Abstract: A method and system for augmenting a training set used to train a classifier of documents is provided. The augmentation system augments a training set with training data derived from features of documents based on a document hierarchy. The training data of the initial training set may be derived from the root documents of the hierarchies of documents. The augmentation system generates additional training data that includes an aggregate feature that represents the overall characteristics of a hierarchy of documents, rather than just the root document. After the training data is generated, the augmentation system augments the initial training set with the newly generated training data.

Abstract: The present invention provides an electrically suppressed helix ferroelectric liquid crystal (ESHFLC) cell with polymer stabilization. The cell has a liquid crystal (LC) material that is a mixture comprising a monomer, a photo-initiator and a ferroelectric liquid crystal (FLC) where a polymer network has been established at a certain temperature to achieve constraints of ESHFLC electro-optical mode. The resultant mixture is characterized by a helix pitch less than and comparable to a FLC layer thickness of the cell, and provides a selective reflection in an UV region. The concentration of the monomer in the pure FLC mixture has also been optimized for the phase diagram, scattering and the tilt angle. The resultant mixture, i.e. the polymer stabilized ESHFLC cell, follows all constraints of the ESHFLC electro-optical mode and shows electro-optical characteristics similar to a typical ESHFLC cell.

Abstract: A system includes a solvent gas processing system having a high pressure reaction vessel configured to remove an acid gas from an untreated feed gas using a solvent in a lean solvent fluid stream. The system includes a high pressure reaction vessel is configured to output a treated clean gas and a first flow of a high pressure fluid stream via a first flow path. The system includes a turbine having a main nozzle, an auxiliary nozzle, and an outlet. The main nozzle is configured to receive a second flow of the high pressure fluid stream from the first flow path via a main flow path. The system includes an auxiliary nozzle valve disposed along an auxiliary flow path. The auxiliary nozzle valve is configured to control a third flow of the high pressure fluid stream into the auxiliary nozzle of the turbine.

Abstract: Implementations for identifying duplicate images in an image space are described. An image space is partitioned into a plurality of coarse clusters based on signatures of the images within the image space. The signatures are determined from compact descriptors of the images. Refined clusters that include one or more images of an individual coarse cluster are created based on pair-wise comparisons of the compact descriptors of images in the coarse cluster, and the refined clusters are identified as sets of duplicate images. The refined clusters are grown by searching in similar coarse clusters for images to add to the refined clusters.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.

Abstract: A method and system for detecting whether an outgoing communication contains confidential information or other target information is provided. The detection system is provided with a collection of documents that contain confidential information, referred to as “confidential documents.” When the detection system is provided with an outgoing communication, it compares the content of the outgoing communication to the content of the confidential documents. If the outgoing communication contains confidential information, then the detection system may prevent the outgoing communication from being sent outside the organization. The detection system detects confidential information based on the similarity between the content of an outgoing communication and the content of confidential documents that are known to contain confidential information.

Abstract: A field sequential color (FSC) ferroelectric liquid crystal (FLC) display cell, part of an FSC display, is provided. The FSC FLC display cell includes: two polarizers; an FLC layer, positioned between the two polarizers, the FLC layer comprising FLCs with helix pitch less than the thickness of the FLC layer; and a voltage source, configured to apply an electrical driving voltage to the FLC layer, the electrical driving voltage applied to the FLC layer having an amplitude greater than a threshold voltage for helix unwinding, and wherein the voltage source is further configured to apply electrical driving voltages to light emitting diodes (LEDs) of the FSC display to illuminate pixels of the FSC display. The pixels are illuminated in an FSC manner The FLC layer is configured to provide a defect-free layer of FLC under the electrical driving voltage applied to the FLC layer.

Abstract: A method and system for identifying informative links of a web site for use in crawling the web site is provided. A forum crawler analyzes sample web pages of a web forum to identify informative links and then crawls the web forum by following links determined to be informative and not following other links. The forum crawler system determines whether links are informative based on whether they are part of the overall structure of the web site or are used to select sequential information that has been split onto multiple web pages.

Abstract: Methods and systems for selecting advertisements to present to a user of a computing device are provided. An advertisement system selects advertisements to display to a user based on the serving area of candidate advertisements. The advertisement system selects those candidate advertisements whose serving area encompasses the user's current location. The advertisement system may also select candidate advertisements to present to a user based on a map area currently being displayed to the user. The advertisement system may filter the candidate advertisements based on the provider location being within the map area that is currently being displayed to the user.

Abstract: An exemplary method includes defining a vocabulary for emotions; extracting descriptions for songs; generating distributions for the songs in an emotion space based at least in part on the vocabulary and the extracted descriptions; extracting salient words from a document; generating a distribution for the document in an emotion space based at least in part on the vocabulary and the extracted salient words; and matching the distribution for the document to one or more of the distributions for the songs. Various other exemplary methods, devices, systems, etc., are also disclosed.

Abstract: A method and system for determining relevance of a document having text and images to a text string is provided. A scoring system identifies image text associated with an image of the document. The scoring system calculates an image score indicating relevance of the image text to the text string. The image score may be used in many applications, such as searching, summary generation, and document classification, image search, and image classification.

Abstract: While browsing, a user may interact with a wide variety of images. The user may upload and share images taken with a digital camera and/or search for image using a search engine. Because images are rich in contextual information, it may be advantageous to provide additional information, such as adjacent market advertising based upon matching advertisements with contextual information of the images. Accordingly, a query image may be used to retrieve a video frame set. The video frame set may be expanded with related video frames corresponding to adjacent markets. The expanded video frame set may be grouped into clusters of similar frames. The clusters may be used to rank advertisements based upon how similar the advertisements are to the clusters and/or video frames within the clusters. In this way, one or more ranked advertisements may be presented with the query image.

Abstract: Described herein is a technology that facilitates efficient large-scale similarity-based retrieval. In several embodiments documents, images, and/or other multimedia files are compactly represented and efficiently indexed to enable robust search using a long-query in a large-scale corpus. As described herein, these techniques include performing decomposition of a file, e.g., an image, a document containing an image, or a document-like representation of an image. The techniques use dimension reduction to obtain three parts, low-dimensional representations (major semantics), file specific terms (minor semantics), and background words, representing the major semantics in a feature vector and the minor semantics as keywords. Using the techniques described, file vectors are matched in a topic model and the results ranked based on the keywords.

Abstract: A method and system for generating a search result for a query of hierarchically organized documents based on retrieval of subtrees that are key resources for topic distillation is provided. The retrieval system may identify documents relevant to a query using conventional searching techniques. The retrieval system then calculates a subtree feature for subtrees that have an identified document as their root. After the retrieval system calculates the subtree feature for the subtrees, the retrieval system may generate a subtree relevance score for each subtree based on its subtree feature. The retrieval system may then order the identified documents based on their corresponding subtree relevances.

Abstract: A total-sky lightning event observation system and method may include a photographing device, a housing, a temperature control device, a light shielding device, a control module, a power supply module, a corona current sensor, a data acquisition device, a GPS antenna, a GPS timing module and a processing unit. The photographing device can capture total-sky digital images and transmit the images directly to the processing unit. The processing unit consecutively acquire corona current via the data acquisition device and judges whether there exists thunderstorm activity within the observed range; if there exists thunderstorm activity, the light shielding device is opened so as to enter a lightning observation mode, and the light shielding device is closed after the observation is finished so as to protect the photographing device in non-thunderstorm weather.

Abstract: Implementations for identifying duplicate images in an image space are described. An image space is partitioned into a plurality of coarse clusters based on signatures of the images within the image space. The signatures are determined from compact descriptors of the images. Refined clusters that include one or more images of an individual coarse cluster are created based on pair-wise comparisons of the compact descriptors of images in the coarse cluster, and the refined clusters are identified as sets of duplicate images. The refined clusters are grown by searching in similar coarse clusters for images to add to the refined clusters.

Abstract: Automated rich presentation of a semantic topic is described. In one aspect, respective portions of multimodal information corresponding to a semantic topic are evaluated to locate events associated with the semantic topic. The probability that a document belongs to an event is determined based on document inclusion of one or more of persons, times, locations, and keywords, and document distribution along a timeline associated with the event. For each event, one or more documents objectively determined to be substantially representative of the event are identified. One or more other types of media (e.g., video, images, etc.) related to the event are then extracted from the multimodal information. The representative documents and the other media are for presentation to a user in a storyboard.