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35 results about "Stemming" patented technology

In linguistic morphology and information retrieval, stemming is the process of reducing inflected (or sometimes derived) words to their word stem, base or root form—generally a written word form. The stem need not be identical to the morphological root of the word; it is usually sufficient that related words map to the same stem, even if this stem is not in itself a valid root. Algorithms for stemming have been studied in computer science since the 1960s. Many search engines treat words with the same stem as synonyms as a kind of query expansion, a process called conflation.

Microblog theme emotion analysis method based on mixed characteristic calculation

The invention relates to a microblog theme emotion analysis method based on mixed characteristic calculation. The method comprises the following steps of (1) preprocessing microblog data: extracting microblog characteristics by applying Chinese words segmentation, English stemming and emotion extraction technologies, and utilizing priori knowledge to carry out initial assignment on the emotion and the theme of the microblog characteristics; (2) initializing algorithm parameters; (3) utilizing a Gibbs sampling technology to carry out valuation on joint distributions A and H of the parameters of a multi-characteristic theme emotion model MfJST; and (4) judging emotion polarity of each microblog through the appearance probability of the emotion polarity in the microblog; and detecting an implied theme of a microblog message through carrying out marginalization about a microblog emotion variable on the joint distribution A. according to the method, the concealed theme concerned by a user and the concealed real emotion of the user in the microblog message can be effectively excavated, the method is applied to various social media, such as Twitter and Sina microblog, the online public opinion monitoring can be optimized, and the information service quality can be improved.
Owner:FUJIAN NORMAL UNIV

High-efficiency chemical water-stemming

The invention discloses high-efficiency chemical water-stemming which comprises an outer packaging film (1) and a liquid (2), wherein the liquid (2) is sealed in the outer packaging film (1); the liquid (2) comprises components in parts by weight as follows: 6-8 parts of a smoke eliminating agent, 6-9 parts of a flame eliminating agent, 5-7 parts of a foaming agent, 6-7 parts of a detergent, 7-9 parts of a dust depressor and 60-70 parts of water; the main component of the smoke eliminating agent is a mixture of sodium carbonate, sodium hydrogen carbonate, sodium phosphate and sodium silicate; the main component of the flame eliminating agent is a mixture of potassium sulphate, potassium nitrate, sodium chloride and potassium chloride; the main component(s) of the foaming agent are / is sodium nitrite and / or potassium nitrite; the main component of the detergent is sodium dodecyl benzene sulfonate; and the main component of the dust depressor is a mixture of water-soluble polymer, glycerol and calcium chloride. The high-efficiency chemical water-stemming has excellent effects of degrading and dissolving poisonous gases, eliminating smoke and flame, suppressing dust and blocking blasting holes; the cost is low; and the high-efficiency chemical water-stemming is widely applied to fields where the space of a roadway is small, the wind speed is low, and poisonous and hazardous gases are difficult to dilute.
Owner:江苏徐矿能源股份有限公司

Stemming processing device

The invention discloses a stemming processing device. The stemming processing device comprises a stemming device body, wherein a motor is arranged on the stemming device body; a fixing buckle is arranged on the surface of the motor, and a hand-held handle is connected to the fixing buckle; a protective gasket is arranged on the left side of the motor, and a protective shell is arranged on the leftside of the protective gasket; a transmission shaft is arranged in the protective shell, and a speed change control box is arranged on the left side of the protective shell; a display is arranged onthe speed change control box, and a control button is arranged on the lower side of the display; a grip handle is arranged on the lower side of the control button, and the grip handle is provided witha switch; and a gear speed changer is arranged in a speed change control box.The stemming processing device is more efficient and practical. The stemming processing device is convenient to use and simple to operate through optimization, and single-person operation can be realized; and moreover, stemming can be rapidly solidified after being sprayed out and the hardness of the stemming can be strengthened by adding a quick coagulant in the processing process, and a target can be conveniently and quickly blocked.
Owner:SHANDONG LINENG LUXI MINING IND CO LTD

A Method for Mining Weighted Positive and Negative Association Patterns between English Words by Combining Item Weight and Frequency

The invention discloses an English word weighed positive-negative relevancy pattern excavation method for fusing item weights and frequentness. The method comprises the steps of firstly conducting preprocessing of removing stopwords, extracting stems, calculating feature word weights and the like on a to-be-excavated English text dataset to construct an English text index library and a feature word library, adopting a weighted support calculation method for fusing the item weights and the frequentness and a support-relevancy evaluation framework to excavate a feature work weighed positive itemset and a negative itemset and constructing a positive itemset library and a negative itemset library item, adopting a support-lift-confidence evaluation framework to excavate an inter-word weighed positive-negative relevancy rule pattern and constructing a feature word weighed positive rule pattern library and a negative rule pattern library. According to the English word weighed positive-negative relevancy pattern excavation method for fusing the item weights and frequentness, the insufficiency of an existing weighed relevancy pattern excavation technology can be overcome, the item weights and the frequentness are effectively fused, a more practical and more reasonable text feature word positive-negative relevancy rule pattern is excavated, and by applying the inter-word relevancy modesto the field of query expansion, the performance of text information retrieval can be improved.
Owner:GUANGXI UNIVERSITY OF FINANCE AND ECONOMICS
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