Adding only retained reasoning and compaction, GPT-5.6 Sol’s ARC-AGI-3 score tripled from 13.3% to 38.3%.
比 AVO 的满分更有说服力：只动“保留推理”和“上下文压缩”两个开关，基线同源、变量可数，这才是消融实验该长的样子。但同样只在公开集上，且起点 13.3% 很低——低分区的三倍不能线性外推到高分区，压缩带来的收益通常随基线上升而衰减。
8 Matching Annotations
- Last 7 days
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www.latent.space www.latent.space
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developer.nvidia.com developer.nvidia.com
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This should not be interpreted as a controlled ablation: the two systems differ in agent backend, observation representation, memory, context management, and other implementation details.
全文最该被引用的一句：NVIDIA 自己先声明这不是受控消融。也就是说 12% 的动作数优势里，后端模型、观测表示、记忆、上下文管理四个变量同时在变，无法归因给任何单一设计。读跑分新闻时，这类作者自认的免责声明信息量往往大于标题数字。
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- Apr 2026
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accessmedicine.mhmedical.com accessmedicine.mhmedical.com
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Treatment of superficial vein reflux (see Varicose Veins, above) has been shown to decrease the recurrence rate of venous ulcers. Where there is substantial obstruction of the femoral or popliteal deep venous system, superficial varicosities supply the venous return and should not be removed.
Failure of venous insufficiency ulcerations to heal is most often due to inconsistent use of first-line treatment methods. Ongoing control of edema is essential to prevent recurrent ulceration; the use of compression stockings following ulcer healing is critical, with recurrence rates 2–20 times higher if compression stockings are not used
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- Duplex ultrasound evaluation should assess blood flow direction, venous reflux, and venous obstruction, and include examination of the deep venous system, great saphenous vein (GSV), small saphenous vein (SSV) and its thigh extension (Giacomini vein), accessory saphenous veins, and perforating veins.
- Endovascular interventions for PTS—including percutaneous transluminal venoplasty and stenting—are reserved for select patients with significant iliofemoral obstruction who have failed conservative management. [7] These procedures require careful patient selection and standardized criteria. The role of superficial venous ablation in PTS patients with concomitant superficial reflux remains controversial and should be approached cautiously, as the underlying deep venous pathology may limit benefit
- Management of secondary varicose veins from post-thrombotic syndrome (PTS) is fundamentally different and more challenging. Compression therapy, lifestyle modifications, and symptom management form the cornerstone of PTS treatment. [4-8] Elastic compression stockings (20-30 mm Hg), leg elevation, weight loss, and exercise constitute the primary therapeutic approach
- The examination also identifies patterns of disease that have treatment implications. Axial reflux is defined as uninterrupted retrograde flow from groin to calf and can occur in either superficial or deep systems. [4] Junctional reflux is limited to the saphenofemoral or saphenopopliteal junction, while segmental reflux occurs in a portion of a truncal vein. [4] Understanding whether reflux originates from superficial junctions versus deep venous incompetence fundamentally changes treatment planning, as superficial disease is amenable to ablation while deep disease typically requires conservative management
- Venography is recommended primarily in patients with post-thrombotic disease, especially when intervention is planned, as it provides greater anatomic detail than duplex ultrasonograph
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- Mar 2026
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accessmedicine.mhmedical.com accessmedicine.mhmedical.com
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Venoactive drugs (diosmin, hesperidin, horse chestnut seed extract) may be considered as adjuncts to compression for symptomatic relief in countries where available
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Endovenous ablation is contraindicated or relatively unsuitable when venous anatomy precludes catheter-based treatment, specifically: aneurysmal dilation of the GSV close to the saphenofemoral junction, subcutaneous location of truncal veins above the saphenous fascia and close to the skin, and significant tortuosity of the GSV or SSV. [1] In these scenarios, high ligation and stripping is recommended as the preferred alternative (grade 1 strong recommendation
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Endovenous Thermal Ablation (RFA/EVLA)
Relative contraindications include inappropriate vein size, with veins <2 mm and >15 mm representing potential contraindications for RFA specifically. [1] A history of superficial thrombophlebitis resulting in a partially obstructed saphenous vein may preclude thermal ablation. [1] Significant tortuosity of the GSV on duplex examination can make catheter delivery difficult.
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- Vein diameter: Thermal ablation (EVLA or RFA) is preferred for large veins >10 mm in diameter, as nonthermal techniques show lower success rates in this population. [5] Conversely, veins <2 mm may not be suitable for some thermal ablation devices. [6] Vein location and depth: Veins located <0.5 cm from the skin surface have increased risk of thermal injury with traditional thermal ablation. [5] For these superficial veins, nonthermal techniques (cyanoacrylate, mechanochemical ablation) or miniphlebectomy/limited stripping are preferred. [5] Below-knee reflux: Patients with below-knee GSV reflux benefit from ablation to the lowest point of reflux, but nonthermal techniques are preferred to avoid thermal nerve injury.
- Thrombotic Risk Stratification Both surgical and endovenous approaches carry VTE risk, but surgery has substantially higher rates. Thrombotic complications after isolated endovenous ablation are uncommon (<1% for DVT and PE), whereas patients undergoing open procedures such as high ligation and stripping with phlebectomy may experience VTE rates as high as 6.25%. [2] Concomitant phlebectomy of tributaries has been identified as an independent risk factor for VTE development. [2] For high-risk patients undergoing endovenous ablation, pharmacological thromboprophylaxis is suggested (grade 2 weak recommendation). [2] Risk stratification using tools like the Caprini score may identify patients at elevated risk, with those scoring ≥7 potentially benefiting from chemoprophylaxis.
- Special considerations apply to below-knee GSV ablation, where nonthermal techniques are preferred to avoid thermal nerve injury. [3] For large nonaneurysmal saphenous veins >10 mm, thermal ablation with EVLA or RFA should be performed rather than nonthermal techniques. [3]
- Anatomic contraindications include saphenous veins located <0.5 cm from the skin surface, which carry high risk of skin burns, hyperpigmentation, and induration despite tumescent anesthesia
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- Feb 2023
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arxiv.org arxiv.org
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Ul2 poses lots of experiments comparing different pretraining approaches. Sequential, span corruption, to r,s,x denoiser Lots of ablation study
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- Apr 2019
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www.ncbi.nlm.nih.gov www.ncbi.nlm.nih.gov
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