摘要:
Methods and apparatus determine equivalent descriptions for an information need. In one implementation, if adjacent entries in a query log contain common terms, the uncommon terms are identified as a candidate pair. The candidate pairs are assigned a score based on their frequency of occurrence, and pairs having a score exceeding a defined threshold are determined to be synonyms.
摘要:
One embodiment of the present invention provides a system characterizes a document with respect to clusters of conceptually related words. Upon receiving a document containing a set of words, the system selects “candidate clusters” of conceptually related words that are related to the set of words. These candidate clusters are selected using a model that explains how sets of words are generated from clusters of conceptually related words. Next, the system constructs a set of components to characterize the document, wherein the set of components includes components for candidate clusters. Each component in the set of components indicates a degree to which a corresponding candidate cluster is related to the set of words.
摘要:
A micro-payment system has buyers, sellers, and a broker. The buyers establish accounts with the broker and provide payment information allowing the broker to invoice the buyers. The sellers establish accounts with the brokers and specify terms for accessing items, including electronic content, available from the sellers. The sellers also provide payment information that allows the broker to credit the sellers for sales of the items. The broker aggregates the buyers' micro-payment purchases and invoices the buyers. The broker also aggregates the sellers' micro-payment sales and credits the sellers.
摘要:
Methods and system for providing wireless access at a reduced rate. In one embodiment, access to a WAP is provided to an end-user at a rate subsidized by a first entity. The first entity includes advertisements in an end-user view.
摘要:
Concept similarity may be used to help resolve ambiguities with respect to ads served using, at least, keyword targeting. More specifically, concept similarity may be used to help determine ad relevancy and/or ad scores.
摘要:
Online information (such as advertiser Web pages in conjunction with products lists, Web content, existing online ads, etc.), or an electronic version of offline advertisement information, is used to generate online advertising information, such as a landing page, targeting information, and/or ad creative information.
摘要:
A method optimizes a predictive computation model efficiently. The method includes (i) selecting model parameters that are expected to take real values within a one-sided predetermined range; and (ii) iteratively: (a) receiving a set of input values; (b) executing the computation model based on the input values; (c) updating the values of the model parameters to minimize a loss function; and (d) examining each of the model parameters, such that, when the examined model parameter attains or moves past a value that is idempotent to the computation model, removing the model parameter from the computation model. In one embodiment, the predetermined range is either the range between a predetermined positive real value and positive infinity or the range between a predetermined negative real value and negative infinity. The predetermined positive real value or the predetermined negative real value may be an idempotent value to the model computation.
摘要:
Communications between entities who may share common interests. For entities determined to be sharing common interests (e.g., searching using the same terms or topics, browsing a page, a site or a groups of topically related sites), options for communication among the entities are provided. For example, a chat room may be dynamically created for persons who are currently searching or browsing the same or related information. As another example, a “homepage” may be created for each query and contain various types of information related to the query. A permission module controls which entities may participate, what types of information (and from what sources) an entity can (or desires to) receive, what types of information the entity may (or desires to) share.
摘要:
An apparatus and a method are provided for learning a program with a large number of parameters. In one embodiment, a method not only distorts the input values, but also distorts some of the parameters in the program model. Such an approach not only forces the learned program to acquire parameter values to predict missing or desired data, but also to correct errors in the input data and the program parameters themselves, thereby rendering the learned program more resilient to overfitting and falling into local optima.
摘要:
The present invention is directed to a client-server network system implementing a multi-tier caching strategy for a user to access a document efficiently. When serving a document to client, the document is examined for embedded references to other documents. The embedded references are extracted and then assigned a priority. The referenced documents are preloaded to the client prior to receiving a request for them. The referenced documents are obtained locally from the server cache or obtained from their respective web hosts and transmitted according to the assigned priority.