging libidos - including a Netflix show dubbed'female Viagra' King Charles is heckled by Andrew protester shouting'how long have you known' - as he and Fergie prepare to leave Royal Lodge for separate houses Buffalo Bills suffer serious blow to Super Bowl hopes as star man Ed Oliver is ruled out'indefinitely' The NBA Mafia betting scandal is the tip of the iceberg. Now match-fixing expert speaks on wider web of sports shame... and who it implicates: 'Dancing with the devil' Woke Dem Jasmine Crockett's secret stock empire exposed - as she plots Senate run Anguish of mother whose son, four, and daughter, six, vanished in Nova Scotia woods six months ago... as cops reject claims a stranger abducted them This is exactly how to lose up to a stone by Christmas. My expert diet helps you slim while you sleep, won't leave you hungry - and no, you don't need Mounjaro or Ozempic! Trump ally and fellow real estate tycoon warns Zohran Mamdani will destroy NYC's housing market: 'That's not affordability, that's insanity' Bionic Woman actress Lindsay Wagner, 76, makes a rare appearance at fan event... see her now I wish my selfish sister had never been born. When she died at 33 after a life of hedonism, she became a saint in our family... I'll never forgive her for it Urgent warning to Gmail users as 183 MILLION passwords are stolen in data breach - here's how to check if your account is affected What HAS happened to Bradley Cooper's face?


Tesla chair warns Musk may quit if trillion-dollar pay deal is rejected

Al Jazeera

Elon Musk could leave Tesla as CEO if his proposed $1 trillion pay package is not approved, Board Chair Robyn Denholm has warned. The appeal was sent in a letter to shareholders of the electric car company on Monday. It comes ahead of Tesla's November 6 annual meeting, when shareholders are expected to vote on the proposed pay package, the largest of its kind. The proposed performance-based plan was designed to retain and motivate Musk to continue leading Tesla for at least another seven and a half years, Denholm said in the letter. Musk's leadership is "critical" to Tesla's success, she said, and warned that without a plan that properly incentivises him, the company could lose his "time, talent and vision".