1,728,589 research outputs found
Female dominance in indri indri
No full textA total of 15 months were spent on field research in eastern Madagascar studying the largest extant lemur Indri indri. Social relationships were analysed according to the frequency and direction of affiliative and agonistic behaviours, and with respect to the relative tree positions and behavioural synchrony of group members. The relationship between the adult male and adult female in each group was distinguished by the sub-ordinance of the former. Between group variation in adults’ relationships are examined with respect to the function of this behaviour. © 1979 S. Karger AG, Basel
The social behaviour and ecology of Indri Indri
No full textA period of 15 months was spent studying the behaviour and ecology of Indri indri in the eastern
rain-forest of Madagascar. Two groups were habituated
to the observer and followed every six weeks for a
complete year. Quantitatives sampling techniques were
developed which allowed several animals' behaviour to
be simultaneously recorded.
Surveys were conducted in three areas of different
botanical and topographical structure and censuses
performed both at the beginning and end of the study.
Some behavioural properties of a population of Indri
were investigated in one study site by collecting data
on vocal interactions between approximately 40 groups.
The maintenance activities of the species are
described and assessed. Seasonal and individual
variation in behaviour are compared both in the groups
studied and with other species. Social behaviour is
analysed (1) by measures of animal interaction and
(2) in terms of the inter-dependence of some individuals'
behaviour with others. Measures of spacing and feeding
are shown to be suitable to this approach. Evidence for
the territoriality of the species is presented and its
adaptive qualities considered. The roles of territory
definition, declaration and occupation are contrasted
and compared. The development of behaviour in infant
and juvenile Indri is examined in terms of individual
and social adaptations. Some facets of ecological and
social differentiation with Indri society are proposed
osirrc/indri-docker: OSIRRC @ SIGIR 2019 Docker Image for Indri
No full text<p>This is the docker image for <a href="https://sourceforge.net/projects/lemur/">Indri v5.13</a> conforming to the <a href="https://github.com/osirrc/jig/">OSIRRC jig</a> for the <a href="https://osirrc.github.io/osirrc2019/">Open-Source IR Replicability Challenge (OSIRRC) at SIGIR 2019</a>.</p>
Node-indri: Moving the indri toolkit to the modern web stack
No full textWe introduce node-indri, a Node.js module that acts as a wrapper around the Indri toolkit, and thus makes an established IR toolkit accessible to the modern web stack. node-indri exposes many of Indri’s functionalities and provides direct access to document content and retrieval scores for web development (in contrast to, for instance, the Pyndri wrapper). This setup reduces the amount of glue code that has to be developed and maintained when researching search interfaces, which today tend to be developed with specific JavaScript libraries such as React.js, Angular.js or Vue.js. The node-indri repository is open-sourced at https://github.com/felipemoraes/node-indri.Web Information System
The song of the Indris (Indri indri; Primates: Lemuroidea): Natural history, form, and function
No full textThe song of the largest Malagasy lemur was extensively studied in the field between 1972 and 1984. The song's structure is described, and the role of song in the natural history of Indri is examined by relating the naturally occurring variability of different song parameters to the behavior of habituated groups and the composition of other groups in the population. The function of an Indri group's song is complex, varying according to the location and identity of animals hearing it. Territorial aspects of the song are considered in detail and the nature of primate territorial vocalizations is critically discussed. © 1986 Plenum Publishing Corporation
Dockerizing indri for OSIRRC 2019
No full textThe Lemur Project was set up in 2000 by the Center for Intelligent Information Retrieval at UMass Amherst. It is one of the longest lasting open-source projects in the information retrieval (IR) research community. Among the released tools is Indri, a popular search engine that was designed for language-modeling based approaches to IR. For OSIRRC 2019 we dockerized Indri and added support for the Robust04, Core18 and GOV2 test collections.Web Information System
Indri indri
No full text<p> <i>Indri indri</i> (Gmelin, 1788). Syst. Nat., 13th ed., 1:42.</p> <p>TYPE LOCALITY: Madagascar.</p> <p>DISTRIBUTION: N.E. to E.C. Madagascar.</p> <p> PROTECTED STATUS: CITES - Appendix I and U.S. ESA - Endangered as <i>Indri</i> spp.</p> <p>ISIS NUMBER: 5301406002002001001.</p>Published as part of <i>James H. Honacki, Kenneth E. Kinman & James W. Koeppl, 1982, Order Primates, pp. 216-243 in Mammal Species of the World (1 st Edition), Lawrence, Kansas, USA :Alien Press, Inc. & The Association of Systematics Collections</i> on page 219, DOI: <a href="http://zenodo.org/record/7353017">10.5281/zenodo.7353017</a>
Indri indri
No full textIndri indri (Gmelin, 1788). Syst. Nat., 13th ed., 1:42. TYPE LOCALITY: Madagascar. DISTRIBUTION: NE to EC Madagascar. STATUS: CITES - Appendix I; U.S. ESA and IUCN - Endangered. SYNONYMS: ater, brevicaudatus, mitratus, niger, variegatus.Published as part of Colin P. Groves, 1993, Order Primates, pp. 243-277 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 247, DOI: 10.5281/zenodo.735312
Dynamic update of a virtual cell for programming and safe monitoring of an industrial robot
Get PDFA hardware/software architecture for robot motion planning and on-line safe monitoring has been developed with the objective to assure high flexibility in production control, safety for workers and machinery, with user-friendly interface. The architecture, developed using Microsoft Robotics Developers Studio and implemented for a six-dof COMAU NS 12 robot, established a bidirectional communication between the robot controller and a virtual replica of the real robotic cell. The working space of the real robot can then be easily limited for safety reasons by inserting virtual objects (or sensors) in such a virtual environment. This paper investigates the possibility to achieve an automatic, dynamic update of the virtual cell by using a low cost depth sensor (i.e., a commercial Microsoft Kinect) to detect the presence of completely unknown objects, moving inside the real cell. The experimental tests show that the developed architecture is able to recognize variously shaped mobile objects inside the monitored area and let the robot stop before colliding with them, if the objects are not too small
Node-indri: Moving the indri toolkit to the modern web stack
No full textWe introduce node-indri, a Node.js module that acts as a wrapper around the Indri toolkit, and thus makes an established IR toolkit accessible to the modern web stack. node-indri exposes many of Indri’s functionalities and provides direct access to document content and retrieval scores for web development (in contrast to, for instance, the Pyndri wrapper). This setup reduces the amount of glue code that has to be developed and maintained when researching search interfaces, which today tend to be developed with specific JavaScript libraries such as React.js, Angular.js or Vue.js. The node-indri repository is open-sourced at https://github.com/felipemoraes/node-indri.</p
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