137 research outputs found
MagicBrush: A Manually Annotated Dataset for Instruction-Guided Image Editing
Text-guided image editing is widely needed in daily life, ranging from
personal use to professional applications such as Photoshop. However, existing
methods are either zero-shot or trained on an automatically synthesized
dataset, which contains a high volume of noise. Thus, they still require lots
of manual tuning to produce desirable outcomes in practice. To address this
issue, we introduce MagicBrush (https://osu-nlp-group.github.io/MagicBrush/),
the first large-scale, manually annotated dataset for instruction-guided real
image editing that covers diverse scenarios: single-turn, multi-turn,
mask-provided, and mask-free editing. MagicBrush comprises over 10K manually
annotated triplets (source image, instruction, target image), which supports
trainining large-scale text-guided image editing models. We fine-tune
InstructPix2Pix on MagicBrush and show that the new model can produce much
better images according to human evaluation. We further conduct extensive
experiments to evaluate current image editing baselines from multiple
dimensions including quantitative, qualitative, and human evaluations. The
results reveal the challenging nature of our dataset and the gap between
current baselines and real-world editing needs.Comment: NeurIPS 2023; Website: https://osu-nlp-group.github.io/MagicBrush
A Trembling House of Cards? Mapping Adversarial Attacks against Language Agents
Language agents powered by large language models (LLMs) have seen exploding
development. Their capability of using language as a vehicle for thought and
communication lends an incredible level of flexibility and versatility. People
have quickly capitalized on this capability to connect LLMs to a wide range of
external components and environments: databases, tools, the Internet, robotic
embodiment, etc. Many believe an unprecedentedly powerful automation technology
is emerging. However, new automation technologies come with new safety risks,
especially for intricate systems like language agents. There is a surprisingly
large gap between the speed and scale of their development and deployment and
our understanding of their safety risks. Are we building a house of cards? In
this position paper, we present the first systematic effort in mapping
adversarial attacks against language agents. We first present a unified
conceptual framework for agents with three major components: Perception, Brain,
and Action. Under this framework, we present a comprehensive discussion and
propose 12 potential attack scenarios against different components of an agent,
covering different attack strategies (e.g., input manipulation, adversarial
demonstrations, jailbreaking, backdoors). We also draw connections to
successful attack strategies previously applied to LLMs. We emphasize the
urgency to gain a thorough understanding of language agent risks before their
widespread deployment
Model of a multiverse providing the dark energy of our universe
It is shown that the dark energy presently observed in our universe can be
regarded as the energy of a scalar field driving an inflation-like expansion of
a multiverse with ours being a subuniverse among other parallel universes. A
simple model of this multiverse is elaborated: Assuming closed space geometry,
the origin of the multiverse can be explained by quantum tunneling from
nothing; subuniverses are supposed to emerge from local fluctuations of
separate inflation fields. The standard concept of tunneling from nothing is
extended to the effect that in addition to an inflationary scalar field, matter
is also generated, and that the tunneling leads to an (unstable) equilibrium
state. The cosmological principle is assumed to pertain from the origin of the
multiverse until the first subuniverses emerge. With increasing age of the
multiverse, its spatial curvature decays exponentially so fast that, due to
sharing the same space, the flatness problem of our universe resolves by
itself. The dark energy density imprinted by the multiverse on our universe is
time-dependent, but such that the ratio of its mass
density and pressure (times ) is time-independent and assumes a value
with arbitrary . can be chosen so
small, that the dark energy model of this paper can be fitted to the current
observational data as well as the cosmological constant model.Comment: 32 pages, 4 figure
Nonmalignant Late Effects in Survivors of Partially Matched Donor Hematopoietic Stem Cell Transplantation
AbstractHuman leukocyte antigen (HLA) partially matched related donor (PMRD) hematopoietic stem cell transplantation (HSCT) is an effective option for hematological malignancies. In this study, the nonmalignant late effects of PMRD HSCT were evaluated and compared with HLA-identical sibling donor (ISD) HSCT. Three hundred thirteen patients (ISD, n = 160; PMRD, n = 153) who survived at least 6 months and received regular follow-up examinations after their HSCT were enrolled. The 5-year cumulative incidence (±SE) of at least one late effect and multiple late effects was 47.30% ± .17% versus 58.21% ± .16% (P = .134) and 17.97% ± .10% versus 34.28% ± .15% (P = .001) for PMRD HSCT recipients versus ISD HSCT recipients, respectively. The cumulative incidence of keratoconjunctivitis sicca, periodontitis, ankylosis, myalgia, and nephrotic syndrome was lower among PMRD HSCT recipients compared with ISD HSCT recipients. Severe chronic graft-versus-host disease, multiple pre-HSCT chemotherapy cycles, female donor, and older age were risk factors for at least one late effect. Female donor, older age, and long-term immunosuppressive therapy were associated with multiple late effects. In summary, PMRD HSCT recipients have a lower risk of late effects compared with ISD HSCT recipients, possibly due to differences in protocols for graft-versus-host disease prophylaxis, and long-term follow-up after transplantation is recommended
Exposures to particulate matters and childhood sleep disorders—A large study in three provinces in China
Objectives: Evidence on the link between long-term ambient particulate matter (PM) exposures and childhood sleep disorders were scarce. We examined the associations between long-term exposures to PM2.5 and PM1 (PM with an aerodynamic equivalent diameter <2.5 μm and <1 μm, respectively) with sleep disorders in children. Methods: We performed a population-based cross-sectional survey in 177,263 children aged 6 to 18 years in 14 Chinese cities during 2012–2018. A satellite-based spatiotemporal model was employed to estimate four-year annual average PM2.5 and PM1 exposures at residential and school addresses. Parents or guardians completed a checklist using the Sleep Disturbance Scale for Children. We estimated the associations using generalized linear mixed models with adjustment for characteristics of children, parents, and indoor environments. Results: Long-term PM2.5 and PM1 exposures were positively associated with odds of sleep disorders for almost all domains. For example, increments in PM2.5 and PM1 per 10 μg/m3 were associated with odds ratios of global sleep disorder of 1.24 (95 % confidence interval [CI]: 1.14, 1.35) and 1.31 (95 %CI: 1.18, 1.46), respectively. Similar results were observed for subtypes of sleep disorder. These associations were heterogeneous regionally, with stronger associations among children residing in southeast region than in northeast and northwest regions. Moreover, larger estimates of PM1 were found than that of PM2.5 in southeast region. Conclusion: Long-term PM2.5 and PM1 exposures are independently associated with higher risks of childhood sleep disorders, and these associations vary by geographical region
Segmental correction of adolescent idiopathic scoliosis by all-screw fixation method in adolescents and young adults. minimum 5 years follow-up with SF-36 questionnaire
<p>Abstract</p> <p>Background</p> <p>In our institution, the fixation technique in treating idiopathic scoliosis was shifted from hybrid fixation to the all-screw method beginning in 2000. We conducted this study to assess the intermediate -term outcome of all-screw method in treating adolescent idiopathic scoliosis (AIS).</p> <p>Methods</p> <p>Forty-nine consecutive patients were retrospectively included with minimum of 5-year follow-up (mean, 6.1; range, 5.1-7.3 years). The average age of surgery was 18.5 ± 5.0 years. We assessed radiographic measurements at preoperative (Preop), postoperative (PO) and final follow-up (FFU) period. Curve correction rate, correction loss rate, complications, accuracy of pedicle screws and SF-36 scores were analyzed.</p> <p>Results</p> <p>The average major curve was corrected from 58.0 ± 13.0° Preop to 16.0 ± 9.0° PO(<it>p </it>< 0.0001), and increased to 18.4 ± 8.6°(<it>p </it>= 0.12) FFU. This revealed a 72.7% correction rate and a correction loss of 2.4° (3.92%). The thoracic kyphosis decreased little at FFU (22 ± 12° to 20 ± 6°, (<it>p </it>= 0.25)). Apical vertebral rotation decreased from 2.1 ± 0.8 PreOP to 0.8 ± 0.8 at FFU (Nash-Moe grading, <it>p </it>< 0.01). Among total 831 pedicle screws, 56 (6.7%) were found to be malpositioned. Compared with 2069 age-matched Taiwanese, SF-36 scores showed inferior result in 2 variables: physical function and role physical.</p> <p>Conclusion</p> <p>Follow-up more than 5 years, the authors suggest that all-screw method is an efficient and safe method.</p
Effects of Preventive Acupuncture and Moxibustion on Fat Accumulation, Blood Lipid, and Uterus E
Objective. To observe the effect of preventive acupuncture and moxibustion on blood lipid of menopause rats. Methods. Seventy 10-month-old SD rats with estrous cycle disorders were divided into three control groups and four treatment groups (n=10/group) and another ten 3.5-month-old female SD rats were chosen as young control group. Preventive acupuncture and moxibustion were applied at Guanyuan (CV 4). Body weight growth rate has been recorded. Plasma total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL), and high density lipoprotein (HDL) levels and uterus E2 level were measured. Results. Compared to young control group, plasma TC and LDL increased and uterus E2 reduced significantly in 12-month-old control group. Compared to 12-month-old control group, plasma TC and LDL level and body weight growth rate decreased while HDL level increased remarkably in preventive acupuncture 12-month-old group. Compared to 14-month-old control group, plasma TC level and body weight growth rate decreased remarkably in preventive moxibustion 14-month-old group. Conclusions. Preventive acupuncture and moxibustion can significantly decrease the plasma TG and LDL, increase the plasma HDL, and prevent fat accumulation. Our finding suggests that preventive acupuncture and moxibustion have beneficial effects on blood lipid. Different treatment effects were found between preventive acupuncture and preventive moxibustion
Recommended from our members
A Genome Wide Association Study Identifies Common Variants Associated with Lipid Levels in the Chinese Population
Plasma lipid levels are important risk factors for cardiovascular disease and are influenced by genetic and environmental factors. Recent genome wide association studies (GWAS) have identified several lipid-associated loci, but these loci have been identified primarily in European populations. In order to identify genetic markers for lipid levels in a Chinese population and analyze the heterogeneity between Europeans and Asians, especially Chinese, we performed a meta-analysis of two genome wide association studies on four common lipid traits including total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL) and high-density lipoprotein cholesterol (HDL) in a Han Chinese population totaling 3,451 healthy subjects. Replication was performed in an additional 8,830 subjects of Han Chinese ethnicity. We replicated eight loci associated with lipid levels previously reported in a European population. The loci genome wide significantly associated with TC were near DOCK7, HMGCR and ABO; those genome wide significantly associated with TG were near APOA1/C3/A4/A5 and LPL; those genome wide significantly associated with LDL were near HMGCR, ABO and TOMM40; and those genome wide significantly associated with HDL were near LPL, LIPC and CETP. In addition, an additive genotype score of eight SNPs representing the eight loci that were found to be associated with lipid levels was associated with higher TC, TG and LDL levels (P = 5.52×10-16, 1.38×10-6 and 5.59×10-9, respectively). These findings suggest the cumulative effects of multiple genetic loci on plasma lipid levels. Comparisons with previous GWAS of lipids highlight heterogeneity in allele frequency and in effect size for some loci between Chinese and European populations. The results from our GWAS provided comprehensive and convincing evidence of the genetic determinants of plasma lipid levels in a Chinese population
- …