Aleppo Governorate
Nonparametric Regression Discontinuity Designs with Survival Outcomes
Schuessler, Maximilian, Sverdrup, Erik, Tibshirani, Robert, Wager, Stefan
Quasi-experimental evaluations are central for generating real-world causal evidence and complementing insights from randomized trials. The regression discontinuity design (RDD) is a quasi-experimental design that can be used to estimate the causal effect of treatments that are assigned based on a running variable crossing a threshold. Such threshold-based rules are ubiquitous in healthcare, where predictive and prognostic biomarkers frequently guide treatment decisions. However, standard RD estimators rely on complete outcome data, an assumption often violated in time-to-event analyses where censoring arises from loss to follow-up. To address this issue, we propose a nonparametric approach that leverages doubly robust censoring corrections and can be paired with existing RD estimators. Our approach can handle multiple survival endpoints, long follow-up times, and covariate-dependent variation in survival and censoring. We discuss the relevance of our approach across multiple areas of applications and demonstrate its usefulness through simulations and the prostate component of the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial where our new approach offers several advantages, including higher efficiency and robustness to misspecification. We have also developed an open-source software package, $\texttt{rdsurvival}$, for the $\texttt{R}$ language.
- North America > United States > California > Santa Clara County > Palo Alto (0.04)
- Europe > United Kingdom > England > Cambridgeshire > Cambridge (0.04)
- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.04)
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3,500-year-old loom tells a revolutionary tale
The remains of a Bronze Age loom highlights a turning point in human history. Recreation of an area of activities related to textile work as documented at Cabezo Redondo. Breakthroughs, discoveries, and DIY tips sent six days a week. Clothes make the man, and have helped keep humans from freezing for thousands of years. But how exactly did Bronze Age people make their clothes?
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Language Model Tokenizers Introduce Unfairness Between Languages
Recent language models have shown impressive multilingual performance, even when not explicitly trained for it. Despite this, there are concerns about the quality of their outputs across different languages. In this paper, we show how disparity in the treatment of different languages arises at the tokenization stage, well before a model is even invoked. The same text translated into different languages can have drastically different tok-enization lengths, with differences up to 15 times in some cases. These disparities persist even for tokenizers that are intentionally trained for multilingual support.
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- Information Technology > Artificial Intelligence > Natural Language > Large Language Model (0.70)
- Information Technology > Artificial Intelligence > Natural Language > Chatbot (0.69)
- Information Technology > Artificial Intelligence > Machine Learning > Neural Networks > Deep Learning (0.69)
- Information Technology > Artificial Intelligence > Natural Language > Machine Translation (0.68)
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- North America > Canada > Quebec > Montreal (0.04)
- Europe > Switzerland (0.04)
- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.04)
- Europe > United Kingdom > England > Oxfordshire > Oxford (0.14)
- Asia > Middle East > Syria > Damascus Governorate > Damascus (0.06)
- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.05)
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Syrian army, Kurdish-led SDF accuse each other of ceasefire violations
How many Syrians have returned? A ceasefire between the Syrian army and the Kurdish-led Syrian Democratic Forces (SDF) appears to be largely holding, even as the two sides have accused each other of violating its terms. The army on Sunday said the SDF launched multiple drone attacks in the Aleppo countryside, while the United States-trained Kurdish forces on Monday accused the army of targeting a Kurdish-majority city near the Turkish border. An initial four-day ceasefire between the Syrian army and the SDF was extended by 15 days soon after it expired on Saturday night. The official Syrian Arab News Agency (SANA) reported that the SDF launched more than 25 explosive drones on the army positions in the Aleppo countryside on Sunday, breaching the newly extended ceasefire.
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- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.48)
- Asia > Middle East > Republic of Türkiye (0.25)
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- Government > Regional Government > Asia Government > Middle East Government > Syria Government (1.00)
- Government > Military (1.00)
Syrian army moves east of Aleppo after Kurdish forces withdraw
The Syrian army is moving into areas east of Aleppo city, after Kurdish forces started a withdrawal. Syrian troops have been spotted entering Deir Hafer, a town about 50km (30 miles) from Aleppo. On Friday, the Kurdish Syrian Democratic Forces (SDF) militia announced it would redeploy east of the Euphrates river. This follows talks with US officials, and a pledge from Syrian President Ahmed al-Sharaa to make Kurdish a national language. After deadly clashes last week, the US urged both sides to avoid a confrontation.
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- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.87)
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- Government > Regional Government > Asia Government > Middle East Government > Syria Government (1.00)
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LIVE: Deadly clashes erupt between Syrian army, SDF forces in Aleppo
At least three civilians and a Syrian soldier have been killed after clashes erupted between the Syrian army and the Kurdish-led and US-backed Syrian Democratic Forces (SDF) in Aleppo, according to the state news agency SANA. Earlier, Syria's defence ministry said three soldiers were injured after SDF fired drones at a military checkpoint near Deir Hafer, east of northern province. Heavy machine gunfire and fighting have been reported in the areas of Sheikh Maqsoud and Ashrafiyah. The ministry says it will respond to the "aggression in an appropriate manner".
- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.67)
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- Asia > Middle East > Syria > Aleppo Governorate > Aleppo (0.04)