Goto

Collaborating Authors

 Media


Semantic Structure based Query Graph Prediction for Question Answering over Knowledge Graph

arXiv.org Artificial Intelligence

Building query graphs from natural language questions is an important step in complex question answering over knowledge graph (Complex KGQA). In general, a question can be correctly answered if its query graph is built correctly and the right answer is then retrieved by issuing the query graph against the KG. Therefore, this paper focuses on query graph generation from natural language questions. Existing approaches for query graph generation ignore the semantic structure of a question, resulting in a large number of noisy query graph candidates that undermine prediction accuracies. In this paper, we define six semantic structures from common questions in KGQA and develop a novel Structure-BERT to predict the semantic structure of a question. By doing so, we can first filter out noisy candidate query graphs, and then rank the remaining candidates with a BERT-based ranking model. Extensive experiments on two popular benchmarks MetaQA and WebQuestionsSP (WSP) demonstrate the effectiveness of our method as compared to state-of-the-arts.


The Algorithm: AI-generated art raises tricky questions about ethics, copyright, and security

MIT Technology Review

Thanks to his distinctive style, Rutkowski is now one of the most commonly used prompts in the new open-source AI art generator Stable Diffusion, which was launched late last month--far more popular than some of the world's most famous artists, like Picasso. His name has been used as a prompt around 93,000 times. He thinks it could threaten his livelihood--and he was never given the choice of whether to opt in or out of having his work used this way. The story is yet another example of AI developers rushing to roll out something cool without thinking about the humans who will be affected by it. Stable Diffusion is free for anyone to use, providing a great resource for AI developers who want to use a powerful model to build products.


A video-game music biopic: We are OFK follows a virtual band trying to make it in LA

The Guardian

Gorillaz may be the most famous example of a virtual band, at least in the west. Elsewhere, virtual idol Hatsune Miku is omnipresent, her personality projected on to her by fans. Four-piece outfit OFK are different: before you've heard a note of their music, you're going to find out exactly who they are. The band itself is not real โ€“ it is an invention of the songwriters, composers and game designers working together at LA developer Team OFK โ€“ but the music is, and this is a novel and intriguing way to experience it. We Are OFK is a band biopic delivered over five animated episodes.


Games, Mysteries, and the Lure of QAnon

WIRED

QAnon is so sprawling, it's hard to know where people join. One week, it's the false rumor that 5G cell towers spread disease, another week it's Wayfair.com But QAnon's millions of followers often seem to begin their journey with the same refrain: "I've done my research." If you buy something using links in our stories, we may earn a commission. This helps support our journalism.


Artists begin selling AI-generated artwork on stock photography websites

#artificialintelligence

Seeking ways to "monetize" AI-generated art, some artists have already begun submitting their AI-generated pieces to stock photography websites like Shutterstock. Searches for "AI generated" or "Midjourney" (a popular image synthesis service) produce thousands of results on the site. In some cases, a portion of the artwork that isn't labeled as "AI generated" also appears to clearly match Midjourney's art style, which seems to be the most popular image synthesis tool on the site at the moment. As of press time, Shutterstock's terms of use do not prohibit the submission of AI-generated artwork. Shutterstock contributors receive a percentage of the licensing fee that varies from 15 to 40 percent of what Shutterstock makes from the content.


FoVolNet: Fast Volume Rendering using Foveated Deep Neural Networks

arXiv.org Artificial Intelligence

Volume data is found in many important scientific and engineering applications. Rendering this data for visualization at high quality and interactive rates for demanding applications such as virtual reality is still not easily achievable even using professional-grade hardware. We introduce FoVolNet -- a method to significantly increase the performance of volume data visualization. We develop a cost-effective foveated rendering pipeline that sparsely samples a volume around a focal point and reconstructs the full-frame using a deep neural network. Foveated rendering is a technique that prioritizes rendering computations around the user's focal point. This approach leverages properties of the human visual system, thereby saving computational resources when rendering data in the periphery of the user's field of vision. Our reconstruction network combines direct and kernel prediction methods to produce fast, stable, and perceptually convincing output. With a slim design and the use of quantization, our method outperforms state-of-the-art neural reconstruction techniques in both end-to-end frame times and visual quality. We conduct extensive evaluations of the system's rendering performance, inference speed, and perceptual properties, and we provide comparisons to competing neural image reconstruction techniques. Our test results show that FoVolNet consistently achieves significant time saving over conventional rendering while preserving perceptual quality.


X-Risk Analysis for AI Research

arXiv.org Artificial Intelligence

Artificial intelligence (AI) has the potential to greatly improve society, but as with any powerful technology, it comes with heightened risks and responsibilities. Current AI research lacks a systematic discussion of how to manage long-tail risks from AI systems, including speculative long-term risks. Keeping in mind the potential benefits of AI, there is some concern that building ever more intelligent and powerful AI systems could eventually result in systems that are more powerful than us; some say this is like playing with fire and speculate that this could create existential risks (x-risks). To add precision and ground these discussions, we provide a guide for how to analyze AI x-risk, which consists of three parts: First, we review how systems can be made safer today, drawing on time-tested concepts from hazard analysis and systems safety that have been designed to steer large processes in safer directions. Next, we discuss strategies for having long-term impacts on the safety of future systems. Finally, we discuss a crucial concept in making AI systems safer by improving the balance between safety and general capabilities. We hope this document and the presented concepts and tools serve as a useful guide for understanding how to analyze AI x-risk.


Twitter Topic Classification

arXiv.org Artificial Intelligence

Social media platforms host discussions about a wide variety of topics that arise everyday. Making sense of all the content and organising it into categories is an arduous task. A common way to deal with this issue is relying on topic modeling, but topics discovered using this technique are difficult to interpret and can differ from corpus to corpus. In this paper, we present a new task based on tweet topic classification and release two associated datasets. Given a wide range of topics covering the most important discussion points in social media, we provide training and testing data from recent time periods that can be used to evaluate tweet classification models. Moreover, we perform a quantitative evaluation and analysis of current general- and domain-specific language models on the task, which provide more insights on the challenges and nature of the task.


Setting the rhythm scene: deep learning-based drum loop generation from arbitrary language cues

arXiv.org Artificial Intelligence

Generative artificial intelligence models can be a valuable aid to music composition and live performance, both to aid the professional musician and to help democratize the music creation process for hobbyists. Here we present a novel method that, given an English word or phrase, generates 2 compasses of a 4-piece drum pattern that embodies the "mood" of the given language cue, or that could be used for an audiovisual scene described by the language cue. We envision this tool as composition aid for electronic music and audiovisual soundtrack production, or an improvisation tool for live performance. In order to produce the training samples for this model, besides manual annotation of the "scene" or "mood" terms, we have designed a novel method to extract the consensus drum track of any song. This consists of a 2-bar, 4-piece drum pattern that represents the main percussive motif of a song, which could be imported into any music loop device or live looping software. These two key components (drum pattern generation from a generalizable input, and consensus percussion extraction) present a novel approach to computer-aided composition and provide a stepping stone for more comprehensive rhythm generation.


Computational Sarcasm Analysis on Social Media: A Systematic Review

arXiv.org Artificial Intelligence

Sarcasm can be defined as saying or writing the opposite of what one truly wants to express, usually to insult, irritate, or amuse someone. Because of the obscure nature of sarcasm in textual data, detecting it is difficult and of great interest to the sentiment analysis research community. Though the research in sarcasm detection spans more than a decade, some significant advancements have been made recently, including employing unsupervised pre-trained transformers in multimodal environments and integrating context to identify sarcasm. In this study, we aim to provide a brief overview of recent advancements and trends in computational sarcasm research for the English language. We describe relevant datasets, methodologies, trends, issues, challenges, and tasks relating to sarcasm that are beyond detection. Our study provides well-summarized tables of sarcasm datasets, sarcastic features and their extraction methods, and performance analysis of various approaches which can help researchers in related domains understand current state-of-the-art practices in sarcasm detection.