semantics

问题 I'm trying to wrap some column style divs in a row. Then apply overflow:hidden; to the row to make whatever floated columns are in the next row line up. <div class="row"> <div class="col">Column 1</div> <div class="col">Column 2</div> </div> <div class="row"> <div class="col">Column 3</div> <div class="col">Column 4</div> </div> <div class="row"> <div class="col">Column 5</div> <div class="col">Column 6</div> </div> Then use: .row{ overflow:hidden; } .col{ width:50%; float:left; } The problem

问题 Essentials of Programming Languages says References are sometimes called L-values. This name reflects the association of such data structures with variables appearing on the left-hand side of assignment statements. Analogously, expressed values , such as the values of the right-hand side expressions of assignment statements, are known as R-values . while https://course.ccs.neu.edu/csg111/lectures/lec06.html from a course based on the book says References are sometimes called L-values because

问题 Consider this project structure: MyComponent.qml: Item { id: innerId } Usage.qml: MyComponent { id: outerId } At first glance it seems like this creates a single object that has 2 different id's simultaneously. But that's impossible, if id is to be considered a property. To me it seems that an id is not so much a property of an object as it is a property of an object declaration . Is that true? It would explain how I can refer to the object as innerId in MyComponent.qml and as outerId in

问题 I am looking for a formal axiomatic definition of an example Kripke model in terms of ∀, ∃ assuming knowledge of simple predicate logic, boolean logic,... All descriptions of Kripke models I encounter simply introduce new notations through paraphrasing to english linguistic concepts (i.e. ☐ = "necessity"). While certainly both helpfull and motivating, it does not assure that I will have the same interpretation of what a Kripke model is as someone else. (this question is the result from good

问题 I am working on a natural language processing project in Java. I have a requirement where I want to identify words that belong to similar semantic groups. e.g. : if the words such as study , university , graduate , attend are found I want them to be categorized as being related to education. If words such as golfer , batsman , athlete are found, it should categorize all under a parent like sportsperson. Is there a way I can achieve this task without using and training approach. Is there some

问题 Using a web service or software library, I'd like to be able to discern words related by a root word (e.g., "seated" and "seatbelt" share the root word "seat" but "Seattle" wouldn't be considered a match). Simple string comparison seems unfeasible for this sort of thing. Short of defining my own dictionary, are there any libraries or web services that can not merely return word definitions, but return a word's "root words" so I can perform this type of check? 回答1: Here is the Snowball stemmer

问题 I'm looking for syntatic examples or common techniques for doing regular expression style transformations on words instead of characters, given a procedural language. For example, to trace copying, one would want to create a document with similar meaning but with different word choices. I'd like to be able to concisely define these possible transformations that I can apply to a text stream. Eg. "fast noun " to "rapid noun ", but "go fast." wouldn't get transformed (no noun afterwards. Or:

问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . I am looking to visualize ontologies for understanding and making others understand. I would prefer to have top-down hierarchy of

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: order of evaluation of function parameters Is it safe to use the following construction in C/C++? f(g(), h()); where g() is expected to be evaluated first , then h() . Do all compilers show the same behavior on all architectures? 回答1: NO! There is no guarantee what order these are carried out in. Only that both g() and h() are carried out before f(). See this: http://www.gotw.ca/gotw/056.htm I think there's an

问题 I want to use NLTK and wordnet to understand the semantic relation between two words. Like if I enter "employee" and "waiter", it returns something showing that employee is more general than waiter. Or for "employee" and "worker", it returns equal. Does anyone know how to do that? 回答1: Firstly, you have to tackle the problem of getting words into lemmas and then into Synsets, i.e. how can you identify a synset from a word? word => lemma => lemma.pos.sense => synset Waiters => waiter =>