About: Feature hashing

An Entity of Type: Algorithm, from Named Graph: http://dbpedia.org, within Data Space: dbpedia.org

Vectorizing features using a hash function

Property	Value
dbo:description	vectorizing features using a hash function (en)
dbo:wikiPageExternalLink	https://ml.dask.org/modules/generated/dask_ml.feature_extraction.text.HashingVectorizer.html%23dask_ml.feature_extraction.text.HashingVectorizer https://web.archive.org/web/20120609232923/http:/metaoptimize.com/qa/questions/6943/what-is-the-hashing-trick http://hunch.net/~jl/projects/hash_reps/index.html
dbo:wikiPageWikiLink	dbr:Heaps'_law dbc:Machine_learning dbr:Machine_learning dbr:Scikit-learn dbr:Sparse_matrix dbr:Inner_product_space dbr:Vowpal_Wabbit dbr:Document_classification dbr:Trie dbr:Locality-sensitive_hashing dbr:Count–min_sketch dbc:Articles_with_example_pseudocode dbr:Polysemy dbr:Kernel_method dbr:Discrete_metric dbr:Type–token_distinction dbc:Hashing dbr:Robert_Burton dbr:Associative_array dbr:Feature_(machine_learning) dbr:Hilbert_space dbr:Hash_table dbr:R_(programming_language) dbr:Zipf's_law dbr:The_Anatomy_of_Melancholy dbr:Linear_model dbr:Apache_Spark dbr:MinHash dbr:Complete_metric_space dbr:Kleene_star dbr:Apache_Mahout dbr:Hash_function dbr:Bloom_filter dbr:Multi-task_learning dbr:Yahoo!_Research dbr:Kernel_trick dbr:Gensim dbr:Actual_infinity dbr:TensorFlow dbr:One-hot_encoding dbr:Spam_filter dbr:Finite_support dbr:Bag_of_words dbr:Term-document_matrix
dbp:mathStatement	If the binary hash is unbiased , then is an isometry in expectation: (en)
dbp:name	Theorem (en)
dbp:proof	By linearity of expectation, Now, , since we assumed is unbiased. So we continue (en)
dbp:title	Proof (en)
dbp:wikiPageUsesTemplate	dbt:Reflist dbt:Math dbt:Proof dbt:Mvar dbt:Mono dbt:Math_theorem dbt:Annotated_link dbt:Short_description
dct:subject	dbc:Machine_learning dbc:Articles_with_example_pseudocode dbc:Hashing
rdf:type	dbo:Algorithm
rdfs:label	Feature hashing (en) Feature Hashing (ja)
owl:sameAs	freebase:Feature hashing wikidata:Feature hashing dbpedia-ja:Feature hashing dbpedia-global:Feature hashing
prov:wasDerivedFrom	wikipedia-en:Feature_hashing?oldid=1223687439&ns=0
foaf:isPrimaryTopicOf	wikipedia-en:Feature_hashing
is dbo:wikiPageRedirects of	dbr:Hash_kernel dbr:Hash_trick dbr:Hashing-Trick dbr:Hashing_trick dbr:Hashtrick
is dbo:wikiPageWikiLink of	dbr:Online_machine_learning dbr:Vowpal_Wabbit dbr:Locality-sensitive_hashing dbr:Count–min_sketch dbr:Streaming_algorithm dbr:Outline_of_machine_learning dbr:Bloom_filter dbr:Count_sketch dbr:Hash_kernel dbr:Hash_trick dbr:Hashing-Trick dbr:Hashing_trick dbr:Hashtrick
is foaf:primaryTopic of	wikipedia-en:Feature_hashing