a comparison of reconstruction algorithms for breast tomosynthesis

... the false track count and the computation resource. For comparison, a probabilistic data association fil- ter with amplitude information (PDAF-AI) [28–30] was also run on the false track scenario. ... use a separate Markov chain for the presence or absence of a target as originally introduced for PDA in [22]. This approach has been used for the particle filter [13] and a generalised version was ... performance of four alternative track-before- detect algorithms has been investigated for a range of target SNR values and speeds. For most of the scenarios the differ- ence in detection performance...

Ngày tải lên: 22/06/2014, 19:20

... the task of text classification in a Bayesian learning framework. This approach assumes that the text data was generated by a parametric model, and uses training data to calculate Bayes-optimal ... | s=1  |D| i=1 N is P(c j |d i ) . (6) The class prior parameters are calculated as before accordingtoEquation4. Classification Given estimates of these parameters calculated from the training documents, classification can be performed ... Machine Learning, 1997. Pat Langley, Wayne Iba, and Kevin Thompson. An anal- ysis of Bayesian classifiers. In AAAI-92, 1992. Leah S. Larkey and W. Bruce Croft. Combining classifiers in text categorization....

Ngày tải lên: 16/03/2014, 19:20

... Learning Research, 9:1871–1874, June. Jan Haji ˇ c, Massimiliano Ciaramita, Richard Johansson, Daisuke Kawahara, Maria Ant ` onia Mart ´ ı, Llu ´ ıs M ` arquez, Adam Meyers, Joakim Nivre, Sebastian Pad ´ o, ... dependency parsers). 3 Results Table 3 tabulates efficiency and performance for all parsers; UAS and LAS are unlabeled and labeled at- tachment scores, respectively — the standard crite- ria for evaluating ... reviewers, for valuable comments. Supported in part by the National Natural Science Founda- tion of China (NSFC) via grant 61133012, the National “863” Major Project grant 2011AA0 1A2 07, and the National...

Ngày tải lên: 23/03/2014, 14:20

... e-mail: A comparison of a Naive Bayesian and a memory-based approach. In H. Zaragoza, P. Gallinari, and M. Rajman, edi- tors, Proc. Workshop on Machine Learning and Tex- tual Infbrmation Access, ... classify e-mail. In Papers from the AAAI Spring Symposium on Machine Learning in Information Access, pages 18-25, Stanford, CA. AAAI Press. Thomas M. Cover and Joy A. Thomas. 1991. Elements of InfOrmation ... models for Naive Bayes text clas- sification. In Proc. AAAI-98 Workshop on Learning for Text Categorization, pages 41-48. AAAI Press. Dunja Mladeni6 and Marko Grobelnik. 1999. Feature selection for...

Ngày tải lên: 31/03/2014, 20:20

... now adopted AUC for evaluating predictive ability of classifiers owing to the fact that AUC is a better performance metric than accuracy [31]. In this study, AUC was used as a value to compare the ... BioMed Central Page 1 of 8 (page number not for citation purposes) Journal of Translational Medicine Open Access Research A comparison of classification methods for predicting Chronic Fatigue Syndrome ... as testing data and different nine-tenths of the data as training data. Finally, the average estimate over all runs was reported by running the above regular 10-fold cross-validation for 100 times...

Ngày tải lên: 18/06/2014, 15:20

Ngày tải lên: 08/08/2014, 01:22

Ngày tải lên: 09/08/2014, 02:21

... See http://www.research.digital.com/SRC/juno-2. [ 10 ] JayaramanKrishnasamy, MarkJ.Jakiela, andDanielE.Whit- ney. Mechanics of vibration-assisted entrapment with appli- cation to design. In International Conference ... February 1971. [ 15 ] Balas K. Natarajan. Some paradigms for the automated de- sign of parts feeders. International Journal of Robotics Re- search, 8(6):98–109, December 1989. Also appeared in ... taking the Cartesian product over all the parameter values. It also allows us to specify equivalence classes of stable states, and it then automatically categorizes the state (and hence, the equivalence...

Ngày tải lên: 03/01/2014, 19:15

... that this approach might be well-suited for applications where lots of training data is available. 6 Discussion Annotated corpora of linguistic phenomena en- able many new natural language ... dependency parser. 1 Introduction A persistent goal of natural language processing research has been the automated transformation of natural language texts into representations that unambiguously ... some of the constraints used in Minpar A. In- stead of using all the information contained at a node, in Minipar B we only encode a path with its part of speech and relational information. For...

Ngày tải lên: 20/02/2014, 12:20

... empirical comparison of BP and DD also com- plements the theoretically-oriented comparison of marginal- and margin-based variational approxima- tions for parsing described by Martins et al. (2010). We ... it does not enforce grammaticality. A workaround for this problem is the adaptive supertagging (AST) ap- proach of Clark and Curran (200 4a) . It is based on a step function over supertagger beam widths, ... in a previously circulated draft of this paper, for two reasons: we evaluate only on sentences for which a parse was returned instead of all parses, to enable direct comparison with Clark and...

Ngày tải lên: 23/03/2014, 16:20

... having iden- tical sublanguage domain and test data, and using similar automata for analysis in the transfer system and transduction in the transducer system. Another justification is that ... particular type of fi- nite state automata associated with each word in the language. A relational head acceptor writes (or accepts) a pair of symbol sequences, a left sequence and a right sequence. ... above are averages over the same 200 test utterances used in the accu- racy evaluation. These timings are for an implemen- tation of the search algorithms in Lisp on a Silicon Graphics machine...

Ngày tải lên: 24/03/2014, 03:21

... is based on Shannon’s entropy. It is a statistical measurement of the capability of a feature to separate digit classes. If the information measure of a feature is high, it indicates that the ... for the use of neural network learning techniques for this type of application and data set, and insight about the appropriate design, use, and parameterization of the network to achieve acceptable ... between a feature’s template and the input image. A value of 0 indicates that a feature template did not match the digit image; a value of 1 indicates a complete match; and values in between these...

Ngày tải lên: 28/04/2014, 10:10

... 90(1):66-71. 15. Dias JJ, Dhukaram V, Abhinav A, Bhowal B, Wildin CJ: Clinical and radiological outcome of cast immobilization versus surgical treatment of acute scaphoid fractures at a mean follow-up of 93 ... system may relate to the thread pattern. The Acutrak 2 is a fully threaded design that generates a large amount of thread-to-bone contact area. In comparison, the Synthes screw has fewer threads, ... idea for the study and was responsible for revision of manuscript. The second author on the paper, JA, collected and analyzed the data and drafted the original manuscript. He is also the contact...

Ngày tải lên: 20/06/2014, 04:20

... 90(1):66-71. 15. Dias JJ, Dhukaram V, Abhinav A, Bhowal B, Wildin CJ: Clinical and radiological outcome of cast immobilization versus surgical treatment of acute scaphoid fractures at a mean follow-up of 93 ... greater final compression than the Synthes system may relate to the thread pattern. The Acutrak 2 is a fully threaded design that generates a large amount of thread-to-bone contact area. In comparison, ... idea for the study and was responsible for revision of manuscript. The second author on the paper, JA, collected and analyzed the data and drafted the original manuscript. He is also the contact...

Ngày tải lên: 20/06/2014, 07:20

... Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, BC, Canada Email: Amir Adel Rashidi - amiradel@interchange.ubc.ca; Aslam H Anis - aslam.anis@ubc.ca; Carlo A Marra* ... Health Utilities Index utilities? A comparison of patient and community preferences for health status in rheumatoid arthritis patients Amir Adel Rashidi 1 , Aslam H Anis 2 and Carlo A Marra* 3,4 Address: ... Marra* 3,4 Address: 1 Centre for Clinical Epidemiology and Evaluation, Faculty of Pharmaceutical Sciences, University of British Columbia, Canada, 2 MHA Program, Department of Health Care and Epidemiology,...

Ngày tải lên: 20/06/2014, 15:20

... 2009. 27 Y. Yao, M. Aslam Noor, K. Inayat Noor, Y C. Liou, and H. Yaqoob, “Modified extragradient methods for a system of variational inequalities in Banach spaces,” Acta Applicandae Mathematicae, vol. ... Cho, and S. M. Kang, “Convergence of an iterative algorithm for systems of variational inequalities and nonexpansive mappings with applications,” Journal of Computational and Applied Mathematics, ... theorems for resolvents of accretive operators in Banach spaces,” Journal of Mathematical Analysis and Applications, vol. 75, no. 1, pp. 287–292, 1980. 30 P. Katchang and P. Kumam, “An iterative algorithm...

Ngày tải lên: 21/06/2014, 07:20

... problematic feature and fall back to simpler operation. The feature names are based on a hierar- chical namespace, and new feature names can be registered with IANA. This means that any developer can ... places where a non-standard parameter has been added. If a vendor wishes to add a new value to some existing parameter, and there is no placeholder for a nonstandard ele- ment, one cannot be added. ... stateful since several messages are involved in call setup. SIP, on the other hand, uses a single request that contains all necessary information. H.323 also provides for an array of options and...

Ngày tải lên: 08/07/2014, 17:03

Ngày tải lên: 08/08/2014, 14:21

Ngày tải lên: 09/08/2014, 02:20

Ngày tải lên: 09/08/2014, 07:21