英語 での Feature vectors の使用例とその 日本語 への翻訳
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Generating Feature Vectors.
To reduce memory consumption,Jubatus can hash keys of feature vectors.
This node saves feature vectors in files.
Note that hash_max_size is not a limit for a number of keys in the original datum,but a number of keys in(converted) feature vectors.
Finally, we generate feature vectors that correspond to each of the target pairs.
It is assumed inside the KaldiDecoder that the dimension number of feature vectors and mask vectors are the same.
Fv prints the feature vectors extracted from the input record by fv_converter.
The whole training data(feature vectors and the responses) are used to split the root node.
New statistical features and optionsFeature extraction:Transform a collection of text documents into feature vectors based on the Bag-Of-Words model.
All of the training data(feature vectors and the responses) is used to split the root node.
IMP lab. publication database: Detail of Publication Efficiency of object recognition methods using local descriptors such as SIFT andPCA-SIFT depends largely on the speed of matching between feature vectors since images are described by a large number of feature vectors.
Details of the node This node saves feature vectors in a format which can be treated by HTK.
We write the feature vectors and binary target labels(which indicate if the user purchased the item or not) together to the train. tsv file.
Cosine similarity calculations are then made against these feature vectors to identify similar customers(X, Y) and similar products(A, B).
The feature vectors that are the closest to the hyper-plane are called"support vectors", meaning that the position of other vectors does not affect the hyper-plane the decision function.
In general, increasing the number of local features for indexing(reference feature vectors) by generative learning enables us to improve the recognition rate.
Consider the set of the feature vectors: N vectors from a d-dimensional Euclidean space drawn from a Gaussian mixture: where is the number of mixtures, is the normal distribution density with the mean and covariance matrix, is the weight of the k-th mixture.
In general, to give structure to an image set based on feature vectors obtained from the image without knowing the actual image category, such information compression techniques as principal component analysis or a Self Organization Map can be used.
From the experimental results using 10,000 reference images,6.6 times reference feature vectors enabled us both to reduce the processing time to 2/3 from the original, and to improve the recognition rate by 12.2\%. Another experiment with 1 million reference images indexed by 2.6 billion reference feature vectors yielded the recognition rate of 90\% in 59ms/query.
Represents a name for the dimension of the feature vector.
Represents a weight for the dimension of the feature vector.
Represents a dimension of feature vector.
Jubatus supports this kind of feature vector extraction(in this case, from text of natural language into words) by default.
Many machine learning algorithmsrequire the input to be represented as a fixed-length feature vector.
For example, in a spam filter thatuses a set of words occurred in the message as a feature vector, the variable importance rating can be used to determine the most"spam-indicating" words and thus help to keep the dictionary size reasonable.
Major changes include: RandomForest supports sparse efficient feature vector format Added Feature selection, anomaly detection and topic modeling functionalities Added General predictors Collection: Hashing Filter(aws/idcf) You can now apply a hash filter to your data connector import.
You can initialize a cluster with a random feature vector, and then add all othersamples to their closest cluster(given that each sample represents a feature vector and a Euclidean distance used to identify“distance”).
Predicting with Decision Trees To reach a leaf node,and thus to obtain a response for the input feature vector, the prediction procedure starts with the root node. From each non-leaf node the procedure goes to the left(i.e. selects the left child node as the next observed node), or to the right based on the value of a certain variable, which index is stored in the observed node.