Abstract: Technical solutions are described for improving a data-mining process for identifying a desired population of a dataset. An example computer-implemented method includes, receiving the dataset that includes a plurality of data dimensions. The method also includes determining a set of predictors for a target variable, where a predictor is a data dimension that is relevant to the target variable. The method also includes identifying from the set of predictors, a false predictor, where the false predictor is a data dimension that results in an empty set of the desired population. The method also includes removing the false predictor from the set of predictors used for the data-mining process for identifying the desired population of the dataset.

Abstract: A blockchain of transactions may be referenced for various purposes and may be later accessed by interested parties for ledger verification and information retrieval. One example may include one or more of identifying a potential transaction during a transaction commitment procedure, retrieving committed transactions associated with an account, determining a priority associated with the potential transaction, determining a priority of data associated with the committed transactions, comparing the priority associated with the potential transaction with the priority of data associated with the committed transactions, and determining whether to commit the potential transaction in a blockchain or reject the potential transaction.

Abstract: A blockchain of transactions may be referenced for various purposes and may be later accessed by interested parties.

Abstract: A blockchain of transactions may be referenced for various purposes and may be later accessed by interested parties for ledger verification. One example method of operation may comprise one or more of identifying a production date associated with a product, creating a unique code to represent the production date and the product based on a hash of one or more blocks of a blockchain, and forwarding the unique code to a verification server to verify the product.

Abstract: An optical communications module is provided that has WDM capabilities for increased bandwidth and that is suitable for use with single mode optical fiber or multimode optical fiber. The module can be configured to have both WDM and BiDi functionality to further increase bandwidth and can have a single- or multi-channel configuration. The module has an integrally-formed body having an optical port and portions of an optical coupling system that are integrally formed in the body. The optical port is adapted to mate with an end of an optical fiber cable that holds one or more ends of one or more optical fibers, depending on whether the module is a single-channel or multi-channel module. The optical coupling system couples light between an end or ends of one or more optical fibers and one or more optoelectronic devices in a way that reduces back reflection and mode partition noise.

Abstract: According to embodiments of the present disclosure, a method, a device and a computer program product for route planning based on connectivity of nodes are provided. The method comprises determining a first plurality of nodes from an origin to a destination. The method further comprises dividing the first plurality of nodes into a plurality of collections based on travel time. In addition, the method comprises determining a route from the origin to the destination by selecting nodes from the plurality of collections.

Abstract: Technical solutions are described for improving a data-mining process for identifying a desired population of a dataset. An example computer-implemented method includes, receiving the dataset that includes a plurality of data dimensions. The method also includes determining a set of predictors for a target variable, where a predictor is a data dimension that is relevant to the target variable. The method also includes identifying from the set of predictors, a false predictor, where the false predictor is a data dimension that results in an empty set of the desired population. The method also includes removing the false predictor from the set of predictors used for the data-mining process for identifying the desired population of the dataset.

Abstract: A method for generating cube metadata based on an enhanced star schema may be provided. In some embodiments, the method may include extracting dimension references from a factless fact table in an enhanced star schema. The enhanced star schema may include a fact table, a plurality of dimension tables of the fact table and the factless fact table. In some embodiments, a hierarchy reference may be constructed based on the dimension references. In some embodiments, cube metadata may be generated by combining the hierarchy reference with measures obtained from the fact table and a hierarchy obtained from the dimension tables in the enhanced star schema.

Abstract: A mechanism is provided for identifying suggestions as to which log files associated with data in a data warehouse to search for particular data. Features from the contents of a plurality of log files from a set of log files are selected. The plurality of log files are grouped based on the selected features. Using extracted log event sequences, a correlation between the log event sequences and a plurality of data transaction tables from a set of data transaction tables in the data warehouse is calculated. Suggestions as to which log files in the set of log files should be searched is then identified for particular data based on a business relevance value and a utilized data ratio.

Abstract: An optics system is provided that comprises a glass-based diffractive optical element (DOE) for coupling an optical signal passing out of an optical waveguide into a photodetector. The glass-based DOE improves optical link performance by performing one or more of shortening a response time of a photodetector, preventing an overloading condition of the photodetector from occurring and managing back reflection of light from the photodetector. The glass-based DOE is relatively inexpensively to manufacture and is reliable over a wide range of temperatures.

Abstract: A mechanism is provided for predicting and reducing product return. For a historical regular product purchase associated with a current product purchase by a customer, a distribution of a number of product purchases and a distribution of a number of product returns is generated. A determination is made of a probability of return of the current product as a function of the number of product purchases, the number of product returns, a distance, and a browsing time. Responsive to the identified probability of return being greater than a predetermined threshold, the identified probability of return is used to reduce the probability of return of the product through one or more interactions with the product.

Abstract: A mechanism is provided for predicting and reducing product return. For a historical regular product purchase associated with a current product purchase by a customer, a distribution of a number of product purchases and a distribution of a number of product returns is generated. A determination is made of a probability of return of the current product as a function of the number of product purchases, the number of product returns, a distance, and a browsing time. Responsive to the identified probability of return being greater than a predetermined threshold, the identified probability of return is used to reduce the probability of return of the product through one or more interactions with the product.

Abstract: Bidirectional parallel optical transceiver modules for use in optical links and methods for communicating bidirectionally over the links are provided. The bidirectional parallel optical transceiver modules have features that ensure relatively low optical crosstalk, relatively low return loss and relatively high SNR. In addition, the modules have an in-line, zig-zag configuration that allows the modules to be compact and to have high bidirectional channel density for achieving high bandwidth.

Abstract: In a bidirectional optical communications module, an optics system is provided having a lens block that uses a single surface for reflecting light into or reflecting light passing out of the end of the optical fiber and a single surface for reflecting light toward a monitor photodetector. No other surfaces in the lens block are used to turn the light path. A filter block of the optics system that is adjacent to the lens block performs wavelength multiplexing and demultiplexing. The filter block reflects light at either its lower or upper surface back toward the lens block. In some embodiments, a portion of light passes through the upper surface of the filter block to provide some attenuation of light being transmitted so that the light is not coupled back into the light source. Because the upper surface of the filter block is the topmost surface of the optics system, the optics system can be very compact while also limiting the number of surfaces that turn the light path.

Abstract: In a bidirectional optical communications module, an optics system is provided having a lens block that uses a single surface for reflecting light into or reflecting light passing out of the end of the optical fiber and a single surface for reflecting light toward a monitor photodetector. No other surfaces in the lens block are used to turn the light path. A filter block of the optics system that is adjacent to the lens block performs wavelength multiplexing and demultiplexing. The filter block reflects light at either its lower or upper surface back toward the lens block. In some embodiments, a portion of light passes through the upper surface of the filter block to provide some attenuation of light being transmitted so that the light is not coupled back into the light source. Because the upper surface of the filter block is the topmost surface of the optics system, the optics system can be very compact while also limiting the number of surfaces that turn the light path.

Abstract: An optical communication system includes a transceiver with a light source, a transition lens and an optical medium. Each of the light source, the transition lens and the optical medium define a corresponding axis. The light source defines a normal launch axis. The transition lens defines an optical axis. The optical medium defines a longitudinal axis. A relative misalignment from a coaxial alignment of the corresponding axes of at least one the light source, the transition lens and the optical medium is used to reduce a back reflection incident at the light source. Such misalignments can be achieved by one or both of angular adjustments and offsets of the axes.

Abstract: A bidirectional optical communication system includes first and second transceivers arranged at opposed ends of an optical medium. Opto-electronic devices within the transceivers are arranged on respective mounting surfaces of planar substrates. First and second optical assemblies couple the respective transceivers to the optical medium. The optical assemblies include first and second optical elements arranged along an axis normal to the substrates. The first optical element is transparent to the optical signal transmitted from the respective transceiver and redirects the received optical signal from the other transceiver. The optical assemblies enable a single alignment of the opto-electronic devices and the optical medium.

Abstract: A method of creating a House of Quality for product design, the House of Quality including a plurality of customer requirements, each of which has corresponding requirement importance includes obtaining a plurality of customer comments on a product; determining, with a processing unit hot words from each of the customer comments, determining at least one customer requirement associated with the each of the comments and assessment rating for that customer requirement based on the hot words; and determining requirement importance of each of the customer requirements.

Abstract: Protection features are incorporated into an optical communications module to ensure that the optics system of the module will not be damaged or moved out of alignment by external forces exerted on a mating surface of the module when a connector module is mated with the optical communications module. One protection feature is a strike plate that is disposed on the mating surface of the module that redistributes forces exerted on the mating surface. Another protection feature is an optically-transmissive window formed in the mating surface and comprising an optically-transmissive element having anti-reflection (AR) coatings disposed on its upper and lower surfaces. The optics system is positioned beneath the mating surface so that forces that are exerted on the mating surface are not transferred to the optics system. Another protection feature is a design of the module that mechanically decouples the optics system from the mating surface.

Abstract: An optics system for use with a parallel optical communications module is provided that includes a support structure for supporting the ends of the optical fibers in a way that ensures that the ends of the optical fibers are maintained in precise optical alignment with respective optical coupling elements of the optics system. The support structure makes it virtually impossible for there to be any misalignment between the ends of the optical fibers and the respective optical coupling elements of the optics system to prevent misalignment problems from occurring. In addition, the optics system is configured in such a way that the likelihood that the ends of the optical fibers will be damaged as they are inserted into the optics system is very small.