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Recent Advances in Multi-Choice Machine Reading Comprehension: A Survey on Methods and Datasets

arXiv.org Artificial Intelligence

This paper provides a thorough examination of recent developments in the field of multi-choice Machine Reading Comprehension (MRC). Focused on benchmark datasets, methodologies, challenges, and future trajectories, our goal is to offer researchers a comprehensive overview of the current landscape in multi-choice MRC. The analysis delves into 30 existing cloze-style and multiple-choice MRC benchmark datasets, employing a refined classification method based on attributes such as corpus style, domain, complexity, context style, question style, and answer style. This classification system enhances our understanding of each dataset's diverse attributes and categorizes them based on their complexity. Furthermore, the paper categorizes recent methodologies into Fine-tuned and Prompt-tuned methods. Fine-tuned methods involve adapting pre-trained language models (PLMs) to a specific task through retraining on domain-specific datasets, while prompt-tuned methods use prompts to guide PLM response generation, presenting potential applications in zero-shot or few-shot learning scenarios. By contributing to ongoing discussions, inspiring future research directions, and fostering innovations, this paper aims to propel multi-choice MRC towards new frontiers of achievement.


Attention is all you need for an improved CNN-based flash flood susceptibility modeling. The case of the ungauged Rheraya watershed, Morocco

arXiv.org Artificial Intelligence

Effective flood hazard management requires evaluating and predicting flash flood susceptibility. Convolutional neural networks (CNNs) are commonly used for this task but face issues like gradient explosion and overfitting. This study explores the use of an attention mechanism, specifically the convolutional block attention module (CBAM), to enhance CNN models for flash flood susceptibility in the ungauged Rheraya watershed, a flood prone region. We used ResNet18, DenseNet121, and Xception as backbone architectures, integrating CBAM at different locations. Our dataset included 16 conditioning factors and 522 flash flood inventory points. Performance was evaluated using accuracy, precision, recall, F1-score, and the area under the curve (AUC) of the receiver operating characteristic (ROC). Results showed that CBAM significantly improved model performance, with DenseNet121 incorporating CBAM in each convolutional block achieving the best results (accuracy = 0.95, AUC = 0.98). Distance to river and drainage density were identified as key factors. These findings demonstrate the effectiveness of the attention mechanism in improving flash flood susceptibility modeling and offer valuable insights for disaster management.


SharkTrack: an accurate, generalisable software for streamlining shark and ray underwater video analysis

arXiv.org Artificial Intelligence

Elasmobranchs (sharks and rays) can be important components of marine ecosystems but are experiencing global population declines. Effective monitoring of these populations is essential to their protection. Baited Remote Underwater Video Stations (BRUVS) have been a key tool for monitoring, but require time-consuming manual analysis. To address these challenges, we developed SharkTrack, an AI-enhanced BRUVS analysis software. SharkTrack uses Convolutional Neural Networks and Multi-Object Tracking to detect and track elasmobranchs and provides an annotation pipeline to manually classify elasmobranch species and compute MaxN, the standard metric of relative abundance. We tested SharkTrack on BRUVS footage from locations unseen by the model during training. SharkTrack computed MaxN with 89% accuracy over 207 hours of footage. The semi-automatic SharkTrack pipeline required two minutes of manual classification per hour of video, a 97% reduction of manual BRUVS analysis time compared to traditional methods, estimated conservatively at one hour per hour of video. Furthermore, we demonstrate SharkTrack application across diverse marine ecosystems and elasmobranch species, an advancement compared to previous models, which were limited to specific species or locations. SharkTrack applications extend beyond BRUVS analysis, facilitating rapid annotation of unlabeled videos, aiding the development of further models to classify elasmobranch species. We provide public access to the software and an unprecedentedly diverse dataset, facilitating future research in an important area of marine conservation.


Here's what US must do now to deter China military threat

FOX News

The Chinese Communist Party is a geopolitical cancer that will metastasize unless America can contain it with a once-in-a-generation investment in our national defense. Already, the CCP is actively colluding with Russia, prolonging Putin's war against Ukraine by blunting the impact of Western sanctions; it reaffirmed its support for Iran even after the deadly Oct. 7 attacks against Israel; and it has an explicit defense treaty with Kim Jung Un's North Korean dictatorship. To make matters even more dire, Chinese President Xi Jinping has instructed his People's Liberation Army to be ready to invade Taiwan by 2027. Chinese President Xi Jinping has instructed his People's Liberation Army to be ready to invade Taiwan by 2027. As George Washington counseled Congress in the nation's first ever inaugural address, "to be prepared for war is the most effectual means of preserving the peace."


Houthi Drone Strike Highlights Dilemmas for Israel

NYT > Middle East

One immediate, short-term response, some analysts said, might be a cease-fire deal between Hamas and Israel, a move that could halt attacks from Hamas's allies, like the Houthis and Hezbollah in Lebanon. While the Houthis' opposition to Israel long preceded the war in Gaza, the group had rarely attacked Israeli interests before it began. A truce in Gaza could "prompt some kind of a lull for a while" in Yemen and Lebanon, said Relik Shafir, a former general in the Israeli Air Force. But while mediators say they are edging closer to sealing a Gaza cease-fire, key gaps between Israel and Hamas remain, and parts of Prime Minister Benjamin Netanyahu's right-wing coalition oppose compromising on Hamas's main demands. In the long term, the Houthis also remain committed to Israel's total destruction and would most likely not be placated for long by a temporary truce in Gaza or an end to Israel's occupation of the West Bank. The Houthis are a Yemeni Shiite militia that over the past decade seized control of large parts of western Yemen, including its capital, Sana, and Red Sea coastline.


Israel defense minister says country will 'settle the score' after Houthi drone attack on Tel Aviv

FOX News

Israel's defense minister struck an ominous tone Friday after an Iranian-made drone fired by Houthi rebels in Yemen struck Tel Aviv, telling Israeli media that Jerusalem would "settle the score." "I held an operational situation assessment this morning to review the steps required to strengthen our defense arrays in light of events overnight, as well as the intelligence and operational activities required against those responsible for the attack," Israeli Minister of Defense Yoav Gallant said in a statement. "The year 2024 is marked by war. We must be prepared for every scenario and every arena." Israeli Minister of Defense Yoav Gallant sits with defense officials after a Yemen-based Houthi drone strike on Tel Aviv July 19, 2024.


Houthi drone strikes Tel Aviv: How significant is the attack?

Al Jazeera

Yemen's Houthi group has claimed responsibility for the drone that struck overnight in Tel Aviv, Israel, killing one person and injuring eight. Israeli media identified the dead man as 50-year-old Yevgeny Ferder, who had moved to Israel from Belarus at the beginning of the Russia-Ukraine war. Last night's strike is unique -- it's the first time the group is known to have hit Tel Aviv, though the Houthi have waged a continued campaign against targets they claim are linked to Israel since the ongoing devastating war on Gaza broke out in October. The drone struck in central Tel Aviv in the early hours of Friday morning. The site itself is thought to be close to a number of hotels, many hosting those displaced from Israel's northern border with Lebanon. A US embassy office is also close to the site of the attack.


Deadly explosion in Tel Aviv leaves one dead, more wounded

FOX News

First responders are on scene in Tel Aviv after a large explosion rocked the city in the middle of the night. The blast happened approximately one block from a U.S. embassy branch office. An explosion that rocked Tel Aviv overnight Thursday has left one person dead and several others wounded. Military officials say they believe the source of the explosion was a deadly drone attack, and Yemen's Houthi rebels have already claimed responsibility for a drone strike in the area near the U.S. embassy, the Associated Press reported. The drone was not intercepted despite it being identified prior to the explosion due to human error.


Drone attack on Israel's Tel Aviv leaves one dead, at least 10 injured

Al Jazeera

Yemen's Houthi fighters have claimed responsibility following a suspected drone attack on Israel's Tel Aviv, which killed one person and injured at least 10, according to reports. A spokesperson for the Houthi armed forces said in a post on social media on Friday that the Yemen-based group had "targeted'Tel Aviv' in occupied Palestine". The Israeli military said it had opened an investigation into the large explosion near the United States Embassy office in the city and would determine why the country's air defence systems were not activated to intercept the "aerial target". Israel's air force has increased patrols to "protect the country's skies", the military added in a post on social media. Israeli police said the body of a man was found in an apartment close to the explosion and that the circumstances were being investigated.


The Cardinality of Identifying Code Sets for Soccer Ball Graph with Application to Remote Sensing

arXiv.org Artificial Intelligence

In the context of satellite monitoring of the earth, we can assume that the surface of the earth is divided into a set of regions. We assume that the impact of a big social/environmental event spills into neighboring regions. Using Identifying Code Sets (ICSes), we can deploy sensors in such a way that the region in which an event takes place can be uniquely identified, even with fewer sensors than regions. As Earth is almost a sphere, we use a soccer ball as a model. We construct a Soccer Ball Graph (SBG), and provide human-oriented, analytical proofs that 1) the SBG has at least 26 ICSes of cardinality ten, implying that there are at least 26 different ways to deploy ten satellites to monitor the Earth and 2) that the cardinality of the minimum Identifying Code Set (MICS) for the SBG is at least nine. We then provide a machine-oriented formal proof that the cardinality of the MICS for the SBG is in fact ten, meaning that one must deploy at least ten satellites to monitor the Earth in the SBG model. We also provide machine-oriented proof that there are exactly 26 ICSes of cardinality ten for the SBG.