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Deep learning based classification of sheep behaviour from accelerometer data with imbalance

Information Processing in Agriculture 2023年第3期10卷 377-390页

作者： Kirk E.Turner Andrew Thompson Ian harris Mark Ferguson Ferdous Sohel Discipline of Information Technology Murdoch UniversityMurdochWA 6150Australia Centre for Crop and Food Innovation Food Futures InstituteMurdoch UniversityMurdochWA 6150Australia College of Science HealthEngineering and EducationMurdoch UniversityMurdochWA 6150Australia neXtgen Agri Saint MartinsChristchurch 8022New Zealand

Classification of sheep behaviour from a sequence of tri-axial accelerometer data has the potential to enhance sheep *** behaviour is inherently imbalanced(e.g.,more ruminating than walking)resulting in underperforming classification for the minority activities which hold *** works have not addressed class imbalance and use traditional machine learning techniques,e.g.,Random Forest(RF).We investigated Deep Learning(DL)models,namely,Long Short Term Memory(LSTM)and Bidirectional LSTM(BLSTM),appropriate for sequential data,from imbalanced *** data sets were collected in normal grazing conditions using jaw-mounted and earmounted *** to this study,alongside typical single classes,e.g.,walking,depending on the behaviours,data samples were labelled with compound classes,e.g.,walking_-*** number of steps a sheep performed in the observed 10 s time window was also recorded and incorporated in the *** designed several multi-class classification studies with imbalance being addressed using synthetic *** models achieved superior performance to traditional ML models,especially with augmented data(e.g.,4-Class+Steps:LSTM 88.0%,RF 82.5%).DL methods showed superior generalisability on unseen sheep(i.e.,F1-score:BLSTM 0.84,LSTM 0.83,RF 0.65).LSTM,BLSTM and RF achieved sub-millisecond average inference time,making them suitable for real-time *** results demonstrate the effectiveness of DL models for sheep behaviour classification in grazing *** results also demonstrate the DL techniques can generalise across different *** study presents a strong foundation of the development of such models for real-time animal monitoring.

关键词： Sheep behaviour classification Data synthesis Class imbalance Grazing sheep

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The 2+1 paradigm:an efficient algorithm for central reading of Mayo endoscopic subscores in global multicenter phase 3 ulcerative colitis clinical trials

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Gastroenterology Report 2016年第1期4卷 35-38,I0002页

作者： harris A.Ahmad Klaus Gottlieb Fez Hussain Rheumatology and Gastroenterology BioClinica Inc.PrincetonNJUSA Immunology and Internal Medicine Quintiles Inc.Research Triangle ParkNCUSA

Despite its importance and potential impact in clinical trials,central reading continues to be an under-represented topic in the literature about inflammatory bowel disease(IBD)clinical *** several IBD studies have incorporated central reading to date,none have fully detailed the specific methodology with which the reads were *** we outline key principles for designing an efficient central reading paradigm for an ulcerative colitis(UC)study that addresses regulatory,operational and clinical *** a step towards standardization of read methodology for the growing number of multicenter phase 3 clinical trials in IBD,we have applied these principles to the design of an optimal read methodology that we call the‘2þ1 paradigm.’The 2þ1 paradigm involves the use of both site and central readers,validated scoring criteria and multiple measures for blinding readers,all of which contribute to reducing bias and generating a reliable endoscopic subscore that reflects endoscopic disease *** paradigm can be utilized while maintaining a practical workflow compatible with an operationally feasible clinical *** 2þ1 paradigm represents a logical approach to endoscopic assessment in IBD clinical trials,one that should be considered attractive to prospective sponsors,contract research organizations,key opinion leaders and regulatory authorities and be ready for implementation and further evaluation.

关键词： ulcerative colitis endoscopy clinical trials

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Management of ejaculatory disorders in infertile men

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Asian Journal of Andrology 2012年第4期14卷 525-529页

作者： Yagil Barazani Peter J Stahl harris M Nagler Doron S Stember Beth Israel Medical Center and the Albert Einstein College of Medicine of Yeshiva University New YorkNew York 10003USA Department of Urology Columbia University Medical CenterNew YorkNY 10003USA

Ejaculatory dysfunction is a highly prevalent clinical condition that may be classified along a continuum that ranges from premature ejaculation （PE）, through retarded or delayed ejaculation （DE）, to complete anejaculation （AE）. Retrograde ejaculation （RE） represents a distinct entity in which ejaculate is expelled either partially or completely into the bladder. While DE and PE are significant sources of sexual dissatisfaction among men and their partners, patients with these disorders retain normal fertility in most cases. Conversely, men with AE and RE are unable to deliver sperm into the female genital tract and are therefore rendered subfertile. Therefore, in reviewing ejaculatory disorders as they relate to fertility, this paper will primarily focus on the diagnosis and management of AE and RE. Physiology, diagnostic strategies, pharmacological treatments, and procedural interventions relevant to AE and RE are discussed.

关键词： anejaculation delayed ejaculation ejaculatory dysfunction electroejaculation penile vibratory stimulation prematureejaculation retrograde ejaculation

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Surface texture and friction characteristics of diamond-ground concrete and asphalt pavements

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Journal of Traffic and Transportation Engineering(English Edition) 2016年第5期3卷 475-482页

作者： Shuo Li Dwayne harris Tim Wells Division of Research and Development Indiana Department of Transportation

Recently, diamond grinding has gained increasing attention as pavement preservation treatment to restore desired surface characteristics, particularly friction. Compared to other pavement preservation treatments such as surface overlays and high friction surface treat- ments, diamond grinding may cost less, save construction time, or require minimum maintenance. Diamond grinding produces longitudinal, continuous, and line-type texture that contains corrugations with evenly spaced ridges. The improved surface texture will immediately enhance pavement surface friction and reduce the possibility of hydroplaning in rainy weather. However, little information has been documented on the texture charac- teristics and long-term friction performance of diamond-ground pavements. A field evalu- ation was conducted to examine the surface texture and friction characteristics in diamond- ground concrete and asphalt pavements by the authors. Five pavement test sections, including two diamond-ground concrete pavements, one diamond-ground concrete bridge deck, one diamond-ground asphalt pavement, and one transversely tined concrete pave- ment, were selected for evaluation. Laser scanner testing was performed to capture both macro and microtexture profiles. Locked wheel testing was performed to measure the fric- tion numbers. The test results were examined and compared so as to evaluate two performances, after construction and long-term friction performance of diamond-ground pavements. It was found that longitudinal diamond grinding can provide durable, satisfactory surface friction performance for both concrete and asphalt pavements.

关键词： Concrete pavement Asphalt pavement Surface friction Diamond-grinding Macrotexture Microtexture

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Sexual medicine disparities between Asia and North America： commentary on male sexual dysfunction in Asia

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Asian Journal of Andrology 2011年第4期13卷 605-606页

作者： Benjamin F Katz Doron S Stember harris M Nagler Beth Israel Medical Center and the Albert Einstein College of Medicine of Yeshiva University 1300 Morris Park Avenue Bronx NY 10461 USA

In a recently published article in Asian Journal of Andrology, Ho et al.1 examine prevalence, attitudes, and treatment patterns related to sexual dysfunction in Asia and contrast them with those of Western society. They highlight the relative paucity of data with respect to erectile dysfunction （ED）, premature ejaculation, and hypogonadism in the Asian population.

关键词： Sexual North America

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Geomechanical properties will constrain CO_(2)injection into the lower Ordovician Rose Run sandstone deep saline reservoir,Appalachian Basin,Kentucky,USA

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第5期13卷 947-960页

作者： John Richard Bowersox Stephen F.Greb Junfeng Zhu David C.harris Kentucky Geological Survey University of KentuckyLexingtonKY40506-0107USA

The Kentucky Geological Survey(KGS)1 Hanson Aggregates stratigraphic research well,Carter County,Kentucky,USA,was drilled to a total depth of 1474 m as a field-scale test of potential CO2 storage reservoir properties in the Central Appalachian *** properties of the Rose Run sandstone(upper Ordovician Knox group)were tested for its suitability as a storage reservoir.A 9.8-m thick section of the Rose Run was penetrated at 1000 m drilled depth and a whole-diameter core and rotary sidewall cores were *** porosity and permeability measured in core plugs were 9.1%and 44.6 mD,*** vertical stress gradient calculated in the wellbore was 26 MPa/*** fractures in dolomites underlying and overlying the Rose Run follow the contemporary N53E Appalachian Basin stress *** Rose Run elastic geomechanical properties were calibrated to values measured in core plugs to evaluate its fracturing risk as a CO2 storage *** Young’s modulus and Poisson’s ratio values of the Rose Run were 45 GPa and 0.23,respectively,whereas Young’s modulus and Poisson’s ratio values were 77.1 GPa and 0.28,respectively,in the overlying Beekmantown dolomite,suggesting the Rose Run may fracture if overpressured during CO2 injection but be confined by the *** compressive strength measured in core plugs found the Rose Run and Beekmantown fractured at mean axial stresses of 156.5 MPa and 282.2 MPa,respectively,confirming the Beekmantown as suitable for confining CO2 injected into the Rose Run.A step-rate test was conducted in a mechanically-isolated 18.6-m interval bracketing the Rose *** Rose Run reservoir pressure was 9.3 MPa,and fracture gradient under injection was 13.6 MPa/km,suggesting step-rate testing before CO2 injection,and subsequent pressure monitoring to ensure *** the region around the KGS 1 Hanson Aggregates well is underpressured and adjacent to faulted Precambrian basement,further research is neede

关键词： Appalachian Basin Rose Run sandstone Geomechanics Carbon sequestration Step-rate testing

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The Vertex Euclidean Properties of Graphs

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Acta Mathematica Sinica,English Series 2022年第7期38卷 1185-1202页

作者： Zhen Bin GAO Meng WANG Sin Min LEE harris KWONG Shu Juan WANG College of Mathematical Sciences Harbin Engineering UniversityHarbin 150001P.R.China 1786 Plan Tree Drive UplandCA 91784USA Dept.of Math.Sci. SUNY FredoniaFredoniaNY 14063USA

A simple graph G=(V,E)is said to be vertex Euclidean if there exists a bijection f from V to{1,2,...,|V|}such that f(u)+f(v)>f(w)for each C3 subgraph with vertex set{u,v,w},where f(u) 详细信息

A simple graph G=(V,E)is said to be vertex Euclidean if there exists a bijection f from V to{1,2,...,|V|}such that f(u)+f(v)>f(w)for each C3 subgraph with vertex set{u,v,w},where f(u)

关键词： Vertex Euclidean graph vertex Euclidean deficiency total graph of simple graph Zykov graph

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Treatment of Helicobacter pylori

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World Journal of Gastroenterology 2001年第3期7卷 303-307页

作者： Adam harris Consultant Gastroenterologist Kent and Sussex HospitalTunbridge WellsKent TN4 8ATEngland

INTRODUCTIONUsing an evidence-based approach this review discusses the current treatment of Helicobacter pylori infection in patients with peptic ulcer disease, functional (non-ulcer)dyspepsia or gastro-oesophageal reflux disease (GORD).It also briefly addresses the potential role of eradication of H . pylori in preventing gastric cancer .

关键词： Anti-Bacterial Agents Helicobacter Infections Helicobacter pylori Humans Peptic Ulcer Virulence

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An Unusual, Three-Dimensionally Preserved, Large Hadrosauriform Pes Track from "Mid"-Cretaceous Jiaguan Formation of Chongqing, China

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Acta Geologica Sinica(English Edition) 2012年第2期86卷 304-312页

作者： XING Lida Phil R.BELL JeraldD.harris Philip J.CURRIE Department of Biological Sciences University of Alberta11455 Saskatchewan DriveEdmontonAlberta T6G 2E9Canada Key Laboratory of Evolutionary Systematics of Vertebrates Chinese Academy of SciencesPO Box 643100044 BeijingChina Pipestone Creek Dinosaur Initiative ClairmontAlberta TOH OWOCanada. Physical Sciences Department Dixie State College225 South 700 EastSt.GeorgeUtah 84770USA

Three-dimensional tracks provide unique insights into the locomotor mechanics of their track makers. An isolated, large hadrosauriform print attributable to Caririchnium lotus from the ＂mid＂-Cretaceous Lotus track site （Jiaguan Formation） in China permits reconstruction of the footfall, weight-bearing, and kick-off phases of the step cycle. Large-scale modifications of the pes during the step cycle indicate C. lotus trackmakers were capable of locomotory modifications in response to substrate consistency beyond the ＂expected＂ shift between bipedal and quadrupedal postures. An unusual curvature to the trace of one of the outer digits indicates substantial transverse mobility. The remaining digits demonstrate lesser degrees of transverse movement accompanied by extension of the digits during footfall. The absence of overprinted scale-scratch marks and toe drags are consistent with a vertical kick-off of the pes and concomitant flexion of the digits. This track suggests that pedal mobility in C. lotus track makers was greater than previously suspected and has implications for reconstructions of hadrosauriform locomotion.

关键词： hadrosauriform locomotion footprints Cretaceous step cycle

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Femoral shaft fractures in pediatric patients

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中华创伤骨科杂志 2012年第11期14卷 988-991页

作者： Ian harris 王簕杨云峰 AO Publishing Switzerland Clavadelerstrasse CH-7270 Davos Platz 广州医学院第三附属医院骨科上海同济大学同济医院骨科

SummaryEvidence is conflicting from two retrospective cohort studies to show whether titanium elastic nails or stainless steel nails are preferred in pediatric patients with femoral shaft *** study found the malunion rate was four times higher with titanium nails compared with stainless steel *** other study reported more complications after stainless steel nailing,and found time to healing and to full weight bearing favored the use of titanium *** regarding preference for either of these two nails cannot be made from the evidence in these two studies.根据现有2项回顾性队列研究提供的证据,对于小儿股骨干骨折患者,钛弹力钉与不锈钢钉比较何者疗效更佳,目前仍无定论.1项研究认为,当选择钛弹力钉治疗时,患儿发生骨折畸形愈合的几率要比选择不锈钢钉治疗时高4倍.但是,另1项研究则认为,选择不锈钢钉治疗后患儿术后并发症的发生率更高,而且愈合时间和患肢负重所需时间更长.因此,从目前2项研究的结论中仍无法明确两种内固定物何者疗效更优。

关键词：骨科学创伤临床治疗

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