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text mining

text mining
by

sangmin lee

on 23 May 2011

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Transcript of text mining

Text mining Team 6.
2005-12005 Lee Sangmin 이상민
2010-11983 서우성Seo Woosung
2010-12017 이신영Lee Shinyoung Application example Trend seek trend mining using text mining Measuring and analyzing trend
using data in twitter or blog Company’s real reputation
Today’s hot issue
Hidden news Introduction 1. beginning of Textming Text Mining Technique Galaxy S2 2. What is Text mining? 3. applications search word map (2011.04.26~2011.05.14) 1. Text Preprocessing 2. Text Mining Techniques search word trend (2011.04.26~2011.05.14) Release date More than 3million advance order
Long weekend effect The result of public opinion using trend seek
(2011.04.26~2011.05.14) Text mining is a new field that attempts to glean meaningful information from natural language text. How can we use it? predictive methods for analyzing unstructured information in marketing 'Text mining' can handle and analysis huge amount of data instantly so it is used to surveil terrorist from attacking and research is in active. (1) Security applications WebFountain developed by IBM is a system which
can change formation of data like web page, email, chattings into form that can be analysis by computer. (2) WebFountain Benefit Accurate
Cost effective
Rich data source Sentiment analysis may involve analysis of movie reviews for estimating how favorable a review is for a movie. Such an analysis may need a labeled data set or labeling of the affectivity of words. Thank you (3) Sentiment analysis importance of word vector interesting "IMPORTANCE" value excited 1. Vector space model 2. Probabilistic model 3. Logical model Example WHY? 1. Tokenization


Term Frequency : This movie is . I was because of this movie. 2. Filtering 3. Stemming Extracting Information for Human Consumption Assessing Document Similarity Extracting structured Information 2. Document Retrieval 2. Document Clustering 1. Vector space model dictionary 1. Text Summarization Extract important sentence Extraction Summarization Readable! Parents and adult relatives play a significant role in shaping a child's life. They teach them how to live, and struggle for the right things. However when children grow up, often they fail to realize the contributions of their parents and adult relatives in their lives. Teenage children think that being a teenager they are able to make all the decisions of their lives. In my opinion, parents and adult relatives should make important decisions for their teenage children because teenagers are unexperienced, overconfident and many times they do not realize the consequences that the imnportant decisions can have on their lives.

Teenagers, being new in the adult world and having their first experiences of their adult lives, think themselves as grownups and perfectly able to make their own decisions. However, most of the times, their decisions are influenced by their friends. For example a student may get into a top university, but just because his/her friend is going to college, he/she wishes to go to college too. In this case the decision is obviously influencial, and can have great negative effects on his/ her life. At such a point the parents or the adult relatives should make decisions for their children.

Another reason why parents or the adult relatives decisons are very important is that the teenagers are over confident. The teenagers havent still been into practical life, and they dont have an idea of how the practial world works. Specially before the university, teenagers are living in kind of a fantasy world, where they think everything is cool and perfect. For example they might think that playing basket ball in the school gym is definetly going to get them selected on the national team. This may be true in some cases, but usually it doesnt work out this way. So if the teenager, just neglects his/her studies, he/she is going to be defintely in loss. At such points, like choosing the subjects in highschool, parents and/or adult relatives should make decisions for their teenage children.

In conclusion, althought teenagers might think the decisions being imposed on them as a stone in their paths, it is infact a blessing for them. Teenagers, being iresoponsible, and unexpereinced are not always able to make decisions for themselves. Hence parents and/or adult relatives should make the decisions for them. Parents and adult relatives play a significant role in shaping a child's life. They teach them how to live, and struggle for the right things. However when children grow up, often they fail to realize the contributions of their parents and adult relatives in their lives. Teenage children think that being a teenager they are able to make all the decisions of their lives. In my opinion, parents and adult relatives should make important decisions for their teenage children because teenagers are unexperienced, overconfident and many times they do not realize the consequences that the imnportant decisions can have on their lives.

Teenagers, being new in the adult world and having their first experiences of their adult lives, think themselves as grownups and perfectly able to make their own decisions. However, most of the times, their decisions are influenced by their friends. For example a student may get into a top university, but just because his/her friend is going to college, he/she wishes to go to college too. In this case the decision is obviously influencial, and can have great negative effects on his/ her life. At such a point the parents or the adult relatives should make decisions for their children.

Another reason why parents or the adult relatives decisons are very important is that the teenagers are over confident. The teenagers havent still been into practical life, and they dont have an idea of how the practial world works. Specially before the university, teenagers are living in kind of a fantasy world, where they think everything is cool and perfect. For example they might think that playing basket ball in the school gym is definetly going to get them selected on the national team. This may be true in some cases, but usually it doesnt work out this way. So if the teenager, just neglects his/her studies, he/she is going to be defintely in loss. At such points, like choosing the subjects in highschool, parents and/or adult relatives should make decisions for their teenage children.

In conclusion, althought teenagers might think the decisions being imposed on them as a stone in their paths, it is infact a blessing for them. Teenagers, being iresoponsible, and unexpereinced are not always able to make decisions for themselves. Hence parents and/or adult relatives should make the decisions for them. Index every word! Query:
"ppt and technology" Consult Index 1. Text Categorization(Text Classification) predefined categories 1. Rules & decision trees no predefined category or “class” HOW PERFORMED? 2. training set take training set analyze training set Classification Scheme “unsupervised manner” 1. Entity Extraction Examples of entities Identifying linguistic constructions
that stand for objects Names of people, places, organizations, products
E-mail addresses, URLs
Dates, numbers, sums of money
Abbreviations
Acronyms and their definition 2. Informaion Extraction “A relevant article refers to a vehicle launch that is scheduled, in progress or has actually occurred and must minimally identify the payload, the date of the launch, whether the launch is civilian or military, the function of the mission and its status.” Input Template Vehicle:
Payload:
Mission Date:
Mission Site:
Mission Type (military, civilian):
Mission Function (test, deploy, retrieve):
Mission status (succeeded, failed, in progress,
scheduled): Output: Filled Template 1. Entity Extraction 2. Determine relationship between entities HOW? Table of contents 1. Introduction
- Beginning of textmining
- What is text mining?
- Applications

2. Text mining techniques
- Text preprocessing
- Text mining techniques

3. Application example
- Trend seek
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