NEW YORK – Facebook has paid contractors to transcribe audio clips from users of its Messenger service, raising privacy concerns for a company with a history of privacy lapses. The practice was, until recently, common in the tech industry. Companies say the practice helps improve their services. But users aren't typically aware that humans and not just computers are reviewing audio. Transcriptions done by humans raise bigger concerns because of the potential of rogue employees or contractors leaking details.
Search engines present fix-length passages from documents ranked by relevance against the query. In this paper, we present and compare novel, language-model based methods for extracting variable length document snippets by real-time processing of documents using the query issued by the user. With this extra level of information, the returned snippets are considerably more informative. Unlike previous work on passage retrieval which relies on searching relevant segments for filtering of preoccupied passages, we focus on query-informed segmentation to extract context-aware relevant snippets with variable length. In particular, we show that, when informed through an appropriate relevance language model, curvature analysis and Hidden Markov model (HMM) based content segmentation techniques can facilitate to extract relevant document snippets.
In 1990, when the architecture professor Ocean Howell was a teen-ager in Carlsbad, California, he spent two days being filmed riding a skateboard with an injured ankle. The footage appeared in "Risk It," a video produced by Santa Cruz Skateboards; because he was skating on a sprain, Howell's restrained style (making use of low curbs, parking bumpers, and yards of flat ground) mesmerized young fans nationwide. But the clip remained fabled for another reason: Howell's segment included an addictive snippet of a song called "Bugs," by an unknown band called the Eclipse. Obsessives have sought out the amateur recording, and any information on the band, ever since. "That's awesome to hear that people still remember that stuff," Howell told the blog The Chrome Ball Incident this month; the interviewer had described the band as "the skate nerd's holy grail."