作者: 思想流動 時間: 2025-3-21 22:19
Ernesto San Martín,Paul De Boeck. emerged recently to solve the interoperability problem. UDDI and ebXML are the leading standards in the area of e-commerce that provide different solutions for interoperability. UDDI standard provides a service based solution that proposes a registry standard for companies to publish their service作者: IRS 時間: 2025-3-22 03:41 作者: 食料 時間: 2025-3-22 06:25 作者: 宴會 時間: 2025-3-22 11:05 作者: squander 時間: 2025-3-22 16:54
Minjeong Jeon,Karen Draney,Mark Wilsontermining whether two offers refer to the same product involves extracting a set of features (product attributes) from the web pages containing the offers and comparing these features using a matching function. The existing gold standards for product matching have two shortcomings: (i) they only con作者: 現(xiàn)存 時間: 2025-3-22 19:19 作者: deactivate 時間: 2025-3-23 00:59
Terry A. Ackerman,Robert A. Hensong NFC technology for transactions like payment or ticketing in the real world brings a great benefit in terms of time savings, usability and process optimization. Therefore we propose an e-ticketing system making use of this proximity technology especially focusing on security aspects of the system 作者: bifurcate 時間: 2025-3-23 04:56
Wenyi Wang,Shuliang Ding,Lihong Songg NFC technology for transactions like payment or ticketing in the real world brings a great benefit in terms of time savings, usability and process optimization. Therefore we propose an e-ticketing system making use of this proximity technology especially focusing on security aspects of the system 作者: 厭惡 時間: 2025-3-23 08:30
Semirhan G?k?e,Giray Berbero?lution protocols has become an important topic for both, industry and academia. Traditional auction mechanisms allow price-only negotiations for which the winner determination is a computationally simple task. However, the need for new auction mechanisms that allow complex bids such as bundle bids and作者: 威脅你 時間: 2025-3-23 11:41
Jiahe Qian,Alina A. von Davieremory and most importantly the network bandwidth. When seen at Internet scale, a tiny wastage in a resource can translate into a huge loss. For instance, we will show that youtube.com homepage can potentially save up to 4500 GB worth of bandwidth every day! It is, therefore, important for the applic作者: legislate 時間: 2025-3-23 17:19 作者: 借喻 時間: 2025-3-23 18:27
Anton A. Béguin,Saskia Woolse new digital media has brought far-reaching changes in this sector. This research is one of the first studies that analyse online press reader behaviour on the Internet. Thus, this research studies the key factors that could influence on the choice of digital newspapers. More specifically, this stu作者: landfill 時間: 2025-3-23 22:45
New Item-Selection Methods for Balancing Test Efficiency Against Item-Bank Usage Efficiency in CD-Curpose of this study. We have developed several item-selection methods that successfully meet this goal. In addition, we have investigated the Kullback–Leibler expected discrimination (KL-ED) method that considers only measurement precision except for item-bank usage.作者: AVOID 時間: 2025-3-24 03:07
Comparison of Linear, Computerized Adaptive and Multi Stage Adaptive Versions of the Mathematics Asnatively, a multi stage scenario was designed to compare the efficiency of CAT and MSAT. Examinees were administered a fixed subtest with 15 items followed by two subtests having ten items each. Using MSAT in TPMS seemed to be producing more valid results in terms of content sampling than CAT.作者: irritation 時間: 2025-3-24 09:57 作者: JAUNT 時間: 2025-3-24 13:34 作者: Interim 時間: 2025-3-24 16:28
Thurstonian Item Response Theory and an Application to Attitude Items,y it is seldom used, partly because judges are needed to assess the location of an item, but also because of the emergence of contemporary tools such as the IRT. The current work is motivated by a study that assesses medical students’ attitudes toward obese patients. During the item-development phas作者: semiskilled 時間: 2025-3-24 20:27
Robustness of Mixture IRT Models to Violations of Latent Normality,when subpopulations are suspected. The usual mixture IRT model is typically estimated assuming normally distributed latent ability. Research on normal finite mixture models suggests that latent classes potentially can be extracted even in the absence of population heterogeneity if the distribution o作者: 節(jié)約 時間: 2025-3-25 02:26 作者: 漂浮 時間: 2025-3-25 03:43 作者: bleach 時間: 2025-3-25 07:44 作者: assail 時間: 2025-3-25 14:50
Graphical Representations of Items and Tests That are Measuring Multiple Abilities,y logistic model, the noncompensatory logistic model, a noncompensatory diagnostic model (DINA), and a compensatory diagnostic model (CRUM/GDM). Graphical representations can provide greater insight for measurement specialists and item/test developers about the validity and reliability of the multid作者: 國家明智 時間: 2025-3-25 18:33 作者: Formidable 時間: 2025-3-25 22:10 作者: 有限 時間: 2025-3-26 01:51 作者: Expand 時間: 2025-3-26 04:51 作者: LINE 時間: 2025-3-26 11:38 作者: 讓你明白 時間: 2025-3-26 16:05
A Dependent Bayesian Nonparametric Model for Test Equating,mmon practice, traditional methods of equating use parametric models where, apart from the test scores themselves, no additional information is used for the estimation of the equating transformation. We propose a flexible Bayesian nonparametric model for test equating which allows the use of covaria作者: 重畫只能放棄 時間: 2025-3-26 16:51
Using a Modified Multidimensional Priority Index for Item Selection Under Within-Item Multidimensioce examinees are given different sets of items from a large item bank. The construction of assessments usually involves fulfilling a large number of non-statistical constraints, such as item exposure control and content balancing. To improve measurement precision, test security, and test validity, t作者: Delectable 時間: 2025-3-26 21:26
Assessing Differential Item Functioning in Multiple Grouping Variables with Factorial Logistic RegrIF one grouping variable at a time or combine all the grouping variables into a single grouping variable in a test without a substantial meaning. These two approaches, analogous to one-way analysis of variance (ANOVA), are less efficient than an approach that considers all the grouping variables sim作者: Analogy 時間: 2025-3-27 05:08 作者: Facilities 時間: 2025-3-27 07:18
A Comparison of Confirmatory Factor Analysis of Binary Data on the Basis of Tetrachoric Correlationysis according to the congeneric model, the outcome does not always meet the expectations. As expected from analyzing the procedure of computing tetrachoric correlations, the data must show a high quality for achieving good results. In a simulations study it was demonstrated that such a quality coul作者: Pantry 時間: 2025-3-27 09:25
,On Cronbach’s Alpha as the Mean of All Split-Half Reliabilities,plit into two halves that are equal in size. This requires that the number of items is even, since odd numbers cannot be split into two groups of equal size. In this chapter it is shown that alpha is approximately identical to the mean of all split-half reliabilities, if a test consists of an odd nu作者: Stress 時間: 2025-3-27 15:11
,An Empirical Assessment of Guttman’s Lambda 4 Reliability Coefficient, is calculated by dividing the items in a test into two halves such that the covariance between scores on the two halves is as high as possible. However, although simple to understand and intuitively appealing, the method can potentially be severely positively biased if the sample size is small or t作者: APEX 時間: 2025-3-27 21:40
A General Saltus LLTM-R for Cognitive Assessments,he sub-populations of subjects with different problem solving strategies, cognitive processes, or developmental stages. Bayesian estimation of the proposed model is described with an application to a test of deductive reasoning in children.作者: 節(jié)省 時間: 2025-3-28 00:20 作者: 碌碌之人 時間: 2025-3-28 06:06 作者: ineptitude 時間: 2025-3-28 09:28
A Dependent Bayesian Nonparametric Model for Test Equating,ete shape of the score distribution may change as a function of the covariates. As a consequence, the form of the equating transformation can change according to covariate values. We discuss applications of the proposed model to real and simulated data. We conclude that our method has good performance compared to alternative approaches.作者: SLUMP 時間: 2025-3-28 12:20 作者: expansive 時間: 2025-3-28 16:09
What Do You Mean by a Difficult Item? On the Interpretation of the Difficulty Parameter in a Rasch dentification of the parameter of interest is also different, with consequences for the meaning of the item difficulty. Finally, for all the three models, the item difficulties are monotonically related to the marginal probabilities of a correct response.作者: consolidate 時間: 2025-3-28 19:13
2194-1009 ibuted by scholars from around the world.Topics with a prima.The 78th Annual Meeting of the Psychometric Society (IMPS) builds on the Psychometric Society‘s mission to share quantitative methods relevant to psychology. The chapters of this volume present cutting-edge work in the field. Topics includ作者: Amorous 時間: 2025-3-28 23:16 作者: Aviary 時間: 2025-3-29 04:40 作者: 無辜 時間: 2025-3-29 08:08
Conference proceedings 2015ok place in Arnhem, The Netherlands between July 22nd and 26th, 2013. The previous volume to showcase work from the Psychometric Society’s Meeting is New Developments in Quantitative Psychology: Presentations from the 77th Annual Psychometric Society Meeting (Springer, 2014)..作者: Amylase 時間: 2025-3-29 12:35
izations can be adapted automatically, e.g., by applying different notations for different user groups or by altering the appearance of visualized elements depending on their execution state. For this purpose we define a visualization model which maintains all required visualization parameters.作者: vanquish 時間: 2025-3-29 19:12 作者: Bph773 時間: 2025-3-29 21:40 作者: Eviction 時間: 2025-3-30 02:13 作者: 臭了生氣 時間: 2025-3-30 05:08 作者: 放逐某人 時間: 2025-3-30 10:27
Minjeong Jeon,Karen Draney,Mark Wilsond consists of over 500 product web pages originating from 32 different websites on which we have annotated all product attributes (338 distinct attributes) which appear in product titles, product descriptions, as well as tables and lists. The WDC Product Matching Gold Standard consists of over . cor作者: 的’ 時間: 2025-3-30 16:04 作者: 脆弱帶來 時間: 2025-3-30 20:13 作者: 臭了生氣 時間: 2025-3-30 21:30 作者: idiopathic 時間: 2025-3-31 04:27
Semirhan G?k?e,Giray Berbero?luI to different types of winner determination algorithms. This framework enables application programmers to specify buyer preferences, allocation rules and supplier offerings in a declarative manner, and solve the allocation problems without having to re-implement the computationally complex algorith作者: CYN 時間: 2025-3-31 07:15 作者: 吹牛需要藝術 時間: 2025-3-31 11:44
Marie-Anne Mittelha?user,Anton A. Béguin,Klaas Sijtsmarive their interests, which are then used to recommend their preferred popular blog topics and articles. The prototype system of m-CCS demonstrates that the system can effectively recommend mobile users desirable blog articles with respect to both popularity and personal interests.作者: 大看臺 時間: 2025-3-31 14:45
Anton A. Béguin,Saskia Woolsites on the choice of electronic newspaper. However, reputation and trust to the websites do not influence significantly on the choice of digital dailies. In this way, we must note that readers do not perceive risk or costs derived from making wrong choices, because the change of news′ supplier is f作者: 謙卑 時間: 2025-3-31 21:19 作者: 鬧劇 時間: 2025-3-31 22:03
Thurstonian Item Response Theory and an Application to Attitude Items,nses, and an affine transformation maps the judges’ scale onto the IRT scale. The model also takes into account measurement errors in the judges’ ratings. It is demonstrated that the linear logistic test model can be used to implement the proposed Thurstonian IRT approach.
