watson natural language understanding

Natural Language Processing (NLP) is a technique for studying computer-processing human languages, including:1. Syntactic analysis : For a given sentence, word segmentation, part-of-speech tagging, named entity recognition and linking, syntactic analysis, semantic role recognition and polysemy disambiguation.2. Information Extraction : Extract important information from a given text, such as time, place, pe

data in content, which is embodied in content and quantity, for example, the description of the same second-hand goods by different users may be very different, which may have great difference in terms, description, length of text, etc. The same two items that appear in the description of an item are not necessarily present in another item. The existence of this kind of difference makes it difficult to use text data as a stable and reliable data source, especially in the UGC obvious scene. Thir

find a list of users can be recommended, to find high-weighted users and recommend books to him.At present, the main research areas of text mining are: Text structure analysis, text summarization, text classification, text clustering, text correlation analysis, distribution analysis and trend prediction.The required knowledge ReserveHere's a talk about learning about AI---machine learning--Natural language

I have been engaged in search engine related work has been 11 years, today with you talk about search engine core algorithm: Natural language and Boolean search. The discussion leads to the following conclusion: Search crawler and search engine use some heuristic method to rank the page, and return the result. Crawler observation mode to determine the content of a Web page, search engine search query mode,

First, go to the cmd input pip install path and then start downloading the NLTK packageFirst, the preparatory work1. Download NLTKMy previous because it is already downloaded, I now use the reference book is the Python Natural language processing, the most important package is NLTK, so you need to download this package first.Of course, you can also follow the method in the book to download.2, Jupyter Notebo

This article to talk about language, the author has been exposed to nearly 10 programming languages, back to think, only slowly understand the nature of programming language.According to personal understanding, the programming language and natural language (refers to human c

very many , difficult to remember , even if the completion of simple functions also requires a lot of assembly language code , It is easy to produce a BUG, difficult to debugU must know the hardware very well , the development efficiency is very low , the cycle is long and monotonous4) Use the occasionU operating system kernel, driver, microcontroller programEncryption, decryption and decoding of U softwareManufacture and prevention of U virusdebugg

concurrency is how to switch multiple activities (processes) within the system.Computer language is used to solve some specific problems, from the system control level of C and C + + to AI processing languages such as Lisp. Scripting languages often have something in common, they are commonly used in rapid development (low cost, high efficiency), and with a near-natural

|w1w2...wn-1) ≈p (wn|wn-1,wn-2,wn-3)In turn.So:Under the 1-gram model:P (W1, W2, W3, ..., WN) =p (W1) p (W2|W1) p (W3|W1W2) p (w4|w1w2w3) ... P (wn|w1w2...wn-1)≈p (W1) p (W2|W1) p (W3|W2) p (w4|w3) ... P (wn|wn-1)Under the 2-gram model:P (W1, W2, W3, ..., WN) =p (W1) p (W2|W1) p (W3|W1W2) p (w4|w1w2w3) ... P (wn|w1w2...wn-1)≈p (W1) p (W2|W1) p (W3|W1W2) p (w4|w2w3) ... P (wn|wn-2wn-1)Under the 3-gram model:P (W1, W2, W3, ..., WN) =p (W1) p (W2|W1) p (W3|W1W2) p (w4|w1w2w3) ... P (wn|w1w2...wn-1)

Statement: I am a freshman, idle bored. Write a C-language tutorial: A rookie. Big God do not spray!!!And then we're all going to compile with dev. VC + + is too old, no hint function, bad to start, and always wrong. VS is too big, make a C not, run too slow. Here is the dev download link ... Non-Toxic assuredhttp://pan.baidu.com/share/link?shareid=1587509971uk=4169326073Below to get to the chase ... Recognize variables (the general tutorial begins wi

This paper makes a brief analysis of the pointer problem in the "in-depth comprehension of C language" in Coolshell.#include intMainvoid){ inta[5]; printf ("%x\n", a); printf ("%x\n", A +1); printf ("%x\n", a); printf ("%x\n", a +1); return 0;}Suppose the address of a is: 0xbfe2e100, and the 32-bit machine, then what will the program output?#1: The first printf statement should have no problem, that is bfe2e100#2: The second printf statement you mi

I think, learning a language, whether it is a programming language, or natural language, first of all, from the macro to master the use of the key to make up the language.ANSI c A total of 32 keywords: Auto Break Case Char Const Continue Default Do Doubl

imaginary part is divided into 0Complex (x, y) is converted to a complex number, the real part is x, and the imaginary part is Y. X and y are numeric expressionsFive. ConstantA constant is a variable that cannot be changed, such as a commonly used mathematical constant, π is a constant, and in Python, a constant is usually represented by a variable name in all capitals.There are two more common constants in Python, Pi and EPi: Mathematical constant pi (pi, usually expressed in π)E: mathematical

determined by common sense and other factors; it is generally used to define static and natural structures between objects; Therefore, the association relation is a kind of "strong association" relationship;For example, between the passenger and the ticket is an association relationship; students and schools are an association;The association relationship by default does not emphasize direction, which means that objects know each other, and if the di