There is more than one label for a picture in the Multi-label Image classification (Multi-label image classification) task, so the evaluation cannot be categorized by the standard single-label image, which is mean accuracy, which uses a similar approach to information retrieval- MAP (mean Average Precision). Although the literal meaning of map and mean accuracy look similar, but the calculation method is much more cumbersome. p-r Curve Drawing uses a trained model to get the confidence score
();
Return value:
If the query fails, false is returned. if the query succeeds, multiple data entries are returned.
Array ('id' => 11, 'name' => 'recall blog 1'), array ('id' => 12, 'name' => 'recalling blog 2 '),)
Find () returns a piece of data.
$res = $obj->field('id,name')->where('id=10')->find()
Return value
If the query fails, false is returned. if the query succeeds, a data record is returned.
Array ('id' => 10, 'name' => '
click one of the images:
You can click search in the pre-search phase to perform image search directly or enter search in the query key words on the right.
Word.
Joint search: Enter sun in the search term
The evaluation function is used to evaluate the PAF algorithm. Result chart:
The top curve in the figure is the recall-precision curve of the shape feature vector algorithm extracted from the distance between the PAF and the center of the ce
Game on-line for a long time, some players slowly lost, in order to let just lost players back again so do a recall function! If a Level 200 player is not online for 10 days and a successful recall, it will give the recall player a generous bonus!Q: How do I recall this lost player?A: The
This article is rewarded by the Bihu.com content support program.
Plasma is a block chain expansion solution designed by Joseph Poon and Vitalik Buterin, which uses a chain to report to the root chain (i.e., Ethernet) to increase transaction throughput, so that there is no need to worry about security issues that usually arise when a small chain is used. OMG (Omisego) to the central Exchange is expected to plasma and design. We will use plasma to support scalability, complete chain transactions
the expanded dataset can improve the detection accuracy of about 10%.
Network Structure Selection
The different network structure has a great influence on the detection performance. We experimented on the vid validation set: The same training data, the detection accuracy of the faster R-CNN[7] model based on Resnet101[6] was about 12% higher than that of the faster R-CNN model based on vgg16[8. This is the key to MSRA's success in the 2015 ILSVRC and Coco competitions. The first few teams in th
single frame detection, and these missed targets may be included in the results of adjacent frame image detection. So we can use the optical flow information to transmit the detection results of the current frame forward backward, and the MGP processing can improve the target recall rate. As shown in Figure 1, the T-moment detection window is transmitted forward and backward, which can well fill the T-1 and t+1 time missed targets.
Figure 1. MGP sch
Turn https://www.zybuluo.com/frank-shaw/note/152851 New Understanding: I think the AUC, and KS similar. The AUC is a threshold based on the predicted probability (from large to small) and can be divided into no more than n threshold values for the sample count. You can get n recall and precision the ROC curve by connecting these points to a line. The AUC is the area under the ROC. The point closest to the upper left corner is the best threshold. The t
classified as a rare category, such as suffering from a disease, the picture contains numbers, negative is predicted to false.True mean prediction is correct, true negative true positive is the result of the prediction is negative, the prediction results are correct, the truth is negative; false refers to the prediction result error.I didn't think of a simple logistic regression, and most predictions were "true", that is, the predictions were correct.True-positive, true-negative, false-positive
Organized from Andrew Ng's machine learning course week6.Directory:
Advice for applying machine learning (Decide-to-do next)
Debugging a Learning Algorithm
Machine Learning Diagnostic
Evaluating a hypothesis
Model selection and Train/validation/test set
Bias and Variance
Diagnosing bias and variance
Regularization and Bias/variance
Learning curve
High bias
High Variance
Summary of decide what do
Thulac
Thulac is a set of Chinese lexical analysis kits developed by the natural language processing and social Humanities Computing Laboratory of Tsinghua University (the laboratory leader: Sun Maosung, Liu Zhiyuan, Liu Yang).Installed its C + + version, the corpus of Peking University participle, if not selected speech analysis, simple participle, 0.5s, at the same time using scoring script for evaluation:
= = = SUMMARY:
= = = Total Insertions: 995
= = Total Deletions: 2785 = = Total
subs
than to hear that you still recall
[01:24.8] In fact, I am also grateful when I heard you still believe in love
[01:45.82]
[01:47.83] I heard you often go through the alley
[01:52.76] I hear you're tired of being lonely
[01:56.1] I heard you greet me
[01:59.52] I had a good life and I was moved.
[02:06.04] Try to love a few people face love also honest many
[02:52.11] [02:12.94]
[02:52.67] [02:13.35] can only be heard to arrange
[02:56.63]
In traditional information retrieval, the basic index of the system: Recall (Recall) and precision ratio (pricision), recall is the number of related documents retrieved and the ratio of all relevant documents in the document library; The precision ratio is the percentage of the number of related documents retrieved and the total number of documents retrieved. Fo
divided, measures the recognition ability of the classifier to the positive example;4) Effect degree (specificity)specificity = tn/n, which represents the proportional proportion of all negative cases, measures the recognition ability of the classifier to the negative case;5) accuracy (precision)Precision is the measure of accuracy, representing the proportion of the example that is divided into a positive example, precision=tp/(TP+FP);6) recall rate
Evaluation Index:
1. Rank-n: The probability that the top (highest confidence) n graph in the search results has the correct result.
CMC Curve: Calculates a top-k hit probability, which is mainly used to evaluate the correct rate of rank in closed concentration.
For example: Lable is a m1 and is searched in 100 samples.
If the recognition results are M1, M2, M3, M4, M5 ..., the correct rate for rank-1 at this time is 100%;rank-2 and the correct rate for 100%;rank-5 is also 100%, if the recognit
the query Brutus and Caesar and Notcalpurnia, we remove the corresponding row vectors for the Brutus, Caesar, and Calpumia respectively, and reverse the vector of the calpumia, and then perform the bitwise-based and operation to get:
110100 AND110111 and 101111 = 100100
The 1th and 4th elements in the result vector are 1, which indicates that the script corresponding to the query is Antonyand Cleopatra and Hamlet. The evaluation criteria of the retrieval effect are generally correct rate and
1. Recall and precision
Traditional Information Retrieval and evaluation indicators mainly include the recall and precision ratio,
The query completion rate refers to the ratio of the number of relevant documents in the returned results to the total number of relevant documents in the system, which mainly reflects the integrity of the retrieval system recall resu
branches from existing SCWS instances and share dictionary/rule sets, primarily for multithreaded development.
4) Added partial version of Win32 DLL extension
The PHP instance code is as follows:
The code is as follows:
Note: as the above example, the input text, dictionaries, rules file the character set must be unified, in addition to MySQL 4.XX some do not support Chinese full-text search, can be stored in the keyword corresponding to the location code to facilitate full-text search .
Versi
Abstract: filtering microblogging messages for Social TV, a bootstrapping approach to identifying relevant tweets for Social TV
Social TV was named one of the ten most important emerging technologies in 2010 by the MIT Technology Review.
Social televisionIs a general term for technology that supports communication and social interaction in either the context of watching television, or related to TV content.
Some of these systems allow users to read microblogging messages related to the TV progra
the get_tops method to extract frequently used words while ($ tmp = $ so-> get_result () {print_r ($ tmp) ;}$ so-> close () ;?>
Note:For example, in the preceding example, the character sets of the input text, dictionary, and rule file must be unified. In addition, mysql 4. XX some do not support full-text search in Chinese. you can store the location code corresponding to the keyword to facilitate full-text search.
Version list
Version platform performance others
SCWS-1.1.x C code * Unix */* P
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