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533 results about "IntraText" patented technology

IntraText is a digital library that offers an interface while meeting formal requirements. Texts are displayed in a hypertextual way, based on a Tablet PC interface. By linking words in the text, it provides Concordances, word lists, statistics and links to cited works. Most content is available under a Creative Commons license It also offers publishing services that enable similar advantages.

Question and answer processing method and device, language model training method and device, equipment and storage medium

The invention discloses a question and answer processing method and device, a language model training method and device, equipment and a storage medium, and relates to the field of natural language processing. The specific implementation scheme is as follows: obtaining at least one candidate table matched with a to-be-queried question, wherein each candidate table comprises a candidate answer corresponding to the question; processing the at least one candidate table to obtain at least one table text, the table text comprising text content of each domain in the candidate table, the domains comprising titles, headers and cells; respectively inputting the question and each table text into a preset language model to obtain a matching degree of the question and each candidate table; according to the matching degree of each candidate table, outputting a reply table, wherein the reply table is a candidate table of which the matching degree with the question is greater than a preset value or acandidate table corresponding to the maximum matching degree in the at least one candidate table. The language model is adopted to perform semantic matching on the questions and the texts, so that the matching accuracy and recall rate of the questions and the tables are improved.
Owner:BEIJING BAIDU NETCOM SCI & TECH CO LTD

Fine-grained semantic detection method of harmful text contents in network

InactiveCN102609407AFulfilling Semantic Recognition RequirementsSmall uncertaintySpecial data processing applicationsData miningMachine learning
The invention belongs to the technical field of text content filtration, and particularly relates to a fine-grained semantic detection method of harmful text contents in network. Aiming at an introduced harmful information scene, the method comprises the steps of: constructing a train text set in which independent sentences are used as basic units, thereby establishing a mathematic description of the scene by using a probability topic model; performing information content extraction to a Web page to be detected; performing sentence identification to the text information; calculating a condition probability of each sentence under the model based on the established probability topic model; and accomplishing the fine-grained semantic detection under the set content detection sensitivity. According to the invention, the model construction is hardly affected by the number of the topics, and probability calculation on the sentence and word level is carried out effectively, so that the method is applicable for various application circumstances requiring harmful text content detection; furthermore fine-grained detection to harmful words and sentences of the text content is supported, so that the method improves the detection rate and reduces the misinformation rate effectively, and is beneficial to improving the practicability of text content filtration.
Owner:FUDAN UNIV

On-line classroom discussion short text real-time grouping method and system based on text clustering

The invention discloses an on-line classroom discussion short text real-time grouping method and system based on text clustering. The method comprises the steps of conducting word-splitting preprocessing and stop-word preprocessing on text data; obtaining all text item keywords, counting all the text item keywords and storing the text item keywords into a keyword table keyTable; conducting frequent item set mining on a preprocessed text set, filtering all sub-item quasi-frequent item sets and conducting coarse cluster classification in combination with a keyword table definition quasi-frequentitem set similarity calculation rule; mapping points, the closest to the cluster center, of all clusters to the text set, calculating TF-IDF values of text word sets in all the clusters and iteratingthe center of mass to be optimal according to the distance; pushing the obtained K clusters in real time in group. Through the combination of the keyword table definition quasi-frequent item set similarity calculation rule, the clustering accuracy of an on-line discussion short text is effectively improved; through a quasi-frequent item set filtering strategy, the clustering efficiency is effectively improved, and a clustering method is accelerated; the text information content discussed on an on-line classroom is automatically classified into multiple themes, and the text content is groupedaccording to the themes.
Owner:SOUTH CHINA UNIV OF TECH

Text information recommendation method and system

ActiveCN106202394AResolve semantic ambiguitySolving the Semantic Information Relevance ProblemSemantic analysisGeneral purpose stored program computerAmbiguityLatent Dirichlet allocation
The invention provides a text information recommendation method. The text information recommendation method comprises the following steps: establishing an information recommendation pool; acquiring text content of an article requiring information recommendation; segmenting the article requiring information recommendation into multiple words; predicting multi-dimensional topic distribution of the article requiring information recommendation according to multi-dimensional topic distribution of words in an LDA (latent dirichlet allocation) model base; calculating information correlation between the article requiring information recommendation and articles in the information recommendation pool; sorting related information in the information recommendation pool according to an information correlation calculation result; outputting recommended information according to a sorting result. With adoption of the method, semantic ambiguity of related information and semantic related problems during information recommendation can be solved, information heat and timeliness are taken into consideration, and the click-through rate of users is increased. The invention further provides a system for implementing the text information recommendation method.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Rumor detection method based on linear and nonlinear propagation

ActiveCN112256981ARich auxiliary informationMake up for the inability to flexibly learn dependencies between nodesDigital data information retrievalSemantic analysisTime informationNatural language understanding
The invention relates to a rumor detection method based on linear and nonlinear propagation, and belongs to the technical field of natural language understanding. According to the method, unified modeling representation is carried out on rumor nodes by utilizing text content and time information, and rumor detection is automatically carried out in a mode of combining linear and nonlinear propagation characteristics. Firstly, text information and time information contained in rumor nodes are used for carrying out joint representation on mixed features of the rumor nodes; then, node informationis aggregated along the linear time sequence and the nonlinear diffusion structure, expression of a source node is enhanced, and final propagation representation is formed. And finally, authenticity label prediction is carried out by using propagation representation. According to the method, node characteristics of rumors are extracted from two different angles, tree perception representation is obtained from a nonlinear diffusion mode, characteristics of propagation sequences are captured from linear time sequence interaction, and authenticity of the rumors can be accurately predicted.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Interactive microblog text emotion mining method based on emotion migration perception in social network

The invention discloses an interactive microblog text emotion mining method based on emotion migration perception in a social network, which comprises the following steps of: firstly, carrying out emotion polarity labeling on a microblog text based on single microblog semantics and text contents of interaction history of the single microblog semantics; secondly, adopting a pre-training language model BERT in the field of natural language processing, and extracting statement-level microblog emotion semantic features; secondly, extracting a context-level emotion semantic feature in an interactive social network context by using a long short-term memory (LSTM) network; then, introducing a learning normal form of multi-task learning, establishing an emotion migration perception auxiliary task, designing an emotion association relationship enhanced Attention mechanism by utilizing emotion migration characteristics, extracting emotion influence factors related to the current microblog from interaction history, then fusing the emotion influence factors with emotion semantic characteristics, carrying out emotion polarity classification, and constructing a microblog text emotion recognition model. According to the method, the accuracy of interactive microblog text emotion mining and the generalization ability of the model are greatly improved.
Owner:SOUTHEAST UNIV
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