{ "story_id": "2112f048625d2f842f24d49d2e99615d", "desk": "drm3", "revision": 1, "published_at": "2026-09-02T04:00:00.000Z", "content_hash": "bb00421b35ed0050989e52d05d967a95692b1abae38cc225a01c9cc7cd9bf775", "hash_basis": "sha256 over `headline\\ndek\\nprose`, plus `\\n` + the canonical citations JSON when any source is placed, plus `\\n#blog` for blogs", "basis": { "headline": "QABBA Compresses Time-Series Data for LLM Analysis", "dek": "Quantized ABBA (QABBA) converts time-series data into symbolic sequences for efficient LLM processing.", "prose": "Researchers propose Quantized ABBA (QABBA), a quantized version of Adaptive Brownian Bridge-based Aggregation (ABBA), to convert long numerical series into short symbolic sequences. [^1]\n\nIn 1991, the first Berlin 'Mauerschützen' trial began at the Berlin Regional Court against four former East German border guards who in 1989 shot 20-year-old Chris Gueffroy during an escape attempt. [^2]\n\nIn 2016, South Korean electronics firm Samsung recalled its Galaxy Note 7 smartphones after batteries caught fire and exploded, and completely stopped production on October 11, 2016. [^3]\n\nBy quantizing the symbolic centers, QABBA reduces the parameter footprint and enables integer arithmetic while maintaining high reconstruction quality. [^4]\n\nExperiments on the Monash regression archive, UCR Time Series Classification Archive, and UEA Multivariate Time Series Classification Archive demonstrate a practical trade-off among storage, reconstruction accuracy and downstream predictive performance. [^5]\n\nThe study establishes a dimension-free bound on the excess error of each segment, a time-domain reconstruction-error bound, and a stability condition for symbolic assignment. [^6]\n\nIn the 1991 Mauerschützen trial the shooter was sentenced to three and a half years in prison, three co-defendants received suspended sentences, and in 1994 the Federal Court of Justice (Bundesgerichtshof) overturned the verdict because the soldiers were at the bottom of the hierarchy; subsequent trials of border guards imposed relatively light sentences. [^7]\n\nOn September 2, 2021, Swedish pop group ABBA announced a new studio album titled 'Voyage', nearly 40 years after the band split, featuring members Agnetha Fältskog, Björn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. [^8]", "cited": "[{\"statement\":\"Researchers propose Quantized ABBA (QABBA), a quantized version of Adaptive Brownian Bridge-based Aggregation (ABBA), to convert long numerical series into short symbolic sequences.\",\"source\":\"arXiv.org\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-02T04:00:00.000Z\",\"publisher_count\":1,\"sources\":[\"arXiv.org\"]},{\"statement\":\"In 1991, the first Berlin 'Mauerschützen' trial began at the Berlin Regional Court against four former East German border guards who in 1989 shot 20-year-old Chris Gueffroy during an escape attempt.\",\"source\":\"DIE ZEIT\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-01T21:55:04.000Z\",\"publisher_count\":1,\"sources\":[\"DIE ZEIT\"]},{\"statement\":\"In 2016, South Korean electronics firm Samsung recalled its Galaxy Note 7 smartphones after batteries caught fire and exploded, and completely stopped production on October 11, 2016.\",\"source\":\"DIE ZEIT\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-01T21:55:04.000Z\",\"publisher_count\":1,\"sources\":[\"DIE ZEIT\"]},{\"statement\":\"By quantizing the symbolic centers, QABBA reduces the parameter footprint and enables integer arithmetic while maintaining high reconstruction quality.\",\"source\":\"arXiv.org\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-02T04:00:00.000Z\",\"publisher_count\":1,\"sources\":[\"arXiv.org\"]},{\"statement\":\"Experiments on the Monash regression archive, UCR Time Series Classification Archive, and UEA Multivariate Time Series Classification Archive demonstrate a practical trade-off among storage, reconstruction accuracy and downstream predictive performance.\",\"source\":\"arXiv.org\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-02T04:00:00.000Z\",\"publisher_count\":1,\"sources\":[\"arXiv.org\"]},{\"statement\":\"The study establishes a dimension-free bound on the excess error of each segment, a time-domain reconstruction-error bound, and a stability condition for symbolic assignment.\",\"source\":\"arXiv.org\",\"instrument\":\"News\",\"claim_key\":null,\"published_at\":\"2026-09-02T04:00:00.000Z\",\"publisher_count\":1,\"sources\":[\"arXiv.org\"]},{\"statement\":\"In the 1991 Mauerschützen trial the shooter was sentenced to three and a half years in prison, three co-defendants received suspended sentences, and in 1994 the Federal Court of Justice (Bundesgerichtshof) overturned the verdict because the soldiers were at the bottom of the hierarchy; 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