Introduction to nanoscience and nanotechnologyaimanmukhtar1
Introduction of nanoscience/nanotechnology ,properties/potential applications of nanomaterials and electrodeposition of metal single component and alloy nanowires in AAO template
Basics of Electrochemical Impedance SpectroscopyGamryInstruments
An introduction to Electrochemical Impedance Spectroscopy (EIS) theory and has been kept as free from mathematics and electrical theory as possible. If you still find the material presented here difficult to understand, don't stop reading. You will get useful information from this application note, even if you don't follow all of the discussions.
Introduction to nanoscience and nanotechnologyaimanmukhtar1
Introduction of nanoscience/nanotechnology ,properties/potential applications of nanomaterials and electrodeposition of metal single component and alloy nanowires in AAO template
Basics of Electrochemical Impedance SpectroscopyGamryInstruments
An introduction to Electrochemical Impedance Spectroscopy (EIS) theory and has been kept as free from mathematics and electrical theory as possible. If you still find the material presented here difficult to understand, don't stop reading. You will get useful information from this application note, even if you don't follow all of the discussions.
Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. Metallurgy is also the technology of metals: the way in which science is applied to the production of metals, and the engineering of metal components for use in products for consumers and manufacturers. The production of metals involves the processing of ores to extract the metal they contain, and the mixture of metals, sometimes with other elements, to produce alloys. Metallurgy is distinguished from the craft of metalworking, although metalworking relies on metallurgy, as medicine relies on medical science, for technical advancement.
Metallurgy is subdivided into ferrous metallurgy (sometimes also known as black metallurgy) and non-ferrous metallurgy or colored metallurgy. Ferrous metallurgy involves processes and alloys based on iron while non-ferrous metallurgy involves processes and alloys based on other metals. The production of ferrous metals accounts for 95 percent of world metal production.
Magnesium and-its-alloys, structures, properties, effects of alloying, applic...SAAD ARIF
it has become the most researched element in past few years because of its versatile properties in engineering. Magnesium's discovery, properties, applications, structures, alloys, effect of alloying elements, binary alloy system of magnesium, advantages and disadvantages
Recycling Technology For Spent Lithium-ion batteriesbmeshram
#technologies for recycling spent batteries in economical and best ways
#under a lowest or minimum energy requirements in high sunlight area overall area in earth
Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. Metallurgy is also the technology of metals: the way in which science is applied to the production of metals, and the engineering of metal components for use in products for consumers and manufacturers. The production of metals involves the processing of ores to extract the metal they contain, and the mixture of metals, sometimes with other elements, to produce alloys. Metallurgy is distinguished from the craft of metalworking, although metalworking relies on metallurgy, as medicine relies on medical science, for technical advancement.
Metallurgy is subdivided into ferrous metallurgy (sometimes also known as black metallurgy) and non-ferrous metallurgy or colored metallurgy. Ferrous metallurgy involves processes and alloys based on iron while non-ferrous metallurgy involves processes and alloys based on other metals. The production of ferrous metals accounts for 95 percent of world metal production.
Magnesium and-its-alloys, structures, properties, effects of alloying, applic...SAAD ARIF
it has become the most researched element in past few years because of its versatile properties in engineering. Magnesium's discovery, properties, applications, structures, alloys, effect of alloying elements, binary alloy system of magnesium, advantages and disadvantages
Recycling Technology For Spent Lithium-ion batteriesbmeshram
#technologies for recycling spent batteries in economical and best ways
#under a lowest or minimum energy requirements in high sunlight area overall area in earth
A small presentation to know which fish are you kept with discus. From this presentation you know more about discus. Follow me for more updates about pets.
Módulo 12 - Introdução aos sistemas de informaçãoLuis Ferreira
1. Necessidade das bases de dados.
2. Sistemas de gestão de bases de dados.
3. Os modelos como métodos de conceção de sistemas.
4. Modelos utilizados na gestão de bases de dados (Relacional, Hierárquico, Rede).
What determines whether a person is an introvert or extrovert — nature or nurture? How are introverts and extroverts “wired” to process information differently? This session will provide an overview of introvert/extrovert personalities and emotional styles, and what each personality tends to bring to interactions.
Stephen L. Gerdes
D5650, USA
27. 向量相似度算法
余弦相似性( cosine-based similarity )
相关相似性( Pearson 相关系数 )
修正的余弦相似性( adjusted-cosine
similarity )
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27
34. In Lucene, a TermFreqVector is a representation of
all of the terms and term counts in a specific Field
of a Document instance
As a tuple:
termFreq = <term, term countD>
<fieldName, <…,termFreqi, termFreqi+1,…>>
As Java:
public String getField();
public String[] getTerms();
public int[] getTermFrequencies();
Lucene Term Vectors (TV)
Parallel Arrays
35. Lucene Term Vectors (TV)
Field.TermVector.NO: 不保存 term vectors
Field.TermVector.YES: 保存 term vectors
Field.TermVector.WITH_POSITIONS: 保存 term
vectors.( 保存值和 token 位置信息 )
Field.TermVector.WITH_OFFSETS: 保存 term
vectors.( 保存值和 Token 的 offset)
Field.TermVector.WITH_POSITIONS_OFFSETS: 保
存 term vectors.( 保存值和 token 位置信息和 Token 的
offset)
35
Term Vectors were officially added in the 1.4
Look at TermFreqVector interface definition
The getTerms() and getTermFrequencies() are parallel arrays, that is getTerms()[i] has a document frequency of getTermFrequencies()[i]