数据挖掘中信息颗粒及其构造

为在海量的数据仓库中搜索稳定的、有意义的且易于表示的知识模式，简要介绍了数据挖掘的任务、分类及智能计算方法的作用，提出了信息颗粒的概念，信息颗粒的引入，使人们更容易地理解各种复杂数据所隐含的意义，对数据进行模块化处理，从而降低运算的复杂性，起到信息综合、信息压缩的作用，另外，根据模糊性理论构造和管理信息颗粒，用模糊集对信息颗粒进行量化表示，计算信息颗粒度，针对具体问题根据兴趣度灵活而有效地选择信息粒度，使它们有效地覆盖所研究的整个数据领域，最后，讨论了颗粒间的各种关系，并人出了信息颗粒在数据挖掘中的进一步作用。     

数据挖掘中信息颗粒及其构造

为在海量的数据仓库中搜寻稳定的、有意义的且易于表示的知识模式 ,简要介绍了数据挖掘的任务、分类及智能计算方法的作用 ,提出了信息颗粒的概念 .信息颗粒的引入 ,使人们更容易地理解各种复杂数据所隐含的意义 ,对数据进行模块化处理 ,从而降低运算的复杂性 ,起到信息综合、信息压缩的作用 .另外 ,根据模糊性理论构造和管理信息颗粒 ,用模糊集对信息颗粒进行量化表示 ,计算信息颗粒度 ,针对具体问题根据兴趣度灵活而有效地选择信息粒度 ,使它们有效地覆盖所研究的整个数据领域 .最后 ,讨论了颗粒间的各种关系 ,并给出了信息颗粒在数据挖掘中的进一步作用 .     

基于粗糙信息颗粒的数据挖掘方法研究

大型的数据库和数据仓库中的数据往往是有噪声和不一致的,应用经典的粗糙集理论对其进行数据挖掘处理时,效果不够理想.引入信息颗粒的概念,给出了属性子集引导的信息颗粒的构造方法及基于信息颗粒的知识描述,并应用粗糙集的扩展模型讨论知识的粗糙度问题,提出了基于粗糙信息颗粒的属性约简算法,该算法在给定最小置信度阈值的情况下,可实现对不一致数据集的简洁知识提取.图1,表2,参8.     

基于S-粗集信息的隐藏与还原

运用S-粗集的属性颗粒特征对信息进行加密,并验证了它的合理性,从而达到信息的保密性,成为一种更为有效的加密方法。     

信息系统函数依赖的信息颗粒原理与计算

提出了一种利用信息颗粒的位表示(bit representations)来分析信息系统函数依赖的新方法。研究了信息颗粒原理、粒化计算和面向机器的数据挖掘模型，利用位表示阐述了信息系统函数依赖、恒等依赖、部分依赖的判定原理，得出了与函数依赖相关的命题，并用相应的算法验证了所提方法。该方法可以快速判定和度量信息系统的函数依赖关系，对于信息颗粒采用其位表示，使得数据格式更接近机器的内部表示，且能够直接挖掘信息系统所蕴涵的模式。     

论信息意识与信息服务

本文分析了图书馆读者少的原因有两方法：一是读者自身信息意识较低；二是图书馆信息服务开展不够，由此探讨信息意识与信息服务的关系，并就信息意识的培养和提高图书馆信息服务质量提出几点措施。     

高校健美操教师信息素养的影响因素及对策研究——以苏南5城市20所高校为例

采用文献资料法、问卷调查法、访谈法等多种研究方法,对影响健美操教师专业信息素养和科研信息素养的因素进行调查与分析,并提出提高普通高校健美操教师信息素养水平的发展对策.     

我国体育信息网络化评价指标体系研究

运用文献法,逻辑法,制定我国体育信息网络化水平测算指标的原则。结合体育信息标准化的主要内容及体育信息交换标准,对我国体育信息网络化评价指标体系进行较为系统的归纳。     

对有关信息法的一些认识

本文对信息法制定应解决的问题、信息法的立法原则、调整对象、信息法应成为一个独立的部门法等有关问题谈了自己的认识.     

基于ESMD的浓相气力输送颗粒静电信号分析及速度测量

针对浓相气力输送中颗粒相的复杂流动特性,采用极点对称模态分解方法分析静电环状和弧状阵列信号.研究了多种工况下输送系统启停过程和过渡过程中不同分解模态静电信号的能量和频率分布信息特性,提出了一种新的浓相气力输送颗粒速度测量方法,并进行实验验证.研究结果表明,环状电极静电信号的能量分布信息能够用来判断输送系统在启停过程中颗粒流动的稳定性;弧状电极静电信号的能量信息可用来判断管道内颗粒相的分布情况.文中提出的静电信号瞬时频率颗粒速度测量方法相比于空间滤波测速法,其特征系数的相对标准差至少降低58%,表明该速度测量方法可以稳定并准确测量浓相气力输送颗粒速度.     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.