The paper builds YearGuessr, a giant, worldwide photo-and-text dataset of 55,546 buildings with their construction years (1001–2024), GPS, and popularity (page views).
Large language models can say things that sound right but aren’t supported by the given document; this is called a faithfulness hallucination.
Skyra is a detective-style AI that spots tiny visual mistakes (artifacts) in videos to tell if they are real or AI-generated, and it explains its decision with times and places in the video.