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As weather science advances, critical questions are arising about the possible sources of predictability on weekly, monthly and longer time-scales; seamless prediction; and the effective use of massively-parallel supercomputers. The science is primed for a step forward and is informed by the realization that there can be predictive power on all space and time-scales arising from currently poorly-understood sources of potential predictability. (...) How to structure seamless prediction research? The United Kingdom of Great Britain and Northern Ireland offers an excellent example: the world-class weather forecasting and climate prediction of the Met Office have once source.
Language:English
Score: 680213.5 - https://public.wmo.int/en/reso...ather-what%E2%80%99s-outlook-0
Data Source: un
However, the choice of transforms in JCTVC-B024 was only specified for the 9 intra prediction modes present in H.264/AVC. In this proposal, a choice of transforms is presented for the 34 intra prediction modes possible in the unified intra prediction in TMuC. (...) Choice of KLT/DCT for each intra prediction mode in H.264/AVC Mode Column Transform Row Transform 0 KLT DCT 1 DCT KLT 2 DCT DCT 3 KLT DCT 4 KLT KLT 5 KLT KLT 6 KLT KLT 7 KLT DCT 8 DCT KLT 2 Choice of transforms for Unified Intra Prediction The Unified Intra Prediction scheme was adopted into TMuC [3]. This proposal replaces the previous combination of Angular Intra prediction and Arbitrary Directional Intra. The new intra prediction modes, compared to that in H.264/AVC, allow for directional prediction at finer granularity.
Language:English
Score: 680140.14 - https://www.itu.int/wftp3/av-a..._10_C_Guangzhou/JCTVC-C039.doc
Data Source: un
Even if the RCT is turned on, the intra prediction shall be performed in the input color space domain. This could be a burden for the intra prediction performance for the input other than YUV format. (...) From these numbers, it can be observed that the use of independent intra prediction using luma prediction modes can greatly reduce prediction error which results in the reduction of coded bits for transform coefficients.
Language:English
Score: 680140.14 - https://www.itu.int/wftp3/av-a...te/2005_07_Poznan/JVT-P083.doc
Data Source: un
The prediction error is block coded in the same manner as the VM. (...) However, there were some promising proposals on new 2D mesh based prediction schemes to resolve this problem. The basic idea was the introduction of block translation to the mesh based prediction. By adopting this idea, this core experiment tests an interframe prediction method which utilizes multiple prediction modes such as block translation, affine/bilinear transform, etc.
Language:English
Score: 680033.3 - https://www.itu.int/wftp3/av-a...video-site/9706_Por/q15a33.doc
Data Source: un
The reference picture for current block is selected according to certain rules defined as in subclause 8.4.1. For P (predictive) blocks, with exception of the 16x8 and 8x16 block shapes, "median prediction" is used to predict motion vector for current block E from neighboring blocks A, B, C as shown in Figure 1. (...) For B (bi-predictive) blocks, motion vector predictions are treated differently for two cases. (...) Proposed method In our contribution, we propose to unify motion vector prediction for all cases: direct mode, skip mode, predictive block and bi-predictive block.
Language:English
Score: 680033.3 - https://www.itu.int/wftp3/av-a.../2002_10_Geneva/JVT-E061r1.doc
Data Source: un
Both temporal and spatial direct prediction is used for direct prediction. Non-stored P slice is included in the stream. (...) Functional stage : Weighted sample prediction process for B slice Purpose : Check that decoder handles weighted sample prediction for B slice. (...) Functional stage : Weighted sample prediction process for B slice Purpose : Check that decoder handles weighted sample prediction for B slice.
Language:English
Score: 679850.4 - https://www.itu.int/wftp3/av-a.../2003_09_SanDiego/JVT-I046.doc
Data Source: un
Both temporal and spatial direct prediction is used for direct prediction. Non-stored P slice is included in the stream. (...) Functional stage : Weighted sample prediction process for B slice Purpose : Check that decoder handles weighted sample prediction for B slice. (...) Functional stage : Weighted sample prediction process for B slice Purpose : Check that decoder handles weighted sample prediction for B slice.
Language:English
Score: 679850.4 - https://www.itu.int/wftp3/av-a.../2003_12_Waikoloa/JVT-J012.doc
Data Source: un
By using more elaborated models and by validate the prediction power, ML can make more accurate predictions. (...) Results 5.1 In-sample prediction of health insurance enrolment The in-sample prediction is first used to gain insights about the model performance. (...) First of all, in Tanzania where we used the 2015-16 DHS data for the prediction (9% insured), the out- of-sample prediction with the census data is 21%.
Language:English
Score: 679696.9 - https://www.un.org/ldc5/sites/...rharttgen_ldc_future_forum.pdf
Data Source: un
The calculation of Kappa coefficient is based on confusion matrix, the specific calculation formula is as follows: Among them, c represents the prediction task of categories, M represents the confusion matrix between the two sets of predictions, which is a matrix of size c × c, and n represents the number of samples in each set of predictions. (...) The closer the rms error is to 0, the better the model is at predicting CDR values. The R-squared value, also called the determination coefficient, is a statistical coefficient of the degree of fit between the regression prediction value and the calibration value. (...) The closer to 0, the closer the prediction result of the model is to random; the closer to 1, the better the fitting effect of the model regression prediction CDR value. ____________________________
Language:English
Score: 679627.1 - https://www.itu.int/en/ITU-T/f...ocuments/all/FGAI4H-I-041.docx
Data Source: un
The pixels A to I from neighbouring blocks are already decoded and may be used for prediction. 3.4.1 Mode 0: DC prediction Generally all pixels are predicted by (A+B+C+D+E+F+G+H)//8. (...) This is a 'diagonal' prediction. m is predicted by: (H+2G+F)//4 i,n are predicted by (G+2F+E)//4 e,j,o are predicted by (F+2E+I)//4 a,f,k,l are predicted by (E+2I+A)//4 b,g,l are predicted by (I+2A+B)//4 c,h are predicted by (A+2B+C)//4 d is predicted by (B+2C+D)//4 3.4.5 Mode 4: Diagonal prediction II This mode is used only if all A,B,C,D,E,F,G,H,I are inside the picture. This is a 'diagonal' prediction. a is predicted by (B+F)/2 b,e are predicted by (C+G)/2 The remaining pixels are predicted by (D+H)/2 3.4.6 Coding of Intra prediction modes Since each of the 4x4 luma blocks shall be assigned a prediction mode, this will require a considerable number of bits if coded directly.
Language:English
Score: 679568.2 - https://www.itu.int/wftp3/av-a...deo-site/9908_Ber/q15h36d1.doc
Data Source: un