agent based models for species conservation
Tài liệu Báo cáo khoa học: "Statistical phrase-based models for interactive computer-assisted translation" pdf
Ngày tải lên :
20/02/2014, 12:20
... Phrase -based models ters to be solved: First, an output language model The usual statistical translation models can be is needed to distinguish valid sentences from inclassified as single-word based ... The experimental results have proved that the systems based on such models achieve a good performance, possibly, allowing a saving of human effort with respect to the classical post-editing operation ... initiative for overcoming the aboveIn a CAT scenario, the source sentence sJ and a mentioned restriction of single-word models is given prefix of the target sentence ti are given known as the template-based...
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Báo cáo khoa học: "Exploring Distributional Similarity Based Models for Query Spelling Correction" docx
Ngày tải lên :
17/03/2014, 04:20
... 62.6% Table Performance results for different models Table details the performance scores for the experiments, which shows that both of the two distributional similarity -based models boost accuracy ... Distributional Similarity -Based Models for Query Spelling Correction Motivation Most of the previous work on spelling correction concentrates on the problem of designing better error models based on properties ... methods for error model estimation are all based on the similarity between the character strings of qi and ci as described in 3.1 Here we describe a distributional similaritybased method for this...
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Báo cáo khoa học: "Exemplar-Based Models for Word Meaning In Context" pptx
Ngày tải lên :
30/03/2014, 21:20
... dataset, we obtained 33.1– 36.5 for actT; 33.3–38.0 for actP; 37.7-39.9 for actTP On the EP09 dataset, the numbers were 35.8–39.1 for actT; 38.1–39.9 for actP; 37.2–39.8 for actTP We did not have access ... more informative and noisier, while syntax -based representations deliver sparser and less noisy information Following the hypothesis that richer, topical information is more suitable for exemplar ... al (2009, TDP09) The results in Table compare these models against our best previous exemplar models and show that our models outperform these models across the board Due to the small sizes of...
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Báo cáo y học: " Evaluation of SOFA-based models for predicting mortality in the ICU: A systematic review" docx
Ngày tải lên :
13/08/2014, 11:23
... and APACHE models were developed for predicting hospital mortality, hence when comparing SOFAbased models to this family of admission -based models it is Available online http://ccforum.com/content/12/6/R161 ... strategy and showed that models based on SAPS II and temporal patterns outperformed models using the SAPS II score alone but recalibrated per day [8,9] Conclusion Interest in models based on the SOFA ... conclusions may be drawn Models based on SOFA scores at admission seem to be competitive with severity of illness models limited to the first 24 hours of admission Performance of models based on sequential...
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A collaborative, multi agent based methodology for abnormal events management
Ngày tải lên :
11/09/2015, 21:20
... 8-7: Performance of Self-organizing Maps agent ASOM in TE problem 235 Table 8-8: Performance of Voting -based decision fusion for TE problem 236 Table 8-9: Performance of Bayesian -based decision ... Collaborative Agents for Managing Efficient Operations 185 7.1 Introduction 185 7.2 Collaborative Agents for Managing Efficient Operations 186 7.2.1 Agent Environment 186 7.2.2 Agents ... 241 Table 8-18: Performance of Voting -based decision fusion for distillation-unit startup case study 242 Table 8-19: Performance of Bayesian -based decision fusion for distillation-unit...
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View based models for visual tracking and recognition
Ngày tải lên :
16/09/2015, 17:14
... available for system training In tracking an unknown or unfamiliar target, for instance, perhaps just one image sample is available for reference Hence, there is a need to develop ecient view -based models, ... description of a kernel -based image matching technique for objects under transformation The technique is based on a spatially-and-spectrally smooth similarity measure that oers capability for accurate and ... estimation To account for image deformations caused by posture changes, we develop the similarity measure under a typical type of transformation ane transformation which is formulated as a combination...
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Tài liệu Báo cáo khoa học: "Incremental Syntactic Language Models for Phrase-based Translation" pptx
Ngày tải lên :
20/02/2014, 04:20
... LMs Syntactic language models have also been explored with tree -based translation models Charniak et al (2003) use syntactic language models to rescore the output of a tree -based translation system ... hierarchical grammars for certain language pairs (Baker et al., 2009) In contrast to the above tree -based translation models, our approach maintains a standard (non-syntactic) phrase -based translation ... into phrasebased translation, we now formally define a specific incremental parser for use in our experiments The parser must process target language words incrementally as the phrase -based decoder...
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Tài liệu Báo cáo khoa học: "Towards History-based Grammars: Using Richer Models for Probabilistic Parsing*" docx
Ngày tải lên :
20/02/2014, 21:20
... technique for estimating the parameters for this model using decision trees The history -based grammar model provides a mechanism for taking advantage of contextual information from anywhere in the discourse ... probabilistic models of context In this work, we present a model, the history -based grammar model, which incorporates a very rich model of context, and we describe a technique for estimating ... of these models come close to incorporating enough context to disambiguate many cases of ambiguity A significant reason researchers have limited the contextual information used by their models...
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Tài liệu Báo cáo khoa học: "Phrase-Based Backoff Models for Machine Translation of Highly Inflected Languages" docx
Ngày tải lên :
22/02/2014, 02:20
... backoff models for combining in-domain and 42 out-of-domain data for the purpose of bootstrapping a part-of-speech tagger for Chinese, outperforming standard methods such as EM i i i Backoff Models ... accordingly The phrase table will thus include entries for phrases based on full word forms as well as for their stemmed and/or split counterparts For each entry with decomposed morphological i1 i2 ... known and unknown words differently and propose a backoff model for phrasebased translation Backoff Models Generally speaking, backoff models exploit relationships between more general and more specific...
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Báo cáo khoa học: "Employing Topic Models for Pattern-based Semantic Class Discovery" doc
Ngày tải lên :
08/03/2014, 00:20
... also perform preprocessing (refer to Section 3.4 for details) before building topic models for CR(q), where some lowfrequency items are removed Determine the number of topics: Most topic models ... value for all different query item q, as has been done for the topic model approach For fair comparison, the same postprocessing is made for all the approaches And the same preprocessing is made for ... topic models are more suitable to be used here than in processing an ordinary document corpus 3.3 Preprocessing and Postprocessing Preprocessing is applied to CR(q) before we build topic models for...
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A Survey of Activity Network-Based Process Models for Managing Product Development Projects doc
Ngày tải lên :
23/03/2014, 04:20
... the activity network, but analyzing models that account for iteration is challenging for large networks (ii) Many of the PD process models that account for information flow patterns and the resulting ... (Dougherty 2001) For example, a large process flow map in a conference room can be the focal point for group discussion and the vehicle for moving towards shared mental models Process models can provide ... 1998 Modeling information manufacturing systems to determine information product quality Management Science 44(4) 462– 484 Bashir, H A., V Thomson 2001 Models for estimating design effort and time...
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Báo cáo khoa học: "Utilizing Dependency Language Models for Graph-based Dependency Parsing Models" pptx
Ngày tải lên :
23/03/2014, 14:20
... using the DLMbased features consistently outperformed the Baselines For the basic models (MST1/2), we obtained absolute improvements of 4.28 and 3.51 points respectively For the enhanced models (MSTB1/2), ... Dependency language model Language models play a very important role for statistical machine translation (SMT) The standard Ngram based language model predicts the next word based on the N −1 immediate ... to calculate the scores for the parsing models (defined in Section 3.1) Accordingly, we reform Equation We define fDLM as a high-dimensional feature representation which is based on arbitrary features...
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Báo cáo khoa học: "Topic Models for Word Sense Disambiguation and Token-based Idiom Detection" pdf
Ngày tải lên :
23/03/2014, 16:20
... been proposed that make use of topic models for sense disambiguation Cai et al (2007), for example, use LDA to capture global context They compute topic models from a large unlabelled corpus ... detailed information about word senses (glosses, example sentences, synsets, semantic relations between senses, etc.) Sometimes such detailed information may not be available, for instance for languages ... paraphrases increases performance Longer paraphrases contain more information, and they are statistically more stable for inference We find that nouns get the greatest performance boost from including...
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báo cáo hóa học:" Decision tree-based acoustic models for speech recognition" potx
Ngày tải lên :
21/06/2014, 20:20
... results for the 5k ARPA wall-streetjournal task show that context information significantly improves the performance of DTbased acoustic models as expected Context-dependent DT -based models are ... make a forest for each HMM state From the table, we can see that a forest based on acoustic partitioning achieves the best performance among the MFCC systems The number of parameters in this forest ... differences in the feature-usage distributions for vowel class compared with that for all classes 5.4 Forest models Table shows the % WER of various forest DTAMs Triphone systems with or trees in...
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Báo cáo hóa học: " Research Article On the Utility of Syllable-Based Acoustic Models for Pronunciation Variation Modelling" pptx
Ngày tải lên :
22/06/2014, 19:20
... which comprised 144 speakers and 1152 sentences, for evaluating the acoustic models We intended to build longer-length models for words and syllables for which a sufficient amount of training data ... duration of 3.5 minutes) for CGN Feature extraction was performed using HTK [19] 3.2 Lexica and language models The vocabulary consisted of 6100 words for TIMIT and 10535 words for CGN Apart from nine ... TIMIT models more than the CGN models Given the greater impact of the longer-length models on the recognition performance, this is what one would expect There were two possible reasons for the...
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Báo cáo hóa học: " Domain-Based Predictive Models for Protein-Protein Interaction Prediction" docx
Ngày tải lên :
22/06/2014, 23:20
... use the information gain [19, 37] as the “goodness of split” measure, which is based on the classic formula from information theory The information gain measures the theoretical information content ... multilayer feed-forward network using the delta rule any useful information for our prediction Therefore, we excluded the pairs where at least one of the proteins has no domain information To further ... best performance, and decision tree performs almost as well Note that the training data set for decision tree is only 2/3 of the training data set used for the neural network and MLE Therefore,...
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Báo cáo y học: " Formation of translational risk score based on correlation coefficients as an alternative to Cox regression models for predicting outcome in patients with NSCLC" doc
Ngày tải lên :
13/08/2014, 16:20
... for N, and for M and H, 1-4 for the other) had to taken into consideration Therefore, each variable was divided by the number of their possible realizations (i.e by two for M and H, by four for ... antibody we used biotinylated goat anti-rabbit for Cox2 and MMP2, goat anti-mouse for CD68, and rabbit anti-goat for Notch3 and GAS (all obtained from Dako) For semi-quantitative analysis, a grading ... outcome is open to debate For example, expression of Gas6 appears to be beneficial for breast cancer patients but indicates poor prognosis for gastric cancer [8,14,15] For tumour-associated macrophages...
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